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KMID : 0893420140150040557
Journal of Veterinary Science
2014 Volume.15 No. 4 p.557 ~ p.561
Determining the age of cats by pulp cavity/tooth width ratio using dental radiography
Park Kyoung-Sun

Ahn Jae-Sang
Kang Sun-Mee
Lee Eui-Ri
Kim Soo-Hyun
Park Sang-Wan
Park Sung-Won
Noh Hyun-Woo
Seo Kang-Moon
Abstract
The purpose of this study was to evaluate the effect of age on the ratio of pulp cavity/tooth width (P/T ratio) in healthy cats. The dental radiographs of 32 cats (16 males and 16 females) were generated with a digital dental X-ray unit with the animals under general anesthesia. Standardized measurement of the canine teeth was performed by drawing a line on the radiograph perpendicular to the cementoenamel junction (CEJ) of the tooth. There was an inversely proportional correlation between chronological age and the P/T ratio. Moreover, a strong Pearson squared correlation (¥ã2 = 0.92) was identified by the curved regression model. No significant differences in the P/T ratio based on gender or breed were found. These results suggest that determination of age by P/T ratio could be clinically useful for estimating the chronological age of cats.
KEYWORD
age determination, age estimation, cats, dental radiograph, pulp cavity
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