Dentistry Research

19:33 EDT 20th July 2018 | BioPortfolio

Functional considerations in oral cavity reconstruction.

The treatment of oral cavity cancer may impair speech and swallowing function. Optimizing posttreatment function may lead to significant improvement of quality of life.

Comparative In Vitro Study of Implant-Supported Restorations: Implant-Abutment Complex With and Without Prosthetic Finishing Line.

The aim of this study was to evaluate the mechanical behavior of implant-supported cemented restorations placed on two types of abutment design, with and without a prosthetic finish line, evaluating fracture resistance and the type of fracture produced in the abutment-crown complex.

Effects of Low-Profile Stud Attachment Configurations on Stress Distribution Characteristics of Implant-Retained Overdentures.

Implant-retained mandibular overdentures are a proven treatment modality for edentulous patients. Low-profile stud attachments may allow divergence between the abutments up to 40 degrees. The purpose of this study was to investigate load transfer characteristics of various locations and nylon male configurations of low-profile stud attachment-retained overdentures.

Influence of Rigid Bar and Nonrigid Double Crown Attachments on Maxillary Implant Overdentures: An In Vitro Study with Differential Bone Quality.

To evaluate the bending strain exerted on a maxillary implant overdenture supported by rigid bar and nonrigid double crown connectors in models of high- and low-quality bone.

Prevalence of Peri-implant Disease According to Periodontal Probing Depth and Bleeding on Probing: A Systematic Review and Meta-Analysis.

To compare changes in the prevalence of peri-implantitis when the unit of analysis is the subject and when the unit of analysis is the implant, by means of meta-analysis with subgroup and sensitivity analyses, according to the case definition and cutoffs. Periodontal probing depth (PPD) and bleeding on probing (BOP) were considered the primary variables.

Impact of Surface Chemistry Modifications on Speed and Strength of Osseointegration.

To compare the bone responses of chemically modified implants using the plasma immersion ion implantation and deposition method with those of blasted implants.

Effects of Axial Loading on the Pull-out Force of Conical Connection Abutments in Ankylos Implant.

The aim of this study was to assess the effects of simulated axial loadings on the pull-out force required to disengage a two-piece conical connection abutment from an implant.

Impact of Implant Number on Mandibular Implant-Supported Profile Prostheses: A Systematic Review.

To assess studies on edentulous patients rehabilitated using mandibular implant-supported profile prostheses and analyze the impact of different numbers of implants used on the implant survival rate, peri-implant bone loss, and prosthesis survival rate.

Marginal and Internal Adaptation of Hybrid Abutment Assemblies After Central and Local Manufacturing, Respectively.

Central manufacturing of two-piece computer-aided design/computer-aided manufacture (CAD/CAM) zirconia abutments may provide a higher accuracy of internal and external adaptation at the expense of delayed restoration delivery. The aim of this study was to compare the fit of two-part zirconia abutments that were either fabricated centrally with the DEDICAM system or at a local laboratory. The field...

Does the Presence of a Cantilever Influence the Survival and Success of Partial Implant-Supported Dental Prostheses? Systematic Review and Meta-Analysis.

To investigate if the presence of a cantilever influences the survival and success of partial fixed implant-supported prostheses, through a systematic review and meta-analysis, with additional analysis of the survival and marginal bone loss rates and prosthesis complications.

Correlation Between Implant Geometry, Implant Surface, Insertion Torque, and Primary Stability: In Vitro Biomechanical Analysis.

Primary implant stability represents the first step for successful osseointegration. The knowledge of the correlation between host bone density, insertion torque, and implant macrogeometry seems to be fundamental to achieve sufficient primary implant bone fixation in each clinical situation. The purpose of this study was to measure, in vitro, the impact of dental implant macrogeometry and insertio...

Antimicrobial Efficacy of Photodynamic Therapy and Light-Activated Disinfection Against Bacterial Species on Titanium Dental Implants.

The aim of this study was to evaluate the efficacy of photodynamic therapy (PDT) and light-activated disinfection (LAD) against a 3-day-old bacterial suspension prepared from three different bacterial species present on titanium dental implants, and to analyze the possible alterations of the implant surfaces as a result of the PDT and LAD.

Interventions to Maintain Locator-Retained Mandibular Overdentures on Both External Hex and Internal Connection Implants: A Retrospective Study.

To quantify the rate of maintenance interventions of mandibular prostheses: complete dentures and overdentures retained by two implants, with either internal hex or external hex connections.

Are Intraoral Radiographs Accurate in Determining the Peri-implant Marginal Bone Level?

The primary objective of this study was to assess the accuracy of periapical radiographs in determining the peri-implant marginal bone level. The accuracy of the linear measurements on radiographs was considered as the absolute difference between the true, intraoperative or surgical marginal bone level measurements (direct bone measurements during surgical procedures) and the radiographic measured...

Evaluation of Microbial Contamination in the Inner Surface of Titanium Implants Before Healing Abutment Connection: A Prospective Clinical Trial.

The objective of this investigation was to assess the microbiologic contamination in the inner surface of titanium implants prior to prosthetic abutment placement.

Predicting Patient-Reported Outcomes of Dental Implant Treatment.

To investigate whether pretreatment patient-related factors are associated with the outcomes of dental implant treatment through multidimensional evaluations of oral health-related quality of life and health-related quality of life using the Oral Health Impact Profile (OHIP) and the 36-Item Short Form Health Survey (SF-36) developed from the Medical Outcomes Study, respectively.

Classification Systems for Peri-implantitis: A Narrative Review with a Proposal of a New Evidence-Based Etiology Codification.

To present the different definitions of peri-implantitis proposed in the literature and to propose a new evidence-based etiology-driven classification of peri-implantitis to accurately and fully describe the etiology of peri-implantitis.

Cone Beam Computed Tomography Assessment of the Buccal Bone Thickness in Anterior Maxillary Teeth: Relevance to Immediate Implant Placement.

Peri-implant bone thickness is an important local factor that could influence esthetic outcomes in immediate implant therapy. The aim of this study was to assess the thickness of the buccal bone overlying the anterior maxillary teeth in Kenyans.

Bone Volume Dynamics and Implant Placement Torque in Horizontal Bone Defects Reconstructed with Autologous or Xenogeneic Block Bone: A Randomized, Controlled, Split-Mouth, Prospective Clinical Trial.

The aim of this study was to evaluate volumetric stability of autologous and xenogeneic block grafts and primary stability of implants in maxillary grafted areas.

Molecular Assessment of Human Peri-implant Mucosal Healing at Laser-Modified and Machined Titanium Abutments.

To compare, by gene profiling analysis, the molecular events underscoring peri-implant mucosa formation at machined vs laser-microgrooved implant healing abutments.

Long-Term Esthetic Outcome of Tissue-Level and Bone-Level Implants in the Anterior Maxilla.

The aim of this study was to assess and compare the esthetic outcome of tissue-level (TL) and bone-level (BL) implants that had been placed as single implants in the anterior maxilla.

A Prospective Multicenter Study on Radiographic Crestal Bone Changes Around Dental Implants Placed at Crestal or Subcrestal Level: One-Year Findings.

To compare the peri-implant radiographic crestal bone changes around implants placed at the subcrestal or crestal level.

A Comparison of Esthetic Features of Pre-existing Natural Tooth Versus Post-Implant Restoration in the Esthetic Zone: A Retrospective 12-month Follow-up.

To correlate the link between natural teeth located in esthetic regions of the arches before extraction with their definitive dental implant restorations, and to propose a new and contemporary esthetic index based on the natural dentition (EIND) preoperatively.

Infraposition of Implant-Retained Maxillary Incisor Crown Placed in an Adult Patient: Case Report.

Several studies have clearly shown that osseointegrated implants, when inserted in growing bone, such as in adolescents, do not follow the eruptive path of adjacent teeth; instead, they act like ankylosed teeth, remaining in a stationary position for the lifetime, thus developing a progressive infraposition of the implant-supported crown. However, further studies have demonstrated that similar cha...

Inferior Alveolar Nerve Medialization for Dental Implant Placement: Case Report with the Introduction of a New Technique.

Inferior alveolar nerve repositioning is an option for treating the edentulous posterior mandible with insufficient bone height above the inferior alveolar canal. This report presents a case in which inferior alveolar nerve medialization was performed for placing dental implants. In the second postoperative week, mandibular fracture occurred after biting on a relatively solid piece of food, which ...

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