Browse > Article

A Comparison of pre and post-surgical characteristics in skeletal Class III malocclusion patients using counterpart analysis  

Sohn, Byung-Wha (Department of Orthodontics, College of Dentistry, Yonsei University)
Kyung, Seung-Hyun (Department of Orthodontics, Institute of Oral Health Science, Samsung Medical Center, College of Medicine, Sungkyunkwan University)
Kim, Beom-soo (Department of Orthodontics, College of Dentistry, Yonsei University)
Publication Information
The korean journal of orthodontics / v.34, no.1, 2004 , pp. 93-107 More about this Journal
Abstract
Enlow's counterpart analysis explains the complex with anatomic and developmental characteristics where craniofacial aspect of Individuals has been developed. Counterpart analysis does not compare individual measurement with the normal value from the average of majority but analyzes by comparison of values that each individual has. In this study we examined surgical changes in skeletal Class III malocclusion patients(male 40, female 40) and compared them with normal occlusion patients using counterpart analysis. The results indicated that : 1. Skeletal anterior-posterior discrepancy was relieved by shortening of the ramus width(B3). 2. The ramus alignment(R3, R4) was displaced posteriorly and the occlusal plane angle(R5) was rotated clockwise. 3. Skeletal Class III pattern was relieved in the post-operative group, but differences in the level of the cranium(R1, R2) was remaining compared to the normal occlusion patients. 4. In the comparison of surgery methods, the two-jaw surgery group presented changes In the maxillary length(A4), ramus alignment(R3, R4) and occlusal plane angle(R5) compared to the one-jaw surgery group, but the differences were not significant. In the past study about Korean skeletal Class m patients, the skeletal characteristics are upward backward rotation of the cranial base, posterior displacement of the maxilla, forward inclination of the ramus and lengthening of the mandibular body, but in this study, skeletal Class m pattern was relieved by shortening of the ramus width and maxillary advancement by orthognathic surgery, because orthognathic surgery is usually performed on limited areas in the maxilla and the mandible.
Keywords
Counterpart analysis; Skeletal class III malocclusion;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Burstone CJ, Tames RB, Legau H, Murphy GA, Norton LA. Cephalo-metrics for orthognathic surgery. J Oral Surg 1978 : 36 : 269-77
2 Burstone CJ. Lip posture and its significance in treatment planning. Am J Orthod 1967 : 53 : 262-84
3 Wylie WL. The assessment of anteroposterior dysplasia. Angle Orthod 1947 : 17 : 97-109
4 Enlow DH, Moyers ER, Hunter WS, McNamara JA Jr. A procedure for analysis of intrinsic facial form and growth. An equivalent-balance concept. Am J Orthod 1969 : 56 : 6-23
5 Enlow DH, Kuroda T, Lewis AB. The morphological and morpho-genetic basis for craniofacial form and pattern. Angle Orthod 1971 : 41 : 161-88
6 Proffit WR, Phillips C, Dann C IV, Turvery TA. Stability after surgical-orthodontic correction of skeletal Class III malocclusion. I. Mandi-bular setback. Int J Adult Orthod Othognath Surg 1991 : 6 : 7-18
7 Artun J, Krogstad O, Little RM. Stability of mandibular incisors follo-wing excessive proclination : a studyon adults with surgically treated mandibular prognathism. Angle Orthod 2000 : 60 : 99-106
8 손병화, 이윤정. 제III급 부정교합자의 양악수술후 교합평면의 안정성에 관한 연구. 대치교정지 2000 : 30 : 643-55
9 Downs WB. Analysis of dentofacial profile. Angle Orthod 1956 : 26: 191-212
10 Ricketts RM. A foundation for cephalometric communication. Am J Orthod 1960 : 46 : 330-57
11 Bjork A. Some biological aspects of prognathism an occlusion of teeth. Acta Odont Scand 1950 : 9 : 1-40
12 Bell WH. Modern practice in orthognathic and reconstructive surgery. Philadelphia : WB Saunders, 1992 : 2111-39
13 Bell WH. Modem practice in orthognathic and reconstructive surgery. Philadelphia :WB Saunders, 1992 : 676-701
14 손병화, 이기준, 모성서. 구조적 대응체 분석법에 의한 한국인 골격성 III급 부정교합의 특징. 대치교정지 2002 : 30 : 509-19
15 Komori E, Aigase K, Sugisaki M, Tanabe H. Cause of early skeletal relapse after mandibular setback. Am J Orthod Dentofac Orthop 1989 : 95 : 29-36
16 Wolford LM. Chemello PD. Hilliard F. Occlusalplane alteration in orthognathic surgery-Part I : Effects on function and esthetics. Am J Orthod Dentofac Orthop 1994 : 106 : 304-16
17 Rakosi T. Treatment of Class III malocclusion. Graber TM, Rakosi T, Petrovic AG, editors. Dentofacial orthopedics with functional appliances. St. Louis : CV Mosby, 1997 : 461-480
18 Franco JE, Sickels JE, Thrash WJ. Factors contributing to relapse in rigidly fixed mandibular setbacks. J oral Maxillofac Surg 1989 : 47 : 451-6
19 Jarabak JR. Technique and treatment with light wire edgewise appli-ance. 2nd ed.St Louis : CV Mosby, 1972 : 128-66
20 Pike JB, Sundheim RA Skeletal and dental responses to orthognathic surgical treatment. Angle Orthod 1997 : 67 : 447-54
21 Ghali GE. Sikes JW Jr. Intraoral vertical ramus osteotomy as the preferred treatment for mandibular prognathism. J Oral Maxillofac Surg 2000 : 58 : 313-5   DOI   ScienceOn
22 Oka T, Kawamoto T. Craniofacial pattern of Japanese adults with various types of malocclusion : a counterpartanalysis. Journal of Osaka Dental University 1994 : 28 : 1-16   PUBMED
23 Thompson JR. The individuality of the patient in facial skeletal gro-wth : Part 2. Am J Orthod Dentofac Orthop 1994 : 105 : 117-27   DOI   ScienceOn
24 Downs WB. Variations in facial relationships : Their significance in treatment and prognosis. Am J Orthod 1948 : 34 : 812-40   DOI   PUBMED   ScienceOn
25 Burstone CJ. The integumental profile. Am J Orthod 1958 : 44 : 1-25
26 Chemello PD. Wolford LM. Buschang PH. Occlusalplane alteration in orthognathicsurgery-Part II : Long -term stability of results. Am J Orthod Dentofac Orthop 1994 : 106 : 434-40
27 손병화, 이윤정, 양춘식. 구조적 대응체 분석법에 의한 한국인 악안면 두개골격형태에 관한 연구. 대치교정지 2000 : 30 : 509-19
28 Chang HP. Huang HH. Craniofacial pattern of young adults with var-ious types of malocclusion. Kaohsiung Journal of Medical Sciences 1998 : 14 : 168-76
29 Proffit WR, Turvey TA, Phillips C. Orthognathic surgery : A hiera-rchy of stability. Int J AdultOrthod Orthognath Surg 1996 : 11 : 191-204
30 박형식, 허진영, 김기정 등. 구내 하악골 상행지 수직 골절단술 후의 개교합 및 희귀 성향에 관한 임상적 연구. 대한구강악안면외과학회지 1997 : 23 : 35-42
31 Finn RA, Throckmorton GS, Bell WH, Legan HL. Biomechanical considerations in the surgical correction of mandibular deficiency. J Oral Surg 1980 : 38 : 257-64