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PubMed2002

Predicting tooth loss during a population-based study: role of attachment level in the presence of other dental conditions.

BACKGROUND: Our objectives were to quantify: 1) the association between incident tooth loss and prior periodontal attachment level; and 2) the contribution to tooth loss made by non-periodontal conditions in increasingly periodontally involved teeth. METHODS: The Florida Dental Care Study was a prospective cohort study of persons who at baseline had at least 1 tooth and were 45 years or older. In-person interviews and clinical examinations were conducted at baseline, and at 24 and 48 months, with telephone interviews at 6-month intervals in between. A regression model was used to simultaneously quantify tooth-specific predictors of tooth loss, with person-level factors taken into account. RESULTS: Of the 687 persons who participated for a 48-month clinical examination, 36% lost 1 or more teeth during follow-up, and 5.0% of all teeth were lost. Attachment level up to 2 years before tooth loss was strongly predictive of incident tooth loss, with increases in risk for each millimeter in attachment loss. Certain other tooth-specific conditions (tooth mobility, bulk restoration fracture, decayed surfaces, filled surfaces, tooth type and arch location, root fragment) were strongly and independently associated with increased risk for tooth loss, while others were not (prosthetic crown coverage, cusp fracture, root surface defect). Propensity to choose extraction over other treatment alternatives, as reported by participants at baseline, was also strongly predictive of tooth loss. CONCLUSIONS: Increasingly severe attachment level was consistently associated with an increased risk for tooth loss in this sociodemographically diverse sample, with or without other tooth-specific conditions taken into account.

Aged↗
PubMed2006

Gender differences in tooth loss among Chilean adolescents: socio-economic and behavioral correlates.

OBJECTIVE: To investigate gender differences in tooth loss among Chilean adolescents and its association with selected socio-economic indicators and oral-health-related behaviors. MATERIAL AND METHODS: Data on 9,163 Chilean adolescents obtained using multistage random cluster procedures. Clinical recordings included information on missing teeth and the participants provided information on socio-demographic factors and oral-related behaviors. Two eruption-time-adjusted logistic regression analyses were used to investigate the associations between gender, tooth loss and socio-economic position/oral-health-related behaviors. RESULTS: The association between gender and tooth loss remained after adjusting for age, eruption times in both the socio-economic position regression model and the oral-health-related behaviors model. Tooth loss followed social gradients for the variables paternal income and achieved parental education, with students reporting a paternal income < 100,000 US dollars (OR = 2.0), and having a father (OR = 1.8) and a mother (OR = 2.0) who achieved only primary school education being more likely to experience tooth loss. The adjusted regression model for behavioral indicators revealed that students who reported brushing their teeth once a day (OR = 1.6) were more likely to have experienced tooth loss than those who reported more frequent toothbrushing. Students who visited a dentist rarely (OR = 0.8) or never (OR = 0.5) were less likely to have lost first molars and/or incisors. CONCLUSIONS: The results demonstrate that gender differences in tooth loss among young Chileans are related to socio-economic position; and selected oral-health-related behaviors after adjusting for eruption time variation.

Adolescent↗
PubMed2006

Effect of dental practice characteristics on racial disparities in patient-specific tooth loss.

OBJECTIVE: The objective of this study was to test the hypothesis that dental practice characteristics are associated with tooth loss incidence with both tooth-specific and patient-specific characteristics already taken into account. RESEARCH DESIGN: A population-based prospective cohort study was conducted. In-person interviews and clinical examinations were done at baseline, 24, and 48 months, with telephone interviews every 6 months. Practices that coincidentally served participants in the study completed practice characteristics questionnaires. To increase inferential power when testing practice-level effects, detailed tooth-specific and patient-specific data were simultaneously taken into account in tests for association between practice-level effects and tooth loss. SETTING: Data were from the Florida Dental Care Study. The key health outcome was tooth loss, a leading measure of a population's oral health. PARTICIPANTS: Eight hundred seventy-three African-Americans and non-Hispanic whites who had at least 1 tooth. RESULTS: Certain practice characteristics were associated with tooth loss, including the racial mix of the practice's patient population; persons who attended practices with higher percentages of African-Americans were more likely to receive a dental extraction regardless of the individual patient's race. CONCLUSIONS: This is the first longitudinal report of increased risk for tooth loss resulting from practice-level effects. Although a patient-level racial disparity remained evident, and even with detailed tooth-specific and patient-level characteristics taken into account, racial differences in characteristics of practices attended independently contributed to the patient-level racial disparity in health.

Black or African American↗
PubMed2006

Tooth loss in a young population from south Brazil.

OBJECTIVES: To assess the prevalence, extent, and risk indicators of tooth loss in a representative young urban population from south Brazil. METHODS: A representative sample was drawn using a multi-stage probability cluster sampling strategy, and consisted of 612 subjects 14-29 years of age in the metropolitan area of Porto Alegre, Brazil. A clinical examination was carried out by 4 calibrated examiners in a mobile examination center. RESULTS: The prevalence of tooth loss was 44.8%, 26%, and 60%, and the mean tooth loss was 1.4, 0.6, and 2.4 teeth in the age groups 14-29, 14-19 and 25-29 years, respectively. First molars were the most frequently missing teeth, and the mandibular incisors and canines were the least missing teeth. Tooth loss increased sharply with age, and was similar in males and females. Having > or =4 missing teeth was significantly associated with low socioeconomic status and heavy smoking, and was significantly more likely in persons who had > or =2 teeth with caries/fillings and/or > or =5 mm attachment loss. CONCLUSION: Tooth loss is a dental health concern in this young Brazilian population. Community-based oral diseases prevention programs targeting groups having these risk factors should be implemented to reduce tooth loss.

Adolescent↗
PubMed2001

Calcium and vitamin D supplements reduce tooth loss in the elderly.

PURPOSE: Oral bone and tooth loss are correlated with bone loss at nonoral sites. Calcium and vitamin D supplementation slow the rate of bone loss from various skeletal sites, but it is not known if intake of these nutrients affects oral bone and, in turn, tooth retention. SUBJECTS AND METHODS: Tooth loss was examined in 145 healthy subjects aged 65 years and older who completed a 3-year, randomized, placebo-controlled trial of the effect of calcium and vitamin D supplementation on bone loss from the hip, as well as a 2-year follow-up study after discontinuation of study supplements. Teeth were counted at 18 months and 5 years. A comprehensive oral examination at 5 years included assessment of caries, oral hygiene, and periodontal disease. The odds ratio (OR) and 95% confidence interval (CI) of tooth loss were estimated by stepwise multivariate logistic regression. Initial age (mean +/- SD) of subjects was 71 +/- 5 years, and the number of teeth remaining was 22 +/- 7. RESULTS: During the randomized trial, 11 of the 82 subjects (13%) taking supplements and 17 of the 63 subjects (27%) taking placebo lost one or more teeth (OR = 0.4; 95% CI: 0.2 to 0.9). During the 2-year follow-up period, 31 of the 77 subjects (40%) with total calcium intake of at least 1000 mg per day lost one or more teeth compared with 40 of the 68 subjects (59%) who consumed less (OR = 0.5; 95% CI: 0.2 to 0.9). CONCLUSION: These findings suggest that intake levels of calcium and vitamin D aimed at preventing osteoporosis have a beneficial effect on tooth retention.

Aged↗
PubMed1998

The emotional effects of tooth loss in edentulous people.

AIM: To explore the range of reactions to, and feelings about, tooth loss. METHOD: In this qualitative study, 50 edentulous people undergoing routine prosthetic dental care were interviewed privately using a reflexive, in-depth technique. All the interviews were tape-recorded and transcribed. The transcripts were scrutinised to identify the common themes related to tooth loss. Interpreter bias was minimised by two researchers scrutinising the transcripts independently. RESULTS: The participants had a mean age of 69.9 years (range 51 to 86) and had been edentulous for a mean of 18.4 years (range 0.25 to 57 years). The main themes identified in reaction to tooth loss were: bereavement, lowered self-confidence, altered self-image, dislike of appearance, an inability to discuss this taboo subject, a concern about prosthodontic privacy, behaving in a way that keeps the tooth loss secret, altered behaviour in socialising and forming close relationships, premature ageing, and lack of preparation. CONCLUSION: Tooth loss can be disabling and handicapping. It has a profound impact on the lives of some people, even those who are apparently coping well with dentures. The profession needs to consider how it can prepare people for the effects of tooth loss.

Adaptation, Psychological↗
PubMed2006

Effects of smoking and drinking habits on the incidence of periodontal disease and tooth loss among Japanese males: a 4-yr longitudinal study.

OBJECTIVE: We investigated the risk of periodontal disease and tooth loss, associated with habits of smoking and alcohol consumption, in a longitudinal study. SUBJECTS AND METHODS: The subjects were 1332 Japanese males, 30-59 yr of age, who were free from periodontal disease at the baseline check-up, and who underwent a second check-up 4 yr later. Periodontal disease was diagnosed using the community periodontal index score, based on the clinical probing of pocket depth (> or = 4 mm). Smoking and alcohol consumption patterns were evaluated using a self-administered questionnaire. RESULTS: A dose-response relationship was observed between the amount of smoking and the incidence of periodontal disease in each age group. The overall odds ratios (95% confidence intervals), adjusted for age and alcohol, were 1.51 (0.95-2.22), 1.58 (1.13-2.22) and 2.81 (1.96-4.03), among smokers consuming 1-19, 20 or 21 or more cigarettes per day, respectively, with a significant linear trend (p < 0.0001). A similar association was found between smoking and tooth loss, except for the 50-59-yr-old age group. The adjusted odds ratios were 1.26 (0.60-2.64), 2.01 (1.21-2.32) and 2.06 (1.23-3.48), respectively. A significant linear trend between smoking and tooth loss was also observed (p = 0.01). Ex-smokers showed no significant difference compared with nonsmokers. We also found a significant linear trend between alcohol consumption and tooth loss among 30-39-yr-old subjects, while no relationship was observed between alcohol consumption and periodontal disease. CONCLUSION: Cigarette smoking was found to be an independent risk factor for periodontal disease and tooth loss. Alcohol consumption was a limited risk factor for tooth loss in the younger age group, but was unrelated to periodontal disease. To prevent periodontal disease and tooth loss, health practitioners need to encourage people to stop smoking or not to start.

Adult↗
PubMed2006

Risk of tooth loss after cigarette smoking cessation.

INTRODUCTION: Little is known about the effect of cigarette smoking cessation on risk of tooth loss. We examined how risk of tooth loss changed with longer periods of smoking abstinence in a prospective study of oral health in men. METHODS: Research subjects were 789 men who participated in the Veterans Administration Dental Longitudinal Study from 1968 to 2004. Tooth status and smoking status were determined at examinations performed every 3 years, for a maximum follow-up time of 35 years. Risk of tooth loss subsequent to smoking cessation was assessed sequentially at 1-year intervals with multivariate proportional hazards regression models. Men who never smoked cigarettes, cigars, or pipes formed the reference group. Hazard ratios were adjusted for age, education, total pack-years of cigarette exposure, frequency of brushing, and use of floss. RESULTS: The hazard ratio for tooth loss was 2.1 (95% confidence interval [CI], 1.5-3.1) among men who smoked cigarettes during all or part of follow-up. Risk of tooth loss among men who quit smoking declined as time after smoking cessation increased, from 2.0 (95% CI, 1.4-2.9) after 1 year of abstinence to 1.0 (95% CI, 0.5-2.2) after 15 years of abstinence. The risk remained significantly elevated for the first 9 years of abstinence but eventually dropped to the level of men who never smoked after 13 or more years. CONCLUSION: These results indicate that smoking cessation is beneficial for tooth retention, but long-term abstinence is required to reduce the risk to the level of people who have never smoked.

Adult↗
PubMed1996

Tooth retention and tooth loss in the permanent dentition of adults: United States, 1988-1991.

While the overall prevalence of tooth loss and edentulism has been declining in the United States over the past several decades, important variations remain among subgroups of the population. Data from Phase 1 of the Third National Health and Nutrition Examination Survey (NHANES III) provide the most current estimates of the prevalence and distribution of tooth retention and tooth loss in the United States. Weighted analyses were conducted for all adults 18+ years of age (n=8,366) and for selected age, gender, and race-ethnicity groups. In 1988-91, 89.5% of the population was dentate, and 30.5% had retained all 28 teeth. The mean number of teeth retained was 21.1 for all adults and 23.5 for dentate persons. The most commonly retained teeth in the mouth were the six anterior teeth in the lower arch. Conversely, 10.5% of the population was edentulous. Partial edentulism was much more common in the upper arch than in the lower arch. The most commonly missing teeth were the first and second molars. Age was strongly related to every measure of tooth retention and tooth loss. Gender was not related to any of these measures, after adjustment for age. Race-ethnicity was consistently related to these measures, after adjustment for age and gender. In general, Mexican-Americans had the lowest and black non-Hispanics the highest rates of tooth loss. Future research needs to examine a wide range of potential correlates of tooth retention and tooth loss before we can understand the complex interplay among the personal, dental, and environmental factors influencing tooth retention and tooth loss in the United States.

Adolescent↗
PubMed2003

Social determinants of tooth loss.

OBJECTIVES: To quantify racial and socioeconomic status (SES) disparities in oral health, as measured by tooth loss, and to determine the role of dental care use and other factors in explaining disparities. DATA SOURCES/STUDY SETTING: The Florida Dental Care Study, comprising African Americans (AAs) and non-Hispanic whites 45 years old or older who had at least one tooth. STUDY DESIGN: We used a prospective cohort design. Relevant population characteristics were grouped by predisposing, enabling, and need variables. The key outcome was tooth loss, a leading measure of a population's oral health, looked at before and after entering the dental care system. Tooth-specific data were used to increase inferential power by relating the loss of individual teeth to the disease level on those teeth. DATA COLLECTION METHODS: In-person interviews and clinical examinations were done at baseline, 24, and 48 months, with telephone interviews every 6 months. PRINCIPAL FINDINGS: African Americans and persons of lower SES reported more new dental symptoms, but were less likely to obtain dental care. When they did receive care, they were more likely to experience tooth loss and less likely to report that dentists had discussed alternative treatments with them. At the first stage of analysis, differences in disease severity and new symptoms explained tooth loss disparities. Racial and SES differences in attitudes toward tooth loss and dental care were not contributory. Because almost all tooth loss occurs by means of dental extraction, the total effects of race and SES on tooth loss were artificially minimized unless disparities in dental care use were taken into account. CONCLUSIONS: Race and SES are strong determinants of tooth loss. African Americans and lower SES persons had fewer teeth at baseline and still lost more teeth after baseline. Tooth-specific case-mix adjustment appears, statistically, to explain social disparity variation in tooth loss. However, when social disparities in dental care use are taken into account, social disparities in tooth loss that are not directly due to clinical circumstance become evident. This is because AAs and lower SES persons are more likely to receive a dental extraction once they enter the dental care system, given the same disease extent and severity. This phenomenon underscores the importance of understanding how disparities in health care use, dental insurance coverage, and service receipt contribute to disparities in health. Absent such understanding, the total effects of race and SES on health can be underestimated.

Black or African American↗
PubMed2004

Incidence of tooth loss and prosthodontic dental care: effect on chewing difficulty onset, a component of oral health-related quality of life.

OBJECTIVES: To quantify incidence of tooth loss, prosthodontic dental restoration, and chewing difficulty onset and the effect of tooth loss and prosthodontic restoration on chewing difficulty onset. DESIGN: A prospective cohort study of oral health and related behaviors with in-person interviews and clinical examinations conducted at baseline and 24 months. Telephone interviews were conducted every 6 months between these sessions. SETTING: A community-based sample of four counties in north Florida. PARTICIPANTS: Eight hundred seventy-three persons who had at least one tooth and were aged 45 and older at baseline. MEASUREMENTS: Persons were queried regarding onset of chewing difficulty, an important component of oral health-related quality of life (OHRQoL). The chewing index of Leake, with minor revision, was the primary outcome of interest. Tooth loss was measured using direct clinical examination. Dental care use was reported during each interview. RESULTS: Approximately 22% of participants reported tooth loss during follow-up. Fixed prosthodontics (crowns and bridges) was the most common form of new prosthodontic treatment. People who reported tooth loss were 2.7 times more likely to report chewing difficulty onset than people without tooth loss (P<.001). Having fewer occluding pairs of teeth at baseline was significantly associated with an increased probability of chewing difficulty onset. People who received removable prosthodontic treatment were much less likely to report chewing difficulty onset than people who did not (P<.01). CONCLUSION: Incident tooth loss and removable prosthodontic restoration strongly predicted chewing difficulty, an important component of OHRQoL.

Aged↗
PubMed1997

Predictors of tooth loss over 10 years in adult and elderly Chinese.

This study describes the incidence of tooth loss over a 10-year period in a population of rural Chinese, initially aged between 20 and 80 years. Among the 587 persons who participated in a baseline examination in 1984, 440 persons were available for a follow-up study in 1994. A total of 31 persons, mainly aged 50+ years at baseline, had become completely edentulous. Between 45% and 96% of the persons lost at least one tooth, and the average number of teeth lost ranged between 1.0 and 7.2. The distribution of the number of teeth lost was skew, indicating that a minor group of subjects had a substantially higher risk of tooth loss than the majority. Logistic regression analysis identified six significant predictors of tooth loss among those who remained dentate: age, a high number of teeth with dentinal caries lesions, a high number of teeth with caries lesions of any type, presence of teeth with attachment loss > or = 7 mm, presence of mobile teeth, and a low percentage of sites with subgingival calculus deposits. At the subject level, caries variables and periodontal disease variables seemed equally important predictors of the incidence of tooth loss over 10 years, but at the tooth level caries was a predominant cause of tooth loss in all age groups.

Adult↗
PubMed2005

Tooth loss is associated with increased risk of gastric non-cardia adenocarcinoma in a cohort of Finnish smokers.

OBJECTIVE: Tooth loss has been associated with upper gastrointestinal cancer in several studies, but only one previous study used prospectively collected data. The importance of confounding by Helicobacter pylori has not previously been addressed. The objective was to determine the association between tooth loss and upper gastrointestinal cancer in the Alpha-Tocopherol, Beta-Carotene Cancer Prevention Study cohort and to determine the importance of potentially confounding dietary factors or H. pylori seropositivity. MATERIAL AND METHODS: A prospective cohort study with 29,124 subjects included 49 esophageal squamous cell carcinomas, 66 esophageal/gastric cardia adenocarcinomas, and 179 gastric non-cardia adenocarcinomas occurring between 1985 and 1999. Cox proportional hazards models adjusted for age and education were used to estimate hazard ratios (HRs) and 95% CIs. Odds ratios and 95% CIs were calculated with and without adjustment for H. pylori seropositivity in a nested case-control group to determine whether H. pylori confounded the association between tooth loss and gastric cancer. RESULTS: Tooth loss significantly increased the hazard ratio for gastric non-cardia cancer, the HR (95% CI) for edentulous subjects versus those with < 10 teeth lost was 1.65 (1.09, 2.49, respectively). No statistically significant associations were found between tooth loss and esophageal squamous cell carcinoma or esophageal/gastric cardia adenocarcinoma. Confounding by dietary factors, tobacco smoking, or H. pylori did not explain these results. CONCLUSIONS: Tooth loss was associated with increased risk of gastric non-cardia cancer, but not esophageal squamous cell carcinoma or esophageal/gastric cardia adenocarcinoma in this Finnish cohort.

Adenocarcinoma↗
PubMed2001

The emotional effects of tooth loss in partially dentate people attending prosthodontic clinics in dental schools in England, Scotland and Hong Kong: a preliminary investigation.

AIM: To compare the emotional effects of tooth loss in three partially dentate populations. DESIGN: A questionnaire survey. MATERIALS AND METHODS: A questionnaire was completed by 150 partially dentate subjects undergoing routine prosthodontic care at Guy's, King's and St Thomas's Dental Institute, London; the Dental School, Dundee, Scotland; and the Faculty of Dentistry, University of Hong Kong. Data were analysed using the Chi-square test. RESULTS: Forty nine per cent of all participants reported difficulties in accepting the loss of some of their teeth. People from Dundee were less likely to have difficulties accepting tooth loss (P = 0.001). People from London took longer to come to terms with their tooth loss and were more likely to feel less confident (P < 0.001). Fifty five per cent of all participants restricted their choice of foods and 54 per cent had not enjoyed their food as much as before. Fewer people in Dundee restricted their choice of food (P < 0.001) and were more likely to enjoy their food (P = 0.009). People in Hong Kong were most likely to restrict their choice of food (P = 0.006). Thirty five percent of all subjects felt unprepared for the effects that tooth loss had upon them. People in Hong Kong were more prepared for tooth loss than those in Dundee and London (P = 0.003). In addition, they were less concerned about leaving their dentures out overnight (P = 0.024). CONCLUSIONS: The emotional effects of tooth loss were significant in all groups. People from London took longer to come to terms with their tooth loss.

Attitude to Health↗
PubMedDate not supplied

Prevalence and demographic correlates of tooth loss among the elderly in the United States.

The aging of the United States population and the contribution of tooth loss to oral health make it important to describe tooth loss among the elderly in this country. Data from the National Survey of Oral Health in US Employed Adults and Seniors: 1985-1986, conducted by the National Institute of Dental Research, were analyzed to examine the prevalence and demographic correlates of tooth loss among the elderly. Results show that there were important differences in tooth loss among subgroups of the elderly sample (overall n = 5,649 persons aged 65+ years attending senior centers). The oldest seniors and those with the least education or income were the most likely to be edentulous. The oldest dentulous seniors, blacks, those with the least education or income, and those who lived in New England or the Northeast had the fewest number of teeth present. These findings suggest that efforts to reduce tooth loss among the elderly should target those with the least education and income.

Age Distribution↗
PubMed1996

Incidence of and risk factors for tooth loss in a population of older Canadians.

Data on the incidence of tooth loss in community-dwelling older Canadians have not previously been reported. Since recent US studies of older adults were conducted in predominantly rural communities, their results may not be generalizable to Canada, where the majority of older adults live in major metropolitan or urban settings. This paper describes a study designed to estimate the incidence of tooth loss in older Canadians and to identify factors predictive of that loss. Using personal interviews and clinical examinations, we obtained baseline and three-year follow-up data from 491 dentate subjects. Overall, 23.2% lost one or more teeth between baseline and follow-up. Only six, or 1.2%, became edentulous. Twelve baseline factors were significantly associated with the probability of loss. However, in a logistic regression analysis, only five had significant independent effects. These were gender, marital status, self-rating of oral health status, the number of decayed root surfaces, and a mean periodontal attachment loss of 4 mm or more. The predictive ability of the model was poor, largely because tooth loss is a complex outcome which depends on decisions taken by dentists and patients. Since this decision-making process cannot be captured in epidemiological studies, observational studies are needed to cast further light on tooth loss in this population.

Aged↗
PubMed2001

Prospective study of tooth loss and incident esophageal and gastric cancers in China.

OBJECTIVE: To determine the association between tooth loss and the risk of developing esophageal squamous cell carcinoma, gastric cardia adenocarcinoma, or gastric non-cardia adenocarcinoma in a prospective study. METHODS: Cox proportional hazards regression was used to examine these associations in a 28,868-person cohort followed prospectively for 5.25 years. The baseline questionnaire included questions regarding tooth loss, and individuals reporting lost teeth had their teeth counted by study personnel. The analytic cohort included 620 esophagus, 431 gastric cardia, and 102 gastric non-cardia cancer cases. RESULTS: Tooth loss was associated with a significantly elevated risk of developing all three cancers. When examined as median splits, tooth loss was associated with a relative risk (RR) (95% confidence interval, CI) of 1.3 (1.1-1.6) in the esophagus, 1.3 (1.0-1.6) in the gastric cardia, and 1.8 (1.1-3.0) in the gastric non-cardia. Further analysis demonstrated that this increased risk was most strongly associated with the loss of the first few teeth and was primarily confined to the younger members of our cohort. CONCLUSIONS: In this cohort tooth loss increased the risk of developing upper gastrointestinal cancer. We hypothesize that this may be related to alterations in oral bacterial flora and subsequent increases in the in-vivo production of carcinogens such as nitrosamines.

Adenocarcinoma↗