Auswertungen zur Hypersensitivität und zu unterschiedlichen Versorgungsansätzen an MIH-Zähnen

Abstract

Purpose: In view of the still high prevalence of molar incisor hypomineralization (MIH), the restoration of teeth with hypersensitivity and enamel and dentin breakdown remains relevant in everyday practice. The aim of this study was to investigate the extent of clinical hypersensitivities in MIH teeth and to compare different restorative strategies based on their survival data.Methods: Children between the ages of 6 and 18 years who had at least one MIH tooth requiring treatment were included and the severity of hypersensitivity was documented using the Schiff Cold Air Sensitivity Test. In addition, a qualitative assessment of all MIH-related restorations and analysis of their survival data were conducted.Results: A total of 350 MIH teeth were included in the study. Minor to moderate hypersensitivities were predominantly found on teeth with opacities and atypical restorations. Significantly increased hypersensitivities were detected on teeth with hard tissue defects, on molars, and in young patients (6-7 years). Survival data of the 204 MIH-related restorations assessed revealed a 3-year cumulative survival probability of 100.0 % for CAD/CAM-manufactured ceramic crowns, 76.2 % for conventional composite restorations, 29.9 % for noninvasive composite restorations, and 7.0 % for noninvasive glass ionomer cement restorations.Conclusions: The study results showed that hypersensitivity on MIH teeth is a clinical problem and severity varies. Furthermore, diverging survival rates were documented for different types of treatment on MIH teeth. While simplified procedures showed reduced survival probabilities, conventionally placed composite restorations and indirect CAD/CAM-manufactured restorations on MIH teeth showed high survival probabilities.