Comparison of anchorage loss following initialleveling and aligning using ROTH and MBT Prescription – A clinicalprospective study

摘要

>Background: To evaluate the amount and percentage of anchor loss after initial leveling and aligning using a ROTH and MBT prescription. >Materials & Methods: Pre and post alignment lateral cephalograms & dental casts of 10 ROTH & 10 MBT patients. >Results: In the study, it was found that the amount of anchor loss is greater in the ROTH group than the MBT group. This could be due to the increased anterior tip in the ROTH prescription, compared to MBT. The total anterior tip in ROTH is 270 and in MBT is 200. The additional tip of 70 in ROTH prescription itself would have resulted in forward thrust of the anteriors. >Conclusion: The use of laceback and cinchbacks creates a statistically and clinically significant increase in the anchorage loss specificallywhen the posterior anchorage is not enhanced. In this study TPA wasnot used but studies have shown that passive TPA has almost noeffect on the clinician's need to preserve anchorage in thecorrection of malocclusion. On the other hand, the TPA is anexcellent way to prevent molar rotation and maintain the originalvertical and transverse dimension when desired.>How to cite the article:Rajesh M, Kishore MS, Shetty KS. Comparison of anchorage lossfollowing initial leveling and aligning using ROTH and MBTPrescription – A clinical prospective study. J Int Oral Health2014;6(2):16-21.