Showing posts from October, 2012

A Simplified Impression Technique for Distal Extension Removable Partial Dentures

By Elie Daou* | Paul Boulos**

* DDS, MSBM, DESP. Instructor, Dpt of Removable Prosthodontics School of Dentistry, Lebanese University, Beirut, Lebanon.

** DDS, DEA, PhD Director of postgraduate program, Dpt of Removable Prosthodontics Faculty of Dental Medicine, Saint-Joseph University of Beirut

The construction of a removable partial denture in distal extension cases is a delicate procedure since the prosthesis is supported by two different tissues, namely teeth and mucosa. The different resiliency of these supporting tissues may lead to the instability of the prosthesis. This paper describes a functional impression technique that aims to equalize the masticatory load between teeth and edentulous areas thus reducing the instability of the partial denture during function and preserving the residual teeth.
Keywords: Distal extension - dental impression - removable partial denture.

Construction and Use of Mouthguards When in Orthodontic Treatment

By Dr. Derek Mahony

It is widely accepted in the dental community that mouthguards reduce injuries in sport, and the most effective mouthguard is that traditionally made indirectly on a model. These mouthguards are made from an impression of the teeth, soft tissues, and fitted predominantly to the upper teeth.

The prescription of sports mouthguards, to a person who is undergoing orthodontic treatment, is a difficult situation to apply traditional indirect mouthguard construction methods. Traditionally made mouthguards are expensive to produce, very time consuming to fit in the orthodontic practice, and the materials used for indirect traditional mouthguards cannot be easily refitted, by the Orthodontist, or by the patient.