Platform switching is the use of smaller diameter abutments on wider diameter implants. It is used as a method of reducing crestal bone loss and maintaining the gingival papillae. Platform switching appears to limit crestal resorption and seems to preserve peri-implant bone levels. A certain amount of bone remodeling one year after final restoration occurs, but significant differences concernin...

PURPOSE The purpose of this study was to evaluate the efficacy of bone ring augmentation technique for three-dimensional augmentation of severely defective sockets along with placement of immediate dental implants. MATERIALS AND METHODS A clinical study was conducted on 14 patients with 15 defective sockets requiring extractions and immediate implant placement. Following extraction, bone ring...

Background and Aim: Intraosseous implants can be placed using three different techniques: immediate, early, and delayed. The aim of this study was to compare the changes in the marginal bone level around implants after immediate and delayed im-plant placement. Materials and Methods: In the present prospective cohort study, 26 implants were placed in 26 patients divided into two groups. In grou...

Post-extraction crestal bone resorption is common and unavoidable which can lead to significant ridge dimensional changes. To regenerate enough bone for successful implant placement, Guided Bone Regeneration (GBR) is often required. GBR is a surgical procedure that uses barrier membranes with or without particulate bone grafts or/and bone substitutes. There are two approaches of GBR in implant ...

PURPOSE The aim of this pilot study was to determine what effect thin mucosal tissues can have on crestal bone stability around implants with platform switching. MATERIALS AND METHODS Twelve 2-piece implants, consisting of 6 implants with horizontally matching implant-abutment connection (control) and 6 implants with platform switching (test) were placed in 4 patients. The mean age of the pat...

The aim of this study was to compare the bone resorption differences between implant placement sites (IPS) and non-implant placement sites (NIPS) after autogenous block bone grafts in the anterior maxilla. Fourteen patients (58 edentulous sites) with alveolar atrophy in the anterior maxilla were treated with autogenous block bone grafts. CBCT examinations were performed at 1 month before surger...

Objective: To compare between implant retained overdenture with two different attachments by measuring : Retention. Bone changes radiographic evaluation. Subjects and Methods: Eight completely edentulous patients were selected from the Outpatient Clinic of Prosthodontic Department; Faculty Dental medicine, Al Azhar University classified into equal groups. Each patient in groups received implant...

INTRODUCTION Vertical augmentation of the alveolar ridge is necessary for extensive resorption of the alveolar ridge. AIM To evaluate treatment outcome after alveolar ridge augmentation by a sandwich osteotomy combined with an interpositional allograft. PATIENTS AND METHODS The deficient alveolar ridges were augmented by a sandwich osteotomy combined with bovine collagen matrix as an interp...

PURPOSE This retrospective study compares the amount of bone resorption around implants between an autogenous tooth bone graft (AutoBT) and a synthetic bone graft after a bone-added crestally approached sinus lift with simultaneous implant placements. METHODS In all, 37 patients participated in this study. Seventeen patients were grouped as group I and underwent an AutoBT-added sinus lift usi...