Histopathological Changes of the Periodontium and the Pulp of Teeth in the Area of Experimental Fracture of the Upper Jaw
https://doi.org/10.18499/2225-7357-2017-6-2-68-74
Abstract
The aim of the study was to evaluate the experimental histopathological changes in the periodontium and the dental pulp, located in the area of the upper jaw fracture. Material and methods. 28 adult guinea pigs were included in experimental-morphological study., Segmental fractures of the upper jaw by Le Fort I were modeled in animals by sawing the upper jaw with intraoral access to the front segment (with damage to the neurovascular infraorbital bundles), right and left lateral segments with interdental cross-sections (without damage of the neurovascular infraorbital bundles). In the control group were intact animals. The results of the study were processed using descriptive statistics. Results. Periodontium and the teeth pulp located in the fracture of the upper jaw undergo inflammatory and dystrophic changes. In the frontal incisors with fractures of the upper jaw with damage of neurovascular infraorbital bundles, these changes finish in a pulp necrosis of all investigated teeth by 28 days. The pulp necrosis occurred in 16 (9.5%) of 168 chewing teeth in fracture of the upper jaw, which indicates a high compensatory-adaptive possibilities of the pulp. Conclusions. Intact teeth in the fracture line of the upper jaw in most cases don’t complicate the healing, and can be saved after removal of the pulp.
About the Authors
S. V. Sirak
Stavropol State Medical University, Stavropol, Russia
Russian Federation
Russian Federation
E. V. Shchetinin
Stavropol State Medical University, Stavropol, Russia
Russian Federation
Russian Federation
I. V. Koshel'
Stavropol State Medical University, Stavropol, Russia
Russian Federation
Russian Federation
T. L. Kobylkina
Stavropol State Medical University, Stavropol, Russia
Russian Federation
Russian Federation
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Review
For citations:
Sirak S.V., Shchetinin E.V., Koshel' I.V., Kobylkina T.L. Histopathological Changes of the Periodontium and the Pulp of Teeth in the Area of Experimental Fracture of the Upper Jaw. Journal of Anatomy and Histopathology. 2017;6(2):68-74. (In Russ.) https://doi.org/10.18499/2225-7357-2017-6-2-68-74
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