Thickness of the remaining enamel after the preparation of cingulum rest seats on maxillary canines.
OBJECTIVE
This study evaluated the level of tissue removal that takes place on enamel and dentin during cingulum rest seat preparation.


METHODS
A quantitative evaluation of the thickness of the remaining enamel of cingulum seat preparations to receive removable partial denture rests was carried out in 20 maxillary canines with a light optical microscope.


RESULTS
Thirty percent of the preparations were overextended into dentinal tissue, and 85% had depths that were insufficient to receive rests.
School of Dentistry, University of São Paulo City, Brazil.
A L
AL
Zanetti
M A
MA
Mengar
M D
MD
Novelli
D C
DC
Laganá
D003481:Cuspid; D003743:Dental Enamel / Q000033:anatomy & histology*; D006801:Humans; D008437:Maxilla; D019231:Tooth Preparation, Prosthodontic / Q000379:methods*