Cutress T W
J Periodontol. 1976 Nov;47(11):643-50. doi: 10.1902/jop.1976.47.11.643.
A histological investigation was carried out of the periodontia of young and mature sheep obtained from areas where a periodontal syndrome is endemic in sheep flocks. Observations of the incisor periodontia, which are most commonly affected by the syndrome, revealed no evidence of degenerative or pathological changes of alveolar bone, periodontal ligament or cementum compared with the periodontia of control animals. Minor inflammatory changes of the gingivae, associated with small amounts of a filamentous-type dental plaque, were noted in young animals from areas where the disease is endemic. In mature animals moderate to severe inflammatory periodontal disease with deep pocketing was evident together with dental plaque in the sheep from periodontal disease-prone areas; whereas control specimens showed minimal inflammatory response and dental plaque. It was concluded that periodontal disease in sheep can be described as a localized inflammatory disease initially of the gingivae and later of the deeper periodontal disease.
对来自羊群中牙周综合征呈地方性流行地区的幼年和成年绵羊的牙周组织进行了组织学研究。对该综合征最常累及的切牙牙周组织进行观察发现，与对照动物的牙周组织相比，牙槽骨、牙周韧带或牙骨质无退行性或病理变化迹象。在该疾病呈地方性流行地区的幼年动物中，发现牙龈有轻微炎症变化，伴有少量丝状牙菌斑。在来自牙周病高发地区的成年绵羊中，明显存在中度至重度炎症性牙周病并伴有深牙周袋，同时还有牙菌斑；而对照样本显示炎症反应轻微且牙菌斑较少。得出的结论是，绵羊的牙周病可描述为一种局部炎症性疾病，最初累及牙龈，随后累及更深层的牙周组织。
