ABSTRAKBactesyn is an antibiotic that contains suitamicillin. This antibiotic is a complex of combination between ampicillin and sulbactam in double ester bond. This makes Bactesyn become an antibiotic with broader spectrum. Lincomycin is an antibiotic, which is dental enough to treat dentoalveolar infections. This antibiotic is well known among the fellow dentist in Atma Jaya Hospital. It is obvious that these two medicines are very effective to deal with infections arising after operations of impacted teeth. The dose of Bactesyn is 375mg, given twice a day, whereas, Lincomycin is 500mg, given three times daily.