TABLE 2.

Primary and secondary outcomes during postoperative implant surgery follow‐up (first at 7–14 days; second at 3–6 months) in the two study groups comparing preoperative antibiotic prophylaxis (n = 238) ^a with a placebo (n = 235)

Outcome	Group		p value
	Placebo	Antibiotics
Primary outcome
Implant failure, first and second follow‐ups	7 (3.0%)	6 (2.5%)	0.75
Secondary outcome
Postoperative infection, first follow‐up	5 (2.1%)	2 (0.8%)	0.25
Postoperative infection, second follow‐up	7 (3.0%)	5 (2.1%)	0.54
Adverse events, first and second follow‐ups	0	0	0

^aOne patient experienced implant failure at first follow‐up and was thus not included in the second follow‐up.