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    1256 results match your criteria Clinical Implant Dentistry and Related Research [Journal]

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    Bacterial microleakage at the abutment-implant interface, in vitro study.
    Clin Implant Dent Relat Res 2018 Feb 15. Epub 2018 Feb 15.
    Departamento de Microbiología, Universidad de Talca, Talca, Chile.
    Introduction: In implant rehabilitation, a microspace is created at the abutment-implant interface (AII). Previous research has shown that oral microbiome can proliferate in this microspace and affect periimplant tissues, causing inflammation in peri-implant tissues. Preventing microbial leakages through the AII is therefore an important goal in implantology. Read More

    Osteopontin is essential for IL-1β production and apoptosis in peri-implantitis.
    Clin Implant Dent Relat Res 2018 Feb 15. Epub 2018 Feb 15.
    Department of Prosthodontics, The Affiliated Hospital of Qingdao University, Qingdao, China.
    Background And Purpose: Peri-implantitis is caused by a cascade of host and microbial factors leading to an oral inflammatory disease. The inflammation proliferates into supporting tissues surrounding implants and may finally lead to a complete loss of osseointegration. Being a phosphorylated glycoprotein secreted by immunocompetent cells, osteopontin (OPN) is involved in the differentiation of odontoblast-like cells during pulpal healing following tooth transplantation and the secretion of type I collagen in reparative dentin. Read More

    An up to 17-year follow-up retrospective analysis of a minimally invasive, flapless approach: 18 945 implants in 7783 patients.
    Clin Implant Dent Relat Res 2018 Feb 15. Epub 2018 Feb 15.
    University Clinic of Cranio-Maxillofacial and Oral Surgery, Medical University of Vienna, Vienna, Austria.
    Background: This study investigates gender, age, jaw, implant position, loading protocol (immediate vs delayed), smoking, and type of surgery (punch vs flap) as influential factors of implant survival in a large patient collective.

    Purpose: To evaluate the survival rates of implants in patients using a mucoperiosteal punch for flapless implantation in the majority of cases in order to evaluate its medical efficacy and safety.

    Materials And Methods: Between 1994 and 2015 all patients with complete data treated at the Wienerberg Dental Clinic, Vienna, Austria, were included and statistically analyzed in Cox proportional hazard (PH) models. Read More

    The effect of the heights and thicknesses of the remaining root segments on buccal bone resorption in the socket-shield technique: An experimental study in dogs.
    Clin Implant Dent Relat Res 2018 Feb 8. Epub 2018 Feb 8.
    Department of Prosthodontics, State Key Laboratory of Oral Disease, West China College of Stomatology, Sichuan University, Chengdu, China.
    Background: To date only a few studies have been done on the use of the socket-shield technique for preserving the resorption of the buccal bone in aesthetically sensitive sites. Besides, there have been no further studies on the effect of the heights and thicknesses of the remaining root segments on buccal bone resorption when using this method.

    Purpose: The aim of this study was to evaluate the effect of different heights and thicknesses of the remaining root segments on bone resorption in the socket-shield technique. Read More

    Effect of length and location of edentulous area on the accuracy of prosthetic treatment plan incorporation into cone-beam computed tomography scans.
    Clin Implant Dent Relat Res 2018 Feb 5. Epub 2018 Feb 5.
    Division of Restorative Sciences and Prosthodontics, The Ohio State University College of Dentistry, Columbus, Ohio.
    Background: Effects of length and location of the edentulous area on the accuracy of prosthetic treatment plan incorporation into cone-beam computed tomography (CBCT) scans has not been investigated.

    Purpose: To evaluate the effect of length and location of the edentulous area on the accuracy of prosthetic treatment plan incorporation into CBCT scans using different methods.

    Material And Methods: Direct digital scans of a completely dentate master model with removable radiopaque teeth were made using an intraoral scanner, and digital scans of stone duplicates of the master model were made using a laboratory scanner. Read More

    Bone and soft tissue outcomes, risk factors, and complications of implant-supported prostheses: 5-Years RCT with different abutment types and loading protocols.
    Clin Implant Dent Relat Res 2018 Jan 30. Epub 2018 Jan 30.
    Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
    Background: Data on risk factors and complications after long-term implant treatment is limited. The aims were to evaluate the role of various fixation modes and to analyze complications and risks that affect long-term use of implant-supported partial fixed dental prostheses.

    Materials And Methods: Fifty partially edentulous subjects received three Brånemark TiUnite™ implants. Read More

    Quasi-static strength and fractography analysis of two dental implants manufactured by direct metal laser sintering.
    Clin Implant Dent Relat Res 2018 Jan 30. Epub 2018 Jan 30.
    Department of Materials Engineering, Pontificial Catholic University of Rio Grande do Sul, Porto Alegre, Brazil.
    Background: New manufacturing methods was developed to improve the tissues integration with the titanium alloy pieces.

    Objective: The present in vitro study was to assess the resistance and fracture mode after applied a quasi-static compressive force on the two dental implants manufactured by direct metal laser sintering.

    Materials And Methods: Twenty dental implants manufactured by direct metal laser sintering, using titanium alloy (Ti-6Al-4V) granules in two designs (n = 10 per group): Conventional dental implant (group Imp1) two-piece implant design, where the surgical implant and prosthetic abutment are two separate components and, the one-piece implant (group Imp2), where the surgical implant and prosthetic abutment are one integral piece. Read More

    Evaluation of primary stability in modified implants: Analysis by resonance frequency and insertion torque.
    Clin Implant Dent Relat Res 2018 Jan 30. Epub 2018 Jan 30.
    Department of Dental Materials and Prosthodontics, Araraquara Dental School, Unesp - Univ Estadual Paulista, Araraquara, São Paulo, Brazil.
    Background: Changes in the macrogeometry of dental implants are known to influence primary stability and the osseointegration process.

    Purpose: The purpose of the present in vitro study was to evaluate the mechanical behavior of geometric changes in the apex region of dental implants.

    Methods: Thirty-five cylindrical dental implants (Titamax Ti; Neodent) were machined at the apical third to reproduce the experimental groups: without apical cut (Wc), apical bi-split cut, apical tri-split cut, apical quadri-split cut (Qs). Read More

    Preservation and augmentation of molar extraction sites affected by severe bone defect due to advanced periodontitis: A prospective clinical trial.
    Clin Implant Dent Relat Res 2018 Jan 29. Epub 2018 Jan 29.
    Department of Restorative Dentistry, University of Washington, Seattle, Washington, USA.
    Background: Studies of the extracted infected-molar ridge preservation are limited.

    Purpose: To compare alterations of hard and soft tissue in infected-molar sockets receiving ridge preservation compared with natural healing.

    Materials And Methods: Thirty-five infected-molar extraction sites either preserving with Bio-Gide membrane covered the Bio-Oss material or receiving natural healing procedure as controls. Read More

    Longitudinal analysis on the effect of insertion torque on delayed single implants: A 3-year randomized clinical study.
    Clin Implant Dent Relat Res 2018 Jan 23. Epub 2018 Jan 23.
    Unit of Oral Surgery and Implantology, University-Hospital at Geneva, Department of Surgery, School of Dental Medicine, Geneva, Switzerland.
    Background: Implant stability is commonly related to insertion torque. Recently, it has been suggested that higher insertion torque may lead to greater bone resorption.

    Purpose: The aim of the present randomized clinical study was to evaluate the role of different insertion torque values in terms of implant success, marginal bone loss, and facial soft tissues recession. Read More

    Peri-implant conditions and levels of advanced glycation end products among patients with different glycemic control.
    Clin Implant Dent Relat Res 2018 Jan 19. Epub 2018 Jan 19.
    Faculty of Dentistry, Department of Periodontology, Ziauddin University, Karachi, Pakistan.
    Background: A close relationship between poor glycemic control and peri-implant break down has been demonstrated. It is hypothesized that levels of advanced glycation end products (AGEs) in peri-implant sulcular fluid (PISF) are higher with increased glycemic levels in type 2 diabetes mellitus patients.

    Purpose: In the present study, we examined the clinical and radiographic peri-implant parameters and levels of AGEs among different glycemic levels in diabetic patients and assessed whether the levels of AGEs correlate with clinical peri-implant parameters. Read More

    Measurement properties of gingival biotype evaluation methods.
    Clin Implant Dent Relat Res 2018 Jan 19. Epub 2018 Jan 19.
    Department of Prosthodontics and Periodontology, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil.
    Background: There are numerous methods to measure the dimensions of the gingival tissue, but few have compared the effectiveness of one method over another.

    Objective: This study aimed to describe a new method and to estimate the validity of gingival biotype assessment with the aid of computed tomography scanning (CTS).

    Materials And Methods: In each patient different methods of evaluation of the gingival thickness were used: transparency of periodontal probe, transgingival, photography, and a new method of CTS). Read More

    Radiographic analysis of dental implant extensions using bone grafts on dogs.
    Clin Implant Dent Relat Res 2018 Jan 10. Epub 2018 Jan 10.
    Electrical Engineering Faculty, Federal University of Uberlandia, Uberlândia, Minas Gerais, Brazil.
    Background: Despite the wide use of dental implants they can bring inconveniences, as the moment one reaches osseointegration, these can no longer be extended. Therefore, if a problem occurs regarding its positioning, the options open are substitution or burial of the implant. With implant substitution, there exists the risk of local bone loss and/or future loss of the new implant. Read More

    Lateral bone augmentation in narrow posterior mandibles, description of a novel approach, and analysis of results.
    Clin Implant Dent Relat Res 2018 Jan 8. Epub 2018 Jan 8.
    Department of Periodontology and Oral Implantology, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel-Aviv University, Tel-Aviv, Israel.
    Background: Combination of particulate grafts and collagen membranes is widely used for augmentation of bony defects for implant placement. Fixation of the barrier membrane may avoid complications due to unfavorable mechanical properties and poor stability leading to collapse of the augmented area.

    Purpose: To evaluate a new simplified method for resorbable collagen membrane fixation in lateral bone augmentation procedures in narrow posterior mandibles. Read More

    Evaluation of bone stimulation by different designs of microthreaded implants in enhancing osseointegration: An in vivo animal study supported by a numerical analysis.
    Clin Implant Dent Relat Res 2018 Jan 4. Epub 2018 Jan 4.
    Department of Prosthodontics, Rajarajeswari Dental College and Hospital, Bengaluru, Karnataka, India.
    Background: An optimal shape of the thread design of the implants is required for equal distribution of stresses to the surrounding bone matrix and for stimulation and promotion of bone remodeling.

    Purpose: The study was construed with the aim of histomorphometric evaluation of bone stimulation generated by different microthread designed implants in enhancing osseointegration, and to assess the pattern of stress dissipation through a two-dimensional finite element analysis.

    Material And Methods: Computer Aided Designing of two type of microthreads, one V-shaped and the other Power-shaped microthreaded dental implants with only microthreads all along body of the implant from the neck to the apex was made and 30 implant prototypes were milled. Read More

    Hard tissue volume stability of guided bone regeneration during the healing stage in the anterior maxilla: A clinical and radiographic study.
    Clin Implant Dent Relat Res 2018 Feb 28;20(1):68-75. Epub 2017 Dec 28.
    Department of Oral Implantology, Peking University School and Hospital of Stomatology, Beijing, P.R. China.
    Background: Guided bone regeneration (GBR) is currently the most widely used technique to reconstruct localized peri-implant bone defects.

    Objectives: To evaluate hard tissue volume stability during the healing stage of GBR with particulate bone graft and resorbable collagen membrane.

    Materials And Methods: Twenty-eight patients who were missing a single maxillary incisor and required implant placement combined with GBR were randomly assigned to 2 groups: submerged (n = 14) and transmucosal (n = 14) healing groups. Read More

    Osseointegration and foreign body reaction: Titanium implants activate the immune system and suppress bone resorption during the first 4 weeks after implantation.
    Clin Implant Dent Relat Res 2018 Feb 28;20(1):82-91. Epub 2017 Dec 28.
    Department of Prosthodontics, Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden.
    Background: Osseointegration mechanisms are still not entirely understood.

    Purpose: The present pilot study aims at demonstrating the involvement of the immune system in the process of osseointegration around titanium implants, comparing bone healing in the presence and absence of a titanium implant.

    Materials And Methods: Fifteen New Zealand White rabbits had one osteotomy performed at each of the distal femurs; on one side, no implant was placed (sham) and on the other side a titanium implant was introduced. Read More

    Relationship of implant stability and bone density derived from computerized tomography images.
    Clin Implant Dent Relat Res 2018 Feb 26;20(1):50-57. Epub 2017 Dec 26.
    Unit of Periodontology, Department of Oral Health Sciences, University of Leuven, Leuven, Belgium.
    Background And Purpose: Implant stability is one of the most important factors influencing osseointegration. Using stereolithographical guides for maximizing precision, this study aimed at investigating the relationship between implant stability and bone density derived from computerized tomography analysis.

    Materials And Methods: One hundred ninety-five implants were placed in 48 patients using digitally designed stereolithographical surgical guides. Read More

    Identifying a combined biomarker for bisphosphonate-related osteonecrosis of the jaw.
    Clin Implant Dent Relat Res 2017 Dec 20. Epub 2017 Dec 20.
    Department of Oral and Maxillofacial Surgery, College of Dentistry, Yonsei University, Seoul, Republic of Korea.
    Background: For this study, the aim was to identify combined biomarkers associated with bisphosphonate-related osteonecrosis of the jaw (BRONJ).

    Materials And Methods: Microarray data for GSE7116 were downloaded from the Gene Expression Omnibus database, which contains 26 samples, including without ONJ, and 5 healthy volunteers. The combined biomarkers were identified using principal component analysis, and the pathway enrichment analyses were performed using the DAVID online tool. Read More

    Clinical and radiographic peri-implant parameters and proinflammatory cytokine levels among cigarette smokers, smokeless tobacco users, and nontobacco users.
    Clin Implant Dent Relat Res 2018 Feb 15;20(1):76-81. Epub 2017 Dec 15.
    Department of General Dentistry, Eastman Institute for Oral Health, University of Rochester, Rochester, New York.
    Background: It is postulated that clinical and radiographic peri-implant parameters are worse and levels of interleukin (IL)-1β and matrix metalloproteinase (MMP)-9 in the peri-implant sulcular fluid (PISF) are higher in cigarette-smokers (CS) and smokeless-tobacco users (STU) compared with nontobacco user (NTU).

    Purpose: The present study aimed to compare clinical and radiographic peri-implant inflammatory parameters and levels of IL-1β and MMP-9 levels among CS, STU, and NTU.

    Materials And Methods: Forty-five CS (Group-1), 42 STU (Group-2), and 44 NTU (Group-3) were included. Read More

    Long-term evaluation of quality of life and satisfaction between implant bar overdentures and conventional complete dentures: A 23 years retrospective study.
    Clin Implant Dent Relat Res 2017 Dec 14. Epub 2017 Dec 14.
    Department of Oral Surgery, University of Murcia, Murcia, Spain.
    Background: Dental implants have been used in edentulous jaws to improve the retention and stability of complete dentures. Attachment to the implants improves stability and function of the prostheses and increases patient satisfaction.

    Purpose: The aim of this study was to evaluate quality of life and satisfaction between patients with implant overdentures and complete dentures for more than 20 years. Read More

    A prospective, multi-center study assessing early loading with short implants in posterior regions. A 3-year post-loading follow-up study.
    Clin Implant Dent Relat Res 2018 Feb 8;20(1):34-42. Epub 2017 Dec 8.
    Department of Periodontology, Peking University School and Hospital of Stomatology, Beijing, China.
    Background: Few prospective studies about early loading of short implant have been available and very little evidence exists on the outcomes longer than 3 years.

    Purpose: To assess clinical and radiographic outcomes of 6 mm-short implants placed in the posterior maxilla and mandible applying an early loading protocol.

    Materials And Methods: Ninety-five short implants (6 mm-short, Ø 4 mm) were placed in 45 subjects at 3 study sites, 2 or 3 implants per subject, using a one-stage surgical procedure and loaded with a screw-retained splinted fixed prosthesis 6 weeks later. Read More

    Surface characterization of titanium implant healing abutments before and after placement.
    Clin Implant Dent Relat Res 2017 Dec 6. Epub 2017 Dec 6.
    Deparment of Bioengineering, The University of Texas at Dallas, Richardson, Texas, USA.
    Background: Implant healing abutments (IHA) have a vital role in soft tissue healing after implant placement. Although there is thorough investigation on the implant surface, little is known about the effects potentially damaging oral conditions impose on healing abutments.

    Purpose: To characterize the surface of titanium healing abutments before and after clinical placement to understand the effects of the oral environment and time on the device surface. Read More

    Micromotion analysis of different implant configuration, bone density, and crestal cortical bone thickness in immediately loaded mandibular full-arch implant restorations: A nonlinear finite element study.
    Clin Implant Dent Relat Res 2018 Feb 6;20(1):43-49. Epub 2017 Dec 6.
    Department of Oral and Maxillofacial Surgery, Nara Medical University, Kashihara, Nara, Japan.
    Background: Excessive micromotion may cause failure of osseointegration between the implant and bone.

    Purpose: This study investigated the effects of implant configuration, bone density, and crestal cortical bone thickness on micromotion in immediately loaded mandibular full-arch implant restorations.

    Materials And Methods: A finite element model of the edentulous mandible was constructed. Read More

    Factors influencing the fracture of dental implants.
    Clin Implant Dent Relat Res 2018 Feb 6;20(1):58-67. Epub 2017 Dec 6.
    Department of Prosthodontics, Sahlgrenska Academy, Göteborg University, Göteborg, Sweden.
    Background: Implant fractures are rare but offer a challenging clinical situation.

    Purpose: To determine the prevalence of implant fracture and the possible risk factors predisposing an implant to a higher fracture risk.

    Materials And Methods: This retrospective study is based on 2670 patients consecutively treated with implant-supported prostheses. Read More

    A retrospective study on clinical and radiological outcomes of oral implants in patients followed up for a minimum of 20 years.
    Clin Implant Dent Relat Res 2017 Dec 6. Epub 2017 Dec 6.
    Department of Prosthodontics, Sahlgrenska Academy, Göteborg University, Göteborg, Sweden.
    Background: Very long-term follow-up of oral implants is seldom reported in the literature.

    Purpose: To assess oral implant failure rates and marginal bone loss (MBL) of patients followed up for a minimum of 20 years.

    Materials And Methods: Implants placed in patients followed up for 20+ years were included. Read More

    Intraoral versus extraoral cementation of implant-supported single crowns: Clinical, biomarker, and microbiological comparisons.
    Clin Implant Dent Relat Res 2017 Dec 6. Epub 2017 Dec 6.
    Department of Periodontology, School of Dentistry, Ege University, İzmir, Turkey.
    Objectives: Implant supported single metal-ceramic crowns cemented either extraorally or intraorally were comparatively evaluated by clinical, radiologic, biomarker, and microbiological parameters.

    Materials And Methods: Twelve patients with bilateral single tooth gap in the maxillary posterior region received two locking-taper implants; 4.5 mm width, 8 mm length. Read More

    The applications of regenerative medicine in sinus lift procedures: A systematic review.
    Clin Implant Dent Relat Res 2017 Dec 3. Epub 2017 Dec 3.
    Department of Oral Surgery and Periodontology, Faculty of Dental Medicine, University of Porto, Porto, Portugal.
    Background: Findings in regenerative medicine applied to the sinus lift procedures.

    Purpose: Evaluate the effectiveness of regenerative medicine in sinus lift.

    Materials And Methods: An extensive search for manuscripts were performed by using different combinations of keywords and MeSH terms (Pub-med; Embase; Scopus; Web of Science Core Collection; Medline; Current Contents Connect; Derwent Innovations Index; Scielo Citation Index; Cochrane library). Read More

    Relationship between implant stability measurements obtained by insertion torque and resonance frequency analysis: A systematic review.
    Clin Implant Dent Relat Res 2018 Feb 1;20(1):26-33. Epub 2017 Dec 1.
    Department of Periodontology, Federal University of Minas Gerais, Belo Horizonte, Brazil.
    Background: The primary stability of dental implants can be evaluated by insertion torque (IT) and resonance frequency analysis (RFA).

    Objective: Assess the supposed relationship between the IT and RFA.

    Materials And Methods: A systematic review was performed based on the PRISMA. Read More

    Age-related new bone formation following the use of cancellous bone-block allografts for reconstruction of atrophic alveolar ridges.
    Clin Implant Dent Relat Res 2018 Feb 1;20(1):4-8. Epub 2017 Dec 1.
    Department of Oral & Maxillofacial Surgery, School of Dental Medicine, Tel Aviv University, Tel-Aviv, Israel.
    Background: An age-related decrease in the number of osteogenic progenitor cells may compromise bone augmentation.

    Purpose: Histomorphometrical assessment of age-related new bone formation, following atrophic alveolar ridge reconstruction, using cancellous bone-block allografts.

    Material And Methods: Ninety-three consecutive patients (58 females and 35 males) were referred for implant-supported restoration of 122 severe atrophic alveolar ridges. Read More

    Computer guided sinus floor elevation through lateral window approach with simultaneous implant placement.
    Clin Implant Dent Relat Res 2017 Dec 1. Epub 2017 Dec 1.
    Department of Oral and Maxillofacial Surgery, Faculty of Oral and Dental Medicine, Cairo University, Cairo, Egypt.
    Background: The introduction of CAD/CAM technology in implant dentistry has marked a new era, allowing various procedures to be carried out with a level of great precision and accuracy.

    Purpose: The aim of the present study is to compare the efficacy of a CAD/CAM generated surgical cutting guide in the reduction of incidence of membrane perforation during maxillary sinus floor elevation in relation to the standard lateral window approach technique.

    Materials And Methods: Twenty cases of maxillary sinus elevation were randomly divided into 2 groups. Read More

    Short dental implants as compared to maxillary sinus augmentation procedure for the rehabilitation of edentulous posterior maxilla: Three-year results of a randomized clinical study.
    Clin Implant Dent Relat Res 2018 Feb 28;20(1):9-20. Epub 2017 Nov 28.
    Department of Biomedical, Surgical, and Dental Sciences, Università degli Studi di Milano, Milan, Italy.
    Background: Several treatment options exist for the implant-supported rehabilitation of edentulous posterior maxilla.

    Purpose: To compare maxillary sinus floor augmentation associated to standard length implants, with direct placement of implants of reduced length in the available residual bone.

    Materials And Methods: Patients with edentulous posterior maxilla and a residual height of 4-7 mm were randomly allocated to the test (short implants [SIs], 6. Read More

    Comparison of peri-implant clinical and radiographic status around short (6 mm in length) dental implants placed in cigarette-smokers and never-smokers: Six-year follow-up results.
    Clin Implant Dent Relat Res 2018 Feb 27;20(1):21-25. Epub 2017 Nov 27.
    Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia.
    Background: It is hypothesized that peri-implant clinical and radiographic inflammatory parameters (probing depth [PD], bleeding on probing [BOP] and plaque index [PI]; and radiographic (crestal bone loss [CBL]) are worse among cigarette-smokers (CS) compared with never-smokers (NS) with short implants.

    Purpose: The present 6-year follow-up retrospective study compared the peri-implant clinical and radiographic parameters in CS and NS with short dental implants (6 mm in length).

    Materials And Methods: Fifty-six male individuals were included. Read More

    Histological evaluations and inflammatory responses of different dental implant abutment materials: A human histology pilot study.
    Clin Implant Dent Relat Res 2017 Nov 27. Epub 2017 Nov 27.
    Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand.
    Background: Improvements of soft tissue to the abutment surface results in more stable peri-implant conditions, however, few human histological studies have compared soft tissue responses around different abutment materials.

    Purpose: To describe the peri-implant tissue around 3 abutment materials; titanium, zirconia, and gold alloy, over an 8-week healing period.

    Materials And Methods: Fifteen edentulous sites were treated with implants. Read More

    A retrospective evaluation of 128 socket-shield cases in the esthetic zone and posterior sites: Partial extraction therapy with up to 4 years follow-up.
    Clin Implant Dent Relat Res 2017 Nov 26. Epub 2017 Nov 26.
    Department of Periodontics and Oral Medicine, School of Dentistry, Faculty of Health Sciences, University of Pretoria, South Africa.
    Objectives: Tooth loss results in an inevitable alveolar ridge reduction. This has established a cautionary approach to extract, wait, augment, and insert the implant, in lieu of immediate placement. However, saving the tooth or part of it whenever possible is more conservative and supports the vital periodontal tissue buccofacial to an implant. Read More

    Sinus augmentation and concomitant implant placement in low bone-density sites. A retrospective study on an undersized drilling protocol and primary stability.
    Clin Implant Dent Relat Res 2017 Nov 22. Epub 2017 Nov 22.
    Milan, Italy.
    Background: Recently, a torque-measuring micromotor has been shown to provide a reliable, quantitative intraoperative evaluation of bone density and implant primary stability. This may be particularly useful for determining bone quality of residual bone and consequently the most appropriate site preparation in the posterior maxilla, where bone often is of low density and quality.

    Purpose: This work aimed to assess the medium-term success of implants placed during 1-stage sinus augmentations using an undersized drilling protocol. Read More

    Peri-implant parameters and C-reactive protein levels among patients with different obesity levels.
    Clin Implant Dent Relat Res 2017 Nov 16. Epub 2017 Nov 16.
    Department of General Dentistry, Eastman Institute for Oral Health, University of Rochester, Rochester, New York.
    Background: It is hypothesized that peri-implant conditions are worse with increasing severity of obesity, because systemic low-grade inflammatory marker (C-reactive protein [CRP]) is higher in severe form of obese individuals.

    Purpose: The aim of the cross-sectional retrospective study was to compare clinical and radiographic peri-implant inflammatory parameters in patients with different levels of obesity and correlate these parameters with CRP levels.

    Materials And Methods: Eighty-four patients who participated in this study were divided into 4 groups: class I obese (group 1), class II obese (group 2), class III obese (group 3), and nonobese individuals (group 4) were included. Read More

    Assessment of interleukin-1β, interleukin-6, and tumor necrosis factor-Α levels in the peri-implant sulcular fluid among waterpipe (narghile) smokers and never-smokers with peri-implantitis.
    Clin Implant Dent Relat Res 2017 Nov 16. Epub 2017 Nov 16.
    Department of General Dentistry, Eastman Institute for Oral Health, University of Rochester, Rochester, New York.
    Background: It is hypothesized that levels of interleukin (IL)-1β, IL-6 and tumor necrosis factor (TNF)-α are significantly higher in the peri-implant sulcular fluid (PISF) of waterpipe-smokers (WS) compared with never-smokers with peri-implantitis.

    Purpose: The aim of the present convenience sample case-control study was to compare the levels of IL-6, IL-1β, and TNF-α in the PISF of WS and never-smokers with peri-implantitis.

    Materials And Methods: Demographic data was collected using a questionnaire. Read More

    Piezoelectric versus conventional implant site preparation: A systematic review and meta-analysis.
    Clin Implant Dent Relat Res 2017 Nov 16. Epub 2017 Nov 16.
    Department of Oral Sciences, Faculty of Dentistry, Oral Implantology Research Group, Sir John Walsh Research Institute, University of Otago, Dunedin, New Zealand.
    Background: The use of a piezoelectric device (PED) for implant site preparation (ISP) has been introduced to overcome the limitations of using conventional drills (CDs). With little and inconsistent information in the literature regarding their efficiency for preparing implant osteotomies, the objective of this systematic review was to compare the use of CDs to PEDs for ISP with regard to implant stability values, marginal bone level changes, operating time, and dental implant failure rate.

    Methods: The systematic review was prepared according to the guidelines of Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). Read More

    Lnc-NTF3-5 promotes osteogenic differentiation of maxillary sinus membrane stem cells via sponging miR-93-3p.
    Clin Implant Dent Relat Res 2017 Nov 6. Epub 2017 Nov 6.
    Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
    Background: The function and the mechanism of long non-coding RNAs (lncRNAs) on the osteogenic differentiation of maxillary sinus membrane stem cells (MSMSCs) remain largely unknown.

    Materials And Methods: The expression of lnc-NTF3-5 and Runt-related transcription factor 2 (RUNX2), Osterix (OSX), and Alkaline Phosphatase (ALP) was examined by quantitative real-time PCR (qRT-PCR) in MSMSCs during the process osteogenic differentiation. Then the function of lnc-NTF3-5 was evaluated by loss- and gain-of-function techniques, as well as qRT-PCR, western blot, and Alizarin Red staining. Read More

    Bioactive treatments in bone grafts for implant-based rehabilitation: Systematic review and meta-analysis.
    Clin Implant Dent Relat Res 2017 Nov 6. Epub 2017 Nov 6.
    Department of Restorative Dentistry, Graduate Program in Dentistry, Federal University of Pelotas, Pelotas, RS, Brazil.
    Background: The use of bioactive proteins, such as rhBMP-2, may improve bone regeneration in oral and maxillofacial surgery.

    Purpose: Analyze the effect of using bioactive proteins for bone regeneration in implant-based rehabilitation.

    Materials And Methods: Seven databases were screened. Read More

    Immediately restored full arch-fixed prosthesis on implants placed in both healed and fresh extraction sockets after computer-planned flapless guided surgery. A 3-year follow-up study.
    Clin Implant Dent Relat Res 2017 Dec 29;19(6):997-1008. Epub 2017 Oct 29.
    Oral Surgery Department, Barts and The London School of Medicine and Dentistry, London, UK.
    Background: The treatment of patients by the use of immediate implant placement in post-extractive site is a challenging procedure.

    Purpose: A 3-year clinical and radiological study of post-extractive implants placed using flapless guided surgery and immediately functioning.

    Materials And Methods: Thirty-two patients (23 females and 9 males), aged between 44 and 73 years (a mean age of 59. Read More

    Bar versus ball attachments for implant-supported overdentures in complete edentulism: A systematic review.
    Clin Implant Dent Relat Res 2017 Oct 25. Epub 2017 Oct 25.
    Department of Obstetrics and Gynaecology, Faculty of Medicine, Ain Shams University, Cairo, Egypt.
    Background: Implant-supported overdenture is one of the most predictable treatment options used in complete edentulism. However, differences have been reported between bar and ball attachments used to retain overdentures in terms of patient satisfaction and prosthesis retention.

    Purpose: The purpose of this study is to compare the effectiveness of bar and ball attachments for conventionally loaded implant-supported overdentures in completely edentulous patients to improve patient satisfaction and prosthesis retention. Read More

    CyPA and Emmprin play a role in peri-implantitis.
    Clin Implant Dent Relat Res 2017 Oct 22. Epub 2017 Oct 22.
    Department of Prosthodontics, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, PR China.
    Background: Cyclophilin A (CyPA) and Emmprin play important roles in peri-implantitis. However, their roles in the diagnosis and treatment of the disease are still unclear.

    Purpose: The aim of this split-mouth animal study was to describe variable trends of biomarkers during the progression of peri-implantitis and to define relationships among CyPA, Emmprin, and peri-implantitis. Read More

    Radiographic and clinical outcomes of rooted, platform-switched, microthreaded implants with a sandblasted, large-grid, and acid-etched surface: A 5-year prospective study.
    Clin Implant Dent Relat Res 2017 Dec 20;19(6):1074-1081. Epub 2017 Oct 20.
    Department of Stomatology, Key Lab of Oral Clinical Medicine, the Affiliated Hospital of Qingdao University, College of Stomatology, Qingdao University, Qingdao, China.
    Background: There is no data available on the long-term outcomes of a rooted, platform-switched, microthreaded implant with a sandblasted, large-grid, and acid-etched surface.

    Purpose: This prospective, longitudinal study evaluated the clinical and radiographic outcomes of rooted, platform-switched, microthreaded and sandblasted, large-grid, and acid-etched (SLA) surface implants for 5 years.

    Materials And Methods: Sixty implants were placed in sixty patients with partially edentulous maxillae or mandibles. Read More

    A prospective randomized controlled trial of the two-window technique without membrane versus the solo-window technique with membrane over the osteotomy window for maxillary sinus augmentation.
    Clin Implant Dent Relat Res 2017 Dec 16;19(6):1099-1105. Epub 2017 Oct 16.
    4th Division, Peking University School and Hospital of Stomatology, Beijing, China.
    Background: Maturation of the grafted volume after lateral sinus elevation is crucial for the long-term survival of dental implants.

    Purpose: To compare endo-sinus histomorphometric bone formation between the solo- and two-window maxillary sinus augmentation techniques with or without membrane coverage for the rehabilitation of multiple missing posterior teeth.

    Materials And Methods: Patients with severely atrophic posterior maxillae were randomized to receive lateral sinus floor elevation via the solo-window technique with membrane coverage (Control Group) or the two-window technique without coverage (Test Group). Read More

    A prospective, split-mouth study comparing tilted implants with angulated connection versus conventional implants with angulated abutment.
    Clin Implant Dent Relat Res 2017 Dec 16;19(6):989-996. Epub 2017 Oct 16.
    Department of Periodontology, Oral Implantology, Removable and Implant Prosthetics, Faculty of Medicine and Health Sciences, Ghent University, Gent, Belgium.
    Background: An angulation of the implant connection could overcome the problems related to angulated abutments.

    Purpose: This study compares conventional implants with angulated abutment to tilted implants with an angulated connection.

    Materials And Methods: Twenty patients were treated in the edentulous mandible. Read More

    Morphometric and histologic characterization of alveolar bone from hypertensive patients.
    Clin Implant Dent Relat Res 2017 Dec 16;19(6):1106-1113. Epub 2017 Oct 16.
    Division of Anatomy, Department of Basic Science, Araçatuba Dental School, UNESP-Universidade Estadual Paulista "Júlio de Mesquita Filho", Araçatuba, São Paulo, Brazil.
    Background: Hypertension is considered a risk factor in implant dentistry but the underlying reasons remain unclear. It may be that hypertension has a negative impact on the local bone quality.

    Purpose: Here we evaluated the structural and histological parameters of bone collected from hypertensive patients treated by antagonists of the renin-angiotensin system, and of bone collected from normotensive patients. Read More

    The influence of crown-to-implant ratio on marginal bone levels around splinted short dental implants: A radiological and clincial short term analysis.
    Clin Implant Dent Relat Res 2017 Dec 12;19(6):1090-1098. Epub 2017 Oct 12.
    Oral Surgeon, Academy of Oral Implantology, Lazarettgasse 19/DG, 1090 Vienna, Austria.
    Background: The amount of marginal bone resorption around dental implants is considered to have a significant impact on implant stability as well as implant survival rates.

    Purpose: The aim of this prospective study was to investigate the influence of prosthetic as well as patient specific factors on marginal bone loss around short dental implants.

    Materials And Methods: Seventy-six implants, which supported splinted crowns were included for investigation. Read More

    Continuous eruption of maxillary teeth and changes in clinical crown length: A 10-year longitudinal study in adult women.
    Clin Implant Dent Relat Res 2017 Dec 5;19(6):1082-1089. Epub 2017 Oct 5.
    Department of Orthodontics, University of Geneva, Geneva, Switzerland.
    Background: Continuous physiologic eruption of teeth may become a main aesthetic issue for implants inserted in the maxillary anterior region.

    Purpose: To study maxillary tooth vertical changes during a 10 years period by 3-dimensional superimposition of digital dental casts.

    Material And Methods: Alginate impressions were taken at both baseline and at the 10-year follow-up in a sample of 24 adult Swedish women (average age of 48 years at T0). Read More

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