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短鳍灰鲭鲨牙髓腔的口腔内影像学研究()。

Intraoral Radiographic Study of the Pulp Cavity of the Shortfin Mako Shark ().

机构信息

Veterinary Dental Center Sorriso Animal, São Paulo, Brazil.

Doctor by Faculdade de Medicina Veterinária e, Zootecnia of Universidade de São Paulo - FMVZ USP, São Paulo, Brazil.

出版信息

J Vet Dent. 2024 Sep;41(5):399-403. doi: 10.1177/08987564231226163. Epub 2024 Jan 31.

Abstract

The shortfin mako shark () is a large pelagic predator that inhabits coastal and ocean waters. It has several teeth arranged in rows that run from the rostral to the lingual face. These teeth are in several stages of maturation, where the teeth closest to the rostral face are more mature and functional and the teeth closest to the lingual face are still in development. The tooth supply of the shark is unlimited throughout its life. The mechanism of tooth replacement follows that, when the front teeth are discarded physiologically, the posterior teeth replace it. This study us used a head and dental arch of Intraoral radiographs were obtained with the aim to show details of the pulp cavity. The study concluded that the pulp diameter varies according to the stage of dental maturation.

摘要

短鳍灰鲭鲨( )是一种大型远洋捕食者,栖息于沿海水域和海洋水域。它的嘴中有几排牙齿,从吻部延伸到舌面。这些牙齿处于几个成熟阶段,最靠近吻部的牙齿更加成熟和功能齐全,而最靠近舌面的牙齿仍在发育中。鲨鱼的牙齿供应在其一生中是无限的。牙齿替换的机制是,当前面的牙齿生理性脱落时,后面的牙齿会替代它。本研究使用了一个头部和牙弓,使用口腔内射线照相术来显示牙髓腔的细节。研究得出结论,牙髓直径根据牙齿成熟阶段而变化。

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