نتایج جستجو برای: quantity of maxillary bone
تعداد نتایج: 21201773 فیلتر نتایج به سال:
PURPOSE This study was performed to determine the buccal alveolar bone thickness following rapid maxillary expansion (RME) using cone-beam computed tomography (CBCT). MATERIALS AND METHODS Twenty-four individuals (15 females, 9 males; 13.9 years) that underwent RME therapy were included. Each patient had CBCT images available before (T1), after (T2), and 2 to 3 years after (T3) maxillary expa...
Sinus bone grafting with autogenous bone is routinely performed to allow placement of endosseous dental implants. Although numerous maxillary sinuses have been successfully grafted, some complications of this procedure have been reported. These include maxillary sinusitis, resorption, infection and possible failure of grafts, loss of implants after 1-stage surgery, and oroantral fistulae. Only ...
PURPOSE Augmentation of anterior maxillary alveolar bone defects before placement of endosseous implants still poses a clinical challenge. Previous traumatic loss of upper anterior teeth is often concomitant with significant bone loss. The aim of augmentation is to reconstitute as far as possible the original hard tissue contour. This is a prerequisite for later optimal positioning of the denta...
INTRODUCTION The maxillary incisive canal connects the roof of the oral cavity with the floor of nasal cavity and has the incisive and nasal foramina respectively at its two opposite ends. Its close proximity with the anterior incisors affects one's ability to place immediate implants in ideal position. OBJECTIVE To avoid causing complication, variations in their dimensions were studied. MA...
The pterygopalatine fossa (PPF) represents a major pathway of spread of malignancy and infection from the head and neck into the skull base. The ability to precisely locate tumor and infection on CT and MR imaging studies is crucial for performing biopsies and planning treatment. Determining the exact margins of the PPF is problematic, because they are not strictly defined even in the anatomic ...
BACKGROUND Prosthetic rehabilitation of the posterior maxilla with dental implants is often difficult because of proximity to the maxillary sinus and insufficient bone height. Maxillary sinus floor augmentation procedures aim to obtain enough bone with an association between biomaterials and autogenous bone. PURPOSE The purpose of this study was to evaluate histomorphometrically two grafting ...
• Design and simulation by FEM of customized scaffolds fixed to the jaw a dental implant. Distribution stress in crown, implant, scaffold, cortical trabecular bone, strain bone. Influence porosity hole size on The use allows significant reduction stresses peri-implant Teeth loss due periodontal diseases, trauma, or infections often causes dimensional affected maxillary. In patients with reduced...
PURPOSE This study investigated the relationship between the roots of the maxillary molars and the maxillary sinus using cone beam computed tomography (CBCT), and measured the distances between the roots of the maxillary molars and the sinus floor as well as the thickness of the bone between the root and the alveolar cortical plate. MATERIALS AND METHODS The study sample consisted of 83 patie...
it appears that until bone graft has not achieved 100% success, intraradicular diseases remain controversial and therefore, different treatment plans are suggested for them. treating intraradicular diseases depend on many factors: maxillary molars are more prone to bone loss and have worse prognosis. to assess prognosis more carefully these factors should be considered: 1) bone loss: its apical...
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