Unilateral Mastication Evaluated Using Asymmetric Functional Tooth Units as a Risk Indicator for Hearing Loss
Background: Some previous studies reported hearing ability can be reduced by impaired masticatory ability, but there has been little evidence reported of an association between hearing loss and unilateral mastication. Therefore, this study aimed to investigate the relationship between unilateral mas...
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| Format: | Article |
| Language: | English |
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Japan Epidemiological Association
2019-08-01
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| Series: | Journal of Epidemiology |
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| Online Access: | https://www.jstage.jst.go.jp/article/jea/29/8/29_JE20180052/_pdf |
| _version_ | 1818483159085350912 |
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| author | Joo-Young Lee Eun-Song Lee Gyung-Min Kim Hoi-In Jung Jeong-Woo Lee Ho-Keun Kwon Baek-Il Kim |
| author_facet | Joo-Young Lee Eun-Song Lee Gyung-Min Kim Hoi-In Jung Jeong-Woo Lee Ho-Keun Kwon Baek-Il Kim |
| author_sort | Joo-Young Lee |
| collection | DOAJ |
| description | Background: Some previous studies reported hearing ability can be reduced by impaired masticatory ability, but there has been little evidence reported of an association between hearing loss and unilateral mastication. Therefore, this study aimed to investigate the relationship between unilateral mastication (UM), estimated from individual functional tooth units (FTUs), and hearing loss in a representative sample of Korean adults. Methods: The analyzed data were obtained from 1,773 adults aged 40–89 years who participated in Korean national survey. Hearing loss was defined as a pure-tone average of >25 dB at frequencies of 0.5, 1, 2, and 4 kHz in either ear. In each subject, UM was calculated as the difference in the sums of the FTU scores, which is an index of posterior tooth occlusion, on the two sides of the oral cavity. The scores were used to classify the UM into low, moderate, and high. The adjusted odds ratios (aORs) and their 95% confidence intervals (CIs) were calculated in multivariable logistic regression analyses. Results: When controlling for sociodemographic factors, the aOR for hearing loss was 3.12 (95% CI, 1.21–8.03) for high UM relative to low UM. This association remained in a fully-adjusted model containing factors related to noise exposure (aOR 2.88; 95% CI, 1.12–7.46). Conclusion: Adults with high UM as measured using FTUs showed a higher occurrence of hearing loss than those with low UM. |
| first_indexed | 2024-12-10T11:56:39Z |
| format | Article |
| id | doaj.art-d99731a3206a4f41aed9beef8e506e3b |
| institution | Directory Open Access Journal |
| issn | 0917-5040 1349-9092 |
| language | English |
| last_indexed | 2024-12-10T11:56:39Z |
| publishDate | 2019-08-01 |
| publisher | Japan Epidemiological Association |
| record_format | Article |
| series | Journal of Epidemiology |
| spelling | doaj.art-d99731a3206a4f41aed9beef8e506e3b2022-12-22T01:49:45ZengJapan Epidemiological AssociationJournal of Epidemiology0917-50401349-90922019-08-0129830230710.2188/jea.JE20180052Unilateral Mastication Evaluated Using Asymmetric Functional Tooth Units as a Risk Indicator for Hearing LossJoo-Young Lee0Eun-Song Lee1Gyung-Min Kim2Hoi-In Jung3Jeong-Woo Lee4Ho-Keun Kwon5Baek-Il Kim6Department of Preventive Dentistry & Public Oral Health, Brain Korea 21 PLUS Project, Yonsei University College of Dentistry, Seoul, Republic of KoreaDepartment of Preventive Dentistry & Public Oral Health, Brain Korea 21 PLUS Project, Yonsei University College of Dentistry, Seoul, Republic of KoreaDepartment of Preventive Dentistry & Public Oral Health, Brain Korea 21 PLUS Project, Yonsei University College of Dentistry, Seoul, Republic of KoreaDepartment of Preventive Dentistry & Public Oral Health, Brain Korea 21 PLUS Project, Yonsei University College of Dentistry, Seoul, Republic of KoreaDepartment of Preventive Dentistry & Public Oral Health, Brain Korea 21 PLUS Project, Yonsei University College of Dentistry, Seoul, Republic of KoreaDepartment of Preventive Dentistry & Public Oral Health, Brain Korea 21 PLUS Project, Yonsei University College of Dentistry, Seoul, Republic of KoreaDepartment of Preventive Dentistry & Public Oral Health, Brain Korea 21 PLUS Project, Yonsei University College of Dentistry, Seoul, Republic of KoreaBackground: Some previous studies reported hearing ability can be reduced by impaired masticatory ability, but there has been little evidence reported of an association between hearing loss and unilateral mastication. Therefore, this study aimed to investigate the relationship between unilateral mastication (UM), estimated from individual functional tooth units (FTUs), and hearing loss in a representative sample of Korean adults. Methods: The analyzed data were obtained from 1,773 adults aged 40–89 years who participated in Korean national survey. Hearing loss was defined as a pure-tone average of >25 dB at frequencies of 0.5, 1, 2, and 4 kHz in either ear. In each subject, UM was calculated as the difference in the sums of the FTU scores, which is an index of posterior tooth occlusion, on the two sides of the oral cavity. The scores were used to classify the UM into low, moderate, and high. The adjusted odds ratios (aORs) and their 95% confidence intervals (CIs) were calculated in multivariable logistic regression analyses. Results: When controlling for sociodemographic factors, the aOR for hearing loss was 3.12 (95% CI, 1.21–8.03) for high UM relative to low UM. This association remained in a fully-adjusted model containing factors related to noise exposure (aOR 2.88; 95% CI, 1.12–7.46). Conclusion: Adults with high UM as measured using FTUs showed a higher occurrence of hearing loss than those with low UM.https://www.jstage.jst.go.jp/article/jea/29/8/29_JE20180052/_pdfepidemiologyfunctional tooth unitshearing lossoral healthunilateral mastication |
| spellingShingle | Joo-Young Lee Eun-Song Lee Gyung-Min Kim Hoi-In Jung Jeong-Woo Lee Ho-Keun Kwon Baek-Il Kim Unilateral Mastication Evaluated Using Asymmetric Functional Tooth Units as a Risk Indicator for Hearing Loss Journal of Epidemiology epidemiology functional tooth units hearing loss oral health unilateral mastication |
| title | Unilateral Mastication Evaluated Using Asymmetric Functional Tooth Units as a Risk Indicator for Hearing Loss |
| title_full | Unilateral Mastication Evaluated Using Asymmetric Functional Tooth Units as a Risk Indicator for Hearing Loss |
| title_fullStr | Unilateral Mastication Evaluated Using Asymmetric Functional Tooth Units as a Risk Indicator for Hearing Loss |
| title_full_unstemmed | Unilateral Mastication Evaluated Using Asymmetric Functional Tooth Units as a Risk Indicator for Hearing Loss |
| title_short | Unilateral Mastication Evaluated Using Asymmetric Functional Tooth Units as a Risk Indicator for Hearing Loss |
| title_sort | unilateral mastication evaluated using asymmetric functional tooth units as a risk indicator for hearing loss |
| topic | epidemiology functional tooth units hearing loss oral health unilateral mastication |
| url | https://www.jstage.jst.go.jp/article/jea/29/8/29_JE20180052/_pdf |
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