Abstract
Objectives: This study aimed to assess laser assisted orthodontic tooth movement (OTM) among subjects undergoing fixed orthodontic treatment (FOT) of four different treatment modalities (TM).
 Materials and Methods: Following consort flow diagram, a total of 32 subjects randomly allocated in to 4 different group based on TM. Group A (GA): 8 subjects, FOT with self-ligating bracket (SLB) + low laser irradiation (LLLI), Group A (GB): 8 subjects, FOT with self-ligating bracket + Non-LLLI, Group C (GC): 8 subjects, FOT with conventional bracket (CB) + low laser irradiation (LLLI), Group D (GD): 8 subjects, FOT with CB + Non-LLLI.
 Results: Clinical photographs and diagnostic CBCT has been taken. Clinical observation of OTM, baseline, 1-day and 28-day afterFOT in all TM groups has been assessed by single calibrated specialist. Among 4 TM groups, best OTM results observed in GA and the lesser OTM observed in GD.
 Conclusion: Among all 4 TM groups,1-month after FOT GA revealed promising benefit in relation to OTM.
 Bangladesh Journal of Medical Science Vol.18(2) 2019 p.385-390
Highlights
Bone is a specialized, hard, dynamic, connective tissue which is in a constant process of bone remodelling
It should be understood that orthodontic tooth movement (OTM) is made possible due to a well-organized deposition and resorption of alveolar bone
The periodontal ligament that attaches the tooth to the alveolar bone undergoes remodelling
Summary
Hard, dynamic, connective tissue which is in a constant process of bone remodelling. Bone remodelling is a physiological process where the structure of bone is maintained/preserved by equilibrium between bone deposition and resorption related to functional stresses that it is subjected to. This characteristic property of bone is exploited by a clinician for orthodontic tooth movement. The use of LLLI in orthodontics is a non-invasive procedure with promising results.[3,4,5,6,7,8,9,10] This treatment modality has been used in animal and human studies for various purposes with no adverse effects reported. Materials and Methods Study design This was an experimental study, a randomized
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