Aitchison G U, Spence J A
J Comp Pathol. 1984 Apr;94(2):285-300. doi: 10.1016/0021-9975(84)90047-1.
Heads from 478 aged sheep of a predominantly hill breed population were examined in detail for evidence of dental disease, using both soft and hard tissue measurements around incisor and cheek teeth. Almost 60 per cent of this population (all over 2 1/2 years of age and with a mean age between 7 and 8 years) had either loose or missing teeth. Malalignment of cheek teeth and/or incisors was also common. Pocketing was seen in 87 per cent of the population, and was significantly correlated with tooth looseness. There was also a significant relationship between incisor and specific cheek tooth pocket depths. Whilst local alveolar bone loss was found, it was not a reflection of more general skeletal deterioration. The survey confirms the high incidence of broken mouth in the national flock and shows that wherever incisor problems occur there is a likelihood that cheek tooth disease is also present, a relationship not readily appreciated clinically.
对478只主要为山地品种的老龄绵羊的头部进行了详细检查，以寻找牙齿疾病的证据，采用了切齿和颊齿周围软组织和硬组织测量方法。该群体中近60%（均超过2.5岁，平均年龄在7至8岁之间）存在牙齿松动或缺失的情况。颊齿和/或切齿排列不齐也很常见。87%的羊出现了牙周袋，且与牙齿松动显著相关。切齿和特定颊齿牙周袋深度之间也存在显著关系。虽然发现了局部牙槽骨丧失，但这并非更普遍骨骼退化的反映。该调查证实了全国羊群中豁嘴的高发病率，并表明无论何处出现切齿问题，都有可能同时存在颊齿疾病，这种关系在临床上并不容易被认识到。
