http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Camouflage Extraction Treatment of Unilateral Cleft Lip and Palate Patient: 4-year Follow-up
Woowon Jang,Jueon Song,Soonshin Hwang,Chooryung J. Chung,Kyung-Ho Kim 대한구순구개열학회 2019 대한구순구개열학회지 Vol.22 No.1
Cleft lip and palate is one of the most common congenital abnormalities in the dentofacial region. Orthodontic treatment for adult patients with cleft lip and palate is difficult because of several factors such as dental anomalies, limitations in tooth movement around the cleft region, and retention. Here we report a case involving a 20-year-old woman with unilateral cleft lip and palate who successfully underwent camouflage orthodontic treatment for skeletal Class II malocclusion accompanied by absence of the maxillary left lateral incisor (#22) and second premolar (#25). After a 4-year retention phase, the facial profile and occlusion remained stable, without skeletal or occlusal changes. The findings from this case suggest that an appropriate orthodontic treatment plan and close monitoring during the retention phase can facilitate functional occlusion and esthetic improvement of the facial profile in adult patients with cleft lip and palate.
Sanghee Lee,Soonshin Hwang,Woowon Jang,Yoon Jeong Choi,Chooryung J Chung,Kyung-Ho Kim 대한치과교정학회 2018 대한치과교정학회지 Vol.48 No.6
Objective: This study was performed to investigate the alveolar bone of lower incisors in skeletal Class III adults of different vertical facial patterns and to compare it with that of Class I adults using cone-beam computed tomography (CBCT) images. Methods: CBCT images of 90 skeletal Class III and 29 Class I patients were evaluated. Class III subjects were divided by mandibular plane angle: high (SN-MP 〉 38.0°), normal (30.0° 〈 SN-MP 〈 37.0°), and low (SN- MP 〈 28.0°) groups. Buccolingual alveolar bone thickness was measured using CBCT images of mandibular incisors at alveolar crest and 3, 6, and 9 mm apical levels. Linear mixed model, Bonferroni post-hoc test, and Pearson correlation analysis were used for statistical significance. Results: Buccolingual alveolar bone in Class III high, normal and low angle subjects was not significantly different at alveolar crest and 3 mm apical level while lingual bone was thicker at 6 and 9 mm apical levels than on buccal side. Class III high angle group had thinner alveolar bone at all levels except at buccal alveolar crest and 9 mm apical level on lingual side compared to the Class I group. Class III high angle group showed thinner alveolar bone than the Class III normal or low angle groups in most regions. Mandibular plane angle showed negative correlations with mandibular anterior alveolar bone thickness. Conclusions: Skeletal Class III subjects with high mandibular plane angles showed thinner mandibular alveolar bone in most areas compared to normal or low angle subjects. Mandibular plane angle was negatively correlated with buccolingual alveolar bone thickness.