• 대한치과교정학회지
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• 제49권6호
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• pp.381-392
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• 2019

Objective: The objective of this two-arm parallel trial was to compare the type of tooth movement during en masse retraction of the maxillary anterior teeth using labial versus lingual biocreative therapy. Methods: Twenty-eight subjects were randomized in a 1 : 1 ratio to either the labial or lingual group. En masse anterior retraction was performed using labial biocreative therapy in group A and lingual biocreative therapy in group B. Cone beam computed tomography scans were taken before and after retraction and the primary outcome was the type of tooth movement during anterior retraction. Data were analyzed using paired t-tests for comparisons within each group and independent-sample t-test for comparison of the mean treatment changes between the two groups. Results: Significant differences were found between the two groups in relation to the type of tooth movement (labiolingual inclination of the central incisor; mean difference, $5.85{\pm}1.85^{\circ}$). The canine showed significant distal tipping in the lingual group (mean difference, $6.98{\pm}1.25^{\circ}$). The canine was significantly more intruded in the lingual group (mean difference, $1.67{\pm}0.49mm$). Good anchorage control and significant soft tissue changes occurred in both groups. No serious adverse effects were detected. Conclusions: With a 10-mm retraction hook, the labial biocreative technique with the reverse curve overlay provided anterior retraction with good torque control, while in the lingual group, anterior retraction occurred with controlled tipping movement with significant distal tipping and intrusion of the canine (trial registration: The trial was registered at ClinicalTrials.gov [NCT03239275]).

• 대한치과교정학회지
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• 제40권4호
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• pp.276-287
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• 2010

본 증례보고는 심한 양악 치아치조성 전돌과 전치부 치열밀집을 보이는 23세 8개월 여자 환자를 대상으로 한 변형된 형태의 설측 교정치료법인 설측 Biocreative therapy 치료를 소개하고자 한다. 양악 제1소구치 발치 후 구개천장에 식립된 C-플래이트에 lingual sheath가 달린 보조장치를 접착하여 상악구치부에 장치부착 없이 튜브역할을 대신하게 하였으며 상악 전치부의 decrowding과 견인을 위하여 설측 교정용 브라켓을 사용하지 않고 0.022 슬롯을 가진 순측 브라켓을 치아 설면에 부착한 후 납착된 설측 레버암을 이용하여 상악 전치부의 3차원적인 견인을 시행하였으며, 견인 후 finishing 기간동안 tooth positioner를 사용하였다. 상악 구치부의 장치부착 없이도 총 치료기간은 19개월 소요되었고, 안정적인 교합관계와 안모의 개선이 이루어졌다. 장치 제거 후 13개월 유지 후에도 양호한 결과가 유지되었다.