A cone-beam computed tomography study on strategic uprighting of mandibular molars using a biocreative reverse curve system
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Objective: To analyze the overall treatment effects in terms of the amount of uprighting with changes in the three-dimensional positions of the mandibular posterior teeth after applying the biocreative reverse curve (BRC) system. Methods: Thirty-four patients (mean age, 20.5 ± 8.56 years) were treated using the BRC system (mean period, 8.17 ± 2.19 months). Cone-beam computed tomography was performed before treatment and after treatment with the BRC system. The three-dimensional movement of each tooth was analyzed in the coordinate system at points on the crown and root apex. A paired t-test was used to analyze the treatment effects of the BRC system. Results: The application of the BRC system spanning from the first premolar to the second molar resulted not only in buccal and distal uprighting, but also in increased buccal and distal tipping of the teeth. The premolars and the first molar were extruded, and the second molar was intruded. Conclusions: When the BRC system is applied, simultaneous distal and buccal uprighting of the premolars and molars can be achieved bilaterally using a temporary skeletal anchorage device without unnecessary movement of the anterior teeth.
Abstract
Objective: To analyze the overall treatment effects in terms of the amount of uprighting with changes in the three-dimensional positions of the mandibular posterior teeth after applying the biocreative reverse curve (BRC) system. Methods: Thirty-four patients (mean age, 20.5 ± 8.56 years) were treated using the BRC system (mean period, 8.17 ± 2.19 months). Cone-beam computed tomography was performed before treatment and after treatment with the BRC system. The three-dimensional movement of each tooth was analyzed in the coordinate system at points on the crown and root apex. A paired t-test was used to analyze the treatment effects of the BRC system. Results: The application of the BRC system spanning from the first premolar to the second molar resulted not only in buccal and distal uprighting, but also in increased buccal and distal tipping of the teeth. The premolars and the first molar were extruded, and the second molar was intruded. Conclusions: When the BRC system is applied, simultaneous distal and buccal uprighting of the premolars and molars can be achieved bilaterally using a temporary skeletal anchorage device without unnecessary movement of the anterior teeth.
참고문헌 (15)
- Haralabakis NB, "Surgical correction of mesially impacted mandibular second molars", J Clin Orthod, 37, pp.209~212 (2003)
- Staggers JA, "A comparison of the effects of first premolar extractions on third molar angulation", Angle Orthod, 62, pp.135~138 (1992)
- Bernstein RL, "Leveling the curve of Spee with a continuous archwire technique : a long term cephalometric study", Am J Orthod Dentofacial Orthop, 131, pp.363~371 (2007)
- Alexander RG, "The Alexander discipline: long-term stability", pp.141~143 (2011), Quintessence Publishing Co., Inc
- Sawicka M, "Uprighting partially impacted permanent second molars", Angle Orthod, 77, pp.148~154 (2007)
- Shellhart WC, "Uprighting molars without extrusion", J Am Dent Assoc, 130, pp.381~385 (1999)
- Kim YH, "The versatility and effectiveness of the multiloop edgewise archwire(MEAW)in treatment of various malocclusions", World J Orthod, 2, pp.208~218 (2001)
- Roberts WW 3rd, "A segmental approach to mandibular molar uprighting", Am J Orthod, 81, pp.177~184 (1982)
- Lee KJ, "Uprighting mandibular second molars with direct miniscrew anchorage", J Clin Orthod, 41, pp.627~635 (2007)
- Ahn HW, "Strategic molar uprighting using the biocreative reverse-curve technique", J Clin Orthod, 54, pp.486~494 (2020)
- 안효원, "Correction of dental Class III with posterior open bite by simple biomechanics using an anterior C-tube miniplate", 대한치과교정학회지, 42(5), pp.270~278 (2012), 대한치과교정학회
- Park Jae-Hyun, "Evaluation of strategic uprighting of the mandibular molars using an orthodontic miniplate and a nickel-titanium reverse curve arch wire: Preliminary cephalometric study", 대한치과교정학회지, 51(3), pp.179~188 (2021), 대한치과교정학회[DOI]
- Burstone CJ, "Creative wire bending--the force system from step and V bends", Am J Orthod Dentofacial Orthop, 93, pp.59~67 (1988)
- Burstone CJ, "Force systems from an ideal arch", Am J Orthod, 65, pp.270~289 (1974)
- Smith RJ, "Mechanics of tooth movement", Am J Orthod, 85, pp.294~307 (1984)