Related Experiment Video
Updated: May 22, 2026

Adjunctive Diode Laser Therapy and Probiotic Lactobacillus Therapy in the Treatment of Periodontitis and Peri-Implant Disease
Published on: May 9, 2022
[Short-term antibiotic prophylaxis versus long-term antibiotic prophylaxis in major clean-contaminated maxillofacial
Julio Villanueva M1, Ignacio Araya C, Nicolás Yanine M
1Departamento de Cirugía Maxilofacial, Facultad de Odontología, Universidad de Chile, Santiago, Chile. javm@vtr.net
Introduction:
There is no consensus on the most appropriate duration of antimicrobial prophylaxis (single or multiple dose) in clean-contaminated maxillofacial surgery.
Objective:
To determine whether short-term antimicrobial prophylaxis is effective compared to long-term antimicrobial prophylaxis in preventing surgical site infection in clean-contaminated maxillofacial surgery.
Patients And Methods:
The cohort study included 527 patients. We compared the incidence of surgical site infection in two groups. One group received short-term antibiotic prophylaxis (single dose) and the other group, long-term antimicrobial prophylaxis (multiple dose).
Results:
The single dose group showed 5.7% of postoperative infections and the multiple-dose group, 5.9%, with an odds ratio of 0.96 (95% CI 0.44 to 2.10) p = 0.9214.
Conclusion:
No significant differences were found between the infection incidences in the single dose antibiotic prophylaxis group compared with the use of multiple doses.
Insights
For clean-contaminated maxillofacial surgery, single-dose antibiotic prophylaxis is as effective as multiple doses in preventing surgical site infections. This finding addresses the lack of consensus on optimal antimicrobial prophylaxis duration.
Area of Science:
- Oral and Maxillofacial Surgery
- Infectious Disease Prevention
- Surgical Site Infection (SSI) Research
Background:
- Current guidelines lack consensus on the optimal duration of antimicrobial prophylaxis for clean-contaminated maxillofacial surgery.
- The choice between single-dose and multiple-dose prophylaxis remains debated.
- Understanding the efficacy of different prophylaxis durations is crucial for patient outcomes.
Purpose of the Study:
- To compare the effectiveness of short-term (single-dose) versus long-term (multiple-dose) antimicrobial prophylaxis.
- To determine the impact of prophylaxis duration on surgical site infection rates in maxillofacial surgery.
- To provide evidence-based recommendations for antimicrobial use in this surgical context.
Main Methods:
- A cohort study involving 527 patients undergoing clean-contaminated maxillofacial surgery.
- Comparison of surgical site infection incidence between two groups: single-dose prophylaxis and multiple-dose prophylaxis.
- Statistical analysis to determine the odds ratio and significance of infection rate differences.
Main Results:
- The single-dose prophylaxis group experienced a 5.7% postoperative infection rate.
- The multiple-dose prophylaxis group had a 5.9% postoperative infection rate.
- The odds ratio for infection was 0.96 (95% CI 0.44 to 2.10), with a p-value of 0.9214, indicating no significant difference.
Conclusions:
- No statistically significant difference in surgical site infection rates was observed between single-dose and multiple-dose antimicrobial prophylaxis.
- Short-term (single-dose) antimicrobial prophylaxis appears to be as effective as long-term (multiple-dose) prophylaxis in this patient population.
- These findings suggest that a single dose may be sufficient for antimicrobial prophylaxis in clean-contaminated maxillofacial surgery.
Related Concept Videos
Tonsillitis II: Management
Pharmaceutical Alternatives: Stability-Related Therapeutic Nonequivalence
Chronic Pharyngitis
Etiology
It often arises from persistent viral or bacterial infections affecting sinuses and tonsils.
Additional contributing factors include inadequate dental hygiene, mouth breathing, recurring tonsillitis, allergic rhinitis, laryngopharyngeal reflux, and exposure to smoke, chemicals, and other environmental pollutants. Allergic reactions to pollen, mold, and pet dander, chronic cough, excessive voice usage,...
Acute Pyelonephritis II: Diagnostic Studies and Management
Endocarditis III: Medical Management
Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy
Sigmoidoscopy
Sigmoidoscopy is a diagnostic procedure that uses a flexible sigmoidoscope equipped with a light source and camera to examine the rectum and sigmoid colon. The procedure involves inserting the tube through the anus...