교정치료 후 나타나는 재발 경향에 대한 정량적 평가와 영향을 미치는 요소에 대한 연구
Quantitative evaluation and affecting factors of post-treatment relapse tendency
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본 연구는 교합 상태를 객관적이고 정량적으로 평가하기 위해 개발된 American Board of Orthodontics objective grading system (ABO-OGS)을 이용하여 교정치료 후 나타나는 재발 경향을 평가하고 이에 영향을 줄 수 있는 요소들과의 상관관계를 알아보고자 시행되었다. 부산대학교, 경희대학교와 단국대학교 치과병원 교정과에서 포괄적 교정치료를 받은 환자 중 치료종료 후 2년 이상의 유지기간을 갖는 80명의 환자를 대상으로 초진 시(T1)의 peer assessment rating (PAR) index, 치료 후(T2)와 유지 후(T3) 시기의 ABO-OGS를 측정하여 T2와 T3 간의 변화 양상을 각 항목별로 측정하였고, 나이, 성별, Angle 분류, 발치 여부, 유지기간, 초진 시의 상태와의 상관관계를 조사하기 위해 다중 회귀분석을 시행하여 다음과 같은 결과를 얻었다. T2 시기와 비교하여 T3 시기에 ABO-OGS의 7개 항목 중 치아 배열(alignment)은 악화되었으며, 교합 접촉(occlusal contact)과 치간 접촉(interproximal contact)은 개선되었고, 나머지 4개의 항목에서는 유의한 차이가 없었다. 다중 회귀분석을 시행한 결과, 유의한 회귀모형은 치아 배열(alignment), 교합 관계(occlusal relationship), 수평피개(overjet), 치간 접촉(interproximal contact) 항목이었으나, 회귀모형들의 설명력이 낮았으며, 연령, 성별, Angle 분류, 발치 여부, 유지기간, 초진시의 상태(initial PAR index, T1)는 T2 시기와 T3 시기의 ABO-OGS 변화량을 설명하는 데 큰 영향을 미치지는 않는 것으로 보인다.
Abstract
Objective: The purpose of this study was to quantitatively evaluate relapse tendency after orthodontic treatment and determine the contributing factors by using the American Board of Orthodontics objective grading system (ABO-OGS). Methods: The subjects were 80 patients with more than 2 years of retention period after completing orthodontic treatment at the dental hospitals of Busan University, Kyunghee University, and Dankook University. The posttreatment (T2) and post-retention (T3) ABO-OGS measurements were analyzed in relation to age, gender, Angle’s classification, extraction, retention period, and pretreatment condition (initial peer assessment rating (PAR) index, T1) by multiple regression analysis. Results: Among the 7 ABO-OGS criteria, alignment worsened but occlusal contact and interproximal contact improved in T3, but not in T2 (p ＜ 0.01). The 4 other criteria showed no significant differences. Multiple regression analysis showed that alignment, occlusal relationship, overjet, and interproximal contact were significant linear models, but with a low explanation power. Age, gender, Angle’s classification, extraction, retention period, and pretreatment condition (initial PAR index, T1) had little influence on the ABO-OGS changes between T3 and T2. Conclusions: An orthodontist’s understanding of posttreatment relapse tendency can be useful in diagnosis and during patient consultation.
참고문헌 (25)
- Hellman M, "Fundamental principles and expedient compromises in orthodontic procedures. In Transactions of the American Association of Orthodontists", pp.46~ (1945), St. Louis: Mosby
- Uhde MD, "Long-term stability of dental relationships after orthodontic treatment", Angle Orthod, 53, pp.240~252 (1983)
- Erdinc AE, "Relapse of anterior crowding in patients treated with extraction and nonextraction of premolars", Am J Orthod Dentofacial Orthop, 129, pp.775~784 (2006)
- Carmen RB, "A study of mandibular anterior crowding in untreated cases and its predictability", Am J Orthod, 77, pp.346~347 (1980)
- Little RM, "Stability and relapse of mandibular anterior alignment-first premolar extraction cases treated by traditional edgewise orthodontics", Am J Orthod, 80, pp.349~365 (1981)
- Rossouw PE, "A longitudinal evaluation of extraction versus nonextraction treatment with special reference to the posttreatment irregularity of the lower incisors", Semin Orthod, 5, pp.160~170 (1999)
- Little RM, "The irregularity index: a quantitative score of mandibular anterior alignment", Am J Orthod, 68, pp.554~563 (1975)
- Richmond S, "The development of the PAR Index (Peer Assessment Rating): reliability and validity", Eur J Orthod, 14, pp.125~139 (1992)
- Casko JS, "Objective grading system for dental casts and panoramic radiographs. American Board of Orthodontics", Am J Orthod Dentofacial Orthop, 114, pp.589~599 (1998)
- Ludwig MK, "An analysis of anterior overbite relationship changes during and following orthodontic treatment", Angle Orthod, 36, pp.204~210 (1966)
- Al Yami EA, "Stability of orthodontic treatment outcome: follow-up until 10 years postretention", Am J Orthod Dentofacial Orthop, 115, pp.300~304 (1999)
- Otuyemi OD, "Long-term evaluation of treated class II division 1 malocclusions utilizing the PAR index", Br J Orthod, 22, pp.171~178 (1995)
- Deguchi T, "Clinical assessment of orthodontic outcomes with the peer assessment rating, discrepancy index, objective grading system, and comprehensive clinical assessment", Am J Orthod Dentofacial Orthop, 127, pp.434~443 (2005)
- Shah AA, "Postretention changes in mandibular crowding: a review of the literature", Am J Orthod Dentofacial Orthop, 124, pp.298~308 (2003)
- Sauget E, "Comparison of occlusal contacts with use of Hawley and clear overlay retainers", Angle Orthod, 67, pp.223~230 (1997)
- Morton S, "Changes in functional occlusion during the postorthodontic retention period: a prospective longitudinal clinical study", Am J Orthod Dentofacial Orthop, 135, pp.310~315 (2009)
- Ormiston JP, "Retrospective analysis of long-term stable and unstable orthodontic treatment outcomes", Am J Orthod Dentofacial Orthop, 128, pp.568~574 (2005)
- Birkeland K, "Evaluation of treatment and post-treatment changes by the PAR Index", Eur J Orthod, 19, pp.279~288 (1997)
- Kim HH, "The treatment change of PAR (peer assessment rating) index and cephalometric measurements in Class I malocclusion patients", Korean J Orthod, 29, pp.277~284 (1999)
- de Freitas KM, "Influence of the quality of the finished occlusion on postretention occlusal relapse", Am J Orthod Dentofacial Orthop, 132(428), pp.e9~14 (2007)
- Nett BC, "Long-term posttreatment changes measured by the American Board of Orthodontics objective grading system", Am J Orthod Dentofacial Orthop, 127, pp.444~450 (2005)
- Driscoll-Gilliland J, "An evaluation of growth and stability in untreated and treated subjects", Am J Orthod Dentofacial Orthop, 120, pp.588~597 (2001)
- Schudy GF, "Posttreatment craniofacial growth: Its implications in orthodontic treatment", Am J Orthod, 65, pp.39~57 (1974)
- Vaden JL, "Relapse revisited", Am J Orthod Dentofacial Orthop, 111, pp.543~553 (1997)
- Little RM, "An evaluation of changes in mandibular anterior alignment from 10 to 20 years postretention", Am J Orthod Dentofacial Orthop, 93, pp.423~428 (1988)