Abstract
Fissure sealants should be placed in fully erupted MIH permanent molars, before breakdown occurs and when moisture control is adequate. In cases of inadequate isolation during eruption, glass ionomer cements can be considered as an interim preventive option. For intact hypomineralized molars, resin-based fissure sealants with adhesive application prior to placement are recommended and for patients with spontaneous hypersensitivity of posterior teeth, sealants and professional application of fluoride varnishes are reported as the appropriate preventive approach. Mechanical cleaning of fissures using a round bur no. ¼ and a bristle brush in a slow hand-piece may enhance the retention rates of sealants in MIH molars. The application of fifth- or sixth-generation adhesive systems according to the manufacturer’s instructions, following enamel etching, appears to have a significant positive effect on retention rates. Conflicting research results on enamel deproteinization with NaOCl does not support at present its regular use. Further research should be performed on the use of sealants for MIH-affected permanent molars for the (a) application at different stages of eruption, (b) use of different sealant materials and (c) use of etch-bond-seal technique. In addition, methodology of the studies should aim for high internal and external validity and longer follow-up periods.
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Lygidakis, N.N., Chatzidimitriou, K., Lygidakis, N.A. (2020). The Use of Fissure Sealants in MIH-Affected Posterior Teeth. In: Bekes, K. (eds) Molar Incisor Hypomineralization. Springer, Cham. https://doi.org/10.1007/978-3-030-31601-3_11
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DOI: https://doi.org/10.1007/978-3-030-31601-3_11
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