[Application of cephalometric analysis for determination of vertical dimension of occlusion--a literature review].

Introduction: Optimal reconstruction of vertical dimension of occlusion is crucial for functional and physiognomic rehabilitation of edentulous patients. This article is aimed at presenting attitudes and studies on application of cephalometric analysis in obtaining optimal vertical dimension of occlusion. The review of literature presents the studies which analyse the possibilities of cephalometric analysis aimed at improving the clinical methods for vertical dimension of occlusion determination in treatment of edentulous patients.

Roentgencraniometric indicators of the position of the occlusal plane in natural and artificial dentitions.

The angular relationship between the occlusal plane and six variants of Camper's plane used in clinical practice were investigated on 41 lateral cephalometric radiographs. The line A-T1, connecting the lower border of the ala with the upper border of the tragus is recommended in establishing the occlusal plane in patients with a Skeletal Class 2 jaw relationship, the A-T2, running through the middle of the tragus, in patients with a Skeletal Class 1, and the line A-T3, running through the lower border of the tragus in patients with the Skeletal Class 3 jaw relationship.

Bond strength and rupture properties of some soft denture liners.

The bond strength and rupture properties of three soft acrylic liners (Coe-Soft, Coe Super-Soft and Vertex Soft) and two silicone liners (Molloplast-B and Flexibase) were tested immediately after processing and following immersion in water at 37 degrees C for 7 and 90 days. The bond test gave variable results, as some materials partly peeled and then stretched until rupture occurred. After saturation the acrylic liners exhibited an increase in tear resistance, whilst silicone materials deteriorated, in the case of Flexibase to approximately 25% of its original value.

Finite element analysis of fixed prostheses attached to osseointegrated implants.

The effect of defined stresses on cantilevered prostheses attached to osseointegrated implants was assessed by finite element analysis. The effect of stress on a cantilever, consisting of a ductile alloy in contact with a brittle polymer, was demonstrated to be complex. The distribution of applied stresses also influenced the results.

The position of the occlusal plane in dentulous subjects with various skeletal jaw-relationships.

This study was conducted to examine the level and inclination of the occlusal plane in dentulous subjects with various skeletal jaw-relationships with the purpose of finding more reliable guides for locating the occlusal plane in edentulous patients. The investigation was carried out on 140 lateral cephalometric radiographs of young people with natural teeth in the intercuspal position. The sample was divided into three groups according to the skeletal relation of the jaws.