Whether adequate attention given to confounding factors affecting tooth movement in canine retraction studies? - A literature review with systematic criteria
Journal Title: Journal of Advanced Medical and Dental Sciences Research - Year 2018, Vol 6, Issue 11
Abstract
Background: The commonly used models to evaluate orthodontic tooth movement(OTM)in humans are canine retraction, lower anterior de-crowding, premolar buccal/apical movement, incisor apical movement, en-mass retraction, mesial/distal movement of molars and dental expansion.In therapeutic extraction cases, closure of first premolar space is a major step; hence earlier researchers have focused their attention on canine retraction to evaluate OTM. Objective: Studying OTM by considering as much as possible key factors that might have an effect on OTM is important and hence this review aimed to discuss whether the well-studied confounding variables had been considered when evaluating tooth movement in canine retraction studies. Method-Data source: Literature search had been carried out in the PubMed and Cochrane central library database using an appropriate search strategy together with hand searching. Study selection: A total of 47 articles were scrutinized from 418 clinical trials that met the stringent inclusion and exclusion criteria. Data extraction: Two authors independently extracted the data from each article with a pre-defined data field and the extracted data was finalized by the third author. Results: There is a presence of heterogeneity among the studies. Few studies have given adequate attention to well-studied confounding variables. Conclusion: The present review reveals that the factors that influence the tooth movement are vast and hence the outcomes of these studies should be viewed cautiously.
Authors and Affiliations
S. Lalithapriya, K. Rajasigamani, V. Bhaskar
Keywords
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