Macroscopic and radiographic aspects of orthodontic movement associated with corticotomy: animal study

Zuppardo, Marcelo Lelis; Ferreira, Camila Lopes; Moura, Nicole Berton de; Longo, Mariéllen; Santamaria, Milton; Lopes, Sérgio Lúcio Pereira de Castro; Santamaría, Mauro Pedrine; Jardini, Maria Aparecida Neves

doi:10.1007/s10006-019-00744-7

Cited by 3 publications

(1 citation statement)

References 22 publications

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“…The sample size needed to determine tooth movement (primary outcome) calculated by a previous study 20 with an alpha level of 5% and power of 80% was 17 animals/group. To ensure sufficient samples, the final n-sample comprised 20 animals/group.…”

Section: Methodsmentioning

confidence: 99%

Effect of two corticotomy protocols on periodontal tissue and orthodontic movement

et al. 2020

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Effect of two corticotomy protocols on periodontal tissue and orthodontic movement Objective: To compare two corticotomy surgical protocols in rats to verify whether they alter conventional orthodontic movement. Methodology: Sixty Wistar rats were divided into three groups-orthodontic movement (CG), orthodontic movement and corticotomy (G1) and orthodontic movement with corticotomy and decortication (G2)-and euthanized after 7 and 14 days. Tooth movement (mm), bone volume fraction and bone volume ratio to total volume (BV/TV), and bone mineral density (BMD) were evaluated by micro-CT. The total amount of bone was measured in square millimeters and expressed as the percentage of bone area in the histomorphometry. The number of positive TRAP cells and RANK/RANKL/OPG interaction were also investigated. Results: Day 14 showed a statistically significant difference in orthodontic tooth movement in CG compared with G1 (7.52 mm; p=0.009) and G2 (7.36 mm; p=0.016). A micro-CT analysis revealed a difference between CG, G1 and G2 regarding BV/TV, with G1 and G2 presenting a lower BV/TV ratio at 14 days (0.77 and 0.73 respectively); we found no statistically significant differences regarding BMD. There was a difference in the total amount of bone in the CG group between 7 and 14 days. At 14 days, CG presented a significantly higher bone percentage than G1 and G2. Regarding TRAP, G2 had more positive cells at 7 and 14 days compared with CG and G1. Conclusion: Corticotomy accelerates orthodontic movement. Decortication does not improve corticotomy efficiency.

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Section: Methodsmentioning

confidence: 99%

Effect of two corticotomy protocols on periodontal tissue and orthodontic movement

et al. 2020

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The biological effects of Piezocision™ on bone for accelerated tooth movement: A systematic review of animal studies

Charavet,

Charpenay,

Kernitsky

et al. 2024

International Orthodontics

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Morphologic Evaluation of Dentoalveolar Structures after Corticotomy-Assisted Orthodontic Treatment in Romanian Adult Patients

et al. 2022

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Background and Objectives: Corticotomy-facilitated orthodontics is an approach that can be useful in treating complex orthodontic cases and that could enhance the rate of tooth movement. The aim of this study was to evaluate the changes that occurred in the buccal cortical bone and at the root level after an orthodontic treatment when corticotomy was used, in Romanian patients. Materials and Methods: After dividing the subjects into two groups (maxillary and mandibular corticotomy), based on CBCT, measurements were made of the thickness of the cortical buccal bone at the cervical, median and apical level, and of the root length at T0 (before corticotomy) and T1 (6 months after surgery). Several tests were used for statistical analysis of the data. Results: In the maxillary arch, the bone thickness measured after corticotomy in males was 0.64 mm at the cervical level, 0.53 mm at the medial level and 0.30 mm in the apical area. In females, the values were 0.46 mm (cervical), 0.37 mm (medial) and 0.36 mm (apical). In the lower arch, the values obtained for these three regions were 0.37 mm, 0.30 mm and 0.37 mm for males and 0.58 mm, 0.32 mm and 0.43 mm for female subjects. All values were statistically significant. The root length for the lower teeth at T0 was 11.98 ± 2.24 mm at T0 and 11.97 ± 2.24 mm at T1. For the upper teeth, the root length at T0 was 13.83 ± 2.28 mm and 13.81 ± 2.28 mm. Conclusions: Comparing the measurements, it was observed that the biggest changes in the cortical bone were at the cervical level. In the maxillary arch, the most significant modifications were registered at the canines and the level of the first premolars, and in the lower arch at the incisors level. The measured root resorption of the teeth was considered to be statistically insignificant.

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Macroscopic and radiographic aspects of orthodontic movement associated with corticotomy: animal study

Cited by 3 publications

References 22 publications

Effect of two corticotomy protocols on periodontal tissue and orthodontic movement

Effect of two corticotomy protocols on periodontal tissue and orthodontic movement

The biological effects of Piezocision™ on bone for accelerated tooth movement: A systematic review of animal studies

Morphologic Evaluation of Dentoalveolar Structures after Corticotomy-Assisted Orthodontic Treatment in Romanian Adult Patients

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