牛の右下顎第三大臼歯の歯牙分割を利用した口腔内立位抜去術

Standing Intraoral Extraction of the Right Mandibular Third Molar Tooth in a Cow Utilizing Tooth Sectioning.

抄録

2歳のホルスタイン雌牛が，右下顎第三大臼歯の先端歯部感染症で大学教育機関を受診した．口腔内での立位抜歯を試みたが、大臼歯を無傷で取り出すことができなかった。そこで，歯牙分割術を行い，患部の大臼歯を抜去した。抜歯後3ヶ月、雌牛は完全に回復し、抜歯部位も治癒した。著者らの知る限り、これは歯牙分割法を用いた牛の抜歯に関する初めての記述である。この症例は、先端歯に感染した牛の抜歯のための代替技術を説明するものである。この症例の臨床的、診断的、および治療的特徴は、臨床家が将来的に同様の症例にアプローチする際の参考になるであろう。

A 2-year-old Holstein heifer presented to a university teaching hospital with an apical tooth infection of the right mandibular third molar. A standing oral extraction technique was attempted for tooth removal; however, the molar could not be delivered intact. A tooth sectioning technique was performed, and the affected molar was successfully delivered. Three months postextraction, the heifer had fully recovered, and the extraction site had healed. To the authors' knowledge, this is the first description of a tooth extraction in a cow using a tooth sectioning technique. This case describes an alternative technique for tooth removal in cattle with an apical tooth infection. The clinical, diagnostic, and therapeutic features of this case may be helpful to clinicians when they approach similar cases in the future.