Validity of palatal superimposition of 3-dimensional digital models in cases treated with rapid maxillary expansion and maxillary protraction headgear
2
조회
0
다운로드
3
인용
0
참고문헌
키워드
초록
Objective: The purpose of this study was to evaluate the validity of the 3-dimensional (3D) superimposition method of digital models in patients who received treatment with rapid maxillary expansion (RME) and maxillary protraction headgear. Methods: The material consisted of pre- and post-treatment maxillary dental casts and lateral cephalograms of 30 patients, who underwent RME and maxillary protraction headgear treatment. Digital models were superimposed using the palate as a reference area. The movement of the maxillary central incisor and the first molar was measured on superimposed cephalograms and 3D digital models. To determine whether any difference existed between the 2 measuring techniques, intra-class correlation (ICC) and Bland-Altman plots were analyzed. Results: The measurements on the 3D digital models and cephalograms showed a very high correlation in the antero-posterior direction (ICC, 0.956 for central incisor and 0.941 for first molar) and a moderate correlation in the vertical direction (ICC, 0.748 for central incisor and 0.717 for first molar). Conclusions: The 3D model superimposition method using the palate as a reference area is as clinically reliable for assessing antero-posterior tooth movement as cephalometric superimposition, even in cases treated with orthopedic appliances, such as RME and maxillary protraction headgear.
Abstract
Objective: The purpose of this study was to evaluate the validity of the 3-dimensional (3D) superimposition method of digital models in patients who received treatment with rapid maxillary expansion (RME) and maxillary protraction headgear. Methods: The material consisted of pre- and post-treatment maxillary dental casts and lateral cephalograms of 30 patients, who underwent RME and maxillary protraction headgear treatment. Digital models were superimposed using the palate as a reference area. The movement of the maxillary central incisor and the first molar was measured on superimposed cephalograms and 3D digital models. To determine whether any difference existed between the 2 measuring techniques, intra-class correlation (ICC) and Bland-Altman plots were analyzed. Results: The measurements on the 3D digital models and cephalograms showed a very high correlation in the antero-posterior direction (ICC, 0.956 for central incisor and 0.941 for first molar) and a moderate correlation in the vertical direction (ICC, 0.748 for central incisor and 0.717 for first molar). Conclusions: The 3D model superimposition method using the palate as a reference area is as clinically reliable for assessing antero-posterior tooth movement as cephalometric superimposition, even in cases treated with orthopedic appliances, such as RME and maxillary protraction headgear.
참고문헌 (30)
- Ricketts RM, "A four-step method to distinguish orthodontic changes from natural growth", J Clin Orthod, 9, pp.208~228 (1975)
- Pancherz H, "A cephalometric analysis of skeletal and dental changes contributing to Class II correction in activator treatment", Am J Orthod, 85, pp.125~134 (1984)
- Ghafari J, "Misinterpreting growth and treatment outcome from serial cephalographs", Clin Orthod Res, 1, pp.102~106 (1998)
- Peavy DC Jr, "The effects of tooth movement on the palatine rugae", J Prosthet Dent, 18, pp.536~542 (1967)
- Almeida MA, "Stability of the palatal rugae as landmarks for analysis of dental casts", Angle Orthod, 65, pp.43~48 (1995)
- Bailey LT, "Stability of the palatal rugae as landmarks for analysis of dental casts in extraction and nonextraction cases", Angle Orthod, 66, pp.73~78 (1996)
- Hoggan BR, "The use of palatal rugae for the assessment of anteroposterior tooth movements", Am J Orthod Dentofacial Orthop, 119, pp.482~488 (2001)
- Motohashi N, "A 3D computer-aided design system applied to diagnosis and treatment planning in orthodontics and orthognathic surgery", Eur J Orthod, 21, pp.263~274 (1999)
- Cha BK, "Applications of three-dimensionally scanned models in orthodontics", Int J Comput Dent, 10, pp.41~52 (2007)
- 임미영, "석고 모형, 레이저 스캔 디지털 모형, 콘 빔 CT 영상 간의 모형 분석 계측치 비교", 대한치과교정학회지, 39(1), pp.6~17 (2009), 대한치과교정학회
- 이수경, "3차원 디지털 모형을 이용한 양악 치조골 전돌자의 치열궁 특성 연구", 대한치과교정학회지, 36(1), pp.45~54 (2006), 대한치과교정학회
- Cha BK, "Analysis of tooth movement in extraction cases using three-dimensional reverse engineering technology", Eur J Orthod, 29, pp.325~331 (2007)
- Commer P, "Construction and testing of a computer-based intraoral laser scanner for determining tooth positions", Med Eng Phys, 22, pp.625~635 (2000)
- Hayashi K, "A novel method for the three-dimensional (3-D) analysis of orthodontic tooth movement-calculation of rotation about and translation along the finite helical axis", J Biomech, 35, pp.45~51 (2002)
- Jang I, "A novel method for the assessment of threedimensional tooth movement during orthodontic treatment", Angle Orthod, 79, pp.447~453 (2009)
- Miller RJ, "Validation of Align Technology’s Treat III digital model superimposition tool and its case application", Orthod Craniofac Res, 6(Suppl 1), pp.143~149 (2003)
- Ashmore JL, "A 3-dimensional analysis of molar movement during headgear treatment", Am J Orthod Dentofacial Orthop, 121, pp.18~29 (2002)
- van der Linden FP, "Changes in the position of posterior teeth in relation to ruga points", Am J Orthod, 74, pp.142~161 (1978)
- Cha BK, "Preliminary study of future orthodontic model analysis: the orthodontic application of 3-dimensional reverse engineering technologies", Taehan Chikkwa Uisa Hyophoe Chi, 40, pp.107~117 (2002)
- Friel S, "Migration of teeth", Dent Rec, 69, pp.74~84 (1949)
- Simmons JD, "A longitudinal study of anteroposterior growth changes in the palatine rugae", J Dent Res, 66, pp.1512~1515 (1987)
- Geran RG, "A prospective long-term study on the effects of rapid maxillary expansion in the early mixed dentition", Am J Orthod Dentofacial Orthop, 129, pp.631~640 (2006)
- Phatouros A, "Morphologic changes of the palate after rapid maxillary expansion: a 3-dimensional computed tomography evaluation", Am J Orthod Dentofacial Orthop, 134, pp.117~124 (2008)
- Schwarze CW, "Does removal of the tooth germs of the third molars have an influence on the late form of the dental arch?", Fortschr Kieferorthop, 34, pp.387~400 (1973)
- Spillane LM, "Maxillary adaptation to expansion in the mixed dentition", Semin Orthod, 1, pp.176~187 (1995)
- Jafari A, "Study of stress distribution and displacement of various craniofacial structures following application of transverse orthopedic forces: a three-dimensional FEM study", Angle Orthod, 73, pp.12~20 (2003)
- Matsumoto M, "case report of the rapid expansion of the maxillary dental arch by opening the mid palatal suture", Nihon Kyosei Shika Gakkai Zasshi, 27, pp.166~174 (1968)
- Timms DJ, "Rapid maxillary expansion" (1981), Quintessence
- Wertz R, "Midpalatal suture opening: a normative study", Am J Orthod, 71, pp.367~381 (1977)
- Biederman W, "Rapid correction of Class 3 malocclusion by midpalatal expansion", Am J Orthod, 63, pp.47~55 (1973)