Multiloop edgewise Archwire 기법으로 치료된 전치 개교 증례의 두부방사선사진 계측학적 평가

• 영문명: A cephalometric evalauation of anterior openbite malocclusions treated by multiloop edgewise archwire technique
• 발행기관: 대한치과교정학회
• 저자명: 문성철(Seong-Cheol Moon) 장영일(Young-Il Chang)
• 간행물 정보: 『The Korean Journal of Orthodontics』제23권 제4호, 565~606쪽, 전체 42쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 1993.12.31

영문 초록

The purpose of this study was to evaluate the change of before and after treatment of anterior openbite malocclusions treated by Multiloop Edgewise Archwire technique. The openbite sample consisted of 4 male and 12 female adults, treated with nonextraction or third molar extraction. The normal sample consisted of 58 subjects, which have pleasing facial profile and normal occlusion and no experience of orthodontic or prosthodontic treatment. The 58 subjects of normal sample were subdivided by cephalometric vertical relationship of face. The 40 subjects, cephalometric vertical relationship of face was in normal range, classified as Normal Sample group 1. The 18 subjects, increased cephalometric vertical relationship of face, classified as Normal Sample group 2. The computerized cephalometric analysis was accomplished with 50 reference points for 22 skeletal measurements, 46 dentoalveolar measurements, 8 soft tissue measurements. Statistical analysis of the data was carried out with paired t-test, Student´s t-test, and DUNCAN test using SAS(PC version). The results were as follows : 1. There were no statistically significant differences in skeletal measurement between before and after treatment. The major changes were in dentoalveolar region. 2. After treatment, the long axis of maxillary and mandibular posterior teeth were distally tipped-back, and uprighted to bisected occlusal plane. The interincisal angle was increased. 3. There were no statistically significant increase in the upper posterior dental height and statistically significant decrease in the lower posterior dental height. The upper anterior dental height was increased, but there was no statistically significant increase in the absolute upper anterior dental hight. The lower anterior dental height was increased. 4. After treatment, the maxillary occlusal plane to palatal plane angle and the mandibular occlusal plane to mandibular plane angle were statistically significant increased. Then, there were no statistically significant difference between after treatment group and normal sample group 2. 5. After treatment, the percentage of upper lip length to upper anterior dental height was decreased. Then, There were no statistically significant difference between after treatment group and normal sample group 2.

키워드

Anterior openbite Multiloop Edgewise Archwire(MEAW) Occlusal plane