13 research outputs found

    Correlation of left mandibular third molar development and chronological age in children and adolescents

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    ์ด๋ฒˆ ์—ฐ๊ตฌ์˜ ๋ชฉ์ ์€ ํ•˜์•… ์ขŒ์ธก ์ œ3๋Œ€๊ตฌ์น˜์˜ ์„ํšŒํ™” ๋‹จ๊ณ„์— ๋Œ€ํ•œ ํ•œ๊ตญ์ธ์˜ ์ฐธ๊ณ  ์ž๋ฃŒ๋ฅผ ์ œ๊ณตํ•˜๊ณ , ํ•˜์•… ์ขŒ์ธก ์ œ3๋Œ€๊ตฌ์น˜์˜ ์„ํšŒํ™” ๋‹จ๊ณ„์™€ ์—ฐ๋Œ€๊ธฐ์  ์—ฐ๋ น ์‚ฌ์ด์˜ ์ƒ๊ด€๊ด€๊ณ„๋ฅผ ๋ถ„์„ ๋ฐ ์น˜์•„ ๋ฐœ์œก ๋‹จ๊ณ„๋ฅผ ์ด์šฉํ•˜์—ฌ ์—ฐ๋ น์„ ์˜ˆ์ธกํ•  ์ˆ˜ ์žˆ์„์ง€ ์•Œ์•„๋ณด๋Š” ๊ฒƒ์ด๋‹ค. 7 โ€“ 23์„ธ ์‚ฌ์ด์˜ ๊ฑด๊ฐ•ํ•œ ํ•œ๊ตญ์ธ 1653๋ช…์˜ ํŒŒ๋…ธ๋ผ๋งˆ ๋ฐฉ์‚ฌ์„  ์‚ฌ์ง„์„ ์ด์šฉํ•˜์—ฌ Demirjian ๋“ฑ์˜ ๋ฐฉ๋ฒ•์œผ๋กœ ํ•˜์•… ์ขŒ์ธก ์ œ3๋Œ€๊ตฌ์น˜์˜ ๋ฐœ์œก ๋‹จ๊ณ„๋ฅผ ํ‰๊ฐ€ํ–ˆ๋‹ค. ์ œ3๋Œ€๊ตฌ์น˜์˜ ์„ํšŒํ™” ๋‹จ๊ณ„๋Š” ํ‰๊ท  9์„ธ์— ์‹œ์ž‘ํ•˜์˜€์œผ๋ฉฐ ์น˜๊ด€๊ณผ ์น˜๊ทผ์€ ๊ฐ๊ฐ ํ‰๊ท  14์„ธ, 21์„ธ์— ์™„์„ฑ๋˜์—ˆ๋‹ค. ์ œ3๋Œ€๊ตฌ์น˜ ๋ฐœ์œก ๋‹จ๊ณ„ ์ค‘ D๋‹จ๊ณ„์™€ G๋‹จ๊ณ„์— ํ•ด๋‹นํ•˜๋Š” ํ‰๊ท  ์—ฐ๋ น์ด ๋‚จ์„ฑ์ด ์—ฌ์„ฑ๋ณด๋‹ค ๋‚ฎ์•˜์œผ๋ฉฐ, ๊ทธ ์ฐจ์ด๋Š” ํ†ต๊ณ„์ ์ธ ์œ ์˜์„ฑ์„ ๋ณด์˜€๋‹ค. ๊ทธ ์™ธ์˜ ๋ฐœ์œก ๋‹จ๊ณ„์—์„œ๋Š” ๋‚จ์„ฑ๊ณผ ์—ฌ์„ฑ ์‚ฌ์ด์˜ ์œ ์˜๋ฏธํ•œ ์ฐจ์ด๋Š” ์—†์—ˆ๋‹ค. ์ œ3๋Œ€๊ตฌ์น˜์™€ ์—ฐ๋ น ์‚ฌ์ด์—๋Š” ์–‘์˜ ์ƒ๊ด€๊ด€๊ณ„๋ฅผ ๋ณด์˜€์œผ๋ฉฐ, ํŠนํžˆ ๋‚จ์„ฑ์ด ์—ฌ์„ฑ๋ณด๋‹ค ๊ฐ•ํ•œ ์ƒ๊ด€๊ด€๊ณ„๋ฅผ ๋‚˜ํƒ€๋ƒˆ๋‹ค. ์ œ3๋Œ€๊ตฌ์น˜์˜ ๋ฐœ์œก ๋‹จ๊ณ„๋ฅผ ์ด์šฉํ•˜์—ฌ ์—ฐ๋ น์„ ์ถ”์ •ํ•  ์ˆ˜ ์žˆ๋Š” ์„ ํ˜• ํšŒ๊ท€์‹์ด ๋„์ถœ๋˜์—ˆ๋‹ค. ํŒŒ๋…ธ๋ผ๋งˆ ๋ฐฉ์‚ฌ์„  ์‚ฌ์ง„์„ ์ด์šฉํ•œ ํ•˜์•… ์ขŒ์ธก ์ œ3๋Œ€๊ตฌ์น˜์˜ ์น˜์•„ ์„ํšŒํ™” ๋‹จ๊ณ„ ํ‰๊ฐ€ ๋ฐฉ๋ฒ•์€ ์†Œ์•„์ฒญ์†Œ๋…„์˜ ์—ฐ๋ น์„ ํ‰๊ฐ€ํ•  ์ˆ˜ ์žˆ๋Š” ์ˆ˜๋‹จ์œผ๋กœ ํ™œ์šฉ๋  ์ˆ˜ ์žˆ์œผ๋ฉฐ, ์ด๋ฒˆ ์—ฐ๊ตฌ ๊ฒฐ๊ณผ๋กœ ํ•œ๊ตญ ์†Œ์•„์ฒญ์†Œ๋…„์˜ ์ œ3๋Œ€๊ตฌ์น˜์˜ ๋ฐœ์œก ์‹œ๊ธฐ์— ๋Œ€ํ•œ ๊ธฐ์ค€์„ ์ œ์‹œํ•  ์ˆ˜ ์žˆ์—ˆ๋‹ค. The aim of this study is to provide a reference for age estimation of Korean children and adolescents, and to evaluate the left mandibular third-molar development with Demirjian method and its relation to 25 chronological age. A total of 1653 digital panoramic radiographs of healthy individuals aged between 7 and 23 years were selected. The developmental status of the left mandibular third molars was assessed using developmental scoring proposed by Demirjian et al. The mean age of the first appearance of mineralization, complete crown formation, and complete root formation were around 9, 14, 21 years respectively. Statistically significant differences in third molar development between males and females were revealed regarding the stages D and G. Third molar development was attained earlier in males than in females. Statistical analysis showed strong correlation between age and third molar development in both sexes. New formula was presented to estimate age of adolescents based on their developmental stages of third molars. In this study, the use of left mandibular third molars as a developmental marker is appropriate, and estimation of age of Korean chronologic age can be attained with this results.open์„

    ๊ณ„์ ˆ์กฐ์ •๋ฐฉ๋ฒ•์˜ ๋น„๊ต์—ฐ๊ตฌ

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    ํ•™์œ„๋…ผ๋ฌธ(์„์‚ฌ)--์„œ์šธ๋Œ€ํ•™๊ต ๋Œ€ํ•™์› :ํ†ต๊ณ„ํ•™๊ณผ,2003.Maste
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