The prosthetic classification of partially edentulous dental arches and its use for treatment planning

Tibor Fábián, Péter Hermann, Pál Fejérdy

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Major goal of the "prosthetic classification" (Fábián and Fejérdy 1979) is to enhance treatment planning and denture designing procedures. With regard to this aspect partially edentulous arches can be rendered to classes as follows: Class 1A: one or more primary fulcrum lines (straight line drawn between two teeth adjacent to the edentulous space) may exist; but none of the primary fulcrum lines is going to become a factual rotation axis when a denture is inserted. No force of rotation will be generated and the denture may not settle. In this class of arches fixed dentures are recommended. Class 1B: one or more fulcrum line(s) may exist, which may become a factual rotation axis when a denture is inserted. The rotational forces, however, will not be very powerful, so that the settling of the denture can be equalized (i.e. compensated due to multiple abutments). In this class of arches fixed dentures may be recommended. Class 2A: only one primary fulcrum line exists, which may become a factual rotation axis when a denture is inserted. Rotating around this factual rotation axis the denture may settle in one direction. In this class of arches RPD is recommended and the baseplate of RPD can be moderately reduced. Class 2A/1: only one fulcrum line exists, which may become a factual rotation axis when a denture is inserted. Rotating around this rotation axis the denture may settle in one direction. This class is a special case (subclass) of class 2A characterized by very few (maximum one or two) remaining teeth. In this class of arches RPD is recommended and the baseplate of RPD can not be reduced. Class 2B: Several primary fulcrum lines may exist, one of which may become a factual rotation axis when a denture is inserted. Rotating around this rotation axis the denture may settle in one direction. In this class of arches RPD (combined with or without fixed dentures) are recommended and the baseplate of RPD can be moderately reduced. Class 3: one or more primary fulcrum line(s) may exist; from which one or more may become a factual rotation axis when a denture is inserted. Rotating around this/these rotation axis the denture will tip upward on one side and downward on the other side (i.e. two-directional rotary movements occur). In this class of arches RPD is recommended, the baseplate of RPD can not be reduced and, resilient type telescopes (i.e. delayed type dental support) should be used.

Original languageEnglish
Title of host publicationDentures
Subtitle of host publicationTypes, Benefits and Potential Complications
PublisherNova Science Publishers, Inc.
Pages1-13
Number of pages13
ISBN (Print)9781619422803
Publication statusPublished - Dec 1 2012

ASJC Scopus subject areas

  • Dentistry(all)

Fingerprint Dive into the research topics of 'The prosthetic classification of partially edentulous dental arches and its use for treatment planning'. Together they form a unique fingerprint.

  • Cite this

    Fábián, T., Hermann, P., & Fejérdy, P. (2012). The prosthetic classification of partially edentulous dental arches and its use for treatment planning. In Dentures: Types, Benefits and Potential Complications (pp. 1-13). Nova Science Publishers, Inc..