Page 145 - FINAL COMPENDIUM 2020-2021 27.2.2022

PAIN EXPERIENCE WITH MICRO-OSTEOPERFORATIONS DURING INITIAL ORTHODONTIC
ALIGNMENT: A RANDOMIZED CLINICAL TRIAL
Shahrin AA, Ghani SH, Norman NH

Objective: To investigate the perception of pain during initial maxillary alignment with an
adjunctive procedure of micro-osteoperforations (MOPs) compared to conventional
orthodontics. Materials and methods: This study design was a single-centred, two-arm
parallel prospective randomised clinical trial. Thirty consecutive adult subjects (25
females and 5 males; mean age ± SD, 22.66 ± 3.27 years) with 5-8mm moderate upper
labial segment crowding were randomly allocated using block randomisation into
intervention and control group. All subjects had first premolar extractions, bonded
conventional fixed appliances and 0.014-inch nickel-titanium archwire was placed for
initial alignment. The intervention group received a 3-mm deep MOPs procedure under
local anaesthesia using a Propel device (PROPEL Ortho Singapore) on the labio-gingival
aspect between the maxillary incisors. Both groups received a set of 100 mm visual
analogue scale to complete over the first week, recording pain at 24 hours, 3 days and 1
week. Data were analysed using repeated-measures analysis of variance (ANOVA).
Results: There was a statistically significant difference observed in perceived pain levels
between MOPs and the control group on day 1, day 3 and day 7 postoperatively. Pain
perception was significantly lower in the intervention group at all time points. Conclusion:
Accelerating orthodontic tooth movement with MOPs did not accentuate pain perceived
during initial maxillary alignment with fixed appliances.

Keywords: Tooth movement techniques, Minimally invasive surgical procedures, Pain,
Orthodontics, Corrective, Dental care, Prospective studies

Published in the Journal of Oral Research. 2020 Sep 30;9(4):309-18

Azaitun Akma Shahrin
Orthodontic Dental Clinic
Taiping, Perak

Sarah Haniza Abdul Ghani
Noraina Hafizan Norman
Centre of Paediatric Dentistry and Orthodontic Studies
Faculty of Dentistry
Universiti Teknologi MARA
Sungai Buloh, Malaysia

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