1,623 results match your criteria 10-mm implants

Effects on Ridge Dimensions, Bone Density, and Implant Primary Stability with Osseodensification Approach in Implant Osteotomy Preparation.

Int J Oral Maxillofac Implants 2021 May-Jun;36(3):474-484

Purpose: To compare the amount of bone expansion, bone density change, and implant primary stability with an osseodensification technique to a conventional drilling protocol.

Materials And Methods: Twenty-four bovine rib segments (20 × 25 × 4 mm) with a 1-mm outer layer of cortical bone were randomly divided into two groups: an osseodensification group and a conventional drilling group. Each bone sample received one 4. Read More

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[The feasibility of zygomatic implant quad approach in patients with tooth agenesis: a radiographic analysis].

Shanghai Kou Qiang Yi Xue 2021 Apr;30(2):196-200

Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology. Shanghai 200011, China.

Purpose: The aim of this study was to analyze the feasibility of zygomatic implant quad approach in patients with tooth agenesis.

Methods: Based on the data from cone-beam CT (CBCT), twenty one patients with tooth agenesis who were planned to receive zygomatic implant quad approach were enrolled. The radiographic bone-to-implant contact (rBIC) of each zygomatic implant placed virtually in patients' zygomatic segment was measured. Read More

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The survival rates and risk factors of implants in the early stage: a retrospective study.

BMC Oral Health 2021 Jun 9;21(1):293. Epub 2021 Jun 9.

Department of Periodontology and Oral Implantology, Stomatological Hospital, Southern Medical University, Guangzhou, 510280, China.

Background: Few large-sample studies in China have focused on the early survival of dental implants. The present study aimed to report the early survival rates of implants and determine the related influencing factors.

Methods: All patients receiving dental implants at our institution between 2006 and 2017 were included. Read More

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[Pre-clinical evaluation study on a new Chinese-made surgical biopatch for atrial septum].

Zhonghua Wai Ke Za Zhi 2021 Jun;59(6):513-519

Animal Experimental Center, Beijing Key Laboratory of Pre-clinical Research and Evaluation for Cardiovascular Implant Materials, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, National Center for Cardiovascular Diseases, Beijing 102300, China.

To evaluate the safety and effectiveness of a new Chinese-made surgical biopatch for atrial septum under the establishment of atrial septal defect animal model in miniature pigs. From June 2018 to April 2019, 26 pigs were divided into experimental group (15 pigs) and the control group (11 pigs). Animal models of atrial septal defect were established by traditional surgical methods. Read More

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Ultra-short versus standard-length dental implants in conjunction with osteotome-mediated sinus floor elevation: A randomized controlled clinical trial.

Clin Implant Dent Relat Res 2021 Jun 8. Epub 2021 Jun 8.

Faculty of Dentistry, Department of Oral Medicine and Periodontology, Cairo University, Cairo, Egypt.

Background: The ability to restore missing teeth with dental implants is dictated by the available bone and by the presence of anatomical structures. The potential to insert ultrashort implants avoids additional surgical procedures and its inherent complications. The last European Association of Dental Implantologists consensus in 2016 defined ultrashort implants and standard-length dental implants as <6 and >8 mm, respectively. Read More

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Biomechanical evaluation of stress distributions at the implant-abutment complex and peri-implant bone around mandibular dental implants with different neck geometries and inclinations.

Proc Inst Mech Eng H 2021 Jun 7:9544119211022985. Epub 2021 Jun 7.

Department of Oral and Maxillofacial Surgery, School of Dentistry, Istanbul University, Istanbul, Turkey.

This study aimed to investigate the effects of the different dental implant neck designs, diameters, and inclinations, on the stress distributions at the mandibular crestal bone and implant-abutment complex, using three-dimensional (3D) finite element stress analysis (FEA) method. Finite element models of three-unit fixed partial dentures supported with two same length implants (10 mm), placed on the second premolar and second molar regions, were designed. Eight different models were designed according to the implants' neck designs (platform switching/traditional), diameters (4. Read More

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Anatomic fit of precontoured extra-articular distal humeral locking plates: a cadaveric study.

Clin Shoulder Elb 2021 Jun 27;24(2):66-71. Epub 2021 May 27.

Department of Orthopedic Surgery, Arthroscopy and Joint Research Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.

Background: Extra-articular distal humerus locking plates (EADHPs) are precontoured anatomical plates widely used to repair distal humeral extra-articular diaphyseal fractures. However, EADHPs frequently cause distal protrusion and resulting skin discomfort. The purpose of this study was to predict the occurrence of anatomic fit mismatch. Read More

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Short Dental Implants (≤8.5 mm) versus Standard Dental Implants (≥10 mm): A One-Year Post-Loading Prospective Observational Study.

Int J Environ Res Public Health 2021 May 26;18(11). Epub 2021 May 26.

Department of General Dentistry and Implants, Faculty of Medicine and Dentistry, University of Murcia, 30008 Murcia, Spain.

Background: Recent data have shown that short dental implants can be the preferred treatment in most of cases of posterior atrophic alveolar ridges, offering higher survival and lower complication rates than long implants. The survival rates, stability, and marginal bone level changes were compared between short implants (7 and 8.5 mm) and standard-length implants (≥10 mm). Read More

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Nonanatomic and Suture-Based Coracoclavicular Joint Stabilization Techniques Provide Adequate Stability at a Lower Cost of Implants in Biomechanical Studies When Compared With Anatomic Techniques: A Systematic Review and Meta-Analysis.

Arthrosc Sports Med Rehabil 2021 Apr 24;3(2):e573-e591. Epub 2021 Feb 24.

NorthShore University Health System, Evanston; University of Chicago Pritzker School of Medicine, Chicago; and Northwestern University School of Engineering. Evanston, Illinois, U.S.A.

Purpose: To compare the stability and cost of the used implants in nonanatomic and anatomic acromioclavicular joint repair/reconstruction (ACCR) techniques tested in cadaveric shoulder biomechanical studies during the last decade.

Methods: A systematic review and meta-analysis were performed following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines and prospectively registered in PROSPERO. Two independent reviewers searched PubMed, Embase, and Virtual Health Library databases. Read More

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Comparative evaluation of peri-implant stress distribution in implant protected occlusion and cuspally loaded occlusion on a 3 unit implant supported fixed partial denture: A 3D finite element analysis study.

J Adv Prosthodont 2021 Apr 27;13(2):79-88. Epub 2021 Apr 27.

Department of Prosthodontics, Government Dental College, Ahmedabad, India.

Purpose: To assess peri-implant stress distribution using finite element analysis in implant supported fixed partial denture with occlusal schemes of cuspally loaded occlusion and implant protected occlusion.

Materials And Methods: A 3-D finite element model of mandible with D2 bone with partially edentulism with unilateral distal extension was made. Two Ti alloy identical implants with 4. Read More

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PRF versus xenograft in sinus augmentation in case of HA-coating implant placement: A 36-months retrospective study.

Adv Clin Exp Med 2021 May 13. Epub 2021 May 13.

Department of Oral Surgery, Wroclaw Medical University, Poland.

Background: Sinus lift with a simultaneous implant placement in the residual maxilla is a common technique used worldwide. Nevertheless, choosing an ideal grafting material remains an object of dispute. The use of an autologous blood-derived graft, known as platelet rich fibrin (PRF), has not yet been recognized to be as good as xenografts and alloplastic materials. Read More

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MRI-Compatible and Conformal Electrocorticography Grids for Translational Research.

Adv Sci (Weinh) 2021 05 8;8(9):2003761. Epub 2021 Mar 8.

Bertarelli Foundation Chair in Neuroprosthetic Technology Laboratory for Soft Bioelectronic Interfaces Institute of Microengineering Institute of Bioengineering Center for Neuroprosthetics Ecole Polytechnique Fédérale de Lausanne (EPFL) Geneva 1202 Switzerland.

Intraoperative electrocorticography (ECoG) captures neural information from the surface of the cerebral cortex during surgeries such as resections for intractable epilepsy and tumors. Current clinical ECoG grids come in evenly spaced, millimeter-sized electrodes embedded in silicone rubber. Their mechanical rigidity and fixed electrode spatial resolution are common shortcomings reported by the surgical teams. Read More

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Implant Prosthodontic Rehabilitation after Surgical Treatment for an Oropharyngeal Malignant Tumour Using Tantalum Dental Implants.

Case Rep Dent 2021 22;2021:5585181. Epub 2021 Apr 22.

Department of Oral Surgery, School of Dental Medicine, University of Zagreb, Zagreb, Croatia.

Oropharyngeal cancer (OPC) represents a significant portion of head and neck cancers. In most cases, it is localised in the soft palate, lingual and palatine tonsils, base of the tongue, and the surrounding tissues. Alcohol and tobacco exposure are well-known evidence-based risk factors for developing OPC; however, over the last decade, there has been a rapid increase in OPC linked to human papillomavirus (HPV). Read More

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Effect of Arch Size and Implant Angulations on the Accuracy of Implant Impressions.

Eur J Prosthodont Restor Dent 2021 Apr 26. Epub 2021 Apr 26.

Assistant Professor, Department of Prosthodontics, Faculty of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.

Purpose: To evaluate the effects of arch size and implant angulation on the accuracy of implant impressions.

Materials And Methods: Four different resin models (small and large) of edentulous maxilla were fabricated and four implants were inserted (Blossom®, ø 4.75 × 10 mm) in each model. Read More

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Failure Risk of Short Dental Implants Under Immediate Loading: A Meta-Analysis.

J Prosthodont 2021 May 1. Epub 2021 May 1.

Institute of Stomatology, First Medical Center, Chinese PLA General Hospital, Beijing, China.

Purpose: Currently, there is no clear clinical evidence that short implants are suitable for immediate loading. Therefore, this meta-analysis aims to evaluate whether immediate loading increases the failure risk of short dental implants.

Materials And Methods: This meta-analysis was registered at PROSPERO (CRD 42020195890). Read More

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Comparison of implant placement accuracy in two different preoperative digital workflows: navigated vs. pilot-drill-guided surgery.

Int J Implant Dent 2021 Apr 30;7(1):45. Epub 2021 Apr 30.

Christian Albrechts University, Department of Oral and Maxillofacial Surgery, University Hospital of Schleswig-Holstein, Campus Kiel, Arnold-Heller-Straße 3, 24105, Kiel, Germany.

Background: The aim of the study is to evaluate the accuracy of a new implant navigation system on two different digital workflows.

Methods: A total of 18 phantom jaws consisting of hard and non-warping plastic and resembling edentulous jaws were used to stimulate a clinical circumstance. A conventional pilot-drill guide was conducted by a technician, and a master model was set by using this laboratory-produced guide. Read More

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Two-Year Follow-Up of 4-mm-Long Implants Used as Distal Support of Full-Arch FDPs Compared to 10-mm Implants Installed after Sinus Floor Elevation. A Randomized Clinical Trial.

Int J Environ Res Public Health 2021 04 6;18(7). Epub 2021 Apr 6.

Department of Biomedical and Neuromotor Science, University of Bologna, 40126 Bologna, Italy.

Background: In edentulous patients, bone resorption cannot allow the installation of standard implants and it is demanded to use short implants in the residual alveolar bone or longer implants in grafted bone.

Aim: To compare the survival and bone level changes of standard plus short 4-mm implants used as distal support of a maxillary full-arch fixed dental prostheses (FDPs) with standard (10-mm) implants placed in association with a bilateral sinus floor augmentation procedure.

Material And Methods: Full-arch FDPs supported by six implants were randomly placed in both groups. Read More

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Bilateral asymmetry of bone density adjacent to pelvic sarcomas: A retrospective study using computed tomography.

J Orthop Res 2021 Apr 29. Epub 2021 Apr 29.

Department of Mechanical Engineering, Rice University, Houston, Texas, USA.

Limb-salvaging hemipelvectomy surgeries involving allograft or custom prosthesis reconstruction require high quality remaining pelvic bone for adequate device fixation. Modeling studies of custom pelvis prosthesis designs typically mirror contralateral pelvic bone material properties to the ipsilateral pelvis. However, the extent of bone material property and geometric symmetry, and thus the appropriateness of mirroring, remains unknown and should be considered when designing or analyzing the performance of pelvic prostheses. Read More

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One-Year Results Assessing the Performance of Prosthetic Rehabilitations in the Posterior Maxilla Supported by 4-mm Extrashort Implants Splinted to 10-mm Implants: A Prospective Case Series.

Int J Oral Maxillofac Implants 2021 Mar-Apr;36(2):371-378

Purpose: The aim of this study was to evaluate the survival and success rates of oral rehabilitations in a shortened maxillary dental arch and expanded maxillary sinus with 4-mm extrashort implants splinted to longer ones.

Materials And Methods: One 10-mm and one/two extrashort 4-mm titanium-zirconium SLActive tissue-level dental implants were inserted into 11 patients with limited vertical bone availability due to an expanded maxillary sinus antrum. Immediately and 6 months after insertion, implant stability resonance frequency analysis (RFA) values were assessed with an Osstell device. Read More

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Evaluation of reverse torque values and failure loads of three different abutment designs with internal connections.

Dent Res J (Isfahan) 2020 Nov-Dec;17(6):439-446. Epub 2020 Dec 10.

Department of Prosthodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.

Background: High percentage of biomechanical complications such as screw loosening in dental implants can be related to implant-abutment (I/A) connection properties which affect the behavior of implant assembly against functional loads in the oral cavity. The aims of the present study were to compare the reverse torque values (RTVs) and failure loads of three abutment types with internal Morse taper connection.

Materials And Methods: In this experimental study, eighteen implants (4. Read More

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December 2020

Standardized artificially created stable pertrochanteric femur fractures present more homogenous results compared to osteotomies for orthopaedic implant testing.

BMC Musculoskelet Disord 2021 Apr 20;22(1):371. Epub 2021 Apr 20.

University of Basel, Basel, Switzerland.

Background: With regard to biomechanical testing of orthopaedic implants, there is no consensus on whether artificial creation of standardized bone fractures or their simulation by means of osteotomies result in more realistic outcomes. Therefore, the aim of this study was to artificially create and analyze in an appropriate setting the biomechanical behavior of standardized stable pertrochanteric fractures versus their simulation via osteotomizing.

Methods: Eight pairs of fresh-frozen human cadaveric femora aged 72. Read More

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Determination of Immediate-loaded Single Implants' Stability with Periotest.

J Contemp Dent Pract 2020 Nov 1;21(11):1245-1248. Epub 2020 Nov 1.

Department of Dentistry, Patna Medical College and Hospital, Patna, Bihar, India.

Aim And Objective: The aim of this study was to determine the stability of immediate-loaded single implants with periotest.

Materials And Methods: In this study, dental implants with a length ranging from 10 to 13 mm and diameter of 3.0-4. Read More

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November 2020

Effect of crown height on the screw joint stability of zirconia screw-retained crowns.

J Prosthet Dent 2021 Apr 8. Epub 2021 Apr 8.

Professor, Restorative and Prosthetic Dentistry, The Ohio State University College of Dentistry, Columbus, Ohio.

Statement Of Problem: Medium- to long-term data for the performance of zirconia crowns with titanium (Ti) bases are sparse, particularly when the crown height space and occlusal loads are high.

Purpose: The purpose of this in vitro study was to assess the effect of the height of zirconia screw-retained implant crowns with a Ti base on the screw joint stability after cyclic loading. A secondary aim was to investigate the survival of zirconia crowns of different heights after cyclic loading. Read More

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The Use of 4-mm Implants Splinted to 10-mm Implants for Replacement of Multiple Missing Teeth in the Posterior Maxilla Region with Expanded Maxillary Sinus. An Observational Cases Series: Patient Characteristics and Preliminary Results.

Int J Periodontics Restorative Dent 2021 Mar-Apr;41(2):261-268

This study aimed to rehabilitate shortened maxillary dental arch with splinted crowns by connecting ultra-short implants with longer ones. In the posterior maxilla of 11 patients, one 10-mm (n = 11) and one or two ultra-short 4-mm (n = 17) dental implants were inserted. The insertion torque was lower than 20 Ncm in 55% of the 10-mm implants and in 94% of the 4-mm implants ( > . Read More

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New Generation of Fixture-Abutment Connection Combining Soft Tissue Design and Vertical Screw-Retained Restoration: 1-Year Clinical, Aesthetics and Radiographic Preliminary Evaluation.

Dent J (Basel) 2021 Mar 24;9(4). Epub 2021 Mar 24.

Department of Dentistry "Fra G.B. Orsenigo-Ospedale San Pietro F.B.F.", 00100 Rome, Italy.

Implant design factors and the abutment connection are correlated with crestal bone stability. The aim of the present study was to evaluate a new type of screw-retained prostheses delivered on tissue-level implants with conical external vertical seal and internal hexagon connection. Implants 4. Read More

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The Impact of Polyamine Precursors, Polyamines, and Steroid Hormones on Temporal Messenger RNA Abundance in Bovine Satellite Cells Induced to Differentiate.

Animals (Basel) 2021 Mar 10;11(3). Epub 2021 Mar 10.

Department of Animal, Dairy and Veterinary Science, Utah State University, 4815 Old Main Hill, Logan, UT 84322, USA.

Emerging research suggests that hormones found in anabolic implants interact with polyamine biosynthesis. The objective of this study was to determine the effects of steroidal hormones, polyamines and polyamine precursors on bovine satellite cell (BSC) differentiation and polyamine biosynthesis temporally. Primary BSCs were induced to differentiate in 3% horse serum (CON) and treated with 10 nM trenbolone acetate (TBA), 10 nM estradiol (E2), 10 nM TBA and 10 nM E2, 10 mM methionine, 8 mM ornithine, 2 mM putrescine, 1. Read More

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The Combined Contribution of Vascular Endothelial Cell Migration and Adhesion to Stent Re-endothelialization.

Front Cell Dev Biol 2021 4;9:641382. Epub 2021 Mar 4.

West China School of Basic Medical Sciences and Forensic Medicine, Institute of Biomedical Engineering, Sichuan University, Chengdu, China.

Coronary stent placement inevitably causes mechanical damage to the endothelium, leading to endothelial denudation and in-stent restenosis (ISR). Re-endothelialization depends mainly on the migration of vascular endothelial cells (VECs) adjacent to the damaged intima, as well as the mobilization and adhesion of circulating VECs. To evaluate the combined contribution of VEC migration and adhesion to re-endothelialization under flow and the influence of stent, models were constructed to simulate various endothelial denudation scales (2 mm/5 mm/10 mm) and stent deployment depths (flat/groove/bulge). Read More

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Effect of Ulnar Head Offset on Distal Radioulnar Joint Stability.

J Hand Surg Am 2021 Mar 12. Epub 2021 Mar 12.

Department of Orthopedics and Rehabilitation, University of New Mexico, Albuquerque, NM.

Purpose: A complete ulnar head replacement may be indicated in cases of distal radial ulnar joint (DRUJ) dysfunction to address bony pathology in lieu of using a constrained total DRUJ prosthesis. Complete ulnar head implants are simple, but they may be unstable if soft tissue tension is not adequately restored. We hypothesized that incorporating an increased offset in the complete ulnar head replacement would lead to increased tension on the distal oblique interosseous ligament, increased contact force at the DRUJ, and improved joint stability. Read More

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Stress distribution analysis of novel dental mini-implant designs to support overdenture prosthesis.

J Oral Implantol 2021 Mar 9. Epub 2021 Mar 9.

University of São Paulo Prosthesis and dental materials Av. Café, s/n° BRAZIL Ribeirão Preto São Paulo 14040-904 55 36024044 University of São Paulo.

This study aimed to test and compare two novel dental mini-implant designs to support overdentures with a commercial model, regarding the stress distribution, by photoelastic analysis. Three different mini-implant designs (Ø 2.0 mm × 10 mm) were tested: G1-experimental threaded (design with threads and 3 longitudinal and equidistant self-cutting chamfers), G2-experimental helical (design with 2 long self-cutting chamfers in the helical arrangement), and G3-Intra-Lock® System. Read More

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Evaluation of an occipito-cervico fusion with a new implant design: a biomechanical study.

BMC Musculoskelet Disord 2021 Mar 6;22(1):250. Epub 2021 Mar 6.

Department of Orthopaedic Surgery, RWTH Aachen University Hospital, Pauwelsstraße 30, 52074, Aachen, Germany.

Background: A novel implant for occipitocervical fusion consisting of a median plate with an additional hook inserting in the foramen magnum was tested. Aim of this study was to test the stability of a new implant for occipitocervical fusion against the already available and employed median plate implant without hook.

Material And Method: 36 rigid polyurethane foams occipital artificial bones were used. Read More

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