양악전돌증 환자에서 하악 6전치 후방 이동 시 치료 방법에 따른 하악 경조직과 연조직의 변화: 하악 전방분절골절단술과 발치 교정 치료 = The Evaluation of Soft and Hard Tissue Change for Retraction of Lower Anterior Tooth in Bimaxillary Protrusion Patients according to Two Different Therapeutic Methods: Mandibular Anterior Segmental Osteotomy and Orthodontic Treatment with Teeth Extraction

다국어 초록 (Multilingual Abstract)

Purpose: The purpose of the study is to evaluate the effectiveness of anterior segmental osteotomy (ASO) in bimaxillary protrusion (BP) patients by comparison between the mandibular soft and hard tissue changes from orthodontic treatment and ASO. Methods: All 44 patients were diagnosed with BP in Kyung-Hee Medical Center. Orthodontic treatment with teeth extractions were underwent by 23 patients (Group A) and 21 patients underwent ASO (Group B). Mandibular soft and hard tissue changes were measured and evaluated, which were based on the vertical and horizontal reference line in lateral cephalometric radiographs. Statistical significance between the changes and correlation between each measurement were analyzed. Results: The amount of B point movement was lesser than that of the lower incisal tip (LIT) retraction, and LIT was tilted lingually in group A. The posterior movement discrepancy between LIT and B point was insignificant, and the inclination of lower incisor was not changed in group B. The soft tissues, including the lower lip, showed a posterior movement and reduction in the depth of mento-labial groove. According to the correlation analysis, the movement of the lower incisor was significantly related to the movement of the lower lip in group A, and the movement of the lower incisor was significantly related to that of the movement of lower lip, B point and Pog in group B. Conclusion: The orthodontic treatment in BP patients results in posterior tilting movement of the lower incisor, but ASO results in the bodily movement of the lower incisor. Consequently, ASO is more effective in BP cases because it ensures the controlled movement of the lower incisors.

참고문헌 (Reference)

1 강주만, "상순돌출을 동반한 골격성 III급 부정교합에서 수술방법에 따른 치료 후 상악 연조직 변화 - ASO/BSSRO와 Le Fort I/BSSRO 비교" 대한치과교정학회 40 (40): 383-397, 2010

2 Schwarz AM, "Zur schematischkeiten des Gebuessess in schaedel nach dem Verfahren vom" 17 : 283-, 1956

3 Moore JW, "Variation of the sella-nasion plane and its effect on SNA and SNB" 34 : 24-26, 1976

4 Lee JK, "Treatment outcomes of orthodontic treatment, corticotomy-assisted orthodontic treatment, and anterior segmental osteotomy for bimaxillary dentoalveolar protrusion" 120 : 1027-1036, 2007

5 Chung KR, "The miniplate with tube for skeletal anchorage" 36 : 407-412, 2002

6 Posen AL, "The influence of maximum perioral and tongue force on the incisor teeth" 42 : 285-309, 1972

7 Bell WH, "Surgical-orthodontic correction of adult bimaxillary protrusion" 28 : 578-590, 1970

8 Lew KK, "Profile changes following anterior subapical osteotomy in Chinese adults with bimaxillary protrusion" 4 : 189-196, 1989

9 Graber TM, "Orthodontic principles and practice" Saunders 1972

10 Lew KK, "Orthodontic considerations in the treatment of bimaxillary protrusion with anterior subapical osteotomy" 6 : 113-122, 1991

11 Bilodeau JE, "Nonsurgical treatment with rapid mandibular canine retraction via periodontal ligament distraction in an adult with a Class III malocclusion" 128 : 388-396, 2005

12 Park HS, "Micro-implant anchorage for treatment of skeletal Class I bialveolar protrusion" 35 : 417-422, 2001

13 Wassmund J, "Lehrbuch der praktischen chirurgie de Mundes und der Keifer" 1 : 260-282, 1935

14 Yokoo S, "Indications and procedures for segmental dentoalveolar osteotomy: a review of 13 patients" 17 : 254-263, 2002

15 Park JU, "Evaluation of the soft and hard tissue changes after anterior segmental osteotomy on the maxifla and mandible" CHURCHILL LIVINGSTONE, JOURNAL PRODUCTION DEPT, 66 : 98-103, 2008

16 Wunderer S, "Erfahrungen mit der operativen Behandlung hochgradiger，Prognathien" 39 : 451-, 1963

17 Cohn-Stock G., "Die chirurgische Immediatre-gulierung der Keifer, speziell die chirurgische Behandlung der Prognathie" 37 : 320-, 1921

18 Baek SH, "Determinants of successful treatment of bimaxillary protrusion: orthodontic treatment versus anterior segmental osteotomy" 16 : 234-246, 2005

19 Chung KR, "Corticotomy- assisted orthodontics" 35 : 331-339, 2001

20 Bae SM, "Clinical application of micro-implant anchorage" 36 : 298-302, 2002

21 Burstone CJ, "Cephalometrics for orthognathic surgery" 36 : 269-277, 1978

22 Proffit WR, "Bimaxillary protrusion, In Surgical correction of dentofacial deformities" Saunders 1015-1057, 1981

23 Farrow AL, "Bimaxillary protrusion in black Americans--an esthetic evaluation and the treatment considerations" 104 : 240-250, 1993