Relationship between Radiographic and non-radiographic Factors, and Surgical Complications in impacted mandibular third molar surgery

Background and Aim: Surgical extraction of mandibular third molar is the most prevalent oral surgery. Many factors can affect subsequent complications of it. This study aimed to assess radiographic and non-radiographic factors of impacted mandibular third molar and determine the relationship between these factors and surgical complications. Material and Methods: This study has a prospective cohort design and was conducted on 53 patients who had indication of impacted mandibular third molar surgery, in 2020 at Shahid Sadoughi day clinic in Isfahan. the effect of root morphology, Pederson scale, mandibular canal relationship, tooth exposure, and number of operated teeth on surgical complications including pain onset and pain amount, and surgical duration was evaluated. the data was analyzed with Spearman's correlation coefficient, Kruskal–Wallis analysis, Fisher's exact test, and Mann–Whitney test (α<0/05). Results: The relationship between molar position and surgical duration was statistically significant (p<0/01). the relationship between relative depth, ramus relationship, and root morphology, with surgical duration was also statistically significant (p<0/05). the relationship between age and post-surgical pain scale was also statistically significant (p<0/05). the relationship between Pederson scale, gender, number of extracted teeth, tooth exposure, and mandibular canal relationship with difficulty variables and surgical complications was not meaningful statistically (p>0/05). Conclusion: Molar position, ramus relationship, relative depth, and root morphology affect surgical duration and could be used in predictive models. Gender doesn’t affect surgical complications and couldn’t be beneficial in predictive models. Key words: Third Mollar, Impacted  teeth , Surgery, Dental Radioloy