Alveolar restoration following rapid maxillary expansion with and without corticotomy: A microcomputed tomography study in sheep
1
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
Objective: This study examined bone microstructure restoration after rapid maxillary expansion (RME) with and without corticotomy over multiple retention periods. Methods: Eighteen male Dorper sheep were randomly distributed into three groups (n = 6 each group): group 1, RME with corticotomy on the buccal and palatal sides; group 2, conventional RME treatment; and group 3, no treatment. Post-RME, trabecular bone microstructure and new bone formation were evaluated by using microcomputed tomography (microCT) and histomorphometry after a 4- or 12-week retention period. Intergroup differences in bone quality and bone remodeling were analyzed by using two-way analysis of variance with Bonferroni post-hoc test. Results: The bone volume fraction (bone volume [BV]/total volume [TV]) values relative to the control in groups 1 and 2 were 54.40% to 69.88% after the 4-week retention period and returned to approximately 80% after the 12-week retention period. The pooled BV/ TV values of the banded teeth in groups 1 and 2 were significantly lower than those of the control after the 4-week retention period (p < 0.05). However, after the 12-week retention period, the pooled BV/TV values in group 2 were significantly lower than those in groups 1 and 3 (p < 0.05). Histomorphological analysis showed that the new bone formation area in group 1 was approximately two to three times of those in group 2 and control. Conclusions: Corticotomy significantly enhanced the restoration of bone quality after the retention periods for banded teeth. This benefit might result from the increased new bone formation after corticotomy.
Abstract
Objective: This study examined bone microstructure restoration after rapid maxillary expansion (RME) with and without corticotomy over multiple retention periods. Methods: Eighteen male Dorper sheep were randomly distributed into three groups (n = 6 each group): group 1, RME with corticotomy on the buccal and palatal sides; group 2, conventional RME treatment; and group 3, no treatment. Post-RME, trabecular bone microstructure and new bone formation were evaluated by using microcomputed tomography (microCT) and histomorphometry after a 4- or 12-week retention period. Intergroup differences in bone quality and bone remodeling were analyzed by using two-way analysis of variance with Bonferroni post-hoc test. Results: The bone volume fraction (bone volume [BV]/total volume [TV]) values relative to the control in groups 1 and 2 were 54.40% to 69.88% after the 4-week retention period and returned to approximately 80% after the 12-week retention period. The pooled BV/ TV values of the banded teeth in groups 1 and 2 were significantly lower than those of the control after the 4-week retention period (p < 0.05). However, after the 12-week retention period, the pooled BV/TV values in group 2 were significantly lower than those in groups 1 and 3 (p < 0.05). Histomorphological analysis showed that the new bone formation area in group 1 was approximately two to three times of those in group 2 and control. Conclusions: Corticotomy significantly enhanced the restoration of bone quality after the retention periods for banded teeth. This benefit might result from the increased new bone formation after corticotomy.
참고문헌 (29)
- King EW, "Relapse of orthodontic treatment", Angle Orthod, 44, pp.300~315 (1974)
- Little RM, "Little on the University of Washington post-retention studies", J Clin Orthod, 43, pp.723~727 (2009)
- Little RM, "Clinical implications of the University of Washington post-retention studies", J Clin Orthod, 43, pp.645~651 (2009)
- Gurel HG, "Longterm effects of rapid maxillary expansion followed by fixed appliances", Angle Orthod, 80, pp.5~9 (2010)
- Suri L, "Surgically assisted rapid palatal expansion : a literature review", Am J Orthod Dentofacial Orthop, 133, pp.290~302 (2008)
- Johnston CD, "Retention in orthodontics", Br Dent J, 218, pp.119~122 (2015)
- van Leeuwen EJ, "The effect of retention on orthodontic relapse after the use of small continuous or discontinuous forces. An experimental study in beagle dogs", Eur J Oral Sci, 111, pp.111~116 (2003)
- Godoy F, "Treatment of posterior crossbite comparing 2 appliances : a community-based trial", Am J Orthod Dentofacial Orthop, 139, pp.45~52 (2011)
- Cozzani M, "Arch width changes with a rapid maxillary expansion appliance anchored to the primary teeth", Angle Orthod, 77, pp.296~302 (2007)
- Bell RA, "The effects of maxillary expansion using a quad-helix appliance during the deciduous and mixed dentitions", Am J Orthod, 79, pp.152~161 (1981)
- Petrén S, "Stability of unilateral posterior crossbite correction in the mixed dentition : a randomized clinical trial with a 3-year follow-up", Am J Orthod Dentofacial Orthop, 139, pp.e73~e81 (2011)
- Kole H., "Surgical operations on the alveolar ridge to correct occlusal abnormalities", Oral Surg Oral Med Oral Pathol, 12, pp.515~529 (1959)
- Wilcko MT, "Accelerated osteogenic orthodontics technique : a 1-stage surgically facilitated rapid orthodontic technique with alveolar augmentation", J Oral Maxillofac Surg, 67, pp.2149~2159 (2009)
- Chung KR, "Speedy surgical-orthodontic treatment with temporary anchorage devices as an alternative to orthognathic surgery", Am J Orthod Dentofacial Orthop, 135, pp.787~798 (2009)
- Lines PA, "Adult rapid maxillary expansion with corticotomy", Am J Orthod, 67, pp.44~56 (1975)
- Echchadi ME, "Corticotomy-assisted rapid maxillary expansion : a novel approach with a 3-year follow-up", Am J Orthod Dentofacial Orthop, 148, pp.138~153 (2015)
- My Huy Thuc Le, "Adjunctive buccal and palatal corticotomy for adult maxillary expansion in an animal model", 대한치과교정학회지, 48(2), pp.98~106 (2018), 대한치과교정학회
- Charan J, "How to calculate sample size in animal studies", J Pharmacol Pharmacother, 4, pp.303~306 (2013)
- Ferguson DJ, "Biology of orthodontic tooth movement", pp.13~44 (2016), Springer
- Verna C, "Histomorphometric study of bone reactions during orthodontic tooth movement in rats", Bone, 24, pp.371~379 (1999)
- Chang HW, "Effects of orthodontic tooth movement on alveolar bone density", Clin Oral Investig, 16, pp.679~688 (2012)
- Hsu JT, "Bone density changes around teeth during orthodontic treatment", Clin Oral Investig, 15, pp.511~519 (2011)
- Panmekiate S, "Comparison of mandibular bone microarchitecture between micro-CT and CBCT images", Dentomaxillofac Radiol, 44, pp.20140322~ (2015)
- Franzen TJ, "Expression of bone markers and micro-CT analysis of alveolar bone during orthodontic relapse", Orthod Craniofac Res, 17, pp.249~258 (2014)
- Martins DC, "Rapid maxillary expansion : do banded teeth develop more external root resorption than non-banded anchorage teeth", Angle Orthod, 86, pp.39~45 (2016)
- Langford SR, "Root resorption extremes resulting from clinical RME", Am J Orthod, 81, pp.371~377 (1982)
- Sebaoun JD, "Modeling of trabecular bone and lamina dura following selective alveolar decortication in rats", J Periodontol, 79, pp.1679~1688 (2008)
- Bogoch E, "Healing of cancellous bone osteotomy in rabbits--part II : local reversal of arthritis-induced osteopenia after osteotomy", J Orthop Res, 11, pp.292~298 (1993)
- McBride MD, "How does the amount of surgical insult affect bone around moving teeth", Am J Orthod Dentofacial Orthop, 145, pp.S92~S99 (2014)