Abstract
Objective
This randomized clinical trial evaluated the survival of direct restorations on first permanent molars (FPMs) with molar incisor hypomineralization (MIH) and its impact on self-reported dental pain and dental anxiety.
Material and method
FPMs with MIH of 35 patients aged 7 to 16 years were included. The FPMs were randomized into the following two groups: total-etch (TE—37% phosphoric acid etching) and self-etch (SE—no prior etching). The FPMs were restored with universal adhesive and bulk-fill resin composites. The restoration survival was evaluated according to USPHS criteria modified by a blinded examiner. Dental anxiety (Venham picture test) and dental pain (Faces pain scale—revised) were evaluated before treatment and at 1, 6, and 12 months post-treatment. Survival rates were analyzed by the Kaplan-Meier method and the log-rank test. Nonparametric tests compared pain and anxiety in the follow-up periods.
Results
A total of 64 FPMs were restored (TE = 33; SE = 31). Survival rates were 96.9% (TE) and 96.7% (SE) after 1 month, 90.5% (TE) and 80.6% (SE) after 6 months, and 80.8% (TE) and 62.3% (SE) after 12 months (p > 0.05). Self-reported dental pain and anxiety level decreased after treatment in both groups (p < 0.05). Self-reported pain decreased after 1 month in SE, but it occurred at 6 months in TE.
Conclusion
Both restorative protocols presented similar longevity, decreasing self-reported pain and anxiety levels.
Clinical relevance
A universal adhesive could be appropriate for restoration of MIH-affected teeth, and the survival of restorations could be higher in the total-etch technique, reducing dental pain and anxiety.
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Acknowledgments
The authors thank the children and their mothers for participating in the study. Support for this work was provided by the Brazilian Agency for Higher Education Personnel Coordination and Improvement (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior [CAPES]).
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The work was supported by the Brazilian Agency for Higher Education Personnel Coordination and Improvement (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior [CAPES]).
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The authors declares that the study was conducted according to the principles of ethical. Professional conduct had been followed, Informed consent was obtained from all participants.
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All procedures that involved human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.
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Informed consent was obtained from all participants included in the study. All parents authorized their children’s participation in the study by signing an informed consent form. The protocol was approved by the Human Research Committee of UFPR before the research.
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Rolim, T.Z.C., da Costa, T.R.F., Wambier, L.M. et al. Adhesive restoration of molars affected by molar incisor hypomineralization: a randomized clinical trial. Clin Oral Invest 25, 1513–1524 (2021). https://doi.org/10.1007/s00784-020-03459-2
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DOI: https://doi.org/10.1007/s00784-020-03459-2