치아 석회화 단계와 골 성숙도 단계간의 상관관계에 대한 연구 = RELATIONSHIP BETWEEN DENTAL CALCIFICATION STAGES AND SKELETAL MATURITY INDICATORS IN KOREAN INDIVIDUAL

국문 초록 (Abstract)

본 연구는 성장 중인 부정교합 환자의 진단이나 치료계획의 수립，치료방법 및 시기，예후 등을 결정하는데 중요한 판단 지침이 되는 치아 석회화 단계와 경추 및 수완부골 성숙도간의 연관성을 규명하여 개인의 보다 정확하고 효율적인 사춘기 성장 정도를 평가하기 위해 시행하였다. 전신 질환이 없고 교정 치료 경험이 없는 7-16세의 여아 154명，남아 179 명，총 333명의 파노라마 방사선사진，측모 두부규격 방사선사진，수완부 방사선사진을 분석하여 평가하였다. 연구 결과，파노라마 방사선사진의 치아 석회화 단계를 통하여 사춘기 성장 정도를 평가하는 것은 부정교합 환자의 진단 및 치료계획을 수립하는데 임상적으로 유용한 정보를 제공할 것으로 판단되었다.

다국어 초록 (Multilingual Abstract)

The purpose of this study was to investigate the relationship between the stages of calcification of various teeth and skeletal maturity stages among Korean individuals. The study subjects consisted 154 female and 179 male ranging from 7 years to 16 years of age. A total of 333 hand-wrist, cephalo-lateral and panoramic radiographs were obtained and analyzed. The tooth development of the mandibular canines, first, second premolars, and second molars were assessed according to the Dermijian' s system. Skeletal maturity stages were determined from hand-wrist radiographs by using the SMI system and cephalo-lateral radiographs by using the CVMS, respectively.
The results were as follows
1. The mean ages of each stage of skeletal maturity were consistently younger in female subjects.
2. There was a high correlation between skeletal maturity of hand-wrist and cervical vertebrae in the both sexes.
3. There was a high correlation between skeletal maturity and dental calcification stage of mandibular canines, first premolar, second premolars, and second molar.
4. The mandibular second molar was tooth showing the highest correlation.
5. Percent distributions of the relationship between calcification stages of individual teeth and stages of skeletal maturity were obtained in both sexes.
In summary, this suggests that tooth calcification stages from panoramic radiographs might be clinically useful as a maturity indicator of the pubertal growth period.

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