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The pulpal response to citric acid in cats
Author(s) -
Ryan P. C.,
Newcomb G. M.,
Seymour G. J.,
Powell R. N.
Publication year - 1984
Publication title -
journal of clinical periodontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.456
H-Index - 151
eISSN - 1600-051X
pISSN - 0303-6979
DOI - 10.1111/j.1600-051x.1984.tb01311.x
Subject(s) - cats , citric acid , dentistry , medicine , chemistry , biochemistry
Citric acid conditioning of dentine has been proposed as an efficacious treatment for promoting re‐attachment after periodontal surgery. This study investigated the pulpal reactions to periodontal surgery combined with citric acid (pH 1) demineralization of exposed dentine for 3 min. 9 cats were used as the experimental animals, with each cat providing 1 negative and 1 positive control and 2 experimental canine teeth. Evaluation was over 3 observation periods, with 3 cats in each period being sacrificed at 4, 21 and 83 days. Positive control teeth, which underwent periodontal surgery combining the removal of approximately 3 mm 2 of labial bone and vigorous root planning of the exposed root surfaces, displayed mild to moderate pulpal reactions during the short‐ and intermediate‐term periods and only mild to no reactions in the long‐term period. The addition of citric acid demineralization, however, resulted in 5 experimental teeth (28%) becoming abscessed or totally necrotic in the intermediate‐ and long‐term periods. At 21 days, the frequency of adverse pulpal responses to surgery and citric acid conditioning was significantly ( p <0.05) greater than to surgery alone. Although 4 experimental teeth were relatively uninflamed at the long‐term period of observation, all showed irritational dentine formation. Penetration of exposed dentinal tubules by plaque bacteria was observed only in the citric acid treated teeth.