Low Arousal Threshold Estimation Predicts Failure of Mandibular Advancement Devices in Obstructive Sleep Apnea Syndrome.

Introduction: The treatment of choice for obstructive sleep apnea syndrome (OSAS) is continuous positive airway pressure (CPAP). However, CPAP is usually poorly tolerated and mandibular advancement devices (MADs) are an alternative innovative therapeutic approach. Uncertainty still remains as to the most suitable candidates for MAD.

Definitive Abutments Placed at Implant Insertion and Never Removed: Is It an Effective Approach? A Systematic Review and Meta-Analysis of Randomized Controlled Trials.

Purpose: To assess whether repeated abutment disconnections and reconnections have any impact on peri-implant bone resorption and soft tissue healing.

Materials And Methods: Electronic and manual searches were conducted for English-language articles published up to March 2017 that identified a relation between repeated disconnections of implant abutments (PA group) and prosthetic or implant failures, complications, marginal bone loss (MBL), soft tissue healing, and esthetic evaluation (pink esthetic score [PES]) after at least 1 year of function compared with implants receiving a final abutment at the time of implant placement (DA group).

Results: Fourteen articles (535 patients with 994 implants) were selected for qualitative analysis.

Comparison of allografts and xenografts used for alveolar ridge preservation. A clinical and histomorphometric RCT in humans.

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.

Healing at the interface between recipient sites and autologous block bone grafts affixed by either position or lag screw methods: a histomorphometric study in rabbits.

Objective: To compare the sequential healing at the interface gap occurring between autologous bone grafts and recipient sites using two types of fixation techniques.

Material And Methods: Twenty-four adult male New Zealand white rabbits were used. Two bone grafts were collected from the calvaria and secured to the lateral aspect of the angle of mandible in each animal.

Microbial colonization at the implant-abutment interface and its possible influence on periimplantitis: A systematic review and meta-analysis.

Purpose: The aim of this systematic review and meta-analysis was to evaluate the microbial colonization at the implant-abutment interfaces (IAI) on bone-level implants and to identify possible association with peri-implant conditions.

Study Selection: The focus question aimed to answer whether two-piece osseointegrated implants, in function for at least 1 year, in human, relate to higher bacterial count and the onset of periimplantitis, compared to healthy peri-implant conditions. Search strategy encompassed the on-line (MedLine, Google scholar, Cochrane library) literature from 1990 up to March 2015 published in English using combinations of MeSH (Medical Subject Headings) and search terms.

Ten-year hard and soft tissue results of a pilot double-blinded randomized controlled trial on immediately loaded post-extractive implants using platform-switching concept.

Aim: To evaluate the 10-year post-loading radiological and esthetic outcomes of implants inserted in post-extraction sites and restored with or without platform-switching protocol.

Material And Methods: Twenty-two patients were scheduled for maxillary post-extractive implant, using a 13 mm in length and 5.5 mm in diameter implant (Global, Sweden & Martina, Padua, Italy).

Sinus mucosa elevation using Bio-Oss or Gingistat collagen sponge: an experimental study in rabbits.

Objective: To describe the sequential healing in augmented sinus cavities with deproteinized bovine bone mineral (DBBM) granules or collagen sponges.

Material And Methods: Twenty albino New Zealand rabbits were included in the study. An incision was performed along the midline of the nasal dorsum, and the nasal bone was exposed.

Five-Year Results of a Randomized Controlled Trial Comparing Patients Rehabilitated with Immediately Loaded Maxillary Cross-Arch Fixed Dental Prosthesis Supported by Four or Six Implants Placed Using Guided Surgery.

Purpose: To compare the 5-year clinical and radiological outcomes of patients rehabilitated with four or six implants placed using guided surgery and immediate function concept.

Materials And Methods: Forty patients randomly received four (All-on-4) or six (All-on-6) immediately loaded implants, placed using guided surgery, to support a cross-arch fixed dental prosthesis. Outcome measures were survival rates of implants and prostheses, complications, peri-implant marginal bone loss, and periodontal parameters.