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KMID : 0358919840110010145
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Journal of the Korean Academy of Pedodontics
1984 Volume.11 No. 1 p.145 ~ p.150
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STATISTICAL STUDY OF THE DEPTH OF THE GINGIVAL SULCUS IN THE PRIMARY TEETH.
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Sung Hwang-Sook
Lee Jong-Gap
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Abstract
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Author have measured the depth of gingival sulcus of the primary teeth. 333 teeth were selected from the children who attended on the department of pedodontic, College of dentistry, Yonsei University and kindergarten children at Won Ju city aged from 1 year 8 months to 10 year 2 months. 1998 point were measured.
The results were as follows. ;
1. Facial surface was the shallowest in sulcus depth compared with other surfaces. It was 1.56㎜. The depth of sulcus in lingual surface was deeper than facial.
2. The deepest part of each surface was mesial and distal. There were no statistical differences between mesial and distal part of the sulcus depth.
3. The mean sulcus depth of each tooth was as follows.
Primary central incisor ‥‥‥1.71㎜.
Primary canine ‥‥‥‥‥‥‥1.75㎜.
Primary second molar ‥‥‥‥2.03㎜.
4. The mean sulcus depth of upper was 1.86㎜, and the lower was 1.76㎜. The upper tooth was deeper than lower in sulcus depth.
5. The lower primary central incisor had the shallowest sulcus and the upper 2nd primary molar had the deepest compared with other tooth.
6. There wasn’t specific statistical differences between the age groups of primary dentition and mixed dentition.
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