A three-dimensional finite element analysis of stress distribution in mandibular FPDs with different length pontics.
- Author:
Li-jin YAN
1
;
Hong-chen LIU
;
Lu BAI
;
Yan-rong WANG
Author Information
- Publication Type:Journal Article
- MeSH: Dental Stress Analysis; Denture, Partial, Fixed; Finite Element Analysis; Humans; Mandible
- From: Chinese Journal of Stomatology 2004;39(2):133-135
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo investigate the stress distribution in the mandibular fixed partial denture (FPD) by changing the length of pontics.
METHODSBased on a 3-DFE model of the mandibular FPD, we analyzed the stress distribution in the mandibular FPDs by loading the same level force at pontics with different lengths that were 2 to 4 times of normal length.
RESULTSThe distribution trends of the stresses in the mandibular FPDs with differently elongated pontics were similar, but the highest von Mises stress in the bridge was enlarged.
CONCLUSIONDamages may develop in the mandibular FDP, when the length of the pontic is longer than 3 times of normal length.
