Prognosis of nonsurgical endodontic treatment has been extensively studied over the last decades; however, the data obtained is insuffi cient. The purpose of this study was to retrospectively analyze the outcomes of initial endodontic treatment, and tooth retention over 5 years. Materials and Methods: In this study, the treatment database of the King Khalid University Dental Clinics (KKUCD) is used to identify patient's undergone nonsurgical endodontic treatment in the year 2009. 779 patients

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... re treated by students, interns, and specialists in KKUCD. 205 patients (217 teeth) were recalled and examined their teeth presence (retention), endodontic lesion healing status, and medical history status. Results: Among the 217 teeth, 208 were retained and 9 were extracted in 5 years. The 217 teeth, 34 treated by specialists, 90 by interns, and 93 by students. The 9 extracted teeth were 3 treated by specialists, 1 by interns, and 5 by students. The 9 extracted teeth were 4 maxillary premolars, 2 maxillary molars, 2 mandibular premolars, and 1 mandibular anterior. Using Chi-square tests, survival endodontic cases which had uncertain to successful endodontic healing are 27 treated by specialists, 86 by interns, and 75 by students. There was a signifi cant diff erence (P = 0.000) in endodontic success and survivability between the normal medical status and insulin-dependent diabetes patients. Conclusions: Within the limitations of this study, the survivability of nonsurgical endodontic treatment is very highly predictable 90%. Prosthodontics consideration is highly important since all extracted teeth in the study were not crowned. Nonsurgical endodontic treatment within insulin-dependent diabetes patients has fair to poor prognosis, which shows a less rate of success in comparison to other compromised patients. How to cite this article: Abu-Melha AS, Alqahtani MT, Almufareh NA. Outcome of nonsurgical endodontic treatment: A 5-year recall. Int Dent Med J Adv Res 2016;2:1-3.