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Abstract The aim of the present study was to evaluate the efficacy of hyaluronic acid for management of postoperative edema, trismus and pain after surgical removal of impacted mandibular third molars. The study was carried out on twenty four adult patients from those who attended to the outpatient oral surgery clinic in the faculty of Dentistry, Suez Canal University. group 1- (control group): there were eight females and four males with a total of twelve patients. The mean age was 28.6 ± 4.6 years ranged from twenty four to thirty five years. group 2- (Hyaluronic Acid group): there were seven females and five males with a total of twelve patients. The mean age was 29.8 ± 4.9 years ranged from twenty three to thirty five years. All patients were instructed not to take antibiotics, analgesics and anti- inflammatory agents at least one day before operation. Duration of operation was recorded from time of incision to the time of last suture in minutes. The following data were collected from each patient: • Edema was measured by calculating the percentage of increase in area measurement taking the preoperative measurement as baseline measurements. This was represented in our study by seven .different facial lines. These lines were: • from the tragus of the ear to the lateral border of alaeque nasi • from the tragus of the ear to the corner of the mouth • from the tragus of the ear to soft tissue pogonion 57 Summary & conclusion • from the angle of the mouth to lateral corner of the eye. • from the angle of the mouth to lateral border of alaeque nasi. • from the angle of the mouth to corner of the mouth. • from the angle of the mouth to soft tissue pogonion. • Trismus was measured by calculating the interincisal distance between the mesio-incisal angles of upper central incisor at maximum mouth opening taking the preoperative measurement as abaseline for the measurements. • Pain was recorded by the VAS score. Postoperative edema, trismus and pain assessment were done at 1st and 3rd days and after one week. The statistical analysis of edema revealed that there was a non significant difference between control group and hyaluronic group in all postoperative follow up days. Regarding trismus, no significant differences between the measurements of interincisal distances between the two groups throughtout the whole postoperative period were found. Full recovery of trismus had taken place after one week. Statistical analysis of pain intensity scores revealed that there was significant difference between the two groups throughout the whole postoperative period. |