The effect of repeated microwave irradiation on the dimensional stability of a specific acrylic denture resin.

Purpose: To determine the dimensional stability of a poly(methyl methacrylate) (PMMA) acrylic resin when subjected to multiple sessions of repeated microwave irradiation at power settings of 700 and 420 W.

Materials And Methods: Twenty standardized denture bases were fabricated using a PMMA resin. Points of measurement were marked on each denture base with a standardized template, and the distances between points were recorded using a digital microscope.

Measuring mobility of 2 dental implant fixtures of different configurations: an in vitro study.

Objectives: To our knowledge, it has not as yet been determined if mini-dental implants can be used as a long-term treatment method compared to endosseous standard root-form dental implant fixtures. This in vitro study investigates the stability of 2 different implants, 1 mini-dental implant and 1 endosseous standard root form dental implant, under lateral forces.

Methods: There were 2 different screw-type dental implants with the O-ring/ball attachment prosthetic heads used.

Retrofitting a cast dowel-core on salvaged dental implants.

Dental implant screw fracture involves attempting to retrieve the screw fragment or, as an alternative, attempting to salvage the dental implant. Circumstances that do not allow for screw retrieval require a solution in which the internal configuration of the dental implant can provide for a custom direct dowel fabrication. The proposed technique is to retrofit the fabrication of a custom cast dowel-core and provisional use of a direct procedure, which provides accuracy of fit, retention, and ease of production.

One-piece dowel-crown on single endosseous implants.

The unitized (one-piece) dowel-crown technique described in this article uses routine clinical and laboratory procedures, minimizes clinical appointments, and provides a simplified prosthetic restoration for a single dental implant.