Antibiotic Prophylaxis in Third Molar Surgery
Summary
Extraction of impacted third molars is among the most frequent minor oral surgical procedures worldwide. Although the overall rate of postoperative infection or alveolar osteitis remains low, clinicians have traditionally prescribed antibiotics perioperatively to minimise surgical site infections, dry socket and related complications. Amoxicillin, alone or in combination with clavulanic acid, is the most commonly employed regimen, often administered as a single preoperative dose or a short postoperative course. However, the marginal benefits of routine antibiotic use must be weighed against the risk of adverse reactions, the low baseline incidence of complications and the global imperative to curb antimicrobial resistance. Current practice is moving towards risk-based protocols that tailor antibiotic use to patient factors such as systemic health, degree of impaction and local inflammatory status, while exploring adjunctive antiseptic measures and minimally invasive techniques to preserve the oral microbiome and reduce selection pressure for resistant strains.
Research from Nature Portfolio
No recent Nature Portfolio content available.
Antibiotic Prophylaxis in Third Molar Surgery publication trend
The graph below shows the total number of articles in antibiotic prophylaxis in third molar surgery across all publications each year (not limited to Nature Index journals).
Technical terms
Alveolar osteitis (dry socket): A painful postoperative condition characterised by premature loss of the blood clot from the extraction socket, leading to exposed bone and delayed healing.
Antimicrobial resistance (AMR): The ability of microorganisms to withstand treatment with antimicrobial agents, often driven by overuse or misuse of antibiotics.
Split-mouth design: A clinical trial format in which different treatments are applied to contralateral sites in the same patient, enabling within-subject comparisons.
Prophylaxis: Preventive treatment administered to reduce the risk of disease or complications before they occur.
Number needed to treat (NNT): The average number of patients who must receive a specific intervention to prevent one adverse outcome compared with a control in a defined period.
References
- Firmicutes Dysbiosis After Chlorhexidine Prophylaxis in Healthy Patients Submitted to Impacted Lower Third Molar Extraction. Frontiers in Cellular and Infection Microbiology (2021).
- Comparative trial between the use of amoxicillin and amoxicillin clavulanate in the removal of third molars. Medicina Oral Patología Oral y Cirugia Bucal (2014).
- Is perioperative antibiotic prophylaxis in the case of routine surgical removal of the third molar still justified? A randomized, double-blind, placebo-controlled clinical trial with a split-mouth design. Clinical Oral Investigations (2022).
About these summaries
This Nature Research Intelligence Topic summary is created with the cited references and a large language model. We take care to ground generated text with facts, and have systems in place to gain human feedback on the overall quality of the process in line with our AI principles. We strive to create accurate and useful summaries for people unfamiliar with the research topic and that supports this goal. These pages are a beta release and will be updated as we learn how best to help people gain value from a research topic summary.
Turn complex research questions into confident strategic decisions
When you're under pressure to set direction, justify investment, or understand your competitive position, you need more than raw data — you need trusted insights you can act on.
Benchmark your performance against global peers using robust, methodologically sound analysis.
Combine quantitative metrics with qualitative expert insight to uncover strengths, gaps and emerging opportunities.
Gain tailored, decision-ready recommendations aligned to your strategic priorities.
Talk to us to learn more about our data dashboards and bespoke strategy reports.
Grow research skills, confidence and careers with training built for every stage of the research lifecycle.
Developed with Nature Portfolio journal Editors and internationally renowned experts. Discover three ways to learn:
Self-paced, online courses in convenient bite-sized units, covering key skills across scientific writing, publishing, grant writing, data analysis, and more.
Expert trainer-led workshops with hands-on exercises and real-time feedback across core research skills, delivered via interactive group sessions.
Editor-led workshops combining core principles in writing and publishing, personalised 1:1 feedback from Nature Portfolio Editors and hands-on exercises.
Explore course catalogues and workshop agendas, enquire about the options or request institutional pricing.