Evaluation of resistance form for prepared teeth

Merle H Parker, Kay H. Malone, Ashton C. Trier, Thomas S. Striano

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Resistance form of preparations for which castings were made in a large dental laboratory was evaluated. Each preparation was also evaluated for the placement of grooves. Evaluation of resistance form was done by grasping the casting between thumb and index finger and attempting to roll the uncemented casting off the die with finger pressure. Each preparation was tested for resistance form in all directions (buecal, lingual, mesial, and distal), from a fixed, point of rotation. Evaluation was by tooth groups: incisors, canines, premolar, and molars. The preparations were found to have resistance form in 96% of the incisors, 92% of the canines, 81 % of the premolars and only 46% of the molars. Only nine of 294 preparations evaluated had grooves. Mesial or distal grooves provided resistance to buecal and lingual dislodgment, and buccal or lingual grooves provided resistance to mesial and distal dislodgment.

Original languageEnglish (US)
Pages (from-to)730-733
Number of pages4
JournalThe Journal of prosthetic dentistry
Volume66
Issue number6
DOIs
StatePublished - Jan 1 1991
Externally publishedYes

Fingerprint

Tongue
Tooth
Bicuspid
Incisor
Fingers
Canidae
Dental Laboratories
Cheek
Thumb
Pressure

ASJC Scopus subject areas

  • Oral Surgery

Cite this

Evaluation of resistance form for prepared teeth. / Parker, Merle H; Malone, Kay H.; Trier, Ashton C.; Striano, Thomas S.

In: The Journal of prosthetic dentistry, Vol. 66, No. 6, 01.01.1991, p. 730-733.

Research output: Contribution to journalArticle

Parker, Merle H ; Malone, Kay H. ; Trier, Ashton C. ; Striano, Thomas S. / Evaluation of resistance form for prepared teeth. In: The Journal of prosthetic dentistry. 1991 ; Vol. 66, No. 6. pp. 730-733.
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