Survival of stainless-steel crowns and composite resin restorations in molars affected by molar-incisor hypomineralization (MIH)
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Background: Currently, there is no consensus on the superiority of any material for the restorative treatment of molars affected by molar-incisor hypomineralization (MIH). Aim: To evaluate the survival of restorations with stainless-steel crown (SSC) or composite resin (CR) in first permanent molars affected by MIH for 24 months. Design: In this retrospective cohort study, 61 CR and 54 SSC restorations placed on molars affected by MIH of patients, aged between 7 and 10, that were treated and overseen at a university dental clinic in the period of 2017-2020 were evaluated. The primary outcome was the failure-free survival time. Parametric survival models were used for data censored by interval, and the comparison between SSC and CR was performed using the hazard ratio function with a 95% confidence interval. Results: The survival of SSC and CR restorations after 24 months was 94.4% and 49.2%, respectively. This difference was influenced by the presence of previous restoration (aHR = 3.4; 95% CI: 1.2-9.4) and cusp involvement (aHR = 4.0; 95% CI: 1.5-11.2). Conclusion: In molars with MIH and the need for restorative treatment, SSC had a significantly higher survival rate than CR over 24 months.
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conservative treatment, dental care, dental restoration failure, paediatric dentistry, patient-reported outcome measures
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Inglês
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International Journal of Paediatric Dentistry, v. 32, n. 2, p. 240-250, 2022.
