{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,6]],"date-time":"2026-02-06T23:52:46Z","timestamp":1770421966324,"version":"3.49.0"},"reference-count":16,"publisher":"American Dental Society of Anesthesiology (ADSA)","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2023,3,1]]},"abstract":"<jats:sec><jats:title>Objective<\/jats:title><jats:p>The risk of a spontaneous surgical fire increases as oxygen concentrations surrounding the surgical site rise above the normal atmospheric level of 21%. Previously published in vitro findings imply this phenomenon (termed oxygen pooling) occurs during dental procedures under sedation and general anesthesia; however, it has not been clinically documented.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Thirty-one children classified as American Society of Anesthesiologists I and II between 2 and 6 years of age undergoing office-based general anesthesia for complete dental rehabilitation were monitored for intraoral ambient oxygen concentration, end-tidal CO2, and respiratory rate changes immediately following nasotracheal intubation or insertion of nasopharyngeal airways, followed by high-speed suctioning of the oral cavity during simulated dental treatment.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Mean ambient intraoral oxygen concentrations ranging from 46.9% to 72.1%, levels consistent with oxygen pooling, occurred in the nasopharyngeal airway group prior to the introduction of high-speed oral suctioning. However, 1 minute of suctioning reversed the oxygen pooling to 31.2%. Oropharyngeal ambient oxygen concentrations in patients with uncuffed endotracheal tubes ranged from 24.1% to 26.6% prior to high-speed suctioning, which reversed the pooling to 21.1% after 1 minute.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>This study demonstrated significant oxygen pooling with nasopharyngeal airway use before and after high-speed suctioning. Uncuffed endotracheal intubation showed minimal pooling, which was reversed to room air ambient oxygen concentrations after 1 minute of suctioning.<\/jats:p><\/jats:sec>","DOI":"10.2344\/anpr-70-01-02","type":"journal-article","created":{"date-parts":[[2023,3,30]],"date-time":"2023-03-30T11:45:59Z","timestamp":1680176759000},"page":"3-8","source":"Crossref","is-referenced-by-count":3,"title":["Comparison of Oropharyngeal Oxygen Pooling and Suctioning During Intubated and Nonintubated Dental Office-Based Anesthesia"],"prefix":"10.2344","volume":"70","author":[{"given":"Rebecca R.","family":"Rafla","sequence":"first","affiliation":[{"name":"*Private Practice, Pediatric Dentistry, Indianapolis, Indiana"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mark A.","family":"Saxen","sequence":"additional","affiliation":[{"name":"\u2020Clinical Associate Professor, Department of Oral Medicine, Pathology and Radiology, Riley Hospital for Children, Indiana University School of Dentistry, Indianapolis, Indiana"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Juan F.","family":"Yepes","sequence":"additional","affiliation":[{"name":"\u2021Professor of Pediatric Dentistry, Riley Hospital for Children, Indiana University School of Dentistry, Indianapolis, Indiana"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"James E.","family":"Jones","sequence":"additional","affiliation":[{"name":"\u00a7Starkey Research Professor, Department of Pediatric Dentistry, Riley Hospital for Children, and Professor of Clinical Pediatrics, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"LaQuia A.","family":"Vinson","sequence":"additional","affiliation":[{"name":"||Program Director of Pediatric Dentistry, Riley Hospital for Children, Indiana University School of Dentistry, Indianapolis, Indiana"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1191","published-online":{"date-parts":[[2023,3,28]]},"reference":[{"key":"2023033015452567500_","doi-asserted-by":"crossref","unstructured":"Bosack RC, Bruley ME, VanCleave AM, Weaver JM. 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