BACKGROUND The reconstruction of a functional occlusion in the presence of severe residual ridge resorption remains a significant challenge for maxillofacial surgeons and prosthodontists. Removable appliances are unsuccessful in severely resorbed cases and the advanced degree of bone loss precludes conventional implant-retained prostehesis. In recent years, bone graft reconstruction of the maxi...

The aim of this study was to evaluate the resorption process during the repair of autogenous bone grafts with or without coverage by an expanded polytetrafluoroethylene (e-PTFE) membrane in female rats with estrogen deficiency using the immunohistochemical technique. Eighty female rats were randomly divided into two groups (OVX and SHAM). The 40 female rats in the OVX group were subjected to ov...

internal inflammatory root resorption (iirr) is a rare condition of the root canal and if it is left untreated it may lead to destruction of the surrounding dental hard tissues. odontoclasts are responsible for this situation which can potentially perforate the root. many initiating factors have been mentioned for iirr, almost all causing chronic inflammation in the vital pulp. iirr is usually ...

Objective: In pediatric patients, autologous-bone assisted cranioplasty is preferred because the child’s original skull material will become reintegrated. Unfortunately, the replaced bone flap sometimes undergoes bone resorption, which results in structural breakdown necessitating reoperation. We report two children who underwent failure of autologous cranioplsty following decompressive craniec...

PURPOSE In this 10-year longitudinal study we evaluated the amount of mandibular residual ridge resorption for 2 groups of subjects with complete dentures, one group with porcelain artificial teeth and the other with acrylic resin teeth. METHODS One hundred and nine patients who had undergone ridge extension procedures with skin graft and prosthetic rehabilitation with porcelain or acrylic re...

OBJECTIVE To assess the clinical outcome of crushed cartilage grafts used to conceal contour irregularities in rhinoplasty. METHODS We reviewed the medical records of 462 patients in whom crushed autogenous cartilage grafts were used, selected from a total of 669 patients in whom rhinoplasty procedures were performed at our institution between June 1, 1999, and June 1, 2006. The grafts were u...

Temporomandibular joint ankylosis is the most common cause of facial deformity.1-4The main etiology TMJ include trauma and infection3,5.TraditionallyTemporomandibular Ankylosis patients had been managed with different treatment options including Gap arthoplasty6,Interpositiongap arthroplasty ,distraction osteogenesis total replacement.To prevent reankylosis interposition fascia or muscle docume...

The healing of critical sized segmental defects is an ongoing clinical problem. No method has achieved pre-eminence. The Masquelet technique is a relatively new innovation involving the induction of a fibrous tissue membrane around the bone defect site taking advantage of the body's foreign body reaction to the presence of a polymethylmethacrylate (PMMA) spacer. The aim of this study was to inv...

PURPOSE The preferred material for bone augmentation beyond the envelope of skeletal bone is the bone block graft, due to its dimensional stability. We evaluated the necessity of rigid fixation for the bone block graft, and compared the bone regeneration and volume maintenance associated with grafting using a synthetic hydroxyapatite block (HAB) and an autogenous bone block (ABB) without rigid ...

PURPOSE Autogenous bones are frequently used because of their lack of antigenicity, but good osteoconductive and osteoinductive properties. This study evaluated the biological behavior of perforated and nonperforated cortical block bone grafts. METHODS Ten nonsmoking patients who required treatment due to severe resorption of the alveolar process and subsequent implant installation were inclu...