A BSTRACT Preserving the natural dentition in its normal form and function is one of the major goals of endodontic treatment. Re-establishing the lost vitality and development of root maturation in immature permanent teeth with pulp necrosis/apical periodontitis is quiet challenging clinically. The very basis of regenerative endodontics relies on the concept of tissue engineering using stem cells, biomimetic scaffold, and bioactive growth factors to regenerate the pulp tissue damaged by microbial infection, injury, or developmental defects. In clinical endodontics, this approach is referred to as a “paradigm shift.” Even though repair instead of true regeneration is achieved with current protocols, it is hoped that further research in the area of stem-cell-based tissue engineering will allow for true regeneration and improved treatment outcomes. The aim of this review is to discuss about the various aspects of regenerative endodontics, current clinical protocols, and the future of pulp regeneration techniques.
A BSTRACT Aim: The aim of this study was to evaluate in vitro the efficacy of pantoprazole, a proton pump inhibitor, alone, and in combination with calcium hydroxide against Enterococcus faecalis , a star survivor in endodontic pathology. Materials and Methods: Teeth were inoculated with E. faecalis strains MTCC 439 and were divided into groups. Group 1 used saline as the negative control, Group 2 used calcium hydroxide, Group 3 used pantoprazole alone, and Group 4 used calcium hydroxide along with pantoprazole. They were incubated and dentine harvesting was performed. Colonies were counted using a digital counting machine. Data were statistically analyzed. Results: Group 4 was found to be the most effective against the pathogen. Discussion: This study indicates that the association of calcium hydroxide with the proton pump inhibitor pantoprazole can be successfully used as an intracanal medicament against E. faecalis .
Background: Microorganisms are considered to be the primary cause behind persistent pulpoperiapical pathologies as well as endodontic failures. It has been found that Enterococcus faecalis is one of the most commonly isolated organisms in failed endodontic treatment. Proper and appropriate mechanical instrumentation is necessary to eradicate these microorganisms. Aims and Objectives: The aim of this study was to compare antimicrobial efficacy of various root canal instrumentation techniques. This study was designed to compare antimicrobial efficacy of root canal preparation using hand K-files, hand Pro Taper files, and Pro Taper rotary files. Materials and Methods: Forty intact maxillary premolars extracted for orthodontic reasons were used. After extirpation of pulp, teeth are decoronated and autoclaved. Then the root canals were infected with E. faecalis suspension and the teeth were incubated at 37°C for 24 h. Thereafter the teeth were divided into five groups and were prepared using the following instruments: group 1 (hand K-files), group 2 (hand Pro Taper files), group 3 (Pro Taper rotary files), group 4 (Control I; treatment consists of irrigation with 1 mL of sterile physiological saline with no instrumentation), and group 5 (Control II; teeth received no treatment at all). Before and after treatments, samples were taken from the root canals for culture and were transferred to physiological saline. Results were evaluated after 24-h incubation in selective culture medium. Results: The results showed that the teeth prepared with Pro Taper rotary files showed significant reduction in number of bacteria from the root canals.
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