Yazd Journal of Dental Research

Introduction: Impacted third molar surgery is followed by inflammatory reactions which can cause pain, swelling and trismus. Therefore, the present study was accomplished aiming to determine mouth opening limitation after mandibular third molar surgery in patients referring to the oro-facial surgery department of Yazd dental college within the academic year of 2012-2013 . Methods: In this descriptive cross-sectional study, 63 patients participated who were suffering from impaction of mandibular third molar. The pre and mid operation factors were logged in a checklist. Maximum mouth opening, according to the space between anterior maxillary and mandibular teeth, was measured before and during the operation in time ranges of 1, 3 and 7 days with Vernir caliper. The study data were analyzed via SPSS software (ver.17) applying T-test. Results: In the present study, 63 patients participated who were 22 males (34.92%) and 41 females (65.08%) aged 18-30 years. Maximum mouth opening was significantly more on the seventh day than the third day in regard with lower age group(18-22), males, teeth with distoangular position, operation duration more than 30 minutes and duration of healing more than 12 days. (P< 0.001) Conclusion: According to the results of the current study, mouth opening limitation on the first, third and seventh day of operation revealed a significant relationship in regard with sex, tooth location, surgery duration and healing period.

Introduction: Impacted Third molar surgery is often associated with postoperative complications such as pain, swelling and trismus and dry socket. As the flap design is one of the factors that affect the severity of these effects, this study sought to evaluate the influence of modified triangular flap on dry socket compared to the envelop flap in patients referring to the department of oral &maxillofacial surgery at yazd dental school in 2013. Methods: In this double-blind prospective trial, 30 patients were examined who were candidates for extraction of bilaterally impacted lower third molar with the same difficultly index referring to the department of oral &maxillofacial surgery at yazd dental school in 2013. The influence of modified triangular flap and envelop flap on dry socket was investigated seven days after the surgery. In order to analyze the difference between the two groups statistically, SPSS software (version, 17) was utilized applying fisher exact and Man-Witney tests. Results: This study was examined on 15 females (50%) and 15 males (50%) with an average age of 24.46±3.97. Difficulty index of the teeth was 4-7 and frequency of dry socket for envelop flap was 16.7% and for modified triangular flap it was reported 3.3%, though this difference was not statistically significant(p-value>0.05). Conclusion:The findings of the present study demonstrated that the modified triangular flap design was associated with a lower incidence of dry socket.