家猫牙尖闭合的年龄。

IF 0.7 4区 农林科学 Q3 VETERINARY SCIENCES
Journal of Veterinary Dentistry Pub Date : 2024-09-01 Epub Date: 2023-12-19 DOI:10.1177/08987564231220682
Dilraj S Goraya, Naomi K Hoyer, Jennifer Kelley, Sangeeta Rao, Mary Nehring, Susan Van de Woude, Jennifer E Rawlinson
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引用次数: 0

摘要

有关猫科动物根尖闭合年龄的数据非常有限。此外,关于雄猫和雌猫根尖闭合年龄的差异也未进行过研究。本研究的目的是确定猫的根尖闭合时间,并确定性别或在牙弓中的位置是否会影响闭合。在这项回顾性描述性研究中,我们每月或每隔数月为 18 只猫拍摄口腔内X光片。其中 9 只为完好无损的雌性猫,9 只为绝育后的雄性猫,研究开始时它们的年龄从 6 个月到 9.4 个月不等,为期 8 个月。对所有犬齿以及下颌前臼齿和臼齿的X光片进行评估,以确定牙尖闭合的年龄。下颌犬齿牙尖在 10 到 12 个月大时闭合,上颌犬齿牙尖在 12 到 14 个月大时闭合。下颌第三和第四前臼齿的中根和远根尖在 8 到 9 个月大时闭合。下颌第一磨牙的中远端根尖在 8 到 8.5 个月时闭合。雌猫犬齿根尖闭合的时间早于雄猫,下颌犬齿根尖闭合的时间明显早于上颌犬齿根尖闭合的时间。这些研究结果表明,雄猫和雌猫的根尖闭合年龄存在明显差异,牙弓中不同牙齿的根尖闭合时间也存在明显趋势。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Age of Dental Apical Closure in Domestic Cats.

Data on the age of apical closure in felines is limited. Moreover, differences in age of apical closure between male and female cats have not been studied. The aim of this study was to determine the timing of apical closure in cats and determine if sex or position in the dental arch affected closure. In this retrospective descriptive study, intraoral radiographs were obtained at monthly or multiple-monthly intervals for 18 cats. Nine were intact females and 9 were neutered males, ranging from 6 to 9.4 months of age at the start of the study which ranged over an 8-month period. Radiographs were evaluated to establish age of apical closure for all canine teeth as well as the mandibular premolar and molar teeth. Mandibular canine tooth apices closed between 10 and 12 months of age and maxillary canine tooth apices closed between 12 and 14 months of age. The mesial and distal root apices of both the mandibular third and fourth premolar teeth closed between 8 and 9 months. The mandibular first molar tooth mesial and distal root apices closed between 8 and 8.5 months. Root apices of canine teeth closed earlier in female cats than in male cats with mandibular canine tooth root apices closing significantly earlier than maxillary canine tooth roots in both sexes. These findings suggest that there are notable differences in age of apical closure between male and female cats and discernible trends in timing of apical closure among teeth in the dental arcade.

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来源期刊
Journal of Veterinary Dentistry
Journal of Veterinary Dentistry VETERINARY SCIENCES-
CiteScore
1.00
自引率
10.00%
发文量
59
期刊介绍: The Journal of Veterinary Dentistry (JOVD) is the official peer-reviewed publication of the Foundation for Veterinary Dentistry. The JOVD provides a continuing education forum for veterinary dental scientists, veterinarians, dentists, and veterinary/dental technicians and hygienists who are engaged in veterinary dental practice. JOVD articles provide practical and scientifically sound information covering not only the medical and surgical aspects, but also specific categories as they relate to clinical practice.
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