Effectiveness of zygomatic-implant fixed rehabilitation for the atrophic edentulous maxilla: protocol for a systematic review and network meta-analysis.

Background: Atrophic edentulous maxilla is a debilitating condition caused by the progressive and irreversible bone resorption following loss of teeth, that results in bone of inadequate volume and density. This makes conventional implant therapy extremely challenging without complex reconstructive procedures. Several techniques such as sinus augmentation, short implants, and tilted implants have been used for the rehabilitation of the atrophic maxilla.

3D printing vs traditional workflow for the fabrication of mandibular implant overdentures: study protocol for a mixed-methods cross-over RCT.

Background: Complete tooth loss is a significant global oral health issue, particularly impacting older individuals with lower socioeconomic status. Computer-assisted technologies enhance oral healthcare access by the elderly. Despite promising in vitro reports on digital denture materials, evidence from randomized clinical trials (RCTs) is lacking to verify their performance.

Can patients detect peri‑implant mucosal inflammation? Results from a multicentre randomized trial.

Purpose: The objective of this study was to compare patient-reported outcomes (PROs) of peri‑implant soft tissue inflammation and aesthetics around single-tooth implants in the anterior maxillary region with three different implant-abutment interface designs.

Methods: Participants were randomized to one of three different types of implant-abutment interface designs [Conical (CI), flat-to-flat (FI), and Platform Switched (PS)]. Implants and provisional crowns with prefabricated titanium abutments were placed 5 months following extraction and/or ridge augmentation.

A 5-Year Esthetic RCT Assessment of Anterior Maxillary Single-Tooth Implants with Different Abutment Interfaces.

Purpose: This study sought to define the tissue responses at different implant-abutment interfaces by studying bone and peri-implant mucosal changes using a 5-year prospective randomized clinical trial design study. The conus interface was compared with the flat-to-flat interface and platform-switched implant-abutment systems.

Materials And Methods: One hundred forty-one subjects were recruited and randomized to the three treatment groups according to defined inclusion and exclusion criteria.

Development of a Checklist to Prevent Reconstructive Errors Made By Undergraduate Dental Students.

Purpose: To design a checklist in order to reduce the frequency of reconstructive preventable errors (PE) performed by undergraduate dental students at McGill University.

Materials And Methods: The most common PE occurring at a university dental clinic were identified by three reviewers analyzing the refunded cases, and used to create a preliminary checklist. This checklist was then validated by a panel of dental educators to produce a finalized 20-item checklist.

Impact of immediately loaded implant-supported maxillary full-arch dental prostheses: a systematic review.

Objective: The immediate loading of implant-assisted fixed prostheses in edentulous maxillae may achieve favorable success rates with reduced treatment time. An evidence summary of clinical trials is key to recommend loading protocols in these cases.

Objectives: To compare immediately loaded, fully implant-supported complete dentures to early and conventional/delayed loading in the edentulous maxillae of adult patients by a systematic review of controlled clinical trials (CCT).

Three-Year Prospective Randomized Comparative Assessment of Anterior Maxillary Single Implants with Different Abutment Interfaces.

Purpose: The goal of this investigation was to define time-dependent peri-implant tissue changes at implants with different abutment interface designs.

Materials And Methods: Participants requiring replacement of single maxillary anterior and first premolar teeth were recruited and treated under an institutional review board (IRB)-approved protocol. Implants, titanium abutments, and provisional crowns were placed in healed ridges 5 months following preservation after tooth extraction with recombinant human bone morphogenetic protein-2 (rhBMP-2).

Single-implant overdentures retained by the Novaloc attachment system: study protocol for a mixed-methods randomized cross-over trial.

Background: Overdentures retained by a single implant in the midline have arisen as a minimal implant treatment for edentulous mandibles. The success of this treatment depends on the performance of a single stud attachment that is susceptible to wear-related retention loss. Recently developed biomaterials used in attachments may result in better performance of the overdentures, offering minimal retention loss and greater patient satisfaction.

Lay preferences for dentogingival esthetic parameters: A systematic review.

Statement Of Problem: An objective definition of the characteristics that render a smile esthetically acceptable in the eye of laypeople is lacking.

Purpose: The purpose of this systematic review was to identify, appraise, and synthesize the available evidence on the opinion of laypeople regarding the dentogingival characteristics that render a smile esthetically acceptable. The evidence was collected by surveying with standardized digitally modified smile images.

Patient satisfaction with laser-sintered removable partial dentures: A crossover pilot clinical trial.

Statement Of Problem: Clinical data regarding newly introduced laser-sintered removable partial dentures (RPDs) are needed before this technique can be recommended. Currently, only a few clinical reports have been published, with no clinical studies.

Purpose: This clinical trial compared short-term satisfaction in patients wearing RPDs fabricated with conventional or computer-aided design and computer-aided manufacturing (CAD-CAM) laser-sintering technology.

Proton Pump Inhibitors and the Risk of Osseointegrated Dental Implant Failure: A Cohort Study.

Proton pump inhibitors (PPIs) have a negative impact on bone accrual. Because osseointegration is influenced by bone metabolism, this study investigates the association between PPIs and the risk of osseointegrated implant failure. This retrospective cohort study included a total of 1,773 osseointegrated dental implants in 799 patients (133 implants in 58 PPIs users and 1,640 in 741 non-users) who were treated at the East Coast Oral Surgery Clinic in Moncton, Canada, from January 2007 to September 2015.

Failure rate of single-unit restorations on posterior vital teeth: A systematic review.

Statement Of Problem: No knowledge synthesis exists concerning when to use a direct restoration versus a complete-coverage indirect restoration in posterior vital teeth.

Purpose: The purpose of this systematic review was to identify the failure rate of conventional single-unit tooth-supported restorations in posterior permanent vital teeth as a function of remaining tooth structure.

Material And Methods: Four databases were searched electronically, and 8 selected journals were searched manually up to February 2015.

Antihypertensive Medications and the Survival Rate of Osseointegrated Dental Implants: A Cohort Study.

Purpose: Antihypertensive drugs in general are beneficial for bone formation and remodeling, and are associated with lower risk of bone fractures. As osseointegration is influenced by bone metabolism, this study aimed to investigate the association between antihypertensive drugs and the survival rate of osseointegrated implants.

Materials And Methods: This retrospective cohort study included a total of 1,499 dental implants in 728 patients (327 implants in 142 antihypertensive-drugs-users and 1,172 in 586 nonusers).

Impact of a "TED-Style" presentation on potential patients' willingness to accept dental implant therapy: a one-group, pre-test post-test study.

Purpose: A survey was conducted to assess the impact of a TED-like educational session on participants' willingness to accept dental implant therapy.

Materials And Methods: Volunteers interested in having information about dental implant therapies were recruited and asked to complete a two-part survey before and after an educational session. The initial survey elicited demographic information, self-perceived knowledge on dental implants and willingness to this kind of treatment.

Bone Augmented With Allograft Onlays for Implant Placement Could Be Comparable With Native Bone.

Purpose: Bone allograft onlays have great potential in alveolar bone augmentation. However, no comparable cohort study is available in the literature showing whether implants placed in bone augmented with allograft onlays would have a success rate comparable to those placed in native alveolar bone. The objective of the cohort study was to investigate whether the quality of bone augmented with allograft onlays was sufficient to place dental implants and achieve success rates comparable to those in un-grafted bone.

A multicenter randomized comparative trial of implants with different abutment interfaces to replace anterior maxillary single teeth.

Purpose: The implant-abutment interface may affect peri-implant mucosal architecture, and influence health and esthetics. The goal of this 1-year follow-up report of a 5-year clinical investigation was to examine the peri-implant mucosal tissue responses to different implant-abutment interface designs.

Materials And Methods: Subjects requiring an anterior maxillary implant were recruited.

Plaque Accumulation Beneath Maxillary All-on-4™ Implant-Supported Prostheses.

Background: Maxillary prostheses supported by four implants, following the All-on-4(™) principles, have become an accepted effective treatment for totally edentulous patients. Maintaining the hygiene of such fixed implant-supported prostheses is challenging.

Purpose: The purpose of this clinical study was to evaluate the distribution of plaque on the fitting surface of All-on-4 fixed prostheses in order to find new strategies for maintaining their hygiene.

Effect of implant angulation on attachment retention in mandibular two-implant overdentures: a clinical study.

Purpose: Attachment wear can affect the performance of mandibular two-implant overdentures (IODs). This prospective clinical study aimed to investigate the effect of interimplant angulation on the retention achieved by two attachment systems at different time points within 1 year of wearing IODs.

Materials And Methods: Twenty-four patients (mean age = 73.

Hydrogen peroxide whitens teeth by oxidizing the organic structure.

Objectives: The mechanism of tooth bleaching using peroxide oxidizers is not fully understood. It is unknown whether peroxide radicals make teeth whiter by deproteinizing, demineralizing, or oxidizing tooth tissues. This study was designed to define the mechanism of tooth bleaching and determine which of tooth enamel chemical components is/are affected by bleaching.

Wear of matrix overdenture attachments after one to eight years of clinical use.

Statement Of Problem: Matrices of unsplinted attachment systems are generally reported to be the weak component of implant overdentures, often requiring frequent maintenance. Clinical wear results in reduced retention of the prosthesis, requiring activation or renewal of the matrix to restore the initial level of retention.

Purpose: The purpose of this retrospective study was to measure the wear of the matrix of a ball attachment after various periods of clinical wear.

The role of enamel crystallography on tooth shade.

Objectives: Tooth shade is influenced by a combination of extrinsic-stains that are adsorbed to the enamel surface and by its intrinsic-shade resulting from the interaction of light with tooth structures. This study was designed to investigate how the variations in enamel ultrastructure may affect tooth optical properties.

Methods: One-hundred extracted teeth were collected from adult patients attending McGill-Undergraduate Dental Clinics.

Clinical wear of overdenture ball attachments after 1, 3 and 8 years.

Objectives: Implant-supported overdentures have become the treatment of choice in restoring complete edentulism, but the types of attachment to assure durable retention are a subject of debate. Ball attachments were reported as a simple treatment, but wear of components was responsible for a decrease in retention. The aim of this retrospective study was to measure the wear of the ball abutment or patrix after three different periods of clinical wear.

Wear of ball attachments after 1 to 8 years of clinical use: a qualitative analysis.

The purpose of this study was to analyze and compare scanning electron microscopy (SEM) observations of ball attachments that had been worn by patients during three periods of clinical use. One hundred forty-four specimens of ball anchor attachments (gold alloy matrix and titanium patrix) were studied by SEM after periods of approximately 1, 3.5, and 8 years of clinical use.