IADR Abstract Archives
High-Viscosity Glass Ionomer Used With Selective Cavity Preparation in MIH
Objectives: The aim of this study was to assess the clinical performance of glass ionomer(GI) restorative system in selectively prepared cavities in the treatment of MIH affected posterior teeth.
Methods: 134 teeth belonging to 58 patients satisfying the inclusion and exclusion criteria were selected among a group of patients seeking routine dental care and recruited by the Marmara University, Dental School. 134 (69 upper;65 lower) first permanent molars affected by severe MIH status were restored. The carious removal process followed the principles of Minimum Intervention Dentistry, where the tissue was removed selectively, depending on the cavity depth. Restorations were performed using a high-viscosity glass ionomer cement (EQUIA forte GC Europe). Direct clinical evaluation of restorations was performed using the Modified USPHS criteria. The data were analysed by using the LogRank-test for discrete random variables and simple Cox-regression for continuous random variables with Kaplan-Meier survival analysis.
Results: Restorations placed over selective caries removal with GIC presented high survival rates. Within 24 months of evaluation, unsatisfied teeth were recorded and classified as unsatisfied using the Modified USPHS criteria, which characterizes Charlie for marginal adaptation, retention, secondary caries and postoperative sensistivity of the restored tooth.
The probability of being satisfied at 12 months and 24 months were found respectively 88,2%,78.6%. No statistically significant difference in satisfaction comparison rate was found between 12 and 18 months(p > 0.05). According to the univariate of survival analysis of the prognostic random variables were found statistically insignificant(p>0.05).
Conclusions: GIC placed in teeth with MIH patients have a high survival rate in 2-years follow-up time. Hypomineralised enamel and also post-eruptive breakdown (PEB)may influence the performance of GIC. Long-term clinical trials are needed, because they remain the ultimate way to collect scientific evidence on the clinical effectiveness of glassionomer restorative treatments.
Methods: 134 teeth belonging to 58 patients satisfying the inclusion and exclusion criteria were selected among a group of patients seeking routine dental care and recruited by the Marmara University, Dental School. 134 (69 upper;65 lower) first permanent molars affected by severe MIH status were restored. The carious removal process followed the principles of Minimum Intervention Dentistry, where the tissue was removed selectively, depending on the cavity depth. Restorations were performed using a high-viscosity glass ionomer cement (EQUIA forte GC Europe). Direct clinical evaluation of restorations was performed using the Modified USPHS criteria. The data were analysed by using the LogRank-test for discrete random variables and simple Cox-regression for continuous random variables with Kaplan-Meier survival analysis.
Results: Restorations placed over selective caries removal with GIC presented high survival rates. Within 24 months of evaluation, unsatisfied teeth were recorded and classified as unsatisfied using the Modified USPHS criteria, which characterizes Charlie for marginal adaptation, retention, secondary caries and postoperative sensistivity of the restored tooth.
The probability of being satisfied at 12 months and 24 months were found respectively 88,2%,78.6%. No statistically significant difference in satisfaction comparison rate was found between 12 and 18 months(p > 0.05). According to the univariate of survival analysis of the prognostic random variables were found statistically insignificant(p>0.05).
Conclusions: GIC placed in teeth with MIH patients have a high survival rate in 2-years follow-up time. Hypomineralised enamel and also post-eruptive breakdown (PEB)may influence the performance of GIC. Long-term clinical trials are needed, because they remain the ultimate way to collect scientific evidence on the clinical effectiveness of glassionomer restorative treatments.