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Primate pulp response to an ultraviolet light cured restorative material
Author(s) -
Stanley H. R.,
Myers C. L.,
Heyde J. B.,
Chambfrlain J.
Publication year - 1972
Publication title -
journal of oral pathology and medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 83
eISSN - 1600-0714
pISSN - 0904-2512
DOI - 10.1111/j.1600-0714.1972.tb01909.x
Subject(s) - calcium hydroxide , curing (chemistry) , pulp (tooth) , dentistry , ultraviolet light , materials science , composite number , composite material , medicine , chemistry , optoelectronics
. The present toxicity study investigated the pulpal response of an experimental u.v. light cured composite product as a Class V restorative material. Seventy‐eight Class V cavities were prepared on the buccofacial surfaces of cynomolgus monkeys using a high‐speed, air‐water spray cutting technique. The experimental product was compared to a self‐curing composite resin and a zinc oxide and eugenol formula. The animals were sacrificed at 3, 14 and 60 days. All categories exhibited about the same minimal degree of pulpal response at the three‐day post‐operative interval. However, focal hemorrhage occurred in 80% of the u.v. light cured resin category. After 60 post‐operative days, the u.v. cured resin specimens presented persistent or increasing responses as compared to the specimens treated with either a self‐curing composite resin or zinc oxide and eugenol. Should this u.v. light cured resin be used as a restorative material such as employed in this study, a calcium hydroxide liner is suggested in order to minimize the pulpal responses observed 60 days post‐operatively.