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. 2022 May-Jun;12(3):352-357.
doi: 10.1016/j.jobcr.2022.04.004. Epub 2022 Apr 19.

Evaluation of microleakage for three types of light cure orthodontic band cement

Lara Riyadh Al-Banaa  1
Affiliations

Evaluation of microleakage for three types of light cure orthodontic band cement

Lara Riyadh Al-Banaa. J Oral Biol Craniofac Res. 2022 May-Jun.

Abstract

Objective: The aim of this study was to compare the microleakage of three types of light cure orthodontic band cement (Resilience, Band-it and Transbond Plus) and to compare low and high curing light intensities at the enamel-cement and band-cement interfaces in the gingival and occlusal margins.

Materials and methods: Sixty extracted human premolars were divided into six groups (n = 10 specimens) according to the type of cement used and intensity of light cure. Microetched bands of upper premolars cemented to the teeth by Transbond Plus (3 M Unitek), Resilience (Orthotechnology) and Band-it (db Orthodontics). Three groups were cured by a standard mode light cure (over 900 mw/cm2) for 20 s, and the other three groups were cured with an extra mode light cure (over 2700 mw/cm2) for 6 s. The teeth were sealed by nail varnish and immersed for 24 h in 0.5% basic fuchsin solution. After that, the teeth were sectioned in the buccoligual direction, observed under a stereomicroscope, and then recorded for microleakage at the enamel-cement and band-cement interfaces in the gingival and occlusal margins. The statistical analysis was performed using Kruskal-Wallis and Mann-Whitney U tests, and the level of significance was set at P < 0.05.

Result: The microleakage scores showed no significant differences at the enamel-cement and band-cement interfaces among the three types of orthodontic band cement subjected to low- and high-intensity curing light.

Conclusions: The type of cement and intensity of light cure did not affect the amount of microleakage at either interface.

Keywords: Band cement; Light cure; Microleakage.

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Conflict of interest statement

No Conflict of interest.

Figures

Fig. 1
Fig. 1
Tooth prepared before immersing in fuchsin solution.
Fig. 2
Fig. 2
Pictures represent the sectioning machine (Minitom): (A)body of machine,(B) Screw, (C) Cut-off disk.
Fig. 3
Fig. 3
Stereomicroscope with screen showing Motic software.
Fig. 4
Fig. 4
Diagrammatic representation of microleakage recording quoted from Sabzevari et al., (A) band-cement, (B) enamel -cement interfaces in occlusal and gingival margins.
Fig. 5
Fig. 5
Line drawn parallel to the microleakage at the gingival side of the cement-enamel interface.
Fig. 6
Fig. 6
Line drawn parallel to the microleakage at the occlusal side of the cement-band interface.
See this image and copyright information in PMC

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