골격성 III급 부정교합자의 횡적인 골격과 악궁 형태에 관한 연구 = Study of horizontal skeletal pattern and dental arch in skeletal Class III malocclusion patients

국문 초록 (Abstract)

골격성 III급 부정교합자는 교정치료와 악교정 수술을 병행하여 치료하는 경우가 많아 골격형태에 대한 정확한 파악과 이해가 필수적이다. 이에 본 연구는 골격성 III급 부정교합자와 정상교합자 간의 골격 형태의 차이를 밝히고자 시행되었다. 실험군으로는 단국대학교 교정과에서 골격성 III급 부정교합으로 진단되어 술 전 교정치료를 받기로 예정된 총 20명을 선정하였고, 대조군으로는 골격성 I급 정상교합군으로 I급 교합관계를 보이며, 교정치료와 보철치료의 경험이 없는 정상 교합자 10명을 선정하여 CT촬영을 시행한 후 3차원 입체영상을 제작, 분석하여 상, 하악 기저골을 횡적으로 비교하여 다음과 같은 결론을 얻었다. 골격성 III급 부정교합자군의 특징을 살펴보면, 상악 기저골의 폭경이 유의성 있게 더 작았고, A point에서 ANS로 갈수록 제1소구치 부위에서 유의하게 폭이 감소하였으며, 제2소구치 부위에서 폭의 증가량이 유의하게 작았다. 하악 기저골은 B point, Antegonion 기준 횡단면에서 견치, 제1소구치 부위의 폭경이 유의성 있게 크게 나타났다. 상하악의 비교 시, 실험군의 견치부, 제1소구치부, 제2소구치부에서 하악에 비해 상악의 폭경이 유의성 있게 작음을 보였다.

다국어 초록 (Multilingual Abstract)

Objective: The purpose of this study was to investigate the horizontal skeletal pattern and dental arch differences between Class III malocclusion patients and normal occlusion patients. Methods: Twenty skeletal Class III malocclusion patients and ten normal occlusion patients were selected and 3D facial CT were taken to analyze the horizontal skeletal differences between the two groups. Results: In the horizontal comparison of the maxilla, skeletal width and perimeter were significantly smaller in skeletal Class III patients on ANS and A point reference planes. The difference between maxillary width of ANS and A point reference planes showed that there was greater constriction of the first and second premolar in skeletal Class III patients. In the horizontal comparison of the mandible, the widths of the canine and premolar area were significantly larger in skeletal Class III patients on B point reference plane. The differences between width of the upper and lower jaws (comparison of A and B reference planes) were significantly large in the canine and premolar area. Conclusions: From this study, the characteristics of Class III malocclusion patients were shown through horizontal constriction of the maxilla. But to make clear further detailed characteristics of Class III malocclusion patients, additional studies are necessary.

참고문헌 (Reference)

1 Lee SJ, "of malocclusion and orthodontic treatment need of 7-18 year-old Korean adolescent" 24 : 367-394, 1994

2 Kim WS, "of asymmetric degree between maxillofacial hard and soft tissue in facial asymmetric sugjects using three-dimensional computed tomography" 35 : 163-173, 2005

3 Kwon TG, "comparison of craniofacial morphology in patients with and without facial asymmetry - a three dimensional analysis with computed tomography" 35 : 43-48, 2006

4 Cavalcanti MG, "Three-dimensional computed tomography landmark measurement in craniofacial surgical planning: experimental validation in vitro" 57 : 690-694, 1999

5 Lude JC, "The technique for the determination of the size of the mandibular apical base; it`s application to growth studies" 37 : 272-284, 1967

6 Brodie AG, "The apical base; zone of interaction between the intestitial and skeletal system" 36 : 131-135, 1966

7 Worms FW, "Surgical orthodontic treatment planning: profile analysis and mandibular surgery" 46 : 1-25, 1976

8 Lee SJ, "Size and forms of the mandibular dental arch in Korean malocclusion patients" 35 : 15-22, 2005

9 Jeon KJ, "Reproducibilities of cephalometric measurements of three-dimensional CT images reconstructed in the personal computer" 33 : 171-178, 2003

10 Proffit WR, "Prevalence of malocclusion and orthodontic treatment need in the United States: estimates from the N-HANES III survey" 13 : 97-106, 1998

11 Williams DR, "Maxillary growth velocity and variation in three dimensions during treatment of Class III malocclusion" 43 : 422-439, 1973

12 Jacobson A, "Mandibular prognathism" 66 : 140-171, 1974

13 Park JW, "Formulation of a reference coordinate system of three-dimensional (3D) head and neck images: Part I. Reproducibility of 3D cephalometric landmarks" 35 : 388-397, 2005

14 Mills LF, "Epidemiologic studies of occlusion. IV. The prevalence of malocclusion in a population of 1,455 school children" 45 : 332-236, 1966

15 Sanborn RT, "Differences between the facial skeletal patterns of Class III malocclusion and normal occlusion" 25 : 208-222, 1955

16 Waitzman AA, "Craniofacial skeletal measurements based on computed tomography: Part II. Normal values and growth trends" 29 : 118-128, 1992

17 Xia J, "Computer-assisted three-dimensional surgical planning and simulation: 3D virtual osteotomy" 29 : 11-17, 2000

18 Xia J, "Computer-assisted three-dimensional surgical planning and simulation: 3D color facial model generation" 29 : 2-10, 2000

19 Xia J, "Computer-assisted three-dimensional surgical planing and simulation. 3D soft tissue planning and prediction" 29 : 250-258, 2000

20 Angle EH, "Classification of malocclusion" 41 : 248-264, 1899

21 Choi YS, "Basic principle of cone beam computed tomography" 36 : 123-129, 2006

22 Lee BD, "Application of three-dimensional CT in dentistry" 40 : 853-859, 2002

23 Kim KD, "Application of three-dimensional CT images using personal computer in dentistry" 42 : 197-208, 2004

24 Yoo YK, "A study on the prevalence of malocclusion in 2,378 Yonsei university students" 2 : 35-40, 1971

25 Ahn HS, "A study on maxillary basal bone morphology in skeletal class III malocclusion requiring orthognathic surgery" 25 : 577-586, 1995

26 Lee HK, "A study on basal dental arch width in skeletal class III malocclusion" 32 : 117-127, 2002

27 Kim JH, "A roentgenocephalometric study on morphologic factors of normal occlusion and class III malocclusion" 17 : 23-32, 1987

28 Lagerstrom LO, "A quantitative method for measuring change in the maxilla due to growth and orthodontic procedures" 37 : 241-250, 1967

29 Chang HS, "A proposal of landmarks for craniofacial analysis using three-dimensional CT imaging" 32 : 313-325, 2002

30 Broadbent BH, "A new X-ray technique and its application to orthodontia" 1 : 45-66, 1931

31 Park SJ, "A comparative study on craniofacial skeleton between Angle's class III malocclusion and normal occlusion" 17 : 63-71, 1987

32 Sassouni V, "A classification of skeletal facial types" 55 : 109-123, 1969