Comparison between sandwich bone augmentation and allogenic block graft for vertical ridge augmentation in the posterior mandible.

Introduction: The purpose of this randomized controlled clinical trial was to evaluate 2 different techniques for vertical ridge augmentation (VRA) of the posterior mandible.

Materials And Methods: Sixteen subjects with 19 posterior mandibular edentulous sites requiring VRA were recruited for the study. Sites were randomly treated with either block allograft (BA; N = 9) or sandwich bone augmentation (SBA; N = 10).

Influence of lateral window dimensions on vital bone formation following maxillary sinus augmentation.

Purpose: The aim of this study was to evaluate the influence that lateral window dimensions may have on maxillary sinus augmentation outcomes.

Materials And Methods: Patients requiring maxillary sinus augmentation by a lateral window approach and delayed implant placement were recruited in this study. Approximate window dimensions (AWD) were calculated in mm2 at the time of the surgical intervention.

Use of cone beam computed tomography in implant dentistry: the International Congress of Oral Implantologists consensus report.

Purpose: The International Congress of Oral Implantologists has supported the development of this consensus report involving the use of Cone Beam Computed Tomography (CBCT) in implant dentistry with the intent of providing scientifically based guidance to clinicians regarding its use as an adjunct to traditional imaging modalities.

Materials And Methods: The literature regarding CBCT and implant dentistry was systematically reviewed. A PubMed search that included studies published between January 1, 2000, and July 31, 2011, was conducted.

Long-term histopathologic evaluation of bioactive glass and human-derived graft materials in Macaca fascicularis mandibular ridge reconstruction.

Objectives: To evaluate the long-term clinical and histologic characteristics of alveolar ridge bone regenerated by 2 different types of bone graft materials in a Macaca fascicularis (nonhuman primate) species animal.

Methods: Bilateral osseous defects created in edentulous mandibular alveolar ridges in a nonhuman primate were grafted with bioactive glass (alloplast) on 1 side, and with human demineralized bone matrix (xenograft) on the contralateral side, with each covered by a dermomatrix barrier membrane before mucoperiosteal tissue flap closure and suturing. At 4 years posttreatment, surgical re-entry was performed, and bone core biopsies were obtained from each of the grafted edentulous alveolar ridges, placed in 10% formalin, and processed for light microscopic analysis.

Hard and soft tissue changes after crestal and subcrestal immediate implant placement.

Background: The purpose of this study is to assess the influence of the placement level of implants with a laser-microtextured collar design on the outcomes of crestal bone and soft tissue levels. In addition, we assessed the vertical and horizontal defect fill and identified factors that influenced clinical outcomes of immediate implant placement.

Methods: Twenty-four patients, each with a hopeless tooth (anterior or premolar region), were recruited to receive dental implants.

Fixed rehabilitation of severely atrophic jaws using immediately loaded basal disk implants after in situ bone activation.

Rehabilitation of severely atrophic jaws is facilitated when basal disk implants are used after activation of the future bony implant bed with a purpose-designed instrument (Osteotensor) 45 to 90 days before implant surgery. Fabrication of a highly rigid, screw-secured fixed prosthesis that acts as an external orthopedic fixator permits immediate functional loading. This protocol also represents a second chance for patients who have experienced complete implant loss and/or bone graft failure.

Mandibular nerve neurosensory impairment after dental implant surgery: management and protocol.

More than 70% of dentists have experienced patients with postoperative paresthesia/dysesthesia or anesthesia as a result of dental procedures. The most common nerve affected is the mandibular nerve, which may be injured during either implant surgery or bone grafting procedures. However, no organized protocol directed specifically for general dentists, or for the vast majority of specialists, has been published.

Clinical and histologic outcomes after the use of a novel allograft for maxillary sinus augmentation: a case series.

Purpose: To document the clinical and histologic outcomes of sinus augmentation using a novel allogenic bone substitute as a sole grafting material.

Materials: Patients in need of sinus augmentation before implant placement were recruited for this study. Sinus augmentation procedures were performed following a lateral approach, using a freeze-dried allograft as the only grafting material.

The influence of the bucco-palatal distance on sinus augmentation outcomes.

Background: Maxillary sinus augmentation is one of the most reliable implant site development options to increase vertical bone height. However, graft consolidation requires adequate angiogenesis and migration of cells involved in osteogenesis and bone remodeling. It is speculated that these biologic events are greatly determined by the dimensions of the maxillary sinus cavity.

A novel decision-making process for tooth retention or extraction.

Background: Implant-supported restorations have become the most popular therapeutic option for professionals and patients for the treatment of total and partial edentulism. When implants are placed in an ideal position, with adequate prosthetic loading and proper maintenance, they can have success rates >90% over 15 years of function. Implants may be considered a better therapeutic alternative than performing more extensive conservative procedures in an attempt to save or maintain a compromised tooth.

Posterior implant single-tooth replacement and status of adjacent teeth during a 10-year period: a retrospective report.

Background: The purpose of this case series study was to evaluate posterior single-tooth implant survival and the long-term conditions of the adjacent teeth.

Methods: A retrospective evaluation of 1,162 consecutive patients with a single missing posterior tooth treated with 1,377 external hex implants supporting 1,365 restorations surrounded by natural teeth over a 1- to 10-year period was reviewed from four private offices. Implant survival data were collected relative to stage I to stage II healing, stage II to prosthesis delivery, and prosthesis delivery to up to 10 years of follow-up.

Atraumatic extractions: a biomechanical rationale.

Biomechanical aspects of force have been applied to tooth extraction for centuries. However, the mechanical advantages available to extract the teeth were primarily applied to hold the crown of the tooth, rather than help extract it. An extraction device (Physics Forceps) has been developed to apply a biomechanical rationale to the extraction process of a tooth using a class 1 lever, creep, and shear components of force.

Implant success, survival, and failure: the International Congress of Oral Implantologists (ICOI) Pisa Consensus Conference.

The primary function of a dental implant is to act as an abutment for a prosthetic device, similar to a natural tooth root and crown. Any success criteria, therefore, must include first and foremost support of a functional prosthesis. In addition, although clinical criteria for prosthetic success are beyond the scope of this article, patient satisfaction with the esthetic appearance of the implant restoration is necessary in clinical practice.

Guidelines for maxillary incisal edge position-a pilot study: the key is the canine.

Purpose: The purpose of this pilot study was to evaluate the relationship between the vertical position of the maxillary central incisal edge and the maxillary canine relative to the maxillary lip line in repose of dentate patients. This may be beneficial for clinicians in establishing guidelines for the rehabilitation of edentulous patients.

Materials And Methods: One hundred and four Caucasian dentate patients (59 men and 45 women) between the ages of 30 and 59 years were evaluated.

Effect of absorbable membranes on sandwich bone augmentation.

Objectives: This study was conducted to evaluate the effect of barrier membranes on sandwich bone augmentation (SBA) for the treatment of implant dehiscence defects.

Material And Methods: Twenty-six implant-associated buccal dehiscence defects in 22 patients were treated according to the SBA concept - mineralized human cancellous allograft (inner layer), mineralized human cortical allograft (outer layer) and coverage with barrier membrane. The defects were randomly assigned to the bovine collagen membrane (BME) group; acellular dermal matrix (ADM) group; and no membrane group.

Dermal fillers for facial soft tissue augmentation.

Nowadays, patients are demanding not only enhancement to their dental (micro) esthetics, but also their overall facial (macro) esthetics. Soft tissue augmentation via dermal filling agents may be used to correct facial defects such as wrinkles caused by age, gravity, and trauma; thin lips; asymmetrical facial appearances; buccal fold depressions; and others. This article will review the pathogenesis of facial wrinkles, history, techniques, materials, complications, and clinical controversies regarding dermal fillers for soft tissue augmentation.

Botulinum toxin (Botox) to enhance facial macroesthetics: a literature review.

Dental implants have emerged as a predictable treatment option for partial edentulism. Their ability to preserve bone and soft tissue yields highly esthetic results in the long term. Increasingly, patients are demanding not only enhancements to their dental (micro) esthetics but also to their overall facial (macro) esthetics.

Clinical and histological evaluation of immediate-loaded posterior implants in nonhuman primates.

Purpose: To evaluate a square-thread design implant and compare the bone-implant contact percentage between immediate-loaded and nonloaded implants (controls) in nonhuman primates.

Materials: Five nonhuman primates each received 3 implants, with a total of 5 control implants and 10 immediate-loaded implants in posterior regions of the mouth. Ninety days after surgery (and function was appropriate), block sections of the implants were removed and sectioned in 200-mum thick pieces.