CLINICAL AND HISTOLOGICAL EVALUATION OF ACRYLIC RESIN IN THE FRACTURE OF THE MANDIBLE AND MAXILLA AND SEPARATION OF MANDIBULAR SYMPHISIS IN DOGS AND CATS

Ciência Rural

Venturini, Michèle Alice Françoise Anita¹  Gioso, Marco Antonio²  Venceslau, Alexandre⁴  Correa, Herbert Lima¹  Vianna, Regina Suplicy³  Araújo, Vera Cavalcanti⁴ 

[1] Centro Odontológico Veterinário;Universidade de São Paulo, São Paulo, Brasil;Universidade Bandeirante de São Paulo;Universidade de São Paulo

关键词: acrylic resin;    fracture;    mandible;    maxilla;    dog;    cat;   

DOI  :  10.1590/S0103-84782001000200016

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Ciencias Rurais

【 摘 要 】

This paper was performed in two phases. In the first one, the stability of the acrylic resin over the teeth of dogs, without enamel acid conditioning, the clinical and histological reaction on the gingiva were analyzed in periods of 1, 3, 7, 14, 21 and 30 days. The second phase was conducted in 20 dogs and 10 cats, with acid etching technique. The resin was used in the rostral fractures to the distal roots of the lower first molar and upper fourth premolar, as well as in the separation of the symphisis. The results of the first phase indicated that even without the acid etching technique, the acrylic resin remained fixed over the teeth, although a higher volume of resin was needed, thus inducing more areas of ulceration on the lips, gingiva and tongue. This phase also demonstrated that the sulcular gingival adhesion epithelium remained attached to the teeth. Gingivitis, ulceration on the gingiva, tongue and alveolar mucosa were also observed. The histologic analyses mainly showed ulceration of the gingival epithelium. In the second phase all animals featured clinical bone healing in the site of fracture, as well as gingivitis and ulceration. Periodontitis was found in two animals whose resin was not removed up to four and twelve months after application of the acrylic resin. The results also showed that the method can be used in fractures rostral to the distal roots of upper fourth pre-molar an first lower molar.

【 授权许可】

CC BY-NC