Differential Analysis of Rate of En Masse Ret...

Differential Analysis of Rate of En Masse Retraction in Labial Vs Palatal Force Aided with Micro –Osteo perforation Accelerated Orthodontics – A Comparative in Vivo Study

Author Name : Dr. Roshni krishnan, Dr. Jai Prakash Mongia, Dr. Danayasi Ashok Kumar, Dr. Yogesh Kumar Mahobia, Dr. Rakshit Sthapak, Dr. Soumya Gupta

DOI: https://doi.org/10.56025/IJARESM.2023.115231944

ABSTRACT Introduction: Prolonged orthodontic treatments have inconvenienced patients and clinicians alike. Surgically assisted techniques for accelerating orthodontic tooth movement have shown promising results in the literature over the years. The minimally invasive nature of micro-osteo perforations (MOPs), however, for enhanced orthodontic tooth movement has recently gained momentum, with many clinical trials conducted on both animals and humans. Aim: In this comparative in vivo study 50 patients were selected randomly those who required therapeutic extraction of upper first premolar, as a part of orthodontic treatment. Material and Method: The patients were divided into two groups. In Group 1 en masse retraction of 25 patients was done by labial force with labial MOP while in Group 2 en masse retraction of 25 patients was done by labial and palatal force with labial and palatal MOP. En masse retraction was started in both groups of samples on 0.019 inch × 0.025 inch stainless steel as a working wire using sliding mechanics. Elastomeric chain was used as a force delivery method for both palatal and labial force. Then the patients were randomly assigned to receive 3 small MOPs labially between the canine and the second premolar on both side in group 1 while 3 small MOPs on both labial and palatably in group 2. Result: Over the four month observation, the amount of space closure was more in group 2 aided with labial and palatal MOP with a mean space closure of 3.53 ± 0.16 mm on right side and 3.31 ± 0.06 mm on the left side as compared to overall space closure aided with labial MOP is 3.45 ± 0.17 mm on right side and 3.1 ± 0.2 mm on left side. Conclusion: Thus this study proves that there is an increased rate of retraction seen clinically when more number of MOPs are performed but statistically there is no difference between both the experiment groups.