Impacted lower third molars a clinical study 0f 140 cases


The aim of this study was to assess the position ofimpacted lower third molars, the indications for extraction, and thepost-operative complications. Records of patients who attendedMaysan general hospital between March 2008 and April 2009 forsurgical removal of mandibular third molars. The angulation typeand depth of impaction were determined by reviewing theorthopantomograms. A total of 140 impacted teeth were surgicallyextracted from 132 patients (69 males, 63 females). The reasons forextraction include recurrent pericoronitis (55%) followed by caries(25%) and prophylactic purposes (20%). Mesioangular impactionsaccounted for (49.29 %) and Level 1 position of impactionaccounted for (65%) of extractions. 40 complications (28.57%),including persistent pain and swelling, infection, dry socket,Trismus and ulceration were reported. Persistent pain and swellingwas the most common complications followed by infection. Therewas no significant relationship between the angulation, level ofimpaction and the occurrence of complications. Mesioangular typeand Level A position of impaction were the most commonimpaction. Although the association was not significant, highfrequency of post-operative complications was observed inmesioangular, horizontal and levels a position of impaction.