Efficiency and Treatment Outcome of Piezocision Assisted Orthodontics

Mahalakshmi, R (2016) Efficiency and Treatment Outcome of Piezocision Assisted Orthodontics. Masters thesis, Ragas Dental College and Hospital, Chennai.


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AIM OF THE STUDY: The aim of this study was to evaluate the efficiency of piezocision assisted orthodontics during the retraction phase of orthodontic treatment. MATERIALS AND METHODS: Fifteen patients were selected for the prospective study, after exclusion 9 patients reported satisfying all the inclusion criteria patients with bimaxillary protrusion age range between 18- 35 yrs with no history of active periodontal disease and any systemic disease or under long term medication. The patients were divided into two groups, the study group in which the patients who were willing to participate in the study and the patient in the control group who declined to participate. Orthodontic treatment was started in both the groups with Roth 0.22*0.28 slot brackets. Piezocision was performed in the study group after completion of alignment till 19 *25 SSwire and retraction was started using 12mm closed coil springs with a force of 150gms. Space closure was assessed every month with the help of the study models and measured with the help of digital vernier caliper. Anchor loss during the space closure was assessed by using jigs in the lateral cephalograms. RESULTS: The rate of tooth movement was more in the study group than in the control. Peak rates of tooth movement occurred in the first month after the piezocision procedure in both in maxilla and the mandible and gradually decreased after first to fourth month but statistical significance was not reported. CONCLUSION: The rate of tooth movement is slightly more compared to the controls but for effective tooth movement to prolong second piezocision procedures may be needed to constant reactivating the RAP phenomenon to maintain the window of acceleration period.

Item Type: Thesis (Masters)
Uncontrolled Keywords: Piezocision, Corticotomy, Rapid Acceleratory Phenomenon, Accelerated Orthodontics.
Subjects: DENTAL > Orthodontics and Dentofacial Orthopedics
Depositing User: Subramani R
Date Deposited: 22 Sep 2021 04:58
Last Modified: 22 Sep 2021 04:58
URI: http://repository-tnmgrmu.ac.in/id/eprint/18062

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