نتایج جستجو برای: bone thickness
تعداد نتایج: 408475 فیلتر نتایج به سال:
In this study, the effect of cortical thickness variation on the propagation of leaky Lamb waves is investigated by using an axial transmission technique commonly used to characterize long bones. Three Lucite plates with thicknesses of 1, 3, and 5 mm as bone phantoms and one bovine tibia with a cortical thickness of 2 mm were used at various low frequencies. Experimental measurements in bone ph...
Purpose: To compare the post-extraction dimensional changes following extraction alone or extraction plus ridge preservation with an intrasocket mineralized freeze-dried bone allograft and a collagen membrane. 2 purpose is to determine whether there are significant differences between 2 procedures histologically.3 one is that a 4-monts and 6month implant placement time was evaluated to determin...
PURPOSE The purpose of this study was to evaluate the amount of resorption and thickness of labial bone in anterior maxillary implant using cone beam computed tomography with Hitachi CB Mercuray (Hitachi, Medico, Tokyo, Japan). MATERIALS AND METHODS Twenty-one patients with 26 implants were followed-up and checked with CBCT. 21 OSSEOTITE NT® (3i/implant Innovations, Florida, USA) and 5 OSSEOT...
Evaluation of the Cortical Bone Thickness in Lumbar Vertebra Using Ct and Rp Experimental Techniques
The main objective of this paper was to assess the cortical bone thickness of human lumbar vertebra, through Computed Tomography (CT) images by using radiology reading software (iQ-VIEW), image processing software (ScanIP) and the rapid prototyping (RP) experimental methodology. The study here presented focus sixteen postmenopausal patients from the North of Portugal, with age between 50 and 85...
PURPOSE This study aimed to evaluate the effect of the placement of wide-diameter implants on bone stress concentrations and marginal bone loss in the first molar region. Study hypotheses held that increasing implant diameter would decrease peri-implant bone stress levels, but that statistically significant reductions in clinical bone loss would either (1) not be observed for any implant diamet...
objective: alveolar ridge preservation in patients with inadequate bone volume is one treatment option for successful implant placement and can be done by using bone graft materials. on the other hand, ceno bone has been recently produced by hamanand saz baft kish co. as a bone bioimplant of allograft origin. this study aimed to assess the clinical, histologic and histomorphometric results of b...
Background: In order to evaluate bone induction and repair in cranial bone defects by the use of combination of Octacalcium Phosphate/Bone Matrix Gelatin (OCP/BMG), this study was conducted. Materials and Methods: We used 40 young male Sprague dawley rats (5-6 weeks age). A full thickness standardized trephine defect, 5mm in diameter, was made in the rat parietal bone and OCP combined with BMG ...
BACKGROUND Epimedii herba is one of the most frequently used herbs in formulas that are prescribed for the treatment of osteoporosis in China and its main constituent is Epimedium pubescen flavonoid (EPF). However, it is unclear whether EPF during chronic exposure to cigarette smoke may have a protective influence on the skeleton. The present study investigated the effect of EPF on bone mineral...
Introduction: Reconstruction of the oral cavity witha flap design containing the buccal mucosa and buccinator muscle but excluding the facial artery and vein is the topic of these case reports. Case Reports: This article uses random pattern vertically oriented partial thickness buccinator myomucosal flap for intraoral reconstruction in two cases. The first was for lining the mandibular anterior...
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