Pathology of chronic ovine periodontitis

IF 0.8 4区农林科学 Q3 VETERINARY SCIENCES

Pesquisa Veterinaria Brasileira Pub Date : 2022-01-01 DOI:10.1590/1678-5150-pvb-7170

Márcia G.S. Jansen, A. C. Borsanelli, I. Dutra, D. Ubiali

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引用次数: 2

Abstract

ABSTRACT: Periodontitis is an inflammatory process of infectious origin affecting the teeth and their supporting structures, causing significant economic losses and reducing animal welfare. Bacteria in the gingival biofilm are one of the main factors in initiating inflammatory lesions. Bacteria act directly on tissues or indirectly through substances that cause tissue damage. Studies on the etiopathogenesis of periodontitis in Brazilian sheep herds are scarce. The present study aimed to characterize histologically periodontal lesions of culled sheep from the Brazilian breed, Santa Inês. Periodontal lesions, such as periodontal pockets containing plant tissue and bacteria, replacement of the periodontal ligament by connective tissue and inflammatory cells, superficial pustules, hydropic epithelial degeneration, and epithelium hyperplasia, were observed. Submucosal changes were characterized by granulation tissue, edema, swelling of the endothelial cells, bacteria, and predominantly perivascular lymphoplasmacytic inflammatory infiltrate. In the alveolar bone, osteoclastic resorption and bone apposition were observed. This study revealed subacute to chronic inflammation, alveolar bone resorption, and cortical bone apposition in ovine periodontitis. Thus, these findings can contribute to the evolution of knowledge about the etiopathogenesis of ovine periodontitis and, possibly, the development of measures to control the disease.

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绵羊慢性牙周炎的病理分析

摘要:牙周炎是一种感染源性炎症过程，影响牙齿及其支撑结构，造成重大经济损失并降低动物福利。牙龈生物膜中的细菌是引发炎症病变的主要因素之一。细菌直接作用于组织或间接通过物质导致组织损伤。关于巴西羊群牙周炎发病机制的研究很少。本研究旨在描述从巴西品种Santa Inês扑杀的羊的牙周病变组织学特征。观察到牙周病变，如含有植物组织和细菌的牙周袋，被结缔组织和炎症细胞取代的牙周韧带，浅表脓疱，水样上皮变性和上皮增生。粘膜下病变的特征是肉芽组织、水肿、内皮细胞肿胀、细菌，主要是血管周围淋巴浆细胞性炎症浸润。在牙槽骨中观察破骨细胞吸收和骨附着。本研究揭示了绵羊牙周炎的亚急性到慢性炎症、牙槽骨吸收和皮质骨附着。因此，这些发现有助于了解绵羊牙周炎的发病机制，并可能有助于制定控制该疾病的措施。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Pesquisa Veterinaria Brasileira 农林科学-兽医学

CiteScore

1.30

自引率

16.70%

发文量

审稿时长

9-18 weeks

期刊介绍： Pesquisa Veterinária Brasileira - Brazilian Journal of Veterinary Research (http://www.pvb.com.br), edited by the Brazilian College of Animal Pathology in partnership with the Brazilian Agricultural Research Organization (Embrapa) and in collaboration with other veterinary scientific associations, publishes original papers on animal diseases and related subjects. Critical review articles should be written in support of original investigation. The editors assume that papers submitted are not being considered for publication in other journals and do not contain material which has already been published. Submitted papers are peer reviewed. The abbreviated title of Pesquisa Veterinária Brasileira is Pesqui. Vet. Bras.