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Preoperative Professional Tooth Cleaning as a Preventive Measure for Postoperative Pneumonia in OSCC Patients:
Chuqiao Xiao1, Yichun Yang2, Grace Paka Lubamba1,3
1State Key Laboratory of Oral Diseases, Department of Head and Neck Oncology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
Oral Diseases
|January 8, 2026
Summary
Professional tooth cleaning before oral cancer surgery significantly reduces the risk of postoperative pneumonia (PP) in patients with oral squamous cell carcinoma (OSCC). This simple intervention offers a protective effect, especially for older patients and those with specific risk factors.
Area of Science:
- Oral Surgery
- Oncology
- Infectious Disease Prevention
Background:
- Postoperative complications in oral squamous cell carcinoma (OSCC) surgery are a concern.
- The impact of preoperative professional tooth cleaning on these complications is not well-established.
Purpose of the Study:
- To investigate the association between preoperative professional tooth cleaning and postoperative complications in OSCC patients undergoing radical resection.
- To identify risk factors for postoperative pneumonia (PP) in this patient population.
Main Methods:
- Retrospective cohort study of 415 OSCC patients undergoing radical resection with free flap reconstruction.
- Propensity score matching created 174 pairs for analysis: tooth cleaning group vs. control group.
- Outcomes assessed included postoperative pneumonia, surgical site infection, fever, length of stay, and reoperation.
Main Results:
- Preoperative tooth cleaning was significantly associated with a reduced risk of postoperative pneumonia (OR=0.30).
- Independent risk factors for PP included tumor location (floor of mouth), hypertension, and longer operative duration.
- No significant association was found between tooth cleaning and other complications; periodontitis severity was not a risk factor for PP.
Conclusions:
- Preoperative professional tooth cleaning, performed one day before surgery, is linked to a decreased risk of postoperative pneumonia in OSCC patients.
- The protective effect of tooth cleaning was particularly evident in specific subgroups, including older patients, those with hypertension, periodontitis, or prolonged surgery.
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