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OHRQoL was assessed using two instruments, the Oral Impact on Daily Performances (OIDP) and the Oral Health Impact Profile\u201014 (OHIP\u201014). We used a causal model approach to identify potential confounders. The association between oral diseases, self\u2010reported symptoms, and OHRQoL was explored using multivariable negative binomial regression models, reporting rate ratios (RR) with 95% confidence intervals (CI).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>The final study sample consisted of 1189 individuals. The median (interquartile range [IQR]) OIDP and OHIP\u201014 scores were 0 (0\u20131) and 1 (0\u20134), respectively. OHRQoL was significantly associated with having fewer than 20 teeth (RR: 5.36 for OIDP and RR: 3.57 for OHIP\u201014), hyposalivation (RR: 1.38 for OHIP\u201014), xerostomia during daytime (RR: 2.25 for OIDP and RR: 2.07 for OHIP\u201014), xerostomia at night (RR: 1.72 for OIDP and RR: 1.71 for OHIP\u201014) and TMD pain (RR: 3.29 for OIDP and RR: 2.68 for OHIP\u201014).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>This study of Norwegian 70\u2010year\u2010olds indicates that preserving teeth is essential for OHRQoL and signals the importance of addressing hyposalivation, xerostomia, and TMD in the management of oral health in older adults.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/ger.70004","type":"journal-article","created":{"date-parts":[[2025,7,1]],"date-time":"2025-07-01T08:59:43Z","timestamp":1751360383000},"page":"591-601","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["The Association Between Oral Diseases, Symptoms, and Oral Health\u2010Related Quality of Life in 70\u2010Year\u2010Olds: A Cross\u2010Sectional Study"],"prefix":"10.1111","volume":"42","author":[{"ORCID":"https:\/\/orcid.org\/0009-0009-0740-5450","authenticated-orcid":false,"given":"Linda C. 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