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Temporary Anchorage Devices in Treatment of Bimaxillary Proclination - A Retrospective Cross Sectional Study
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| Author:
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, DR. ANJALI ANNA THOMAS, DR. HARISH BABU, DR. REMMYA MARY VARGHESE
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| Abstract:
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Introduction of mini implants in orthodontic treatment mechanics has caused a paradigm shift in treatment plans requiring maximum anchorage. The versatility of TADs has made it popular among Orthodontic practitioners today. While the main criteria to choose a TAD is Absolute Anchorage, other factors may influence decisions on type of anchorage to be chosen. Patients with Class I malocclusion and Bimaxillary proclination invariably require Group A anchorage to allow maximum utilisation of extraction spaces for retraction of anterior teeth with minimal drifting of anchor units. The aim of this study was to evaluate the choice of anchorage devices used in patients undergoing treatment for bimaxillary proclination. Digital records of 50 patients with Bimaxillary proclination undergoing orthodontic treatment were screened for the type of anchorage chosen by the Orthodontist. Patient records with Interincisal angle less than 130 were considered as Bimaxillary proclination having Group A anchorage requirements. Individual patient data on Interincisal angle were collected and divided into two groups Group A (N=13) having severe proclination (Interincisal angle >90.9 and<108.95) and Group B (N=37) having moderate proclination (Interincisal angle >108.95 and<127). Data was tabulated in a Microsoft excel sheet and imported into IBM SPSS software for statistical analysis. Analysis of the data showed that 53% of patients in Group A had TADs used for Anchorage and 54% in Group B had TADs. However 56% of all patients undergoing treatment with maximum anchorage had TADs used for anchorage. The Pearson’s chi square test was done to check for association between severity of anterior proclination and type of Anchorage used and also for association between age of the patient and type of anchorage used. The Pearson’s chi square association test (p value- 0.990) indicated no association between severity of proclination based on a cephalometric parameter and the choice of anchorage. The Pearson’s chi square value of 1.991 indicated no statistically significant association between age of the patient and the use of TADs for anchorage. From the results of the study it can be concluded that within the sample population, TADs were the preferred choice of anchorage in patients irrespective of interincisal angle or age of the patient.
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| Keyword:
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Bimaxillary proclination, temporary anchorage devices (TADS), tooth supported anchorage (TPA), Interincisal angle.
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| EOI:
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-
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| DOI:
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https://doi.org/10.31838/ijpr/2020.SP2.269
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| Download:
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