Skeletal changes after experimentally displaced condylar process fracture in growing rats

Journal of Cranio-maxillo-facial Surgery : Official Publication of the European Association for Cranio-Maxillo-Facial Surgery
Vanessa C B TeixeiraJoão Gualberto C Luz

Abstract

Fractures of the mandibular condyle are common. A potential for growth disturbances in young individuals has been reported; however, there are few experiments studying such consequences. Skeletal changes after fracture of the condyle in the growing period were analysed in this study. Fifty young Wistar rats weighing 100g were used. Under general anaesthesia unilateral fracture dislocations of the condylar process were induced surgically in the experimental group (n=25), while only surgical access was performed in the sham-operated group. The animals were sacrificed at 3 months of age. The mandibles were disarticulated, and radiographs were taken (axial skulls and lateral hemimandibles). Cephalometric evaluations were made using a computer system. Statistical tests were applied between groups and contralateral sides in each group. There were atrophy and degenerative change of the fractured condylar process. There was also a significant difference in the height of the mandibular body and in the length of anterior and posterior maxilla. It was concluded that an experimental fracture of the mandibular condyle during the growing period in rats induced degenerative changes of the condyle as well as an asymmetry of the mandible, affec...Continue Reading

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Citations

Dec 2, 2014·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·Leandro Giuseppim ToledoJoão Gualberto C Luz
Mar 21, 2012·International Journal of Oral and Maxillofacial Surgery·Y HuC Yang
May 31, 2007·Annals of Anatomy = Anatomischer Anzeiger : Official Organ of the Anatomische Gesellschaft·Peter ProffWinfried Harzer
Jul 25, 2009·European Journal of Oral Sciences·Masayoshi YokoyamaKeiichi Sasaki
Oct 22, 2016·Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology·Siying LiuYin Ding
Mar 31, 2009·Journal of Dental Research·M NakanoK Tanne
Jul 14, 2012·Brazilian Oral Research·Fernanda Engelberg Fernandes GomesJoão Gualberto de Cerqueira Luz
Mar 30, 2011·Acta Cirúrgica Brasileira·Lucimar RodriguesJoão Gualberto de Cerqueira Luz
Mar 31, 2012·Acta Cirúrgica Brasileira·Samantha Cristine Santos Xisto Braga CavalcantiJoão Gualberto de Cerqueira Luz
Apr 21, 2009·Acta Cirúrgica Brasileira·Danielli Zamora CruzJoão Gualberto de Cerqueira Luz
May 30, 2013·Plastic and Reconstructive Surgery·Darren M SmithJoseph E Losee

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