Efficiency of Mandibular Arch Alignment with Self-Ligating and Conventional Edgewise Appliances: A Dental Cast Study

Ribeiro, Diego A. Gaspar; deAlmeida, Marcio Rodrigues; Conti, Ana Cláudia de Castro Ferreira

doi:10.4172/2161-1122.1000128

Cited by 2 publications

(2 citation statements)

References 25 publications

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“…Although significantly lower LII score changes were observed during the first three months of alignment with Damon3 MX compared to conventional MBT brackets, the rate of improvement in lower teeth irregularity over the 4-month period was not significantly different between the two bracket groups. This finding corroborates the results of a clinical trial by Ribeiro et al 20 The authors found no statistically significant differences between self-ligating and conventional bracket systems in the correction of lower dental crowding during the initial alignment phase (after 180 days). On the other hand, after 600 days of treatment, the difference in the correction of mandibular crowding between the conventional and self-ligating groups was statistically significant.…”

Section: Discussionsupporting

confidence: 91%

“…On the other hand, after 600 days of treatment, the difference in the correction of mandibular crowding between the conventional and self-ligating groups was statistically significant. 20 In an investigation with a split-mouth design by Miles et al, 21 60 patients were enrolled to compare the efficacy of Damon2 brackets and conventional twin brackets during the initial alignment of mandibular teeth. At both 10 weeks and 20 weeks after the start of treatment, the conventional twin bracket system showed a lower irregularity index score than Damon2 bracket by 0.2 mm, which was not clinically significant.…”

Section: Discussionmentioning

confidence: 99%

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Comparison of self-ligating Damon3 and conventional MBT brackets regarding alignment efficiency and pain experience: A randomized clinical trial

Jahanbin

Hasanzadeh

Khaki

et al. 2019

J Dent Res Dent Clin Dent Prospects

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Background. Self-ligating brackets might be more efficient than conventional appliance systems during the initial alignment stage of orthodontic treatment due to reduced frictional resistance. This study aimed to compare the alignment efficiency and pain experience of Damon3 self-ligating and MBT pre-adjusted brackets in the initial alignment stage. Methods. In this randomized clinical trial, 30 patients aged 14‒20 years, who needed non-extraction treatment in both maxillary and mandibular arches, were randomly assigned to two groups; 15 patients were treated with MBT pre-adjusted brackets, and 15 patients received Damon3 self-ligating brackets, both with 0.022-in slots. Alginate impressions were taken at the start of treatment (T0) and four monthly visits (T1, T2, T3, and T4). Little’s irregularity index (LII) was used to assess the tooth displacements. The patients rated their pain experience immediately after the insertion of the archwire, 4 hours, 24 hours, 3 days, 7 days, and at each monthly visit using a visual analog scale (VAS). Results. The rate of upper dental alignment between T0 and T4 was significantly higher with the Damon3 compared to MBT brackets (P=0.015). Although significantly more changes in the lower LII scores were observed during the first three months with the Damon3 system, the rate of improvement in the irregularity of lower teeth over the 4-month period was not significantly different between the two groups (P=0.50). The patients’ pain experience was not significantly different between the bracket groups (P=0.29). Conclusion. During the four-month alignment stage, significantly more improvement in the upper dental irregularity was observed with self-ligating compared to conventional brackets. The bracket type had no effect on pain experience during the alignment stage.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 99%