Table 3.

Frequency of antibiotic prescription in different pulpal and periapical conditions

Condition	No.	Percentage
Irreversible pulpitis, moderate/severe preoperative symptoms	198	49.5
Irreversible pulpitis with acute apical periodontitis, moderate/severe preoperative symptoms	354	88.5
Necrotic pulp with chronic apical periodontitis, no edema, no/mild preoperative symptoms	363	90.8
Necrotic pulp with acute apical periodontitis, no edema,moderate/severe preoperative symptoms	345	86.3
Necrotic pulp with chronic apical periodontitis, sinus tract present, no/mild preoperative symptoms	324	81.0
Necrotic pulp with acute apical periodontitis, edema present, moderate/severe preoperative symptoms	389	97.3