Herbert Lima Correa

Oral Fractures in Dogs of Brazil — A Retrospective Study

A retrospective study was performed in 100 dogs with 121 mandibular and 21 maxillary fractures. Dogfight (43.0 %) and automobile (12.0 %) trauma were the most common etiologies for fracture. The cause of fracture was unknown in 23.0% of the cases, while pathologic fractures occurred in 13.0 % of cases. Young dogs (< 1-year-old) and dogs > 8-years of age were most affected. Mandibular fractures occurred in 90 dogs (90.0 %), with two dogs (2.2 %) having concurrent maxillary fractures. Maxillary fractures only were diagnosed in 10 dogs (10.0 %). The molar region (47.1 %) was the most commonly affected location for mandibular fracture, followed by fractures of the symphysis and parasymphysis (30.6 %), premolar region (17.4 %), angular process (4.1 %) and vertical ramus (0.8 %). In fractures of the mandibular region, the mandibular first molar tooth was often (85.9%) involved while the canine teeth were involved in 67.5 % of symphyseal and parasymphyseal fractures. The most common fracture of the maxilla was the maxillary bone (52.4 %), followed by the incisive (33.3 %), palatine (9.5 %), and nasal (4.8 %) bones.

Reattachment of Tooth Fragment: An in vitro Study

Canine tooth fracture is common in dogs. Application of an esthetic and durable restoration may be challenging in veterinary dental practice. This study used traditional human dental laboratory methods to evaluate fracture strength of intact dog canine teeth and fractured teeth that had been restored by reattachment of the tooth fragment. The results showed that the teeth restored by reattachment of the tooth fragment supported a test load equal to 45.4 % of the load necessary to fracture intact canine teeth.

Facial trauma in a dog: advantages of the use of computed tomography on diagnostic of caudal fractures of mandible

A multiple mandible fracture was diagnosed in a mixed breed dog. After clinical examination, extra-oral radiographs were used to evaluate the trauma but, a complete visualization of the fractures extension was difficult due to the great of structures of cranium. Then, the computed tomography was accomplished to help and to find all osseous tissues fractured, their exact location, existent fragments and their positions; being superior to the radiograph exam in the accurate diagnosis realized.

ANÁLISE CLÍNICA E HISTOLÓGICA DA UTILIZAÇÃO DA RESINA ACRÍLICA AUTOPOLIMERIZÁVEL NAS FRATURAS DE MANDÍBULA E MAXILA E SEPARAÇÃO DA SÍNFISE MENTONIANA EM CÃES E GATOS

Gioso, Marco Antonio; Suplicy Vianna, Regina; Francoise Anita Venturini, Michele Alice; Lima Correa, Herbert; Venceslau, Alexandre; Cavalcanti Araujo, Vera ANALISE CLINICA E HISTOLOGICA DA UTILIZACAO DA RESINA ACRILICA AUTOPOLIMERIZAVEL NAS FRATURAS DE MANDIBULA E MAXILA E SEPARACAO DA SINFISE MENTONIANA EM CAES E GATOS Ciencia Rural, vol. 31, num. 2, abril, 2001, pp. 291-298 Universidade Federal de Santa Maria Santa Maria, BrasilThis 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.