Abstract
Objective: To compare the success of self-drilling and self-tapping methods in the retraction of maxillary anterior teeth. Material and Methods: The study was conducted in 57 subjects with Cl II malocclusion who needed to be treated with extraction of four maxillary teeth. The self-tapping method was used on the left side and the self-drilling method was used on the right side. Then, the pain rate of each method was recorded by the numerical rating scale (NRS). Statistical analysis was done by t-test and Chi-square test. The significance level in this study was considered at p-value 0.05). There was a significant difference between the groups (p=0.03). The pain was significantly higher in the female. Conclusion: There is no difference between self-drilling and self-tapping methods in terms of success. Comparison of the pain between two genders according to the replantation method showed a significant difference in pain sensation between two genders. The pain sensation mean in female group was greater than male group.
Highlights
The pain rate of each method was recorded by the numerical rating scale (NRS)
Considering the clinical mobility as the failure, the success of treatment was equal in both methods and was 93%
Applying effective force to the teeth in the orthodontic treatment requires a proper suppository called anchorage, which is defined as resistance to unwanted dental movements [1,2,3]
Summary
Applying effective force to the teeth in the orthodontic treatment requires a proper suppository called anchorage, which is defined as resistance to unwanted dental movements [1,2,3]. The maximum anchorage is needed for treatment [5]. Mini-screws are widely used to provide anchorage for orthodontic treatment [7]. Osseo-integration implants were considered as a reliable source for providing anchorage for orthodontic treatment [8]. Their large size, and more importantly, the ability to create osseointegration, limited their use in these therapies. The use of mini-screws has been developed to provide suitable anchorage for orthodontic treatment in order to solve this problem [9,10]
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