Effects of clindamycin and amoxycillin as prophylaxis against early implant failure: double-blinded randomized clinical trial

Abstract

Objective The objective of this randomized controlled clinical trial (RCT) was to compare the frequency of early implant failure, postoperative infection, and pain/inflammation and the degree of implant stability between healthy non-penicillinallergic individuals receiving a single prophylactic dose of 600 mg clindamycin versus 2 g amoxicillin at 1 h before implant surgery. Materials and methods A single-center double-blinded RCT study with parallel groups was undertaken. Eighty-two patients fulfilled study inclusion criteria and were randomly assigned to the amoxicillin (n = 41) or clindamycin (n = 41) group. The primary outcome variable was early implant failure. The presence of infection was evaluated immediately after surgery and on days 7, 14, 30, and 90, and postoperative pain/inflammation was assessed daily on days 1 to 7 post-surgery. Resonance frequency analysis was used to measure primary and secondary implant stability. Results One early implant failure was observed (1/81), in a patient from the amoxicillin group. No statistically significant between-group differences were observed in early implant failure rate, postoperative infection rate up to 90 days, pain/ inflammation scores during the first week post-surgery, or primary or secondary stability values. Conclusions A single dose of 600 mg clindamycin before implant surgery does not increase the risk of early implant failure or infection. Clinical relevance These findings suggest that a single dose of 600 mg clindamycin at 1 h before implant surgery is a safe antibiotic prophylactic approach; however, when a more prolonged antibiotic therapy is required, it appears advisable to prescribe an alternative antibiotic to avoid adverse effects.

Objective The objective of this randomized controlled clinical trial (RCT) was to compare the frequency of early implant failure, postoperative infection, and pain/inflammation and the degree of implant stability between healthy non-penicillinallergic individuals receiving a single prophylactic dose of 600 mg clindamycin versus 2 g amoxicillin at 1 h before implant surgery. Materials and methods A single-center double-blinded RCT study with parallel groups was undertaken. Eighty-two patients fulfilled study inclusion criteria and were randomly assigned to the amoxicillin (n = 41) or clindamycin (n = 41) group. The primary outcome variable was early implant failure. The presence of infection was evaluated immediately after surgery and on days 7, 14, 30, and 90, and postoperative pain/inflammation was assessed daily on days 1 to 7 post-surgery. Resonance frequency analysis was used to measure primary and secondary implant stability. Results One early implant failure was observed (1/81), in a patient from the amoxicillin group. No statistically significant between-group differences were observed in early implant failure rate, postoperative infection rate up to 90 days, pain/ inflammation scores during the first week post-surgery, or primary or secondary stability values. Conclusions A single dose of 600 mg clindamycin before implant surgery does not increase the risk of early implant failure or infection. Clinical relevance These findings suggest that a single dose of 600 mg clindamycin at 1 h before implant surgery is a safe antibiotic prophylactic approach; however, when a more prolonged antibiotic therapy is required, it appears advisable to prescribe an alternative antibiotic to avoid adverse effects.