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    1203 results match your criteria Clinical Implant Dentistry and Related Research [Journal]

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    Evaluation of volumetric dimensional changes in posterior extraction sites with and without ARP using a novel imaging device.
    Clin Implant Dent Relat Res 2017 Sep 14. Epub 2017 Sep 14.
    Department of Medicine, Surgery and Dentistry "Schola Medica Salernitana", University of Salerno, Via S. Allende, 84081 Baronissi (Salerno).
    Background: Alveolar ridge volume loss may be minimized when postextraction sockets are filled by bone substitutes.

    Purpose: The aim of the study was to measure the effect of alveolar ridge preservation (ARP) in maintaining the external contour of the ridge after fresh socket grafting with or without particulate anorganic bovine bone mineral (BBM) and resorbable barrier covering.

    Materials And Methods: In the present controlled study, patients subjected to single-tooth extraction were allocated to 2 groups: postextraction sockets grafted with bovine bone mineral (bbm), and naturally healing sockets (nat). Read More

    A retro-prospective effectiveness study on 3448 implant operations at one referral clinic: A multifactorial analysis. Part I: Clinical factors associated to early implant failures.
    Clin Implant Dent Relat Res 2017 Sep 8. Epub 2017 Sep 8.
    Department of Prosthetic Dentistry/Dental Materials Science, Institute of Odontology, Sahlgrenska Academy at Göteborg University, Göteborg, Sweden.
    Background: Limited numbers of large effectiveness studies on routine dental implant treatment are available in the literature.

    Purpose: To report retro-prospective data on prevalence of early implant failures in a large number of routine patients/operations at 1 referral clinic.

    Materials And Methods: A total of 2848 patients were consecutively provided with 9582 implants with an anodized surface (Nobel Biocare AB) during 3448 implant operations between 2003 and 2011. Read More

    A retro-prospective effectiveness study on 3448 implant operations at one referral clinic: A multifactorial analysis. Part II: Clinical factors associated to peri-implantitis surgery and late implant failures.
    Clin Implant Dent Relat Res 2017 Sep 8. Epub 2017 Sep 8.
    Department of Prosthetic Dentistry/Dental Materials Science, Institute of Odontology, Sahlgrenska Academy, Göteborg University, Göteborg, Sweden.
    Background: Little knowledge is available on implant treatment in large effectiveness studies in routine practice.

    Purpose: To report retro-prospective data on prevalence of peri-implantitis surgery and late implant failures in a large number of routine patients at 1 referral clinic.

    Materials And Methods: Altogether 9582 implants with an anodized surface (Nobel Biocare AB) were consecutively placed between 2003 and 2011 and followed-up to end of 2015. Read More

    Assessment of the effectiveness of platelet rich fibrin in the treatment of Schneiderian membrane perforation.
    Clin Implant Dent Relat Res 2017 Aug 30. Epub 2017 Aug 30.
    Department of Medical Pathology, Bülent Ecevit University School of Medicine, Zonguldak, Turkey.
    Background: The objective of this study is to evaluate the effect of Platelet rich fibrin (PRF) treatment of maxillary sinus membrane perforation on bone formation and new vascular supply and the success of dental implant survival rate.

    Methods: The dataset for this retrospective study consists of patients who received sinus augmentation using the lateral wall technique. A total of 16 patients (20 sinuses) the patients without sinus membrane perforation (10 maxiller sinus area with sinus floor augmentation) and with Schneiderian perforation (10 maxiller sinus area repairing with PRF and augmented sinus floor area) were included in this study. Read More

    Survival rate of titanium-zirconium narrow diameter dental implants versus commercially pure titanium narrow diameter dental implants: A systematic review.
    Clin Implant Dent Relat Res 2017 Aug 29. Epub 2017 Aug 29.
    Department of Prosthodontics, University of Sao Paulo, School of Dentistry, Sao Paulo, Brazil.
    Background: Despite the existence of several studies validating the use of narrow diameter implants, most of them are based on pure Ti alloys. There is few clinical evidence of the success of TiZr narrow diameter implants (TiZr NDIs) regarding survival rate (SR) and marginal bone loss (MLB).

    Purpose: The aim of this review was to systematically assess SR, as well as MBL of TiZr NDIs compared to commercially pure titanium narrow diameter implants (cpTi NDIs). Read More

    Long-term evaluation of osteotome sinus floor elevation and simultaneous placement of implants without bone grafts: 10-Year radiographic and clinical follow-up.
    Clin Implant Dent Relat Res 2017 Aug 29. Epub 2017 Aug 29.
    Department of Oral and Maxillofacial Surgery, Linköping University Hospital, Linköping, Sweden.
    Background: Insertion of an implant in the edentulous posterior maxilla is a challenging procedure because of poor bone quality and increased pneumatization of the maxillary sinus after tooth extraction. To increase the amount of bone, several surgical bone grafting techniques have been used-with considerable morbidity for patients. Osteotome sinus floor elevation (OSFE) is a less invasive technique. Read More

    Transcrestal sinus floor augmentation with immediate implant placement applied in three types of fresh extraction sockets: A clinical prospective study with 1-year follow-up.
    Clin Implant Dent Relat Res 2017 Aug 29. Epub 2017 Aug 29.
    State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
    Background: Immediate implant insertion and transcrestal sinus augmentation both can provide a lot of advantages for patients and clinicians.

    Objective: This prospective study aims to verify the use of a modified technique for immediate implant insertion simultaneously with sinus augmentation in different types of sockets.

    Materials And Methods: Thirty-seven patients were recruited for the clinical study and were divided into 3 groups according to the relationship of their maxillary molar roots and sinus floor: group 1 with none of the teeth roots contacts sinus floor; group 2 as at least 1 teeth root contacting sinus floor, but no root is observed penetrating into sinus cavity; group 3 with at least 1 teeth root penetrating into sinus cavity. Read More

    One-piece internal zirconia abutments for single-tooth restorations on narrow and regular diameter implants: A 5-year prospective follow-up study.
    Clin Implant Dent Relat Res 2017 Aug 9. Epub 2017 Aug 9.
    Department of Prosthetic Dentistry and Oral Function, Faculty of Dentistry, Institute of Clinical Dentistry, University of Oslo, Oslo, Norway.
    Background: Studies have reported an increased risk for fractures of zirconia abutments compared with titanium abutments.

    Purpose: The aim of this study was to evaluate single-tooth implant restorations with one-piece yttria-stabilized internal zirconia abutments on narrow and regular diameter implants up to 6 years after insertion.

    Material And Methods: This study comprises 52 consecutively treated patients, with a median age of 19 years. Read More

    Biomechanical behavior of titanium and zirconia frameworks for implant-supported full-arch fixed dental prosthesis.
    Clin Implant Dent Relat Res 2017 Aug 2. Epub 2017 Aug 2.
    Department of Dental Materials and Prosthodontics, Ribeirão Preto School of Dentistry, University of São Paulo, Ribeirão Preto, SP, Brazil.
    Background: The biomechanical behavior of implant-supported titanium and zirconia full-arch fixed dental prosthesis (FAFDP) frameworks require further investigation.

    Purpose: Strains transferred by implant-supported titanium (Ti) and zirconia (Zr) FAFDP frameworks were analyzed.

    Materials And Methods: Maxillary 14-unit FAFDPs supported by 6 implants and 12-unit FAFDPs supported by 4 implants were tested. Read More

    Measurement of the zygomatic region for the optimal placement of quad zygomatic implants.
    Clin Implant Dent Relat Res 2017 Aug 1. Epub 2017 Aug 1.
    Department of Oral-Maxillofacial Implantology, Ninth People's Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, 200011, China.
    Background: The zygomatic implant is suggested to be placed in zygomatic areas with the largest thickness, but regions to obtain the largest bone-to-implant contact (BIC) were unknown.

    Purpose: To identify the zygomatic regions for placing quad zygomatic implants that obtain the largest BIC.

    Materials And Methods: The zygomatic thicknesses of 300 zygomata were measured at total 12 points on the superior, middle, and inferior areas on the 3-dimensional reconstruction images. Read More

    Comparison of marginal bone loss and implant success between axial and tilted implants in maxillary All-on-4 treatment concept rehabilitations after 5 years of follow-up.
    Clin Implant Dent Relat Res 2017 Aug 1. Epub 2017 Aug 1.
    Oral Surgery Department, Maló Clinic, Lisbon, Portugal.
    Background: There is need for more scientific and clinical information on longer-term outcomes of tilted implants compared to implants inserted in an axial position.

    Purpose: Comparison of marginal bone loss and implant success after a 5-year follow-up between axial and tilted implants inserted for full-arch maxillary rehabilitation.

    Material And Methods: The retrospective clinical study included 891 patients with 3564 maxillary implants rehabilitated according to the All-on-4 treatment concept. Read More

    Comparison between mineralized cancellous bone allograft and an alloplast material for sinus augmentation: A split mouth histomorphometric study.
    Clin Implant Dent Relat Res 2017 Jul 27. Epub 2017 Jul 27.
    Department of Periodontology, The Maurice and Gabriela Goldschleger School of Dental Medicine, The Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.
    Background: Several grafting materials have been used in sinus augmentation procedures including autogenous bone, demineralized freeze-dried bone, hydroxyapatite, β-tricalcium phosphate, anorganic deproteinized bovine bone, and combination of these and others. Yet, the issue of the optimal graft material for sinus floor augmentation is controversial.

    Purpose: This prospective, randomized split-mouth study was undertaken to histomorphometrically compare a biphasic calcium phosphate (BCP) alloplastic bone substitute and a human bone mineral allograft (freeze-dried bone allograft, FDBA) in patients undergoing bilateral maxillary lateral sinus floor augmentation. Read More

    Evaluation of complication rates and vertical bone gain after guided bone regeneration with non-resorbable membranes versus titanium meshes and resorbable membranes. A randomized clinical trial.
    Clin Implant Dent Relat Res 2017 Jul 26. Epub 2017 Jul 26.
    Unit of Oral and Maxillofacial Surgery, Department of Biomedical and Neuromotor Science (DIBINEM), Alma Mater Studiorum - University of Bologna, Bologna, Italy.
    Background: The partial edentulous posterior mandible is often a challenge area that requires a bone reconstructive surgery for implants placement.

    Purpose: This RCT was aimed to evaluate complications rate and vertical bone gain after Guided Bone Regeneration (GBR) with dense non-resorbable d-PTFE titanium-reinforced membranes (Group A) versus titanium meshes covered by cross-linked collagen membranes (Group B).

    Material And Methods: 40 partially edentulous patients with atrophic posterior mandible, were randomly divided into two study group: 20 patients were treated with one stage GBR by means of non-resorbable d-PTFE titanium-reinforced membranes (Group A); and 20 patients, by means of titanium mesh covered by cross-linked collagen membranes (Group B). Read More

    Histologic and histomorphometric assessment of sinus-floor augmentation with beta-tricalcium phosphate alone or in combination with pure-platelet-rich plasma or platelet-rich fibrin: A randomized clinical trial.
    Clin Implant Dent Relat Res 2017 Jul 26. Epub 2017 Jul 26.
    Department of Histology and Embryology, Faculty of Medicine, Ataturk University, Erzurum, Turkey.
    Background: The potential effects of adding pure platelet-rich plasma (P-PRP) or platelet-rich fibrin (PRF) to beta-tricalcium phosphate (β-TCP) graft substitute on bone formation and regeneration after maxillary sinus-floor elevation remains unclear.

    Purpose: To compare the histologic and histomorphometric outcomes of maxillary sinus-floor augmentation among β-TCP alone, P-PRP-mixed β-TCP, and PRF-mixed β-TCP.

    Material And Methods: In this randomized clinical trial, elevated sinus cavities were grafted with β-TCP (the control group), P-PRP-mixed β-TCP (the P-PRP group), and PRF-mixed β-TCP (PRF group). Read More

    Dimensional changes of the maxillary sinus following tooth extraction in the posterior maxilla with and without socket preservation.
    Clin Implant Dent Relat Res 2017 Jul 26. Epub 2017 Jul 26.
    Department of Periodontology, School of Graduate Dentistry, Rambam Health Care Campus, Haifa, Israel.
    Background: Sinus pneumatization is commonly observed following tooth extraction in the posterior maxilla, however, the role of this pneumatization in the overall changes in the vertical bone height is not clear.

    Purpose: To compare dimensional changes in the alveolar ridge and corresponding maxillary sinus following tooth extraction, with or without socket preservation.

    Materials And Methods: 42 patients underwent tooth extraction (control group) and 21 patients underwent tooth extraction with socket preservation using DBBM (study group). Read More

    Clinical, radiological, and gene expression analyses in smokers and non-smokers, Part 2: RCT on the late healing phase of osseointegration.
    Clin Implant Dent Relat Res 2017 Jul 26. Epub 2017 Jul 26.
    Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
    Background: The mechanisms behind the impact of smoking on osseointegration are not fully understood.

    Purpose: To investigate the initial clinical and molecular course of osseointegration of different implants in smokers and non-smokers in a randomized controlled trial (RCT).

    Materials And Methods: Smoking (n = 16) and non-smoking (n = 16) patients received 3 implant types: machined, oxidized, and laser-modified surfaces. Read More

    Post-extraction implant placement into infected versus non-infected sites: A multicenter retrospective clinical study.
    Clin Implant Dent Relat Res 2017 Jul 26. Epub 2017 Jul 26.
    Section of Implant Dentistry and Oral Rehabilitation, Dental Clinic, IRCCS Galeazzi Institute, Milan, Italy.
    Purpose: The aim of this study was to assess whether immediate implant placement into post-extraction sites presenting a chronic infection poses a greater risk of implant failure than immediate placement in non-infected sites.

    Materials And Methods: Records of patients who underwent extraction and immediate implant placement into both infected and non-infected sites from January 1998 to September 2014 at 5 different dental centers were considered for inclusion. Included records were subjected to statistical analysis of survival rates, along with a number of other patient-, implant-, surgery-, and prosthesis-related variables. Read More

    Three-year clinical prospective follow-up of extrasinus zygomatic implants for the rehabilitation of the atrophic maxilla.
    Clin Implant Dent Relat Res 2017 Jul 13. Epub 2017 Jul 13.
    Department of Periodontology and Oral Implantology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil.
    Background: Placement of extrasinus zygomatic implants to support implant-supported rehabilitation is still controversial due to the scarcity of data.

    Purpose: To evaluate the clinical outcomes of 94 extrasinus zygomatic implants, installed laterally to the maxillary sinus, for rehabilitation of the edentulous atrophic maxillae.

    Materials And Methods: A total of 42 patients (mean age 58 years) with severely atrophic maxillae were treated between November 2010 and July 2011, and followed up until July 2014. Read More

    Randomized clinical trial for the biological evaluation of two nanostructured biphasic calcium phosphate biomaterials as a bone substitute.
    Clin Implant Dent Relat Res 2017 Jul 13. Epub 2017 Jul 13.
    Dental Clinical Research Center, Oral Surgery Department, Dentistry School, Fluminense Federal University, Niteroi, Rio de Janeiro, Brazil.
    Background: The presence of nonresorbable residual granules of hydroxyapatite (HA) may decrease the bone/implant interface. To balance resorption and bone formation biphasic calcium phosphate ceramics compounds applied at different rates have been studied.

    Purpose: The aim of this trial was to compare the clinical, histological, and histomorphometric responses of two new biphasic calcium phosphate biomaterials in fresh dental sockets after 3 and 6 months. Read More

    A cost analysis of a long-term prospective study of patients treated with immediately loaded implant-supported mandibular overdentures.
    Clin Implant Dent Relat Res 2017 Jul 13. Epub 2017 Jul 13.
    Department of Oral Rehabilitation and Community Care, Faculty of Dental Surgery, University of Malta, Msida, Malta.
    Background: The economic burden for patients seeking treatment with implant-supported prostheses has not been given adequate attention.

    Purpose: To document long-term costs from a prospective trial on edentulous patients treated with mandibular implant-supported overdentures and 2 loading protocols.

    Materials And Methods: The direct clinical and time costs for 35 patients receiving an immediate-loading protocol (ILP) and 40 patients with a conventional-loading protocol, over 14 years of observation, were analyzed in 2016 Canadian dollars as a base year. Read More

    Stem cell therapy for reconstruction of alveolar cleft and trauma defects in adults: A randomized controlled, clinical trial.
    Clin Implant Dent Relat Res 2017 Jun 28. Epub 2017 Jun 28.
    Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, Michigan.
    Background: Stem cell therapy with bone marrow-derived mesenchymal stem cells is a promising tissue engineering strategy to promote regeneration of craniofacial bone.

    Purpose: To determine whether cell therapy with ex vivo expanded stem cell populations would be safe and efficacious in the regeneration of large alveolar defects in patients with a history of cleft palate or craniofacial trauma.

    Materials And Methods: Eighteen patients (10 patients with traumatic injury and 8 patients with cleft palate) presenting with missing teeth associated with horizontal alveolar bone deficiencies were included in this randomized controlled clinical trial. Read More

    Lateral ridge augmentation with two different ratios of deproteinized bovine bone and autogenous bone: A 2-year follow-up of a randomized and controlled trial.
    Clin Implant Dent Relat Res 2017 Jun 28. Epub 2017 Jun 28.
    Department of Oral & Maxillofacial Surgery, Aalborg University Hospital, Aalborg, Denmark.
    Background: The optimal ratio of deproteinized bovine bone (DPBB) and autogenous bone (AB) for lateral augmentation is presently unknown.

    Purpose: To evaluate implant treatment outcome and radiological graft changes after lateral ridge augmentation with 2 different mixtures of DPBB and AB, 2 years after functional loading.

    Materials And Methods: Thirteen patients were included in a split mouth, randomized, controlled trial. Read More

    Immediate loading of four interforaminal implants supporting a locator-retained mandibular overdenture in the elderly. Results of a 3-year randomized, controlled, prospective clinical study.
    Clin Implant Dent Relat Res 2017 Jun 27. Epub 2017 Jun 27.
    Department of Dental Medicine and Oral Health, Division of Oral Surgery and Orthodontics, Medical University of Graz, Austria.
    Background: Implant-retained overdentures have become a standard option for the prosthetic treatment of the edentulous mandible in the elderly.

    Purpose: This prospective study aimed to compare immediate and conventional loading of four interforaminal implants supporting a Locator-retained mandibular overdenture in elderly patients regarding implant survival, implant stability, and implant-related complications.

    Material And Methods: The study population comprised 20 completely edentulous patients (11 males) aged 60 years and older with severe mandible resorption. Read More

    Resonance frequency analysis of dental implants placed at the posterior maxilla varying the surface treatment only: A randomized clinical trial.
    Clin Implant Dent Relat Res 2017 Jun 20. Epub 2017 Jun 20.
    Department of Prosthodontics, School of Dentistry, University of São Paulo, São Paulo, Brazil.
    Background: Chemical modifications of the dental implant surface that improve the wettability result in a faster and better osseointegration.

    Purpose: The aim of this randomized clinical trial was to evaluate the implant stability quotient (ISQ) of implants with similar designs, treated with 2 surfaces, sandblasted acid-etched (SAE) and hydrophilic SAE, within the initial 16 weeks of healing.

    Material And Methods: A total of 64 implants (32 SAE-control group and 32 modified SAE-test group) with the same design, length, and diameter (conical and compressive, 4. Read More

    Incidental findings of implant complications on postimplantation CBCTs: A cross-sectional study.
    Clin Implant Dent Relat Res 2017 Jun 20. Epub 2017 Jun 20.
    Faculty of Medicine and Dentistry, University of Alberta, Canada.
    Background: Survival rates of dental implants are reported to be very high and seem to indicate minimal complications related to dental implants.

    Purpose: The aim of this report was to evaluate in a cross-sectional study the prevalence of implant positioning complications as appears in postimplantation Cone-Beam Computerized Tomography (CBCT) in two of the major imaging facilities in Bucharest, Romania.

    Methods: Demographic and implant data was collected from two of the three main CBCT facilities in Bucharest, Romania. Read More

    Biophysical regulation of osteotomy healing: An animal study.
    Clin Implant Dent Relat Res 2017 Aug 13;19(4):590-599. Epub 2017 Jun 13.
    Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford School of Medicine, Stanford, California, 94305.
    Background: Osteotomies have been performed for centuries yet there remains a remarkable lack of consensus on optimal methods for cutting bone. There is universal agreement, however, that preserving cell viability is critical.

    Purpose: To identify mechanobiological parameters influencing bone formation after osteotomy site preparation. Read More

    On stress/strain shielding and the material stiffness paradigm for dental implants.
    Clin Implant Dent Relat Res 2017 Jun 13. Epub 2017 Jun 13.
    Faculty of Mechanical Engineering, Technion, Haifa, 32000, Israel.
    Background: Stress shielding considerations suggest that the dental implant material's compliance should be matched to that of the host bone. However, this belief has not been confirmed from a general perspective, either clinically or numerically.

    Purpose: To characterize the influence of the implant stiffness on its functionality using the failure envelope concept that examines all possible combinations of mechanical load and application angle for selected stress, strain and displacement-based bone failure criteria. Read More

    CAD/CAM-fabricated ceramic implant-supported single crowns made from lithium disilicate: Final results of a 5-year prospective cohort study.
    Clin Implant Dent Relat Res 2017 Jun 13. Epub 2017 Jun 13.
    Department of Prosthetic Dentistry, Center for Dental Medicine, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Germany.
    Background: All-ceramic bilayer systems suffer from technique-sensitivity, resulting in increased technical complication rates. This might be overcome by monolithic reconstructions, facilitating digital workflows.

    Purpose: To evaluate the clinical and patient-reported outcome of CAD/CAM-fabricated implant-supported single crowns (ISCs) made of lithium disilicate (LS2 ) cemented on ceramic implants 5 years after implant installation. Read More

    Histomorphometric and immunohistochemical assessment of RUNX2 and VEGF of Biogran™ and autogenous bone graft in human maxillary sinus bone augmentation: A prospective and randomized study.
    Clin Implant Dent Relat Res 2017 Jun 13. Epub 2017 Jun 13.
    Universidade Estadual Paulista - UNESP, Surgery and Integrated Clinic Department, São Paulo, Brazil.
    Background: Few studies have been conducted to assess new bone formation using Biogran, a bioactive glass, in maxillary sinus bone augmentation through a prospective and randomized evaluation. Moreover, there are no studies that evaluate cellular behavior by immunohistochemical assessment for osteoblastic and vascular activity during bone repair.

    Purpose: The aim of this study is to compare new bone formation and cellular behavior with Biogran alone, a 1:1 combination of Biogran and autogenous bone graft, and autogenous bone graft alone in human maxillary sinuses. Read More

    A prospective randomized controlled trial of two-window versus solo-window technique by lateral sinus floor elevation in atrophic posterior maxilla: Results from a 1-year observational phase.
    Clin Implant Dent Relat Res 2017 Jun 5. Epub 2017 Jun 5.
    Fourth Division, Peking University School and Hospital of Stomatology, Beijing, China.
    Background: Implant failures are more common when multiple missing posterior teeth need lateral sinus floor elevation owing to inadequate tissue maturation after grafting. Effects of lateral window dimensions on vital bone formation have rarely been compared.

    Purpose: To compare endo-sinus bone formation between two- and solo-window techniques to rehabilitate multiple missing posterior teeth that need substantial augmentation. Read More

    Comparison between tapered and cylindrical implants in the posterior regions of the mandible: A prospective, randomized, split-mouth clinical trial focusing on implant stability changes during early healing.
    Clin Implant Dent Relat Res 2017 Aug 29;19(4):733-741. Epub 2017 May 29.
    Department of Restorative Dentistry, School of Dentistry, Federal University of Pelotas, Brazil.
    Background: Companies affirm that tapered implants show adequate initial stability, while their installation in the lower arch is uncommon in clinical practice.

    Purpose: To compare the clinical outcomes of tapered and cylindrical implants and to study their effect on bone site characteristics and peri-implant health during healing.

    Materials And Methods: The implant site dimensions were assessed by linear measurements using CBCT prior to the installation of 40 implants in the posterior mandible (20 tapered and 20 cylindrical). Read More

    Hybrid and fully-etched surface implants in periodontally healthy patients: A comparative retrospective study on marginal bone loss.
    Clin Implant Dent Relat Res 2017 Aug 29;19(4):663-670. Epub 2017 May 29.
    Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy.
    Background: Human studies on implants with the same design but with different surfaces are lacking at the present time.

    Purpose: The aim of this study was to compare the survival rate of and marginal bone loss (MBL) around 2 types of implants with the same design, but with different surfaces: fully "sandblasted and double-etched" (SDE) implants and hybrid (H) implants, with an apical SDE-surface and a coronal machined-surface.

    Materials And Methods: The SDE- and H-surfaces were previously analyzed under SEM and profilometer. Read More

    Effects of uncontrolled periodontitis on marginal bone alterations around implants: A case-control study.
    Clin Implant Dent Relat Res 2017 Aug 29;19(4):654-662. Epub 2017 May 29.
    Department of Oral Implants, School of Stomatology, State Key Laboratory of Military Stomatology, The Fourth Military Medical University, 145 West Changle Road, Xi'an, China.
    Background: The hypothesis of bacterial infection initiating marginal bone loss around dental implant in analogy with natural tooth is still in debate.

    Purpose: The aim of this retrospective study was to investigate the effects of uncontrolled periodontitis on marginal bone alterations around implants compared with the periodontal health group at a mean follow-up of at least 6 years.

    Materials And Methods: Thirty consecutive uncontrolled periodontally compromised patients (PCP) and 30 periodontally healthy patients (PHP), with a total of 96 Straumann implants (PCP = 55, PHP = 41) were matched for age, gender, smoking, and implant characteristics. Read More

    Neurophysiological changes associated with implant-associated augmentation procedures in the lower jaw.
    Clin Implant Dent Relat Res 2017 Aug 29;19(4):725-732. Epub 2017 May 29.
    Department of Oral Surgery, University Medical Centre of the Johannes Gutenberg University of Mainz, Mainz, Germany.
    Background: Neurophysiological changes after oral and maxillofacial surgery remain one of the topics of current research.

    Purpose: This study evaluated if implant placement associated with augmentation procedures increases the possibility of sensory disturbances or result in impaired quality of life during the healing period.

    Material And Methods: Patients who had obtained an implant placement in the lower jaw in combination with augmentation procedures were examined by implementing a comprehensive Quantitative Sensory Testing (QST) protocol for extra- and intraoral use. Read More

    Dimensional alterations following vertical ridge augmentation using collagen membrane and three types of bone grafting materials: A retrospective observational study.
    Clin Implant Dent Relat Res 2017 Aug 29;19(4):742-749. Epub 2017 May 29.
    Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, Republic of Korea.
    Background: Various biomaterials have been introduced for vertical ridge augmentation to replace autogenous block bone grafting.

    Purpose: This retrospective study radiographically evaluated dimensional alterations of the vertically augmented alveolar ridge using collagen membrane and 3 types of materials: autogenous bone block, allogenous bone block, and particulated bone substitute.

    Materials And Methods: The electronic medical records of 32 patients who received vertical ridge augmentation using 3 types of materials were searched: 9 for autogenous bone block, 12 for allogenous bone block, and 11 for particulated bone substitutes. Read More

    Location of implant-retained fixed dentures affects oral health-related quality of life.
    Clin Implant Dent Relat Res 2017 Aug 25;19(4):710-716. Epub 2017 May 25.
    Department of Prosthodontics, Showa University School of Dentistry, Tokyo, Japan.
    Background: The effects of the locations of dental implants on treatment outcomes, as evaluated by oral health-related quality of life (OHRQoL) assessment, remain controversial.

    Purpose: To investigate the association between the locations of dental implants and changes in OHRQoL.

    Materials And Methods: Sixty-eight subjects received implant treatment in the anterior or posterior region and completed the Oral Health Impact Profile (OHIP) questionnaire before and after treatment. Read More

    Anterior single implants with different neck designs: 5 Year results of a randomized clinical trial.
    Clin Implant Dent Relat Res 2017 Aug 23;19(4):717-724. Epub 2017 May 23.
    Department of Oral and Maxillofacial Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
    Background: The design of the implant neck might be significant for preservation of marginal bone.

    Purpose: To compare the 5-year radiographic and clinical outcome of single anterior implants provided with a smooth neck, a rough neck or a scalloped rough neck.

    Materials And Methods: 93 Patients with a missing anterior tooth in the maxilla were included. Read More

    Clinical and radiographic outcomes of immediate and delayed placement of dental implants in molar and premolar regions.
    Clin Implant Dent Relat Res 2017 Aug 18;19(4):703-709. Epub 2017 May 18.
    Department of Oral and Maxillofacial Surgery, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Bucheon, Republic of Korea.
    Purpose: The purpose of this retrospective study was to determine clinical and radiographic outcomes of immediate and delayed placement of dental implants in molar and premolar regions.

    Materials And Methods: Clinical and radiographic records of 116 patients who received implants in molar and premolar regions were included in this study. After implantation, patients were recalled for assessments at 1 month, 3 months, 6 months, 1 year, and every year thereafter. Read More

    Extra oral digital scanning and imaging superimposition for volume analysis of bone remodeling after tooth extraction with and without 2 types of particulate porcine mineral insertion: A randomized controlled trial.
    Clin Implant Dent Relat Res 2017 Aug 16;19(4):750-759. Epub 2017 May 16.
    Department of Surgical, Medical, Molecular and Critical Area Pathology, University of Pisa, Pisa, Italy.
    Background: Incorporation of bone substitute material into the extraction socket could minimize the edentulous ridge volume loss or maximize the bone formation within the healing area.

    Purpose: The aim of the study was to test the effectiveness in maintaining the volumetric contour of fresh extraction sockets grafted with or without 2 types of porcine biomaterials and covered with a resorbable barrier.

    Materials And Methods: In the present multi-center single-blind randomized control trial, 55 patients underwent 1-tooth extraction, were surveyed, and randomly allocated to control- (25 sites, nat-group) or test groups (15 sites grafted with pre-hydrated collagenated cortico-cancellous porcine bone, coll-group, and 15 with cortical porcine bone, cort-group). Read More

    Risk factors for single crowns supported by short (6-mm) implants in the posterior region: A prospective clinical and radiographic study.
    Clin Implant Dent Relat Res 2017 Aug 10;19(4):671-680. Epub 2017 May 10.
    Dental School, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, Brazil.
    Background: The use of short implants is still not a consensus for challenging clinical situations, such as unfavorable crown-to-implant (C/I) ratio.

    Purpose: This prospective study evaluated the rates of prosthetic complications and implant failure, the mean marginal bone loss of 6-mm dental implants with single crowns in posterior regions and the potential risk factors.

    Materials And Methods: Forty-six dental implants, 6-mm long and 4. Read More

    Effects of different loading protocols on the secondary stability and peri-implant bone density of the single implants in the posterior maxilla.
    Clin Implant Dent Relat Res 2017 Aug 10;19(4):624-631. Epub 2017 May 10.
    Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Cukurova University, Adana, Turkey.
    Background: Immediate or early loading of dental implants becomes a clinically feasible concept.

    Purpose: The aim was to evaluate the effects of different loading protocols (immediate, early, and delayed) on secondary stability and peri-implant bone density of single implants in the posterior maxilla.

    Materials And Methods: Thirty-nine implants (Dentium, South-Korea) were placed in 39 patients. Read More

    Does osteoporosis influence the marginal peri-implant bone level in female patients? A cross-sectional study in a matched collective.
    Clin Implant Dent Relat Res 2017 Aug 8;19(4):616-623. Epub 2017 May 8.
    Department for Conservative Dentistry and Periodontology, School of Dentistry, Medical University of Vienna, Vienna, Austria.
    Background/purpose: Osteoporosis, being a homeostatic imbalance, affects the remodeling of bone. Whether this catabolic bone disease influences peri-implant marginal bone remodeling remains unknown so far. The purpose of this study was to evaluate the influence of osteoporosis on peri-implant marginal bone loss (MBL) in postmenopausal women. Read More

    Gene expression in peri-implant crevicular fluid of smokers and nonsmokers. 1. The early phase of osseointegration.
    Clin Implant Dent Relat Res 2017 Aug 3;19(4):681-693. Epub 2017 May 3.
    Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
    Background: Smoking is a risk factor for dental implants. The mechanisms behind the impact of smoking on osseointegration are not fully understood.

    Purpose: To investigate the initial molecular and clinical course of osseointegration of different titanium implants in smokers and nonsmokers. Read More

    Guided bone regeneration with recombinant human bone morphogenetic protein 9 loaded on either deproteinized bovine bone mineral or a collagen barrier membrane.
    Clin Implant Dent Relat Res 2017 Aug 2;19(4):600-607. Epub 2017 May 2.
    Department of Periodontology, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, Florida.
    Background: Recombinant human bone morphogenetic protein 9 (rhBMP9) has been considered the most osteoinductive growth factor of the BMP-family and has much translation potential for guided bone regeneration (GBR) procedures.

    Purpose: The aim of this study was to compare bone formation using rhBMP9 loaded with different carrier systems including deprotenized bovine bone mineral (BioOss, BO) or collagen barrier membranes (BioGide, BG) in a rabbit GBR model.

    Materials And Methods: rhBMP9 was loaded either on BO; named BO/BMP9, or BG; named BG/BMP9 to investigate the better carrier system for rhBMP9. Read More

    Comparison of allografts and xenografts used for alveolar ridge preservation. A clinical and histomorphometric RCT in humans.
    Clin Implant Dent Relat Res 2017 Aug 2;19(4):608-615. Epub 2017 May 2.
    ARDEC Academy, Ariminum Odontologica Srl, Rimini, Italy.
    Background: Several types of bone grafts are used in ridge preservation procedures.

    Purpose: To compare the healing of allografts and xenografts applied for alveolar ridge preservation.

    Materials And Methods: Twenty volunteers in need of extraction of a single-rooted tooth prior to implant installation were randomized into two groups. Read More

    Immediate and delayed loading of two-piece reduced-diameter implants with locator-analog attachments in edentulous mandibles: One-year results from a randomized clinical trial examining clinical outcome and patient expectation.
    Clin Implant Dent Relat Res 2017 Aug 24;19(4):643-653. Epub 2017 Apr 24.
    Department of Prosthodontics, University of Heidelberg, INF 400, Heidelberg, 69120, Germany.
    Background: Prosthetic management of thin alveolar ridges in the edentulous mandibles of elderly patients, especially the time of loading, the number of implants needed, and patient expectations and perception, is a challenge in implant dentistry.

    Purpose: Survival of conventionally and immediately loaded 2-piece reduced-diameter implants in the interforaminal region of the edentulous mandible supporting locator-analog attachments was evaluated. Prosthetic complications and peri-implant hygiene were also studied, and patient expectation and subjective evaluation of the treatment were documented. Read More

    Spectrophotometric analysis of fluorescent zirconia abutments compared to "conventional" zirconia abutments: A within subject controlled clinical trial.
    Clin Implant Dent Relat Res 2017 Aug 24;19(4):760-766. Epub 2017 Apr 24.
    Division of Fixed Prosthodontics and Biomaterials, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland.
    Background: Zirconia abutments are frequently used for implant-supported single crowns. Even though demonstrating esthetic benefits compared to metal abutments, zirconia abutments lead to an increased brightness of the peri-implant mucosa compared to natural teeth and are not ideal from an esthetic point of view.

    Purpose: To test whether or not a fluorescent hybrid zirconia abutment offers superior esthetics compared to a non-fluorescent one-piece zirconia abutment based on spectrophotometric analysis. Read More

    Immediate implant placement and restoration in the anterior maxilla: Tissue dimensional changes after 2-5 year follow up.
    Clin Implant Dent Relat Res 2017 Aug 21;19(4):694-702. Epub 2017 Apr 21.
    School of Dentistry and Oral Health, Griffith University, Gold Coast, Queensland, Australia.
    Background: Immediate implant placement followed by an immediate restoration has proven to be a viable technique in the anterior maxillary region.

    Purpose: This prospective study evaluated the mid-long term (2-5 years) tissue changes around immediately placed and restored implants in the anterior maxilla using flapless surgery and simultaneous hard tissue augmentation.

    Materials And Methods: Thirty AstraTech implants were immediately placed in 30 patients, followed by the delivery of an immediate provisional restoration on the same day. Read More

    Characteristics of intrabony nerve canals in mandibular interforaminal region by using cone-beam computed tomography and a recommendation of safe zone for implant and bone harvesting.
    Clin Implant Dent Relat Res 2017 Jun 3;19(3):530-538. Epub 2017 Feb 3.
    Department of Orthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China.
    Background: Cone-beam computed tomography can accurately show anatomic structure of intrabony nerve canals in mandibular interforaminal region.

    Purpose: The aim was to evaluate the characteristics of intrabony nerve canals in mandibular interforaminal region by using cone-beam computed tomography (CBCT) and determine a safe zone for implant and bone harvesting.

    Materials And Methods: Hemimandibles (824) CBCT images were obtained. Read More

    Immediate implant and rehabilitation based on All-on-4 concept in patients with generalized aggressive periodontitis: A medium-term prospective study.
    Clin Implant Dent Relat Res 2017 Jun 3;19(3):559-571. Epub 2017 Apr 3.
    Department of Oral Implantology, School and Hospital of Stomatology, Peking University, Beijing, People's Republic of China.
    Background: Aggressive periodontitis renders a great challenge to the conventional implant due to the risks of infection and ongoing marginal bone loss (MBL). A study about full-arch immediate implant and restoration in patients with advanced generalized aggressive periodontitis (GAP) was not read, even though the All-on-4 concept has been proven to be predictable for edentulous patients.

    Purpose: This prospective study aimed to evaluate the feasibility and medium-term outcomes of immediate implant and rehabilitation based on the All-on-4 concept in patients with advanced GAP via clinical and radiographic analyses. Read More

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