Literature Review: Partially Denture Arches Main Classifications

Several classifications for the partially denture arches have been proposed since the begining of the past century; however they are still used to date. This literature review revealed an antithesis among authors due to various parameters involved in the attempt to include all the requirements of a classification. With regards to variations between mechanical and topographic aspects, the position of retainers remains rather confusing. In order to improve the understanding of such matter, an analysis of all aspects relating to the main classifications was carried out. It is clear that no single classification is complete for prosthetic diagnosis and treatment planning. The teaching of such classifications ought to be encouraged in dental schools as they can be a great ally in assessing difficulties in the initial stages of the prosthetic treatment, which optimizes the planning of removable partial dentures (RPD). Considering the information obtained, it is clear that a minimum of three classifications should be used concomitantly: a mechanic-functional, a topographic and a third including characteristics of stress distribution along the teeth and the residual muco-alveolar structures. The methods involved in the systems of classification are key elements for case planning and discussion as well as for research and development.