A Scoping Review of 4 Decades of Outcomes in Nonsurgical Root Canal Treatment, Nonsurgical Retreatment, and Apexification Studies—Part 1: Process and General Results

Outcome of root canal retreatment performed in single visit. A cohort retrospective study.

“…However, radiographic healing is a cliniciancentered end-point relating to patients' disease and has been the focus of the guidelines of the European Society of Endodontology (ESE) 2006 (24,25) and a bulk of studies (26,27) throughout the years to assess the presence and course of apical periodontitis after treatment (28) ; and it is better observed at longer time points (27,28,29) . This is why the cases were included in the present study only if they were followed up for at least 6 months, and the results showed that the mean follow up time was 18.8 months; which is in line with the guidelines by the ESE (18,24,25) , most randomized controlled trials (20), the average healing time reported in previous studies (9) , and because any additional intervention is usually recognized with the 1st 2 years after retreatment (10) .…”

“…The number of visits needed for treatment is becoming one the patients' most asked questions, and maybe one of their decisive factors to undergo treatment. Single-visit treatment is more prevalent nowadays (20); however, when retreatment is indicated, the type of practice influences the decision-making process (2), where the level of training and experience of the operators is an important consideration (5). Half of the retreatment studies were performed by general practitioners and students (5,10,21); therefore, the aim of the present study was to assess, retrospectively, the short and…”

“…Moreover, the majority of investigations were conducted in hospital or school setting, with few being conducted in private practice (5,20) ; while the site of operation in the present study was the endodontic clinics in DHA ensuring standardized operational procedures, using current techniques and materials, as well as homogenous patient pool, and consistent information collection and data retrieval.…”

“…Thus, an excel sheet was created to gather all the needed information: starting from patients' demographics, through preoperative clinical and radiographic condition of the included cases, procedural steps, then short and long term outcome criteria. This tool, though very much conforming to the recently suggested template by Azarpazooh et al (20,22) , it was tailored at the time of the investigation for clear standardized recording of the research data (22) .…”

Comparison Study of Diagnosis and Treatment Planning for Dental Infections between Dental Students and Practitioners

“…Several periodontal prognostic models were developed and evaluated [ 9 , 10 , 19 ], but they might not depict the comprehensive individual tooth prognosis with their limited consideration for endodontic and restorative aspects [ 20 ]. While ample studies have reported the prognosis of initial endodontic therapy, the reported prognosis is diverse and difficult to interpret by clinicians due to their heterogeneities in outcome measurements, criteria, and classification along with a lack of pre-, intra-, and postoperative clinical and radiographic data [ 21 , 22 ]. Nevertheless, the presence of preoperative PARL was reported as a major indicator of endodontic postoperative healing or failure [ 23 ].…”