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. 2016 Apr-Jun;7(2):158-62.
doi: 10.4103/0976-237X.183049.

Comparative evaluation of efficacy of self-ligating interactive bracket with conventional preadjusted bracket: A clinical study

Balajee Jayachandran  1 , Ratna Padmanabhan  1 , Devaki Vijayalakshmi  1 , Janardhanam Padmanabhan  1
Affiliations

Comparative evaluation of efficacy of self-ligating interactive bracket with conventional preadjusted bracket: A clinical study

Balajee Jayachandran et al. Contemp Clin Dent. 2016 Apr-Jun.

Abstract

Aims and objectives: This clinical study was conducted to compare the interactive self-ligating twin brackets and the standard double width brackets for their efficiency in Rate of Retraction.

Materials and methods: A total of 20 patients with Angle's class I or class II or class III dento-alveolar malocclusions between the age group of 18-25 years were selected. 10 patients in each group both males and females were randomly selected for the study. Ten patients were bonded using conventional brackets (Group I) the other ten patients were bonded using Interactive self-ligating brackets (Group II). The Rate of retraction was quantified using the scanned models. Pretreatment and post treatment models were taken and scanned to measure the amount of Incisor movement and Anchor loss.

Results: (1) Interactive Self-ligating brackets showed significant Rate of retraction when compared with conventional brackets on right and left quadrant. (Group I 0.545 ± .205: Group II 0.827 ± .208 P = .013*) (Group I 0.598 ± .160: Group II 0.804 ± .268 P = .071) (2) Interactive self-ligating brackets when compared with conventional brackets had significant amount of incisor movement on right and left quadrant. (Group I 3.51 ± .548: Group II 4.38 ± .1.06 P = .047*) and (Group I 3.66 ± .899: Group II 4.67 ± 1.02 P = .047*) (3) Conventional brackets showed significant Amount of Anchor loss when compared with that of Interactive self-ligating brackets on right and left quadrant. (Group I .948 ± .392: Group II 0.501 ± .229 P = .013*). In the left side (Group I 0.861 ± .464: Group II 0.498 ± .227 P = .060).

Conclusion: The interactive self-ligating brackets show more efficiency in Rate of Retraction, Amount of Incisor movement and Amount of Anchor loss when compared with the conventional brackets.

Keywords: Interactive brackets; self-ligating; sliding mechanics.

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Figures

Figure 1
Figure 1
Pre- and post-retraction intraoral images
Figure 2
Figure 2
Markings on the model before scanning and scanned model superimposed on the graphical template with the points (IM, RR, and AL)
Figure 3
Figure 3
Scanned image of the models at 1:1 ratio
Figure 4
Figure 4
Measuring the amount of retraction from the implant to the tip of the canine (RR point)
Figure 5
Figure 5
Measuring the amount of anchor loss from the implant to the mesial marginal ridge of the maxillary first molar (AL point)
Figure 6
Figure 6
Measuring the amount of the incisor movement from the implant to the central incisor tip (IM point)
See this image and copyright information in PMC

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