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Assessment of efficacy and post-bleaching sensitivity of home bleaching using 10% carbamide peroxide in extended and non-extended bleaching trays
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Assessment of efficacy and post-bleaching sensitivity of home bleaching using 10% carbamide peroxide in extended and non-extended bleaching trays
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Journal Article
Assessment of efficacy and post-bleaching sensitivity of home bleaching using 10% carbamide peroxide in extended and non-extended bleaching trays
2015
Overview
Key Points
Considers the benefits of home bleaching as part of a patient's overall treatment plan.
Describes the innovative use of a practice-based research project to answer a commonly asked question with respect to bleaching tray design.
Discusses various bleaching tray designs and their indications.
Aim
This study aimed to compare the effect of extended margin and conventional bleaching trays on tooth bleaching and tooth sensitivity.
Method and methods
Twenty subjects (18–56 years) were investigated in a split arch design clinical study that was conducted in a general dental practice. Each subject received a custom made bleaching tray and 10% carbamide peroxide gel. The bleaching trays had the borders extended 5 mm beyond the gingival margins on the right side and finished just at the gingival margin on the left side. Shade change and tooth sensitivity were the primary outcomes studied and analysed in this study. The shade of the six upper and lower anterior teeth was assessed using a value-ordered shade guide before, one week and two weeks after treatment. Sensitivity was self-assessed using a visual analogue scale (VAS) at the end of the first and second weeks of the study.
Results
At the end of week two, the mean shade change was 5.01 (± 3.37) and 5.10 (± 3.36) for teeth covered by extended and non-extended tray design, respectively. The mean VAS sensitivity scores for teeth covered by extended and non-extended tray design were 0.96 (± 1.39) and 0.66 (± 0.96), respectively. There was no significant statistical difference between the two designs at any assessment point with regard to shade change and sensitivity (p >0.05).
Conclusions
It can be concluded that an extended tray design confers no superior effect in terms of the whitening outcome achieved or in reducing levels of sensitivity. Thus, both tray designs can be used depending on a dentist's personal preference.
Publisher
Nature Publishing Group UK,Nature Publishing Group
