Evaluation of surface detail reproduction, dimensional stability and gypsum compatibility of monophase polyvinyl-siloxane and polyether elastomeric impression materials under dry and moist conditions.

Objectives: This in vitro study was designed to compare polyvinyl-siloxane (PVS) monophase and polyether (PE) monophase materials under dry and moist conditions for properties such as surface detail reproduction, dimensional stability, and gypsum compatibility.

Materials And Methods: Surface detail reproduction was evaluated using two criteria. Dimensional stability was evaluated according to American Dental Association (ADA) specification no.

A simplified method of preventing implant hex drive from aspiration or accidental swallowing during stage two implant recovery.

Objectives: To prevent accidental ingestion of implant hex dive.

Materials And Methods: Dental floss which is used to stabilize the hex drive is tied to the operator's finger ring to overcome sudden aspiration of fallen instrument.

Results: It showed excellent grip of the instrument during stage two uncover time and also saved operators time.

Comparative Evaluation of Metal-ceramic Bond Strengths of Nickel Chromium and Cobalt Chromium Alloys on Repeated Castings: An In vitro Study.

Background: Recasting the base metal alloys is done as a routine procedure in the dental laboratories whenever there is casting failure or to decrease the unit cost of a fixed partial denture. However, this procedure may affect the metal ceramic bond. Furthermore, it is unclear, as to which test closely predicts the bond strength of metal-ceramic interface.

Evaluation of initial stability and crestal bone loss in immediate implant placement: An in vivo study.

Objectives: (1) To measure the crestal bone levels around implants immediately, and one month, three months, and six months after immediate implant placement, to evaluate the amount of bone level changes in six months. (2) To measure the initial stability in immediate implant placement.

Materials And Methods: Ten patients were selected and a total of ten implants were placed in the immediate extraction sites.

HIV Associated Intra-oral Burkitt's Lymphoma: A Case Report.

Immunodeficiency associated Burkitt's lymphoma is the most common in patients with HIV/AIDS. It accounts for 30-40% of Non-Hodgkin's lymphomas and may be the first sign of underlying immunosuppression. This report illustrates a case of Burkitt's lymphoma of maxillary alveolar ridge, which was the first manifestation in an HIV positive patient, with a brief discussion on clinicopathologic features, aetiopathogenesis and treatment.