Effect of composite resin restorations in monkeys teeth with experimentally induced pulpitis

The short- and long-term pulpal reactions to composite resin restorations using differenct cavity lining materials have been assessed in monkey teeth with experimentally induced pulpitis. The inflammation was induced by filling cavities with soft human carious dentin and amalgam for 1 week. Healing of the inflammation and formation of reparative dentin was generally found independent of the lining materials used. The long-term response to cavities restored with carious dentin and amalgam was also healing of the primarily induced pulpal inflammation in most instances.