Biomechanical considerations screw and cemented implant prostheses

Abstract

The present study aimed to intorduce through a literature review different criteria involved in the selection denture retention system of implants in order to facilitate the choice of dentist. For this search was conducted in PubMed using the terms - "dental implants", "cemented-retained prosthesis", "screwed-retained prosthesis", "biomechanical implant prosthesis". The most relevant articles to the topic, written in English and published between 1986 and 2016 were selected. In the literature there are several longitudinal, clinical and laboratory studies addressing partial or total rehabilitation with dental implants. The retention system of the prosthesis, cemented or screwed, has advantages and disadvantages and, despite not interfere with successful treatment, the selection of the most appropriate method still represents great difficulty among dental professionals, especially because it involves a number of factors such as passivity, reversibility, occlusion, aesthetics. The choice of the prosthetic implant retention mode should be performed by a prior diagnosis and treatment planning, assessing individual patient characteristics, their expectations and the advantages and disadvantages of each system.