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. 2022 Aug 24:11:44.
doi: 10.4103/jos.jos_28_22. eCollection 2022.

Ability of piezocision to retain orthodontically moved teeth in a goat model: A split-mouth study

Hana A Tokhtah  1 , Adel M Alhadlaq  1
Affiliations

Ability of piezocision to retain orthodontically moved teeth in a goat model: A split-mouth study

Hana A Tokhtah et al. J Orthod Sci. .

Abstract

Objectives: to evaluate the effectiveness of piezocision in enhancing retention when performed after orthodontic tooth movement.

Methods: Four mature goats had their second incisors removed bilaterally. For each goat, the two sides of the mandible were either treated with piezocision or served as a positive control. Using fixed orthodontic appliance, the first and third incisors on each side were approximated and then retained in place for two weeks. Relapse was measured by the amount of space developed between the approximated incisors after six weeks from the end of the retention period. The periodontal ligament of all incisors was assessed histologically with micro computed tomography and regular hematoxylin and eosin staining.

Results: A significantly less relapse was observed in the piezocision group than in the control group (p ≤ 0.05). Bone formation occurs in the vicinity and periphery of the periodontal ligament and thus results in the narrowing of the periodontal ligament.

Conclusion: A protocol of post-orthodontic retention involving piezocision can be promising to enhance stability of orthodontic treatment outcome.

Keywords: Histology; orthodontics; piezocision; post-orthodontic retention.

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Conflict of interest statement

There are no conflicts of interest.

Figures

Figure 1
Figure 1
Micro-CT image shows the selected midpoint between the alveolar crest and root apex (A). where the PDL width was measuered
Figure 2
Figure 2
(a). Light micrograph showing the PDL of the PG, showing islands of newly formed lamellar bone with active bone remodeling. (b). Higher magnification of framed area in (a) showing presence of osteoblasts and osteoclasts
See this image and copyright information in PMC

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