대한구강악안면방사선학회

Korean Academy of Oral and Maxillofacial Radiology

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청년 전악X선사진에 있어서 매복치 및 과잉치에 관한 연구
저자 : 안형규
1977년|7권 1호|Page : 5-8|조회수 448
Full Text : 1977_5.pdf (389.2K)
TI : The study of impacted and supernumerary teeth in young man by the full mouth roentgenograms

 AU : Ahn HK
 AD : Department of Dental Radiology, College of Dentistry, Seoul National University
 SO : JKAMFR. 1977;7(1):5-8
 ISSN :
 PY : 1977
 LA : KOREAN
 CP : KOREA

 AB : The author has observed 906 full mouth roentgenograms in Korean young man who had the impacted and supernumerary t eeth.
 Impacted and supernumerary teeth were analysed upon several items, such as incidences and positions in the dental arch .
 The results were as follows;
 1. The incidences of impacted teeth were 59.05%, and the ratio of upper jaw to lower one was 1:3.
 2. The frequency of the supernumerary teeth were 5.52%, and the ratio of maxilla to mandible was 49:1.
 3. No significant differences between right and left side in both jaws, but incidence rate of the supernumerary teeth w as 74% in the maxillary central incisor area.
 4. The positions of impacted and supernumerary teeth were vertical and inverted shapes in maxilla, whereas horizontal a nd mesio-angular forms in mandible.

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