九州歯科大学付属病院矯正科を訪れた唇・顎・口蓋裂者の過去 10 年間の統計的観察

概要

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A statistical investigation was carried out on 149 patients with cleft lip, jaw and/or palate who received treatment at Kyushu Dental College Department of Orthodontics during a 10 year period, form 1976 to 1985. The results were as follows : 1) 149 patients consisted of 86 males and 63 females. The sex ratio was almost 1.4 : 1. 2) By year, an increasing tendency for male was marked since 1983 which was the first year when the health insurance system was applied to the malocclusions caused by cleft lip, jaw and/or palate. The tendency for female was not marked. 3) By age, patients who received the first treatment at the age of 8 formed the largest group. And about 85% of the total were treated by the age of 12. 4) Of all patients with cleft lip, jaw and/or palate, the patients with cleft lip and palate accounted for 85.3%. The unilateral cleft was much more in number than the bilateral one. Especially in both cleft lip, jaw and palate and cleft lip and jaw, the left side accounted for twice as many as the right side. 5) By the Dental Age at the first treatment, stage IIIB accounted for 45.6% of the total. In the Angle's classification, cases of Angle class II were many and patients with cross-bite accounted for 85.9% of the total.
1986-08-25