Comparative study of root resorption between two methods for accelerated orthodontic tooth movement

Abstract

Objective: The aim of this study was to assess apical root resorption (RR) following the application of micro-osteoperforation (MOP) and piezocision (PzC) assisted orthodontics for the acceleration of tooth movement (TM). Materials and Methods: A total number of 16 patients seeking orthodontic therapy were included in this study. All patients had undergone 1 st premolars extraction and were indicated for canine retraction. These patients were divided into two groups; one was treated using MOP in one side while the other side served as control. In the other group PzC was performed in one side with no intervention done on the other side. Cone-beam Computed Tomography (CBCT) scans were obtained for every patient before and after canine retraction in order to evaluate amount of RR. Results: In the MOP group, there was no significant difference in canine root length between experimental and control sides. Whereas, in the PzC group, there was a statistically significant decrease in root length in the experimental side compared with the control side. When comparing both groups, the experimental PzC side showed a statistically significant decrease in root length compared to experimental MOP side postoperatively. Conclusion: Experimental PzC showed statistically significant decreases in canine root length compared to both experimental MOP and control side after canine retraction.

Three‐dimensional assessment of accelerating orthodontic tooth movement—micro‐osteoperforations vs piezocision: A randomized, parallel‐group and split‐mouth controlled clinical trial

“…Regarding root resorption, no significant differences between the MOPs and Piezo groups were observed in terms of the overall changes ( P = .087); however, a comparison of the experimental sides in both the groups showed a nearly significant difference. Furthermore, MOPs caused more root resorption (−0.04 ± 0.04 mm) than Piezo (−0.003 ± 0.06; P = .024), which contradicted the findings of Elkalza et al 14 Both the techniques were comparable to each other and their corresponding sides in terms of buccal and palatal bone height.…”

“…To our knowledge, this is the second clinical trial that evaluated buccal and palatal bone height for both the techniques using CBCT. This is one advantage of this study, as two‐dimensional radiographs are associated with many errors 14 . As, bone height reduction is considered a three‐dimensional phenomenon, it is best assessed using CBCT 39 .…”

“…No single study has been conducted to compare MOPs and Piezo in terms of the rate of tooth movement. Elkalza et al 14 compared both the techniques in terms of root length (root resorption). The overall net changes in canine retraction in MOPs and Piezo groups were −0.32 ± 1.14 and −0.55 ± 0.89 mm, respectively, with no significant difference ( P = .606).…”

Assessment of Root Changes and Bone Density Accompanying Different Methods of Accelerated Orthodontic Tooth Movement

“…Piezocision is a novel minimally invasive accelerated technique for orthodontic tooth movement. This technique involved cuts and injuries with piezoelectric tips which leads to the same effect of corticotomy with little invasiveness (10)(11)(12) . These cuts or bone insults are in charge of the initiation of the first demineralization process that called the regional acceleratory phenomenon (RAP).…”

“…Because of RR is a multifactorial issue, it is serious to know and focusing on the controlling factors that cause root resorption. So, the method of management may be modified to prevent it (10,17) .…”