Integrated three-dimensional digital assessment of accuracy of anterior tooth movement using clear aligners
2
조회
0
다운로드
4
인용
0
참고문헌
키워드
초록
Objective: To assess the accuracy of anterior tooth movement using clear aligners in integrated three-dimensional digital models. Methods: Cone-beam computed tomography was performed before and after treatment with clear aligners in 32 patients. Plaster casts were laser-scanned for virtual setup and aligner fabrication. Differences in predicted and achieved root and crown positions of anterior teeth were compared on superimposed maxillofacial digital images and virtual models and analyzed by Student’s t-test. Results: The mean discrepancies in maxillary and mandibular crown positions were 0.376 ± 0.041 mm and 0.398 ± 0.037 mm, respectively. Maxillary and mandibular root positions differed by 2.062 ± 0.128 mm and 1.941 ± 0.154 mm, respectively. Conclusions: Crowns but not roots of anterior teeth can be moved to designated positions using clear aligners, because these appliances cause tooth movement by tilting motion. [Korean J Orthod 2015;45(6):275-281]
Abstract
Objective: To assess the accuracy of anterior tooth movement using clear aligners in integrated three-dimensional digital models. Methods: Cone-beam computed tomography was performed before and after treatment with clear aligners in 32 patients. Plaster casts were laser-scanned for virtual setup and aligner fabrication. Differences in predicted and achieved root and crown positions of anterior teeth were compared on superimposed maxillofacial digital images and virtual models and analyzed by Student’s t-test. Results: The mean discrepancies in maxillary and mandibular crown positions were 0.376 ± 0.041 mm and 0.398 ± 0.037 mm, respectively. Maxillary and mandibular root positions differed by 2.062 ± 0.128 mm and 1.941 ± 0.154 mm, respectively. Conclusions: Crowns but not roots of anterior teeth can be moved to designated positions using clear aligners, because these appliances cause tooth movement by tilting motion. [Korean J Orthod 2015;45(6):275-281]
참고문헌 (21)
- Kassas W, "Assessment of Invisalign treatment outcomes using the ABO Model Grading System", J World Fed Orthod, 2, pp.e61~64 (2013)
- Kravitz ND, "How well does Invisalign work? A prospective clinical study evaluating the efficacy of tooth movement with Invisalign", Am J Orthod Dentofacial Orthop, 135, pp.27~35 (2009)
- Lund H, "Apical root resorption during orthodontic treatment. A prospective study using cone beam CT", Angle Orthod, 82, pp.480~487 (2012)
- Krieger E, "Invisalign® treatment in the anterior region: were the predicted tooth movements achieved?", J Orofac Orthop, 73, pp.365~376 (2012)
- Castroflorio T, "Upper-incisor root control with Invisalign appliances", J Clin Orthod, 47, pp.346~351 (2013)
- Guo H, "A three-dimensional setup model with dental roots", J Clin Orthod, 45, pp.209~216 (2011)
- Chisari JR, "Variables affecting orthodontic tooth movement with clear aligners", Am J Orthod Dentofacial Orthop, 145, pp.S82~91 (2014)
- Rossini G, "Efficacy of clear aligners in controlling orthodontic tooth movement: A systematic review", Angle Orthod, 85, pp.881~889 (2015)
- Djeu G, "Outcome assessment of Invisalign and traditional orthodontic treatment compared with the American Board of Orthodontics objective grading system", Am J Orthod Dentofacial Orthop, 128, pp.292~298 (2005)
- Nguyen CV, "The invisalign system", pp.12~32 (2006), Quintessence Publishing Company, Ltd
- Kim DS, "Principal direction of inertia for 3D trajectories from patient-specific TMJ movement", Comput Biol Med, 43, pp.169~175 (2013)
- Macchi A, "Three-dimensional digital modeling and setup", Am J Orthod Dentofacial Orthop, 129, pp.605~610 (2006)
- Kim BC, "Integration accuracy of digital dental models and 3-dimensional computerized tomography images by sequential point- and surfacebased markerless registration", Oral Surg Oral Med Oral Pathol Oral Radiol Endod, 110, pp.370~378 (2010)
- Ye N, "Accuracy of in-vitro tooth volumetric measurements from cone-beam computed tomography", Am J Orthod Dentofacial Orthop, 142, pp.879~887 (2012)
- 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)
- Hahn W, "Torquing an upper central incisor with aligners--acting forces and biomechanical principles", Eur J Orthod, 32, pp.607~613 (2010)
- Brezniak N, "The clear plastic appliance: a biomechanical point of view", Angle Orthod, 78, pp.381~382 (2008)
- Baldwin DK, "Activation time and material stiffness of sequential removable orthodontic appliances. Part 3: premolar extraction patients", Am J Orthod Dentofacial Orthop, 133, pp.837~845 (2008)
- Krieger E, "Apical root resorption during orthodontic treatment with aligners? A retrospective radiometric study", Head Face Med, 9, pp.21~ (2013)
- Weltman B, "Root resorption associated with orthodontic tooth movement: a systematic review", Am J Orthod Dentofacial Orthop, 137, pp.462~476 (2010)
- Apajalahti S, "Apical root resorption after orthodontic treatment -- a retrospective study", Eur J Orthod, 29, pp.408~412 (2007)