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The relationship between tooth loss and hypertension: a systematic review and meta-analysis. Sci Rep 2022; 12:13311. [PMID: 35922537 PMCID: PMC9349209 DOI: 10.1038/s41598-022-17363-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 07/25/2022] [Indexed: 11/16/2022] Open
Abstract
As tooth loss is the high end of periodontal problems and edentulous individuals are at higher risk of nutritional problems like obesity, understanding the association between tooth loss and hypertension is important for improving cardiovascular health. We searched for publications from the last two decades using three electronic databases (PubMed, Web of Science and Scopus) and conducted a systematic review and meta-analysis on the association between tooth loss and hypertension according to PRISMA-P guidelines. Quality assessments were performed using the Newcastle–Ottawa Scale and the GRADE approach. Twenty-four studies (20 cross-sectional, and 4 cohort) met the inclusion criteria for this review. Most cross-sectional studies showed that subjects with more tooth loss exhibited a greater proportion of hypertension and higher systolic blood pressure than those with less tooth loss. Meta-analyses revealed a statistically significant association between tooth loss and hypertension. The pooled odds ratios of hypertension for having tooth loss with no tooth loss and for edentulous with dentate were 2.22 (95% CI 2.00–2.45) and 4.94 (95% CI 4.04–6.05), respectively. In cohort studies, subjects with more tooth loss had a greater incidence of hypertension than those with less tooth loss during the follow-up period. The present systematic review and meta-analysis suggests that tooth loss is associated with an increased risk of hypertension and higher systolic blood pressure.
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Atanda AJ, Livinski AA, London SD, Boroumand S, Weatherspoon D, Iafolla TJ, Dye BA. Tooth retention, health, and quality of life in older adults: a scoping review. BMC Oral Health 2022; 22:185. [PMID: 35585618 PMCID: PMC9118621 DOI: 10.1186/s12903-022-02210-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 04/11/2022] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVE This scoping review describes the relationship between tooth retention, health, and quality of life in older adults. METHODS Seven databases were searched for English language articles for subjects ≥ 65 y from 1981 to 2021. Exposure was tooth retention (≥ 20), and outcomes were general/systemic health and quality of life. Methodological quality was assessed using the Newcastle-Ottawa Scale and Cochrane Risk of Bias 2.0 tool. RESULTS 140 articles were included, only four were randomized trials. Inter-rater agreement (κ) regarding study inclusion was 0.924. Most were assessed with low risk of bias (n = 103) and of good quality (n = 96). Most studies were conducted in Japan (n = 60) and Europe (n = 51) and only nine in the US. Tooth retention was referred to as "functional dentition" in 132 studies and "shortened dental arch" in 19 studies. Study outcomes were broadly synthesized as (1) cognitive decline/functional dependence, (2) health status/chronic diseases, (3) nutrition, and (4) quality of life. DISCUSSION There is a positive relationship between tooth retention, overall health, and quality of life. Older adults retaining ≥ 20 teeth are less likely to experience poorer health. Having < 20 teeth increases the likelihood for functional dependence and onset of disability, and may affect successful ageing. This review supports the general finding that the more teeth older adults retain as they age, the less likely they are to have adverse health outcomes. However, significant knowledge gaps remain which can limit decision-making affecting successful ageing for many older adults. This review highlights the need to consider, as an important marker of oral health and function, the retention of a functional minimum of a natural dentition, rather than a simple numeric score of missing teeth.
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Affiliation(s)
- Adejare Jay Atanda
- National Institute of Dental and Craniofacial Research, National Institutes of Health, 31 Center Dr., Suite 5B55, Bethesda, MD, USA.
- National Library of Medicine, National Institutes of Health, Bethesda, MD, USA.
| | - Alicia A Livinski
- National Institutes of Health Library, Office of Research Services, OD, National Institutes of Health, Bethesda, MD, USA
| | - Steven D London
- National Institute of Dental and Craniofacial Research, National Institutes of Health, 31 Center Dr., Suite 5B55, Bethesda, MD, USA
- National Library of Medicine, National Institutes of Health, Bethesda, MD, USA
- School of Dental Medicine, Stony Brook University, Stony Brook, NY, USA
| | - Shahdokht Boroumand
- National Institute of Dental and Craniofacial Research, National Institutes of Health, 31 Center Dr., Suite 5B55, Bethesda, MD, USA
| | | | - Timothy J Iafolla
- National Institute of Dental and Craniofacial Research, National Institutes of Health, 31 Center Dr., Suite 5B55, Bethesda, MD, USA
| | - Bruce A Dye
- National Institute of Dental and Craniofacial Research, National Institutes of Health, 31 Center Dr., Suite 5B55, Bethesda, MD, USA.
- School of Dental Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO, USA.
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Association between metabolic syndrome and tooth loss: A systematic review and meta-analysis. J Am Dent Assoc 2019; 150:1027-1039.e7. [PMID: 31761016 DOI: 10.1016/j.adaj.2019.07.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 07/14/2019] [Accepted: 07/17/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND The authors conducted a systematic review and meta-analysis to verify the existence and level of scientific evidence concerning the association between metabolic syndrome (MetS), as the main exposure, and tooth loss (TL), as the outcome. TYPES OF STUDIES REVIEWED Through electronic databases and partially through gray literature, the authors identified observational studies in adults. The authors used no date or language restrictions. The authors evaluated the studies' methodological quality by using the Newcastle-Ottawa Scale. The authors conducted a random-effects model meta-analysis. The authors assessed the quality of evidence by using the Grading of Recommendations Assessment, Development and Evaluation criteria. RESULTS Twelve studies met the eligibility criteria, and 9 were retained for the meta-analysis. Most were cross-sectional studies with good methodological quality. Participants with MetS had fewer teeth (standardized mean difference, -2.77; 95% confidence interval, -4.56 to -0.98) and an increased likelihood of lacking functional dentition (odds ratio, 2.37; 95% confidence interval, 1.89 to 2.96) than did those without MetS. The overall quality of evidence was very low. CONCLUSIONS AND PRACTICAL IMPLICATIONS Better-conducted longitudinal studies are necessary to establish a causal relationship between MetS and TL to inform the best strategies to prevent TL in populations with MetS.
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Lee JH, Han JS, Han K, Lee SY. Association between Diabetes and the Use of Removable Dental Prostheses among the Korean Population. J Korean Med Sci 2019; 34:e262. [PMID: 31650717 PMCID: PMC6813424 DOI: 10.3346/jkms.2019.34.e262] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 09/03/2019] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND A balanced nutrient intake is important for patients with diabetes. Even if individuals have the same number of residual natural teeth, there are large differences in the masticatory performance between edentulous sites restored with a fixed dental prosthesis, including dental implants, and those restored with a removable dental prosthesis. This study assessed whether the prevalence and control of diabetes differed based on the use of removable dental prostheses through an analysis of nationally representative data. METHODS Overall, 8,155 individuals (3,525 men and 4,630 women) aged ≥ 50 years were included in this study and were classified into the following 3 groups: group 1, did not use any removable dental prostheses (NF); group 2, used removable partial dentures (RPD); and group 3, used removable complete dentures on at least 1 jaw (CD). The characterization of diabetic patients and glycemic control were analyzed and compared among groups. To determine the relationship between diabetes and the use of dental prostheses, multivariable logistic regression analysis was performed (P < 0.05). RESULTS The adjusted odds ratios and 95% confidence intervals for diabetes in men participants in groups NF, RPD, and CD were 1 (reference), 1.165 (0.878-1.544), and 1.491 (1.034-2.151), respectively, after adjusting for confounding factors. Diabetes and glycemic control were significantly associated with the use of removable dental prostheses among men. CONCLUSION The use of removable dental prostheses is a potential risk indicator for uncontrolled diabetes in Korean men adults, suggesting the need for a comprehensive approach to minimize the complications of diabetes mellitus.
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Affiliation(s)
- Jae Hyun Lee
- Department of Prosthodontics, One-Stop Specialty Center, Seoul National University Dental Hospital, Seoul, Korea
| | - Jung Suk Han
- Department of Prosthodontics and Dental Research Institute, Seoul National University School of Dentistry, Seoul, Korea
| | - Kyungdo Han
- Department of Biostatistics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Su Young Lee
- Department of Prosthodontics, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
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Islas-Granillo H, Borges-Yañez SA, Navarrete-Hernández JDJ, Veras-Hernández MA, Casanova-Rosado JF, Minaya-Sánchez M, Casanova-Rosado AJ, Fernández-Barrera MÁ, Medina-Solís CE. Indicators of oral health in older adults with and without the presence of multimorbidity: a cross-sectional study. Clin Interv Aging 2019; 14:219-224. [PMID: 30787597 PMCID: PMC6363395 DOI: 10.2147/cia.s170470] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Purpose The aim of this study was to determine whether there are differences in the distribution of various indicators of oral health among elderly people with and without multimorbidity (ie, two or more chronic diseases). Subjects and methods A cross-sectional, comparative study was conducted using a sample of Mexican elderly individuals aged ≥60 years. The average age of the cohort was 79.06±9.78 years, and 69.1% were women. The variables indicating oral health were as follows: functional dentition, edentulism, hyposalivation, xerostomia, root caries and periodontitis. The multimorbidity variable was operationally categorized as follows: 0= subjects with no chronic disease or one chronic disease and 1= subjects with two or more chronic diseases. Questionnaires were used to collect information on various variables regarding general health. Likewise, the participants underwent a clinical oral examination. The analysis was performed using Stata 11.0. Results The overall prevalence of multimorbidity was 27.3%. The prevalences of various oral health indicators were as follows: without functional dentition 89.9%; hyposalivation 59.7%; edentulism 38.9% and self-reported xerostomia 25.2%. Dental caries were observed in 95.3% of the subjects, and the prevalence of severe periodontitis was 80%. We found a significant difference only in edentulism; its prevalence was higher among subjects with multimorbidity (55.3% vs 32.7%, P=0.015) than among those without multimorbidity. Conclusion The presence of edentulism in this sample of Mexican older adults was higher in subjects with multimorbidity. Multimorbidity and oral diseases constitute a true challenge in elderly people, because they affect quality of life and are associated with high health care costs.
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Affiliation(s)
- Horacio Islas-Granillo
- Academic Area of Dentistry, Health Sciences Institute, Autonomous University of Hidalgo State, Pachuca, Mexico,
| | | | | | | | | | | | | | | | - Carlo Eduardo Medina-Solís
- Academic Area of Dentistry, Health Sciences Institute, Autonomous University of Hidalgo State, Pachuca, Mexico, .,Advanced Studies and Research Center in Dentistry "Dr Keisaburo Miyata", Faculty of Dentistry, Autonomous University State of Mexico, Toluca, Mexico
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The Association of Poor Oral Health Parameters with Malnutrition in Older Adults: A Review Considering the Potential Implications for Cognitive Impairment. Nutrients 2018; 10:nu10111709. [PMID: 30413041 PMCID: PMC6266396 DOI: 10.3390/nu10111709] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 10/30/2018] [Accepted: 11/06/2018] [Indexed: 12/20/2022] Open
Abstract
Poor dental status and chewing deficiencies have been associated with cognitive decline. Altered dietary habits and malnutrition have been suggested as linking mechanisms. The aim of the present review was thus to investigate if poor oral health, and in particular tooth loss and impaired masticatory function, may affect dietary selection and nutritional intake in older adults, and moreover, to assess if prosthodontic dental care may improve nutritional status. Extensive tooth loss may impair masticatory function. Several studies in older populations have shown that severe tooth loss and masticatory impairment are associated with limited consumption of various food types (especially fruits and vegetables), increased consumption of sugary and easy-to-chew foods, and lower dietary intake of fibre and vitamins. However, these findings are not consistently reported, due to methodological variation among studies, potential adverse causalities, and the multifactorial nature of food choices. On the other hand, a few interventional studies revealed that prosthetic rehabilitation of missing teeth, when accompanied by dietary counselling, may improve dietary habits and nutritional intake. Further research is required to improve current knowledge of these associations. Under the limitations of the current study, a functional dental arch of natural or artificial teeth is important for maintaining adequate chewing efficiency and ability, but this only partly contributes to food choices and nutritional status. The multifactorial nature of food choices necessitates the interprofessional collaboration of dental professionals, dietetics practitioners, and primary care providers to improve dietary habits and nutritional intake.
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Is Accessibility to Dental Care Facilities in Rural Areas Associated with Number of Teeth in Elderly Residents? INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2017; 14:ijerph14030327. [PMID: 28335583 PMCID: PMC5369162 DOI: 10.3390/ijerph14030327] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 03/10/2017] [Accepted: 03/16/2017] [Indexed: 11/25/2022]
Abstract
Given that public transportation networks are less developed in rural than in urban areas, a lack of accessibility to dental care facilities could be a barrier to routine dental checkups. Thus, we hypothesized that the distance to the dental care facilities is a risk factor for tooth loss. The aim of this study was to test whether there is an association between the distance to dental care facilities, estimated by geographic information systems, and number of teeth, assessed by an oral examination, among elderly residents of a rural area in Japan. Data were collected in 2016 from a cross-sectional study conducted in Shimane prefecture, Japan. After excluding participants with missing data (n = 21), we analyzed data from 710 participants. Of them, 40.6% were male and the mean (standard deviation) age was 67.4 (7.4) years. Further, 68.0% (n = 483) had at least 20 teeth. We found that the distance to dental care facilities was significantly associated with the number of teeth (less than 20) (odds ratio = 1.07, 95% confidence interval = 1.01–1.12) after adjustment for potential confounders. This result suggested that individuals without easy access to dental care facilities may be important targets for dental care.
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Zhu Y, Hollis JH. Associations between the number of natural teeth and metabolic syndrome in adults. J Clin Periodontol 2015; 42:113-20. [PMID: 25581485 DOI: 10.1111/jcpe.12361] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/02/2015] [Indexed: 12/14/2022]
Abstract
AIM To explore associations between the number of natural teeth and metabolic syndrome in adults. MATERIAL AND METHODS Cross-sectional data from the National Health and Nutrition Examination Survey 2005-2008 were used. Eligible adults (n = 5511) were classified into four groups by their number of natural teeth (excluding third molars): full dentition, 21-27 teeth, 1-20 teeth, or edentulous. Metabolic syndrome was defined by diagnostic guidelines from the American Heart Association and National Heart, Lung, and Blood Institute. Associations were analysed by survey logistic regression. Biometric and metabolic parameters in different dentition groups were compared. RESULTS Adjusting for age, gender, race/ethnicity, ratio of family income to poverty, physical activity, smoking, and energy intake, tooth loss was significantly associated with metabolic syndrome (p = 0.002). Compared to participants with full dentition, the odds were 32% higher in those with 21-27 teeth, 55% higher in those with 1-20 teeth and 79% higher in edentulous participants. The number of natural teeth was inversely associated with body mass index, waist circumference, blood pressure, fasting plasma glucose and insulin concentrations (p < 0.01 for all); it was positively associated with serum HDL cholesterol concentration (p = 0.003). CONCLUSIONS The number of natural teeth is inversely associated with the presence of metabolic syndrome in adults.
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Affiliation(s)
- Yong Zhu
- Department of Epidemiology, The University of Iowa, Iowa City, IA, USA
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The relationship between metabolic conditions and prevalence of periodontal disease in rural Korean elderly. Arch Gerontol Geriatr 2014; 58:125-9. [DOI: 10.1016/j.archger.2013.08.011] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2013] [Revised: 07/17/2013] [Accepted: 08/31/2013] [Indexed: 11/22/2022]
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Kim DW, Park JC, Rim TT, Jung UW, Kim CS, Donos N, Cha IH, Choi SH. Socioeconomic disparities of periodontitis in Koreans based on the KNHANES IV. Oral Dis 2013; 20:551-9. [PMID: 24033864 DOI: 10.1111/odi.12168] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2012] [Revised: 06/26/2013] [Accepted: 07/12/2013] [Indexed: 12/16/2022]
Abstract
OBJECTIVES The aim of this study was to identify the socioeconomic factors associated with the prevalence of periodontitis in Koreans. METHODS Cross-sectional data from 12 763 subjects, 15 years old and above, who underwent periodontal examinations were obtained from the Korean National Health and Nutrition Examination Survey IV (2007-209). Multivariate linear and logistic regression analyses were applied to estimate the association between socioeconomic indicators and prevalence of periodontitis. RESULTS A significant association was found between increasing age and periodontitis. Participants with higher income were less likely to have periodontitis (aOR = 0.9 and 95% CI = 0.78-0.98, and aOR = 0.7 and 95% CI = 0.60-0.80 in the middle and highest quintiles of monthly household income, respectively). In addition, participants living in rural areas were less likely to have periodontitis (aOR = 0.9 and 95% CI = 0.81-0.99), and current smokers were more likely to have periodontitis (aOR = 1.7 and 95% CI = 1.49-1.89). The analysis of comorbidities revealed that individuals with diabetes mellitus (DM) were significantly more likely to have periodontitis (aOR = 1.4 and 95% CI = 1.18-1.68). CONCLUSIONS In a rapidly increasing Korean population, the lower socioeconomic groups as well as individuals with DM were significantly more likely to present with periodontitis.
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Affiliation(s)
- D W Kim
- Department of Oral and Maxillofacial Surgery, College of Dentistry, Yonsei University, Seoul, Korea
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Hendrie CA, Brewer G. Evidence to suggest that teeth act as human ornament displays signalling mate quality. PLoS One 2012; 7:e42178. [PMID: 22860076 PMCID: PMC3409146 DOI: 10.1371/journal.pone.0042178] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2012] [Accepted: 07/03/2012] [Indexed: 12/13/2022] Open
Abstract
Ornament displays seen in animals convey information about genetic quality, developmental history and current disease state to both prospective sexual partners and potential rivals. In this context, showing of teeth through smiles etc is a characteristic feature of human social interaction. Tooth development is influenced by genetic and environmental factors. Adult teeth record environmental and traumatic events, as well as the effects of disease and ageing. Teeth are therefore a rich source of information about individuals and their histories. This study examined the effects of digital manipulations of tooth colour and spacing. Results showed that deviation away from normal spacing and/or the presence of yellowed colouration had negative effects on ratings of attractiveness and that these effects were markedly stronger in female models. Whitening had no effect beyond that produced by natural colouration. This indicates that these colour induced alterations in ratings of attractiveness are mediated by increased/decreased yellowing rather than whitening per se. Teeth become yellower and darker with age. Therefore it is suggested that whilst the teeth of both sexes act as human ornament displays, the female display is more complex because it additionally signals residual reproductive value.
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Affiliation(s)
- Colin A Hendrie
- The University of Leeds Institute of Psychological Sciences, Leeds, United Kingdom.
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Piuvezam G, de Lima KC. Factors associated with missing teeth in the Brazilian elderly institutionalised population. Gerodontology 2012; 30:141-9. [PMID: 22607365 DOI: 10.1111/j.1741-2358.2012.00655.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Identify factors associated with missing teeth in the elderly institutionalised population in Brazil. METHODOLOGY Cross-sectional study of elderly institutionalised Brazilians with 1192 subjects. A questionnaire was applied as well as an epidemiological survey of oral health conditions in accordance with WHO. Factorial analysis was carried out with variables related to missing teeth, as well as the Fisher's exact test, chi-squared test and multiple logistic regression. RESULTS Mean age was 76.3 (± 9.8), 53.5% (638) of subjects were women and 717 (60.2) were dependent. Mean of Decayed Missing and Filled Teeth Index (DMFT index) was 29.4 (± 4.9). The subjects that did not use upper and lower dentures were 61.5% (732) and 79.2% (944), respectively. Median number of missing teeth per person was 27.88 (± 6.8) with a mean of 4 (± 6.6) teeth present and 2.4 (± 4.5) caries-free teeth. Factors associated with missing teeth following multivariate analysis were: age, sex, self-assessment of oral health, access to health services, type of institution and area of the country. CONCLUSIONS High level of tooth loss and low level of rehabilitation demonstrate precarious oral health. It is therefore necessary to improve institutional access mechanisms to public health facilities for the institutionalised elderly.
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Affiliation(s)
- Grasiela Piuvezam
- Postgraduate Health Sciences Program, Department of Collective Health, Federal University of Rio Grande do Norte UFRN, Parnamirim, RN 59151-600, Brazil.
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Chung SY, Song KB, Lee SG, Choi YH. The strength of age effect on tooth loss and periodontal condition in Korean elderly. Arch Gerontol Geriatr 2011; 53:e243-8. [DOI: 10.1016/j.archger.2011.04.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2011] [Revised: 04/19/2011] [Accepted: 04/20/2011] [Indexed: 11/29/2022]
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Jung SH, Ryu JI, Jung DB. Association of total tooth loss with socio-behavioural health indicators in Korean elderly. J Oral Rehabil 2010; 38:517-24. [PMID: 21118289 DOI: 10.1111/j.1365-2842.2010.02178.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This study examined the association between total tooth loss, and socio-behavioural factors and general health indicators in elderly Koreans using national databases. Cross-sectional data for this study were from the third Korean National Health and Nutrition Examination Survey (KNHANES III), which was conducted among non-institutionalised civilians by the Korean Ministry of Health and Welfare in 2005. KNHANES III used a stratified, multistage probability sampling design on a representative of total South Korean population, according to geographical areas, age and sex groups. Among them, 1091 subjects aged 65 years and above were identified as potential participants in this study. The dependent variable in this study was the self-reported total tooth loss. The independent variables consisted of the following four categories: demographic information, socio-behavioural factors, psychological factors and general health indicators. The data were weighted to adjust for the sampling complexity, and SPSS version 14 for Windows software was used for data analysis. There were significant differences in total tooth loss odds according to the socio-behavioural backgrounds (education and smoking), psychological conditions (perceived oral health) and general health status (diabetes and body mass index as underweight). This suggests that the total tooth loss is associated with the socio-economic status, health-related behaviour and general health. However, more extensive longitudinal data and research will be needed to better explain the relationship between the total tooth loss and these variables.
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Affiliation(s)
- S H Jung
- Department of Preventive and Public Health Dentistry, Gangneung-Wonju National University, Gangneung, Korea
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