Investigation on the relationship of occlusal force to formation of wedge-shaped defects.
- Author:
Qing ZHANG
1
;
Jiade WANG
;
Ping LI
;
Yan ZENG
;
Chunlian WANG
Author Information
- Publication Type:Journal Article
- MeSH: Adult; Aged; Bite Force; Female; Humans; Male; Middle Aged; Tooth Abrasion; etiology
- From: Chinese Journal of Stomatology 2002;37(2):109-111
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo clinically investigate and identify the occlusal force as one of factors relative to formation of wedge-shaped defects.
METHODS123 subjects, selected from a group of middle-aged and elderly people in an urban area were divided into four groups: control, light, middle and severe group according to the severity of wedge-shaped defects. Cuspid, first and second premolars, and first molar in maxilla were examined for occlusal force by occlusometer, and the peak value of occlusal contact strain on every maxillary tooth was studied by photocclusion.
RESULTSSignificant reduce of occlusive force in the defected teeth was found than that of in the control teeth. The occlusal contact strain of first premolars with defects by photocclusion was statistically increased. The relative occlusal contact strain of first premolars and first molar of defects was higher than that of their proximate teeth.
CONCLUSIONOcclusal force could have relation to the formation of wedge-shaped defects.
