{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,3]],"date-time":"2026-10-03T16:32:03Z","timestamp":1791045123760,"version":"4.1.0"},"reference-count":30,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2024,4,9]],"date-time":"2024-04-09T00:00:00Z","timestamp":1712620800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>Background\/Introduction: Odontogenic infection is one of the main etiologies of deep neck infection (DNI). However, the relationship between chronic periodontitis (CP) and the incidence of DNI has not been examined. This study aimed to evaluate the incidence of DNI and peritonsillar abscess (PTA) after CP. Methods: The Korean National Health Insurance Service-National Sample Cohort 2002\u20132019 was used. In Study I, 4585 PTA patients were matched with 19,340 control I participants. A previous history of CP for 1 year was collected, and the odds ratios (ORs) of CP for PTA were analyzed using conditional logistic regression. In Study II, 46,293 DNI patients and 185,172 control II participants were matched. A previous history of CP for 1 year was collected, and conditional logistic regression was conducted for the ORs of CP for DNI. Secondary analyses were conducted in demographic, socioeconomic, and comorbidity subgroups. Results: In Study I, a history of CP was not related to the incidence of PTA (adjusted OR = 1.28, 95% confidence interval [CI] = 0.91\u20131.81). In Study II, the incidence of DNI was greater in participants with a history of CP (adjusted OR = 1.55, 95% CI = 1.41\u20131.71). The relationship between CP history and DNI was greater in groups with young, male, low-income, and rural residents. Conclusions: A prior history of CP was associated with a high incidence of DNI in the general population of Korea. Patients with CP need to be managed for the potential risk of DNI.<\/jats:p>","DOI":"10.3390\/jcm13082166","type":"journal-article","created":{"date-parts":[[2024,4,9]],"date-time":"2024-04-09T10:08:50Z","timestamp":1712657330000},"page":"2166","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Associations between Peritonsillar Abscess and Deep Neck Infection in Chronic Periodontitis Patients: Two Nested Case\u2014Control Studies Using a National Health Screening Cohort"],"prefix":"10.3390","volume":"13","author":[{"given":"So Young","family":"Kim","sequence":"first","affiliation":[{"name":"Department of Anatomy and Cell Biology, Seoul National University College of Medicine, Seoul 03080, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Il Hwan","family":"Park","sequence":"additional","affiliation":[{"name":"Department of Cardiovascular and Thoracic Surgery, Yonsei University Wonju College of Medicine, Wonju 26426, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5409-6798","authenticated-orcid":false,"given":"Chun Sung","family":"Byun","sequence":"additional","affiliation":[{"name":"Department of Cardiovascular and Thoracic Surgery, Yonsei University Wonju College of Medicine, Wonju 26426, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1655-9549","authenticated-orcid":false,"given":"Hyo Geun","family":"Choi","sequence":"additional","affiliation":[{"name":"Mdanalytics, Seoul 06349, Republic of Korea"},{"name":"Suseoseoulent Clinic, Seoul 06349, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2441-0448","authenticated-orcid":false,"given":"Mi Jung","family":"Kwon","sequence":"additional","affiliation":[{"name":"Department of Pathology, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang 14068, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ji Hee","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang 14068, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joo-Hee","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang 14068, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chang Wan","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Cardiovascular and Thoracic Surgery, Yonsei University Wonju College of Medicine, Wonju 26426, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,4,9]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"459","DOI":"10.1016\/j.otc.2008.01.002","article-title":"Deep neck infection","volume":"41","author":"Vieira","year":"2008","journal-title":"Otolaryngol. 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