Evaluation of the Inter-Premolar Width Changes in the Mandible using Three Different Commercial Arch Wires: A Prospective Clinical Study
Abstract
Objective: The aims of this study isto evaluate the inter-premolar width changes in the mandible using three different commercial orthodontic arch wires.
Subjects and methods: Thirty patients including both males and females have been allocated in this study. Three orthodontic wires including NiTi, copper NiTi, and Beta-Titanium wires had been used. A special observational technique including cbct had been used to make an evaluation for the interpremolar width before and after the aligning stage.
Results: The results showed a highly significant increase in post-treatment inter premolar width in CNA and NITI groups; compared to Cu NITI group; with highly significant statistical difference (p < 0.01 respectively).
Conclusion: The present study showed that there is a high significant increase in the inter-premolar width in the mandible, when comparing the wires in the groups (NiTi, CNA, and copper niti). Also, the gender of the patient does not seem to have an impact of the gender on post-treatment efficacy of each wire.
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Introduction
One of the targets of orthodontic treatment is to provide improvement in the dental health; this is also obtained through positioning the teeth into the best functional balance using fixed appliances. Consequently, an increasing in the number of adult patients who seeking orthodontic treatment is shown, not only for aesthetic purposes, but also due to recent development in socioeconomic conditions.1,2
Researchers have attempted to define and direct appropriate dental arch forms. With the coming of the pre-adjusted straight wire appliance, trials have been made to create a design and start commercializing arch-wires with ideal arch form.3
Tabulation of arch forms has implicated various geometric and complex mathematical formulas. The changes that it may happen in the form of the dental arch have suggested showing an effect on the stability and the periodontium. To decrease the chances of treatment relapse, multiple methods have been suggested, including preservation of the mandibular incisors in their pre-treatment position and preservation of the original arch form.3,4
Conclusion
The present study showed that there is a high significant increase in the inter-premolar width in the mandible, when comparing the wires in the groups (NiTi, CNA, and copper niti). Also, the gender of the patient does not seem to have an Impact of gender on post-treatment efficacy of each wire.