Mehran Bahrami

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BACKGROUND AND AIMS In contrast to prepared natural dentin abutments,little is known concerning factors influencing the retention of fixed prostheses cemented to implant abutments. The aim of this study was to investigate the effect of im-plant abutment height on the retention of single castings cemented to wide and narrow platform implant abutments. (More)
Many clinical studies and literature reviews have suggested that bar and ball attachments in maxillary and mandibular implant-supported overdentures (ISOs) should be indicated only when there is sufficient interocclusal space (IOS; minimum = 30 mm). The aim of this clinical report was to present the prosthetic rehabilitation of a patient with adenoid cystic(More)
A 61-year-old female patient with adenoid cystic carcinoma (ACC) of the right maxilla and Angle class II division 1 malocclusion had received a subtotal maxillectomy in right side and used a conventional clasp-retained obturator. After implants placement, a maxillary interim immediate obturator (IIO) and then a definitive obturator using six endosseous(More)
OBJECTIVES This finite element method study aimed to compare the amount of stress on an isolated mandibular second premolar in two conventional reciprocal parallel interface designs of removable partial dentures (RPDs) and the same RPD abutment tooth (not isolated). MATERIALS AND METHODS A Kennedy Class 1, modification 1 RPD framework was simulated on a(More)
PURPOSE Long-term success of metal ceramic restorations depends on metal ceramic bond strength. The purpose of this study was to determine whether recasting of base-metal alloys has any effect on metal ceramic bond strength. MATERIALS AND METHODS Super Cast and Verabond base-metal alloys were used to cast 260 wax patterns. The alloy specimens were equally(More)
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