Evaluatıon of the Effect of Pulpotomy Treatments wıth dıfferent bıomaterıals on postoperatıve paın ın Permanent Molars

Dental caries, an infectious disease, is the most common cause of pulp inflammation. However, the dentin-pulp complex has several physiological defence mechanisms against caries. Preserving pulp viability is the primary goal of biologically based, minimally invasive treatments. Therefore, vital pulp treatments such as partial and total pulpotomies have become increasingly common. Vital pulp therapy is a series of conservative procedures that rely on the natural repair mechanisms of the dentin-pulp complex. This treatment is based on the placement of an appropriate medicamentous and sealed coronal restoration to create a biologically suitable environment for the pulp tissue to heal and protect against bacterial contamination. Root canal treatment is also commonly performed on teeth with deep caries. However, despite the high success rate of 89%, problems such as transpotation, apical zipper formation, instrument breakage during mechanical preparation, failure to reach all canals and inadequate or excessive root filling can lead to treatment failure. Unlike root canal treatment, which involves the removal of all pulp tissue, vital pulp treatment preserves the immune defence and regenerative potential of the pulp and allows root development to continue in immature teeth. Many studies show that the carious pulp of mature teeth is capable of regeneration and that vital pulp therapy is successful in symptomatic and permanent teeth . In recent years, calcium silicate-based cements (MTA, biodentin and bioceramic cements) have become the standard biomaterials for vital pulp treatment due to their biocompatibility and bioactivity . In vivo studies have shown predictable histological results in pulp healing with pulpotomy treatments using MTA . However, as MTA is manufactured in powder/liquid form, it requires a mixing procedure prior to application. As it is difficult to achieve the appropriate consistency of the powder/liquid ratio during the mixing process , changes in the mechanical or chemical properties of the materials may occur. A previous in vitro study found that changes in the powder/liquid ratio affected the radiopacity, setting time, solubility and calcium ion release of MTA. Well-Root PT (Vericom Co., Chuncheon, Korea), a premixed cement, has recently been introduced to the market. Well-Root PT is clinically used in many areas such as pulp capping, perforation and resorption repair, root tip filling and apexification. As Well-Root PT is available in pre-mixed capsule form, it can provide a consistent and adequate consistency and clinical convenience. Well-Root PT can be applied directly into the oral cavity by placing the capsule in a syringe. In addition, Well-Root PT has a shorter setting time than MTA (approximately 5 minutes for initial setting and 45 minutes for final setting) . Despite these advantages, there is no study in the literature on the effect of Well-Root PT on postoperative pain and tooth vitality after pulpotomy in mature permanent molars. Therefore, the aim of this study was to evaluate the effect of Well-Root PT on postoperative pain and tooth vitality in vivo in comparison with MTA (BIO MTA+).