Macroscopic and radiographic aspects of orthodontic movement associated with corticotomy: animal study
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To quantify the rate of tooth movement in two corticotomy protocols in an experimental model in rats through macroscopic and radiographic analysis.
The animals were divided into three groups: orthodontic movement (CO), orthodontic movement plus corticotomy surgery (G2), and orthodontic movement and corticotomy surgery with decorticalization (G3).The euthanasia occurred in 7 and 14 days. The data were statistically analyzed (p < 0.05).
The CO presented lower distance between the mesial surface of the first molar and the distal surface of the third molar when compared to the G2 (6.96 ± 0.24, p = 0.009) and G3 (6.93 ± 0.18, p = 0.016) in the macroscopic analysis. In the 7 days, there was no statistically significant radiographic difference between the three groups: CO(0.94 ± 0.21 mm2), G2(1.05 ± 0,27 mm2), and G3(1.08 ± 0.27 mm2).There was a statistically significant difference between CO (0.87 ± 0.12 mm2), G2 (1.00 ± 0.12 mm2), and G3 (1.11 ± 0.14 mm2) at 14 days. There was a statistically significant linear difference between the groups in all periods.
Tooth movement and the region of interest were influenced by corticotomy, regardless of the surgical technique in the 14 days.
KeywordsAnimal model Orthodontic movement Corticotomy surgery Decorticalization
Grant—São Paulo Research Foundation—FAPESP no. 2015/26523-5 and no. 2016/17141-4.
Compliance with ethical standards
Conflict of interest
Maria Aparecida Neves Jardini received research grants FAPESP; Nicole Berton de Moura received research grants FAPESP; the other authors declare that they have no conflict of interest.
- 4.Wilcko W, Wilcko T, Bouquot E, Ferguson D (2001) Rapid orthodontics with alveolar reshaping: two case reports of decrowding. Int J Periodontics Restorative Dent 21:9–19Google Scholar
- 12.Baloul SS, Gerstenfeld LC, Morgan EF, Carvalho RS, Van Dyke TE, Kantarci A (2011) Mechanism of action and morphologic changes in the alveolar bone in response to selective alveolar decortication–facilitated tooth movement. Am J Orthod Dentofacial Orthop 139(4 Suppl):S83–S101. https://doi.org/10.1016/j.ajodo.2010.09.026
- 15.Dibart S, Sebaoun JD, Surmenian J (2009) Piezocision: a minimally invasive, periodontally accelerated orthodontic tooth movement procedure. Compend Contin Educ Dent 30:342–344 346, 348–3450Google Scholar
- 19.Mostafa YA, Mohamed Salah Fayed M, Mehanni S, ElBokle NN, Heider AM (2009) Comparison of corticotomy-facilitated vs standard tooth-movement techniques in dogs with miniscrews as anchorage units. Am J Orthod Dentofac Orthop 136(4):570–577. https://doi.org/10.1016/j.ajodo.2007.10.052 CrossRefGoogle Scholar
- 20.Wilcko MT, Wilcko MW, Pulver JJ, Bissada NF, Bouquot JE (2009) Accelerated osteogenic orthodontics technique: a 1-stage surgically facilitated rapid orthodontic technique with alveolar augmentation. J Oral Maxillofac Surg 67(10):2149–2159. https://doi.org/10.1016/j.joms.2009.04.095 CrossRefGoogle Scholar