Modern day endodontics is undergoing a massive change with the introduction of new molecular based techniques for microbial identification. This review focuses on the microbiota in untreated and root-filled canals. It will also describe briefly the recent developments in microbial identification and the mechanisms by which certain species of microbes are able to invade and establish themselves in the root canal.
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BMC Oral Health
January 2025
Department of Endodontics, School of Dentistry, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Objectives: This study aimed to compare the marginal adaptation of a cold ceramic (CC) sealer with the single-cone obturation technique with that of an AH-26 sealer with the lateral compaction technique in single-canal teeth.
Materials And Methods: In this in vitro experimental study, the root canals of 24 extracted single-rooted single-canal teeth were instrumented to F3 files by the crown-down technique and randomly assigned to 2 groups (n = 12). The root canals were obturated with a CC sealer and single-cone obturation technique with 4% gutta-percha in group 1 and with an AH-26 sealer and lateral compaction technique with 2% gutta-percha in group 2.
Clin Oral Investig
January 2025
Department of Pedodontics, Faculty of Dentistry, Erciyes University, 38039, Kayseri, Türkiye.
Objectives: This study evaluates the effect of different irrigation solutions for postoperative pain in the regenerative endodontic treatments (RET) of necrotic teeth with open apex.
Materials And Methods: This study included necrotic, deeply carious lower molars of 42 patients. Access cavities of the teeth were opened and working lengths were measured at the first visit.
J Oral Sci
January 2025
Department of Conservative Dentistry, School of Dentistry and Institute of Oral Bioscience, Jeonbuk National University.
Purpose: This study investigated the synergistic effects of reduced graphene oxide (RGO) on the antibacterial activity of three calcium hydroxide-based intracanal medicaments with different vehicles.
Methods: Multispecies biofilms were cultured in a bovine root canal model. Intracanal medicaments containing nonaqueous vehicles, including N-methyl-2-pyrrolidone (NMP; CleaniCal), propylene glycol (PG; UltraCal XS), and polyethylene glycol (PEG; Calcipex II), were placed in the model.
J Endod
January 2025
Faculdade São Leopoldo Mandic, Instituto de Pesquisa São Leopoldo Mandic, Área de Endodontia, Campinas, São Paulo, Brasil.
Introduction: This study evaluated the shaping ability of the single-file XP-endo Shaper (XP-S) system, employing an extended working time, and the Reciproc Blue #40/.06 (REC) instrument during the preparation of oval-shaped canals.
Methods: Eleven pairs of contralateral premolars with a single canal were divided into two groups (n = 11) according to the canal preparation protocol: XP-S (with an additional 45 seconds of instrumentation) and REC.
J Endod
January 2025
Department of Endodontics, Texas A&M College of Dentistry, 3302 Gaston Ave, Dallas, TX 75246. Electronic address:
Introduction: Endodontic access is often one of the most challenging aspects of treatment, particularly in cases involving locating calcified or missed canals, or when performing selective retreatments of a targeted root. Therefore, the purpose of this study is to compare the accuracy of targeted accesses made using prefabricated grid to those made using freehand techniques with CBCT measurements METHODS: Twenty extracted maxillary molars were mounted into the TrueJaw maxillary model (PlanB Dental, CA). To replicate a clinical scenario where the tooth is extensively restored or has a calcified pulp chamber, the build-up material was intentionally placed directly over the canal orifices.
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