Preliminary Resin Infiltration of Hypomineralised Enamel for Posterior Indirect Adhesive Restoration: An Innovative Approach

Hypomineralised enamel presents a significant challenge for resin bonding due to its altered mechanical and structural properties. Our innovative clinical approach of resin infiltration prior to the bonding of a posterior indirect adhesive restoration aims to preserve dental tissues, reduce post-operative sensitivity, and strengthen the supporting enamel. A 14-year-old male experienced cold-induced pain from his maxillary left first permanent molar (26) affected by molar incisor hypomineralisation (MIH). Resin infiltration (Icon, DMG) of the remnant hypomineralised enamel after tooth preparation was performed before the bonding of a lithium disilicate glass-ceramic restoration, which avoided extending the margin sub-gingivally. The six-month follow-up confirmed satisfactory results: an optimal marginal adaptation without visible leakage, an absence of dental sensitivity, and satisfactory aesthetic appearance.