PULP TISSUE MORPHOLOGY IN EXPERIMENTAL PULPITIS BY USING DIFFERENT MATERIALS FOR DIRECT PULP CAPPING

Abstract

The minimally invasive concept of treatment in clinical medicine and, in particular, in dentistry is associated with the introduction of pulp-saving treatment technologies into clinical practice. The aim of the study was to identify the reaction of the structure of pulp tissues in traumatic pulpitis in the experiment using various means and techniques of direct pulp capping. The experiment was carried out on male minipigs aged 4–5 months with deciduous dentition. Milk molars were selected for trepanation. After teeth preparation under anesthesia, the crowns of the first and second milk premolars were trepanned on the vestibular surface in the cervical region with pulp probing until bleeding. After bleeding has been stopped, the trepanation hole was closed with various preparations. For direct pulp capping we used mineral trioxide aggregate (MTA) — containing silicate material and glass ionomer cement (GIC). All samples of teeth with experimental pulpitis using MTA-containing materials (Rutdent), tricalcium silicate materials (Biodentin) and even GIC (Vitremer) did not reveal inflammatory changes in the pulp tissues when they were directly covered with various materials. Of all the experimental samples of pulpitis, inflammation was detected with a sample of the Rutdent material with fragment damage to the pulp. With traumatic pulpitis and the use of various materials for direct pulp capping, active reparative regeneration of pulp tissue was revealed. All studied materials contribute to the reparation of the pulp after damage and reduction of pulp inflammation.