The aim of restorative dental treatment is to restore the patient's aesthetic and functional loss. It also serves the purpose of protecting the hard tissues of the teeth. Another purpose of restorative dental treatment is to maintain the vitality of the tooth. The treatments required to maintain the vitality of the tooth, in other words, vary according to the proximity of the tooth to the nerve tissue, or in other words, the amount of dentin tissue remaining in the tooth. The specialist physician ensures the continuation of the vitality of the tooth by choosing materials that will stimulate the regeneration of the hard tissue of the tooth.