| 인접면 삭제와 변위-기반 접착술로 부착한 수용성 튜브를 이용한 절치 돌출의 교정 치료: 증례보고 |
|
노유연1, 임성훈2, 정서린3 |
1조선대학교 치과대학 치과교정학교실
2조선대학교 치과대학 치과교정학교실
3조선대학교 치과대학 치과교정학교실 |
| Orthodontic correction of bialveolar protrusion by interproximal reproximation and water-soluble tubes bonded with deflection-based bonding technique: A case report |
|
Yu-Yeon Roh1, Sung-Hoon Lim2, Seo-Rin Jeong3 |
1Department of Orthodontics, School of Dentistry, Chosun University
2Department of Orthodontics, School of Dentistry, Chosun University
3Department of Orthodontics, School of Dentistry, Chosun University |
|
|
| Abstract |
|
Orthodontic treatment with premolar extraction is usually performed to correct bialveolar protrusion. These methods require the use of stiff rectangular working archwire which requires lengthy alignment and leveling before insertion. In this case report, interproximal reproximation was performed instead of extraction. To establish clearance between the archwire and resin domes fixing the archwire, an archwire was inserted into a water-soluble tube before fabricating resin domes. This tube is solved away by the saliva. During fabrication of resin domes, the archwire was deflected intentionally reflecting the displacement of teeth from their ideal position. This can be called as deflection-based bonding (DBB) technique. DBB is different from conventional method of positioning the brackets on its ideal position and then inserting an archwire to align the brackets. Because the orthodontic force of the archwire comes from its deflection from passive configuration, deflecting an archwire as needed can move the teeth more predictably than just bonding brackets on its ideal position. Also, areas with good alignment before orthodontic treatment can be maintained simply by not deflecting the archwire during bonding in these areas. After initial alignment, interproximal reproximation was performed to create 4.8 mm space in the maxillary arch and 4.2 mm space in the mandibular arch. These spaces were closed using orthodontic mini-implant anchorage thus retracting the maxillary incisors 4 mm posteriorly accompanied with 0.7 mm and 0.3 mm distal movement of right and left molars. By using interproximal reproximation and water-soluble tube with DBB, mild bialveolar protrusion was successfully treated without extraction. |
| Key Words:
bialveolar protrusion;interproximal reproximation;water-soluble tube;deflection-based bonding;mini-implant; |
|
PDF Links
Download Citation
