Use of a resin-modified glass-ionomer (RMGI) liner in conservative direct treatment of deep caries

Liners and bases are a class of dental materials that provide added protection for the health and well-being of a tooth being restored. They help prevent postoperative sensitivity resulting from an incomplete dentinal seal. Some practitioners use them, while others choose not to. In this case report, a resin-modified glass-ionomer (RMGI) liner was utilized in deep restorations on premolars that had old, existing amalgam restorations and were experiencing microleakage and sensitivity problems. The materials and technique used allowed for conservative treatment while delivering an esthetic and functionally pleasing result.