Effect of piezocision corticotomy on en-masse retraction:

Abstract

Objectives To compare the amount of en-masse retraction with or without piezocision corticotomy, to assess the type of tooth movement, to evaluate root integrity after retraction, and to record reported pain levels. Materials and Methods This randomized, controlled clinical trial included 26 orthodontic patients requiring premolar extraction. The patients were divided into two groups: (1) an extraction with piezocision corticotomy group (PCG) and (2) an extraction-only group, which served as the control group (CG). Cone-beam computed tomography images were acquired before and 4 months after the initiation of en-masse retraction utilizing miniscrews. The following variables were assessed: the amount of en-masse retraction, incisor inclination, incisor and canine root resorption, and patient-reported pain. Results Twelve and 11 participants completed the entire study in the PCG and CG, respectively. The amount of en-masse retraction was significantly greater in the PCG compared to the CG (mean = 4.8 ± 0.57 mm vs 2.4 ± 0.33 mm, respectively [P < .001]). There was also significantly less tipping and root resorption of incisors in the PCG (P < .05). The reported pain was significantly higher on the first day in the PCG compared to the CG (P < .001); however, it became similar between the groups after 24 hours. Conclusions Piezocision corticotomy enhanced the amount of en-masse retraction two times more with less root resorption. However, future studies are required to assess the long-term effects of this technique.

Young Adults’ Preferences and Willingness to Pay for Invasive and Non-invasive Accelerated Orthodontic Treatment: A Comparative Study

“… 5 , 6 , 8 , 14 Many studies on accelerated orthodontic tooth movement focused on surgical techniques, such as corticotomy and piezocision. 5 , 16 - 20 Many clinical applications are focused on these 2, owing to its effectiveness in reducing orthodontic treatment duration and hastening tooth movement. 1 , 5 , 6 , 16 - 20 However, issues on the use of this treatment arise due to its invasive nature as it needs complete mucoperiosteal flaps and extensive exclusion of alveolar cortical bone, with side effects such as post-surgical discomfort, inflammation, and hematomas.…”

“… 5 , 16 - 20 Many clinical applications are focused on these 2, owing to its effectiveness in reducing orthodontic treatment duration and hastening tooth movement. 1 , 5 , 6 , 16 - 20 However, issues on the use of this treatment arise due to its invasive nature as it needs complete mucoperiosteal flaps and extensive exclusion of alveolar cortical bone, with side effects such as post-surgical discomfort, inflammation, and hematomas. 1 , 5 - 7 , 16 - 19 On the other hand, piezocision is deemed effective in reducing treatment duration without any unwanted side effects.…”

“… 1 , 5 - 7 , 16 - 19 On the other hand, piezocision is deemed effective in reducing treatment duration without any unwanted side effects. 7 , 20 …”

Pulp volume changes after piezocision-assisted tooth movement: a randomized clinical trial

“…A limitation of the current study was the small sample size as the sample was taken from a previous study [19]. Still, the sample size is similar to previous root resorption and pulp volume studies [9,31].…”

“…The study sample was taken from a previous clinical trial [19]. Brie y, Orthodontic patients were recruited from the Faculty of Dentistry at King Abdulaziz University according to the following inclusion criteria: 1) patients age between 16-26 years, 2) half cusp or more Class II division 1 malocclusion, 3) mild or no crowding, 4) maxillary arches requiring bilateral rst premolar extractions as part of the orthodontic treatment plan, and 5) good oral hygiene and healthy periodontal condition.…”