A biometric guide to prosthetic tooth positioning investigated in subjects with Class II division 2 incisor relationships.
A biometric guide for positioning of the maxillary central incisors in complete dentures is the incisor-incisive papilla distance. This distance was compared in dentate subject with either Class I or Class II/2 incisor relations. Maxillary casts were orientated parallel to the occlusal plane on an xy table, connected to a movable vertical arm. The distance from the posterior edge of the papilla to the labial incisor surface was measured. Results showed a mean difference of 2 mm between the groups, significant at the P < or = 0.001 level, however this distance would not appear to invalidate the conventional biometric guideline of 10 mm.
Agarwal
A
A
Department of Prosthetic Dentistry, Eastman Dental Institute, 256 Gray's Inn Road, London WC1X 8LD, U.K.
Howlett
J A
JA
Howell
P G
PG
D000328:Adult; D001699:Biometry / Q000295:instrumentation; D002508:Cephalometry; D003725:Dental Articulators; D003766:Dental Occlusion; D003779:Denture Design / Q000295:instrumentation*; D003827:Denture, Complete, Upper; D006801:Humans; D007180:Incisor / Q000473:pathology; D008312:Malocclusion, Angle Class II / Q000473:pathology*; D010159:Palate / Q000473:pathology; D013223:Statistics as Topic; D014093:Tooth, Artificial