The paradox of dental need in a population-based study of dentate adults

Prevalence and socioeconomic factors associated with non-utilization of dental care in Lebanon: A nationwide cross-sectional survey

OBJECTIVES

To assess the prevalence of non-utilization of dental care in Lebanon and associated socioeconomic factors and self-care behaviours.

METHODS

A nationwide, quantitative, survey-based study was conducted by trained interviewers with Lebanese residents aged ≥18 years between July and September 2019. Univariate analyses were performed using Pearson Chi Square test or the Fisher's exact test followed by a binary logistic regression using the SPSS Version 25.

RESULTS

Of the 1070 participants, 247 (23.1%) did not utilise any type of healthcare and 144/247 (58.3%) did not utilise dental care. The prevalence of non-utilization of dental care was estimated at 13.5%. Only 4.7% of the respondents consulted their dentist in the past year, among which 53% cited pain/emergencies as the reason for their consultation. Socioeconomic factors associated with the non-utilization of dental care were lack of social medical insurance (OR, 0.49 [95% CI, 0.31 to 0.79]) and long waiting time/patient time restriction (OR, 2.05 [95% CI, 1.26 to 3.35]). On the other hand, facilitators for utilization of dental care included ethical standards/personal qualities of the dentist (OR, 0.53 [95% CI, 0.32 to 0.88]) and convenient cost with respect to the individual's economic status (OR, 0.28 [95% CI, 0.18 to 0.43]).

CONCLUSION

This study suggests that dental care practices in Lebanon, including the non-utilization of dental care, are suboptimal. Measures such as reducing sugar and tobacco consumption, providing information on oral hygiene, and using fluoride products are inexpensive; however, implementing these measures may take substantial time and input by multiple stakeholders.

The role of dentist supply, need for care and long-term continuity in Health Resources and Services Administration-funded health centres in the United States

OBJECTIVES

Health Resources and Services Administration-funded health centres (HCs) are an important source of dental services for low-income and vulnerable patients in the United States. About 82% of HCs in 2018 had dental workforce, but it is unclear whether this workforce meets the oral health needs of HC patients. Thus, we first examined (a) whether dental workforce was associated with any dental visits vs none and (b) whether HC patients with any visits were more likely to have a visit at the HC vs elsewhere. We then examined (c) if need for oral health care and long-term continuity at the HC were associated with dental visits and visits at the HC.

METHODS

This study used the 2014 Health Center Patient Survey, a nationally representative study of US HC patients, and the 2013 Uniform Data System, an administrative dataset of HC characteristics. We also used the 2013 Area Health Resource File to measure the contribution of local supply of dentists. We included working-age adult patients (n = 5006) and used multilevel structural equation models with Poisson specification.

RESULTS

Larger dental workforce at the HC was significantly associated with 1% higher likelihood (relative risk [RR]: 1.01, 1.00-1.02) of any visits and 10% higher likelihood of a visit at the HC among those with a visit (RR: 1.10, 1.06-1.14). Patient self-reported oral health need was positively associated with 157% higher likelihood of dental visits (RR: 2.57, 2.29-2.88), and 42% higher likelihood of dental visit at the HC vs elsewhere (RR: 1.42, 1.19-1.69). Long-term continuity with the HC was not significantly associated with likelihood of dental visits, but was associated with 26% higher likelihood of visits at the HC among those who had any visits (RR: 1.26, 1.02-1.56).

DISCUSSION

The findings highlight the potential impact of increasing dental workforce at HCs to promote access; the high level of need for oral health care at HCs; and the increased effort required to promote access among newer patients who may be less familiar with the availability of oral health care at HCs. Together, these findings reinforce the importance of addressing barriers of use of oral health services among low-income and uninsured patients.

[Oral health inequalities: Determinants of access to prevention and care in France]

INTRODUCTION

Oral diseases are unequally distributed according to a social gradient, which now constitutes a major public health problem. Acting against oral health inequalities requires a better understanding of the underlying mechanisms in order to identify the appropriate solutions to improve access to oral health promotion and dental care for deprived populations.

METHODS

A patient-centered model of health care access, describing the ideal interactions between individuals and the health care system was applied to the field of oral health in the French context. This model defines access to health care as the result of interactions between individuals and the health care system, in which health needs are perceived, health care is sought, health care structures are accessed and effectively used. Analysis is based on quantitative and qualitative bibliographic data acquired through an explanatory sociological approach.

RESULTS

Socially deprived populations face many barriers preventing their access to dental care: the need for dental care is not necessarily perceived, and, when perceived, dental care is not immediately sought, accessibility to dental care structures is difficult and dental attendance is erratic.

CONCLUSION

This review provides information to decision-makers in order to support regional health policies and to help implement public health strategies according to the principle of proportionate universalism. Two axes for action were identified, namely to integrate oral health promotion interventions within health promotion programmes and to gradually reorganize the dental care system to make it more accessible to everyone.

Assessing the Oral Health Needs of African American Men in Low-Income, Urban Communities

Despite improvements in oral health status in the United States, pronounced racial/ethnic disparities exist. Black men are less likely to visit the dentist, are twice as likely to experience tooth decay, and have a significantly lower 5-year oral cancer survival rate when compared to White men. The Minority Men's Oral Health Dental Access Program employed a community-based participatory research approach to examine the oral health barriers and opportunities for intervention among Black men in a low-income, urban neighborhood. A cross-sectional study design was implemented through a self-administered survey completed among 154 Black males. The majority reported not having dental insurance (68.8%). Most frequently cited oral health care barriers were lack of dental insurance and not being able to afford dental care. Attitudes related to the significance of dental care centered on cancer prevention and feeling comfortable with one's smile. The impact of oral health on daily life centered on social interaction, with men citing insecurities associated with eating, talking, and smiling due to embarrassment with how their teeth/mouth looked to others. Multivariate logistic regression revealed that those who had difficulty finding dental care were 4.81 times (odds ratio = 4.65, 95% confidence interval [1.80, 12.85]) more likely to report no dental insurance, and 2.73 times (odds ratio = 3.72; 95% confidence interval [1.12, 6.70]) more likely to report poor oral health. Community-based participatory approaches include assessment of neighborhood residents affected by the health issue to frame interventions that resonate and are more effective. Social, physical, and infrastructural factors may emerge, requiring a multilevel approach.

Clinical factors and self-perceived oral health

Self-perceived oral health is affected not only by awareness of the clinical status but also by comparisons with people of a similar age. This study explored the relative contributions of clinical variables assessing caries, periodontal status, and prosthetic status to self-perceived oral health within two age groups. Data of 891 adults (35-44 yr of age) and 760 older people (65-74 yr of age) from the Fourth German Oral Health Study (DMS IV, 2005) were evaluated. Self-perceived oral health was obtained from questionnaires. Numbers of decayed, filled, and unreplaced teeth, mean attachment loss, bleeding on probing (BOP), the presence of a fixed denture, and the presence of a removable denture were assessed. Multinomial logistic regression models were developed for both age groups, separately, using stepwise methods. For adults, unreplaced teeth, filled teeth, decayed teeth, the presence of a removable denture, and mean attachment loss were added to the final model. For older people, the presence of a removable denture, unreplaced teeth, decayed teeth, mean attachment loss, filled teeth, and BOP were included in the final model. Awareness of the relative contributions of clinical variables to self-perceived oral health is important for obtaining a clearer understanding of patients' subjective and objective self-perceptions of oral health.

What are the key endodontic factors associated with oral health-related quality of life?

AIM

To determine the associations between endodontic factors and oral health-related quality of life (OHQoL), controlling for socio-demographics, pain and other oral health clinical factors.

METHODOLOGY

OHQoL assessments were conducted amongst a consecutive sample of 412 Chinese patients requiring endodontic treatment employing the short-form Oral Heath Impact Profile (OHIP-14). Information on (i) number of teeth requiring endodontic treatment, (ii) tooth type, (iii) retreatment requirements, (iv) periapical radiolucency assessment and (v) diagnostic classification was obtained. In addition, socio-demographic information (age, gender, educational attainment and family income), pain ratings on a visual analogue scale (VAS) and other clinical oral health status information were collected.

RESULTS

Bivariate analyses identified association between number of teeth requiring endodontic treatment and summary OHIP-14 score (P < 0.01) and four of its seven domain scores (P < 0.05). Need for endodontic retreatment was associated with summary OHIP-14 score (P < 0.05) and two of its seven domain scores (P < 0.05). In regression analyses having controlled for socio-demographics, other clinical factors and pain rating amongst 15 confounding variables, patients requiring endodontic treatment for multiple teeth were more than twice as likely to have poor OHQoL (upper quintile OHIP-14 scores) compared with those requiring endodontic treatment for a single tooth (OR = 2.16, 95% CI 1.17, 3.98, P < 0.05). Pain VAS rating and age also emerged as significant factors associated with poor OHQoL in the regression analysis.

CONCLUSION

OHQoL is compromised amongst patients requiring endodontic treatment. Number of teeth requiring endodontic treatment is associated with poor OHQoL, controlling for socio-demographic and other oral health clinical and pain factors.

Self-reported oral health and oral health behaviors in older adults in the last year of life

BACKGROUND

The complex physiological, psychological, and functional changes at the end of life may dramatically affect oral health. However, evidence regarding oral health changes at the end of life is scarce. This study's objective was to examine self-rated oral health and oral health behaviors among community-dwelling elders in the last year of life.

METHODS

This study was a retrospective longitudinal study including 810 dentate community-dwelling older adults aged 65 and older. Based on death certificate data, the participants were retrospectively classified into two groups: died within 1 year after the last interview (end-of-life group) and survived more than 1 year after the last interview (comparison group). Participants were interviewed at baseline, 18, 36, 60, and 84 months regarding their sociodemographics, self-reported oral health, oral conditions, use of oral health services, and preventive behaviors. Generalized estimating equations were used to compare self-reported oral health and oral health behaviors between two groups.

RESULTS

After adjusting for sociodemographics, the end-of-life group was more likely to rate their oral health (odds ratio [OR] = 2.94, 95% confidence interval [CI]: 1.32, 6.54) and overall health (OR = 2.35, 95% CI: 1.12, 4.91) as bad than the comparison group. End-of-life participants were also more likely to dislike their mouth appearance (OR = 2.27, 95% CI: 1.07, 4.83) and rate their ability to taste (OR = 7.24, 95% CI: 2.64, 19.77) and smell (OR = 2.98, 95% CI: 1.09, 8.15) as bad. There was no difference in self-reported oral conditions, use of oral health services, and preventive behaviors.

CONCLUSIONS

Self-rated oral health significantly declines in the last year of life.

Dental care utilization among North Carolina rural older adults

OBJECTIVES

This analysis delineates the predisposing, need, and enabling factors that are associated with regular and recent dental care in a multiethnic sample of rural older adults.

METHODS

A cross-sectional, comprehensive, oral-health survey conducted with a random, multiethnic (African American, American Indian, white) sample of 635 community-dwelling adults aged 60 years and older was completed in two rural southern counties. Logistic regression models assessed the simultaneous associations of dental care with predisposing, enabling, and need factors.

RESULTS

Almost no edentulous rural older adults received dental care; 27.1 percent of dentate rural older adults had received regular dental care, and 36.7 percent had received recent dental care. Predisposing (less than high-school education, dental anxiety), enabling (no regular place for dental care), and need factors (no filled teeth) reduced the odds of regular dental, while predisposing (dental anxiety), enabling (no regular place for dental care), and need factors (no filled teeth) reduced the odds of recent dental care. Having excellent, very good, or good self-rated oral health increased the odds of receiving regular and recent dental care.

CONCLUSIONS

Regular and recent dental care are infrequent among rural older adults. Contrary to expectations, those not receiving dental care are those who most need care; this has been referred to as the Paradox of Dental Need. Community access to dental care and the ability of older adults to pay for dental care must be addressed by public-health policy to improve the health and quality of life of older adults in rural communities.

The need for dental care among adults presenting to an urban ED

OBJECTIVE

The study aimed to estimate the prevalence of need for dental care among patients in the ED and assess associated characteristics.

METHODS

This was a cross-sectional study conducted in the emergency department (ED) of a level I trauma center between June 1 and August 31, 2009. All ED patients were prospectively screened during randomly selected 8-hour blocks of time; consenting patients completed a survey on sociodemographics and health. The treating clinician completed an oral health examination to determine the patient's need for dental care as none (continue usual care), early (need to be seen soon), or urgent (need to be seen immediately). Data were analyzed using logistic regression.

RESULTS

There were 4670 patients who presented to the ED, 2787 (59.7%) were eligible, 1190 (63.2%) consented and enrolled, and 653 (54.9%) had a dental examination. Of these, 388 (59.4%; 95% confidence interval [CI], 56%-63%) had no need for dental care, 199 (30.5%; 95% CI, 27%-34%) had an "early need," and 66 (10.1%; 95% CI, 8%-12%) had an "urgent need." Logistic regression showed the need for dental care was associated with age, ethnicity, and having not had a routine checkup/cleaning in the last 3 years.

CONCLUSIONS

Of the patients presenting to the ED, 40.6% were in some need of dental care. This need was not associated with insurance or socioeconomic status as shown in previous studies. Age, ethnicity, and no routine oral care in the last 3 years were all associated with early/urgent need for oral health care.

Differences in self-reported oral health among community-dwelling black, Hispanic, and white elders

OBJECTIVE

To compare differences in self-rated oral health among community-dwelling Black, Hispanic, and White adults aged 60 and older.

METHOD

A total of 4,859 participants in the National Health and Nutrition Examination Survey (1999-2004) provided self-report information on oral health.

RESULTS

Blacks and Hispanics reported poorer self-rated oral health than Whites. In separate dentate and edentulous groups, socioeconomic status, social support, physical health, clinical oral health outcomes, and dental checkups accounted for much of the difference in self-rated oral health in Blacks, but significant differences remained for Hispanics.

DISCUSSION

The study findings may have important implications for health policy and program development. Programs and services designed for minority populations should target treatments for dental diseases and include components that take into account subjective evaluations of oral health conditions and perceived dental needs of the individuals.

Patterns of dental service use among homeless people using a targeted service

OBJECTIVE

The objective of this study was to describe the patterns of dental service use among homeless people using a targeted dental service from 1992 to 2001.

METHOD

A case-note review of a selection of patients (n = 204) was undertaken using a pre-designed data abstraction form.

RESULTS

For those presenting at their first contact, 40 percent (n = 68) expressed need in relation to oral pain and disease/tissue damage, and 28 percent (n = 33) in relation to dental checking and oral prophylaxis. Most homeless people had normative need for dental treatment (93 percent: n = 153). The dental service was delivered using a mix of outreach and fixed site clinics, with 75 percent (n = 153) of all first contacts made at outreach clinics. The targeted service was moderately successful at getting people to attend the fixed site service for continuing care, with 51 percent (n = 87) attending for subsequent visits. Location of first contact with the targeted dental service did not predict subsequent attendance. Those who did attend for further care tended to have normative needs for periodontal disease and dental decay and have their presenting complaint met. Only 23 percent (n = 46) of people completed a treatment plan, over a mean of 8.2 (standard deviation +/- 9.4) visits. No factors appeared to predict completion of treatment.

CONCLUSIONS

While the small sample limits the findings in this study, it is hypothesized that the presence of the dental service promoted uptake of dental care. Flexible attendance tended to result in multiple visits and delayed outcomes, which themselves could have acted as barriers to care.

Frequency of persistent tooth pain after root canal therapy: a systematic review and meta-analysis

INTRODUCTION

Little is known about the frequency of persistent pain after endodontic procedures even though pain is a core patient-oriented outcome. We estimated the frequency of persistent pain, regardless of etiology, after endodontic treatment.

METHODS

Persistent tooth pain was defined as pain present > or = 6 months after endodontic treatment. Endodontic procedures included in the review were pulpectomy, nonsurgical root canal treatment, surgical root canal treatment, and retreatment. Four databases were searched electronically complemented by hand searching. Two independent reviewers determined eligibility, abstracted data, and assessed study quality. A summary estimate of persistent all-cause tooth pain frequency was established by using a random-effects meta-analysis. Using subgroup analyses, we explored the influence of treatment approach (surgical/nonsurgical), longitudinal study design (prospective/retrospective), follow-up rate, follow-up duration, initial treatment versus retreatment, and quality of reporting (Strengthening the Reporting of Observational Studies in Epidemiology rankings) on the pain frequency estimate.

RESULTS

Of 770 articles retrieved and reviewed, 26 met inclusion criteria. A total of 5,777 teeth were enrolled, and 2,996 had follow-up information regarding pain status. We identified 168 teeth with pain and derived a frequency of 5.3% (95% confidence interval, 3.5%-7.2%, p < 0.001) for persistent all-cause tooth pain. High and statistically significant heterogeneity among studies (I2 = 80%) was present. In subgroup analysis, prospective studies had a higher pain frequency (7.6%) than retrospectives studies did (0.9%). Quality of study reporting was identified as the most influential reason for study heterogeneity.

CONCLUSIONS

The frequency of all-cause persistent tooth pain after endodontic procedures was estimated to be 5.3%, with higher report quality studies suggesting >7%.

Predictors of dental care utilization among working poor Canadians

OBJECTIVE

This study used the Gelberg-Andersen Behavioral Model for Vulnerable Populations to identify predictors of dental care utilization by working poor Canadians.

METHODS

A cross-sectional stratified sampling study design and telephone survey methodology was used to collect data from a nationally representative sample of 1049 working poor individuals aged 18 to 64 years. Working poor persons worked > or = 20 h a week, were not full-time students and had annual family incomes <$34,300. A pretested questionnaire included sociodemographic items, self-reported oral health measures and two dental care utilization outcomes: time since their last dental visit and the usual reason for dental visits.

RESULTS

Hierarchical stepwise logistic analyses identified independent predictors associated with visiting the dentist >1 year ago: male gender (OR = 1.63; P = 0.005), aged 25-34 years (OR = 2.05; P = 0.02), paying for dental care with cash or credit (OR = 2.31; P < 0.001), past welfare recipients (OR = 1.65; P = 0.03), <21 teeth (OR = 4.23; P < 0.001) and having a perceived need for dental treatment (OR=2.78; P < 0.001). Sacrificing goods or services to pay for dental treatment was associated with visiting the dentist within the past year. The predictors of visiting the dentist only when in pain/trouble were lone parent status (OR = 4.04; P < 0.001), immigrant status (OR = 1.72; P = 0.006), paying for dental care with cash or credit (OR = 2.71; P < 0.001), a history of an inability to afford dental care (OR = 1.62; P = 0.01), a satisfactory/poor/very poor self-rated oral health (OR = 2.10; P < 0.001), number of teeth <21 (OR = 2.58; P < 0.001) and having a perceived need for dental treatment (OR = 2.99; P < 0.001).

CONCLUSIONS

This study identified predisposing and enabling vulnerabilities that jeopardize the dental care-seeking practices of working poor persons. Dental care utilization was associated with relinquishing spending on other goods and services, which suggests that dental care utilization is a competing financial demand for economically constrained adults.

Toothache pain: behavioral impact and self-care strategies

A computer-assisted telephone interview in Maryland of adults who had low income and were Hispanic, Black, and White and who had experienced a toothache during the previous 12 months was conducted. Respondents reported a high prevalence of toothaches, with 44.3% having experienced more than five toothaches during the preceding 10 years. Pain intensity associated with the most recent toothache was high with 45.1% of the respondents reporting the highest pain possible. Pain interfered with many aspects of normal functioning. Self-care strategies generally took precedence over professional health services. Pain sufferers used a combination of self-care and formal care strategies. Initial strategies most often focused on nonprescription medicines(home remedies and prayer. The majority of respondents ultimately sought pain relief from a dentist. We identified a number of significant differences in the strategies used across racial/ethnic groups.

The role of non-dental health professionals in providing access to dental care for low-income and minority patients

The disadvantaged suffer disproportionately from dental problems. These persons are more likely to have untreated oral health problems and associated pain, and also are more likely to forego dental treatment even when in pain. There has been increased emphasis on the potential role of physicians in alleviating oral health disparities, especially among children. In addition, many adults lacking access to traditional dental services seek care and consultation from hospital emergency departments, physicians, and pharmacists. The delivery of oral health care services by non-dental health professionals may assume increasing importance as the population continues to age and becomes more diverse. This is because, in general, the elderly and ethnic and racial minorities face significant economic barriers to accessing private dental services.

Patient-level and practice-level characteristics associated with receipt of preventive dental services: 48-month incidence

OBJECTIVES

This study aims to: (a) quantify the incidence of preventive dental services [in-office fluoride application and dental cleaning (prophylaxis)]; (b) determine if these services are effectively targeted to patients with the highest need; and (c) quantify the role of practice characteristics and patient-level factors in service receipt.

METHODS

A population-based prospective cohort study was conducted with 873 adults who had at least one tooth at baseline, 743 of whom provided 48-month data. In-person interviews and clinical examinations were conducted biennially for 48 months, with 6-monthly telephone interviews in between. Dental records were abstracted afterward, and practices that served participants completed questionnaires. Analysis was limited to persons with at least one dental visit of any type during follow-up (87 percent of the sample).

RESULTS

Only 9 percent of the persons received at least one fluoride application; 75 percent received a dental cleaning. Persons with high need were actually less likely to have received preventive services. In multivariable regression analyses, characteristics of the practice in which the subject received care were very strongly related to fluoride receipt, independent of patient-specific characteristics.

CONCLUSIONS

One preventive procedure was common; the other was uncommon. However, practices did not effectively target high-risk patients for either procedure. Instead, both services were typically received by persons with the least need for them. These findings are consistent with the conclusion that practitioners greatly influenced the delivery of fluoride services, with substantial contributions also made by patient-level predisposing and enabling factors for both preventive services.

Racial differences in baseline treatment preference as predictors of receiving a dental extraction versus root canal therapy during 48 months of follow-up

OBJECTIVE

This study aimed to test hypotheses that: a) treatment preference as stated at baseline predicts subsequent receipt of extraction (EXT) versus root canal treatment; and b) racial differences in treatment preference at baseline account for racial differences in receipt of these treatments during follow-up.

METHODS

Data were taken from the Florida Dental Care Study This stratified random sample included at baseline 873 subjects, all of whom were 45-years-old or older, reported race as non-Hispanic African American or non-Hispanic white, and had at least one tooth. At baseline, participants were asked about past dental care characteristics, history of or current presence of various dental diseases and conditions, and sociodemographic circumstance. An EXT/root canal treatment "CHOICE" scenario was also queried at baseline. Predisposing, enabling, and need factors were tested as predictors of EXT/root canal treatment received during follow-up. Bivariate multivariable logistic regression analyses quantified associations between the outcomes (EXT/root canal) and the predictors.

RESULTS

Receipt of EXT or root canal treatment during follow-up was strongly related to race even after people with mobile teeth at baseline were excluded from the analysis. Certain baseline factors (tooth mobility, periodontal attachment level, and ability to pay an unexpected dental bill) strongly predicted EXT/root canal treatment receipt during follow-up, although significant race effects remained; however, including "CHOICE" removed the race effect.

CONCLUSIONS

Baseline treatment preference strongly predicts subsequent receipt of EXT versus root canal treatment. Racial differences in treatment received during follow-up were explained by baseline racial differences in treatment preference, tooth mobility, and periodontal status.

Toothache pain: a comparison of visits to physicians, emergency departments and dentists

BACKGROUND

Researchers' understanding of the use of emergency departments (EDs) and physicians' offices for the treatment of toothaches is limited. The authors conducted a study to explore their use by low-income and minority adults in comparison with the use of traditional dental services.

METHODS

Participants included low-income white, African-American and Hispanic adults who had experienced a toothache during the previous 12 months. A stratified random sample of 4,200 households in Maryland participated in a cross-sectional telephone survey. Trained survey staff completed interviews with someone in 272 (68.3 percent) of 398 eligible households.

RESULTS

Only 8.7 percent of respondents contacted an ED for toothache pain relief, while 20.1 percent contacted physicians. The majority of respondents who contacted an ED (80.5 percent) or a physician (82.6 percent) also contacted a dentist. Contacts with a dentist were reported by 58.6 percent of respondents. The authors conducted tabular analyses using chi(2) tests of statistical significance (P < .05) and SUDAAN's multivariable logistic regression procedure (Research Triangle Institute, Research Triangle Park, N.C.) (P < .05).

CONCLUSIONS

Respondents experiencing toothache pain ultimately sought definitive resolution of their pain from dentists while visiting EDs and physicians for temporary relief. Access to dentists' services was particularly problematic for Hispanics and was exacerbated by health literacy issues.

CLINICAL IMPLICATIONS

The elimination of oral health disparities must involve consideration of cultural influences on minority populations, as well as the responsibilities of the dental profession.

The concept of validity in sociodental indicators and oral health-related quality-of-life measures

BACKGROUND

Most of the psychometric instruments used to measure quality of life associated with oral impairment and disability from the perspectives of older adults focus on negative experiences, and pay little attention to the possibility of positive reactions to disablement. This oversight challenges the validity of the instruments in current use, and raises questions about the process used to validate them.

OBJECTIVES

In this study, we consider the general attributes of psychometric validity, and how they have been applied to oral health-related instruments.

CONCLUSIONS AND RECOMMENDATIONS

The psychometric characteristics and predictive validity of existing dental instruments are still weak, probably because the instruments fail to address the broad range of personal variables that influence oral health, disability and quality of life. We recommend, therefore, that a continuous process of validation be adopted to include: (1) assessments of the theoretical framework supporting the instruments; (2) evaluations of the focus and structure of the questions used; and (3) enhancements of the prediction value of instruments applicable to oral health-related beliefs and behaviours.

A Single-Item Approach to Screening Elders for Oral Health Assessment

BACKGROUND

Oral health contributes significantly to overall health. Finding a single item that can be used by primary care providers to screen elders who are in need of oral care is important.

OBJECTIVES

The objective of this article was to evaluate usefulness of the item: "Do you have regular dental checkups?" as a means to decide whether an oral health assessment or further referral is indicated. Answering no is postulated as a positive predictor of poor oral health and need for care.

METHODS

This study was a secondary analysis of a nutritional survey of 240 community-dwelling elders. Examiner-rated Kayser-Jones Brief Oral Health Status Examination; self-reported General Oral Health Assessment Index; number of remaining teeth; and pattern of checkups (regular vs. irregular) were evaluated by a trained gerontological nurse practitioner during an in-home assessment.

RESULTS

A dental visit within the past year for any reason was reported by 132 subjects (55.0%), but only 81 (33.8%) reported some sort of regular dental checkups. For dentate elders (n = 147), an irregular checkup was associated with lower educational level, Protestant faith, and Black race. People with irregular checkups scored significantly lower on all three oral indices. The negative predictive values and likelihood ratio negative values ranged 98.7-100.0% and 0.00-0.98, respectively, indicating that this item of interest is valid for ruling-out dentate subjects with good oral health. For edentulous elders (n = 93), the item was less effective.

DISCUSSION

A single item, "Do you have regular dental checkups?" can be used effectively to rule out dentate elders with good oral health and identify those who are in need of further oral health assessment or referrals.

Perceived dental treatment need among older Tanzanian adults - a cross-sectional study

Background

Need perceptions for dental care play a key role as to whether people in general will seek dental care. The aim was to assess the prevalence of perceived need of problem based dental care, dental check-ups and any type of dental care. Guided by the conceptual model of Wilson and Cleary, the relationship of perceived need for dental care with socio-demographic characteristics, clinically defined dental problems and self-reported oral health outcomes was investigated. Partial prosthetic treatment need was estimated using a socio-dental approach.

Method

A cross-sectional survey was conducted in Pwani region and in Dar es Salaam in 2004/2005. Information from interviews and clinical examination became available for 511 urban and 520 rural adults (mean age 62.9 yr).

Results

51.7% (95% CI 46.2, 57.0) urban and 62.5 % (95% CI 53.1, 70.9) rural inhabitants confirmed need for dental check-up, 42.9% (95% CI 36.9, 48.9) urban and 52.7% (95% CI 44.5, 60.6) rural subjects confirmed need for problem oriented care and 38.4% (95% CI 32.4, 44.6) urban versus 49.6% (95% CI 41.8, 57.4) rural residents reported need for any type of dental care. Binary and ordinal multiple logistic regression analyses revealed that adults who reported bad oral health and broken teeth were more likely to perceive need for dental care across the three outcome measures than their counterparts. Socio-demographic factors and clinically defined problems had less impact. Based on a normative and an integrated socio-dental approach respectively 39.5% and 4.7% were in need for partial dentures.

Conclusion

About half of the participants confirmed need for problem oriented care, dental check-ups and any type of dental care. Need perceptions were influenced by perceived oral health, clinically assessed oral problems and socio-demographic characteristics. Need estimates for partial denture was higher when based on clinical examination alone compared to an integrative socio-dental approach.

Racial differences in treatment preferences: oral health as an example

RATIONALE, AIMS AND OBJECTIVES

Recent analyses from the Florida Dental Care Study found that response to a hypothetical scenario at baseline strongly predicted: (a) tooth loss during follow-up; and (b) subsequent receipt of either a dental extraction or Root Canal Therapy (RCT). The scenario ('CHOICE') required choosing either to: (1) extract the tooth before even knowing the cost of treatments; (2) extract, but after knowing the cost of all treatments; or (3) have RCT despite knowing costs.

OBJECTIVE

The purpose of this study was to identify factors associated with CHOICE and quantify their effects.

METHODS

As part of the baseline phase of the study, 873 subjects with at least one tooth and who were 45 years or older participated for an interview and dental examination. A multinomial multivariable regression of CHOICE quantified effects due to hypothesized predictors.

RESULTS

CHOICE was strongly associated with race (African-Americans were significantly less likely to choose RCT). Results from the multivariable regression suggest that the race effect could be explained by racial differences in patient preference, treatment acceptability and ability to afford treatment.

CONCLUSIONS

There were substantial racial differences in treatment preference even in this hypothetical scenario where racial differences in patient-provider interaction and clinical factors were not relevant. Certain predisposing and enabling variables explained these racial differences in treatment preference.

Practice characteristics associated with patient-specific receipt of dental diagnostic radiographs

OBJECTIVE

To quantify the role of practice characteristics in patient-specific receipt of dental diagnostic radiographic services.

DATA SOURCE/STUDY SETTING

Florida Dental Care Study (FDCS). Study Design. The FDCS was a 48-month prospective observational cohort study of community-dwelling adults. Participants' dentists were asked to complete a questionnaire about their practice characteristics.

DATA COLLECTION/EXTRACTION METHODS

In-person interviews and clinical examinations were conducted at baseline, 24, and 48 months, with 6-monthly telephone interviews in between. A single multivariate (four radiographic service outcomes) multivariable (multiple explanatory covariates) logistic regression was used to model service receipts.

PRINCIPAL FINDINGS

These practice characteristics were significantly associated with patient-specific receipt of radiographic services: number of different practices attended during follow-up; dentist's rating of how busy the practice was; typical waiting time for a new patient examination; practice size; percentage of patients that the dentist reported as interested in details about the condition of their mouths; percentage of African American patients in the practice; percentage of patients in the practice who do not have dental insurance; and dentist's agreement with a statement regarding whether patients should be dismissed from the practice. Effects had differential magnitudes and directions of effect, depending upon radiograph type.

CONCLUSIONS

Practice characteristics were significantly associated with patient-specific receipt of services. These effects were independent of patient-specific disease level and patient-specific sociodemographic characteristics, suggesting that practitioners do influence receipt of these diagnostic services. These findings are consistent with the conclusion that practitioners act in response to a mix of patients' interests, economic self-interests, and their own treatment preferences.

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.

The relationship between cigarette smoking and perceived dental treatment needs in the United States, 1988–1994

BACKGROUND

Although factors affecting perceived dental treatment needs have been investigated, the effect of smoking status on perceptions of dental needs has not been examined.

METHODS

The authors examined data on 13,227 dentate people aged 20 to 79 years from the Third National Health and Nutrition Examination Survey (NHANES III). Information was collected information on sociodemographic characteristics, cigarette smoking, perceived dental treatment needs and other factors during a home interview, and clinical oral health information was collected at a mobile examination center.

RESULTS

In univariate analyses, current smokers were more likely than nonsmokers to perceive dental needs in all categories, except for the need for a dental cleaning. Multivariate regression results indicate that current smokers were more likely to report a need for periodontal treatment and dental extractions compared with nonsmokers (odds ratio [OR] = 1.40; 95 percent confidence interval [CI] = 1.05-1.87 and OR = 1.61; 95 percent CI = 1.22-2.14, respectively). The authors found an interaction between smoking and race/ethnicity in models describing the need for teeth to be filled/replaced and for orthodontic/cosmetic work.

CONCLUSIONS

Current smokers were more likely to have more perceived dental needs compared with nonsmokers. Practice Implications. These results may be important for the advancement of efforts directed toward tobacco-use cessation programs and to understand factors that could affect dental care utilization.

Forty-Eight–Month Periodontal Attachment Loss Incidence in a Population-Based Cohort Study: Role of Baseline Status, Incident Tooth Loss, and Specific Behavioral Factors

BACKGROUND

The objectives of this study were to: 1) test hypotheses that behavioral factors, baseline clinical status, and incident tooth loss are significantly associated with attachment loss incidence (ALI) and 2) quantify the effect of incident tooth loss on conclusions made about ALI.

METHODS

The Florida Dental Care Study was a prospective study of persons > or =45 years old. In-person interviews and examinations were conducted at baseline and 48 months, with telephone interviews in between.

RESULTS

Of 560 persons with baseline and 48-month examinations, 22% of persons and 1.8% of teeth had ALI. This was highest among persons with no dental visit during follow-up (person-level incidence of 46%; 5.0% tooth-level incidence). Statistically significant covariates in a multivariable regression of ALI were: losing a tooth due to periodontal reasons after baseline, but before the 48-month examination; not receiving a dental cleaning; and baseline factors (worst attachment level of > or =7 mm, not flossing, a molar tooth, current smoker).

CONCLUSIONS

A substantial percentage of persons experienced ALI. Baseline attachment level and behavioral factors were significantly associated with ALI. Persons with incident tooth loss were also at increased risk for ALI, and teeth lost during follow-up had worse baseline attachment level. Had these teeth not been lost before the final examination, the ALI estimate could only have been higher. These findings demonstrate that those at greatest risk for ALI are least likely to enter the dental care system, and among those who do, one health outcome (tooth loss) can affect conclusions made about the incidence of another (ALI).

Influence of cigarette smoking on the overall perception of dental health among adults aged 20-79 years, United States, 1988-1994

OBJECTIVE

Investigation into the relationship between lifestyle factors (particularly cigarette smoking) and perceived oral health has been limited. Data from the third National Health and Nutrition Examination Survey (NHANES II), 1988-1994, were used to explore this relationship in a large sample of U.S. adults.

METHODS

This study used data on 13,357 dentate participants in NHANES III aged 20-79 years. In NHANES III, information on perceived dental health, sociodemographic attributes, smoking status, frequency of dental visits, dental insurance, and general health perception were collected during a home interview, and oral health status was assessed at a mobile examination center.

RESULTS

Overall, 34.4% of individuals in the study sample reported having an unfavorable perception of their dental health by qualifying it as "fair" or "poor." Furthermore, 46.6% of smokers had an unfavorable dental health perception, compared to 28.3% of non-smokers. An interaction between smoking and race/ethnicity was found in logistic regression modeling. Stratified results show that cigarette smoking was not a significant predictor for an unfavorable dental health perception among individuals who self-identified as Mexican American, but smoking was a significant predictor for an unfavorable dental health perception among those who identified as non-Hispanic black or non-Hispanic white.

CONCLUSIONS

This is the first study to describe the effects of smoking on dental health perception while controlling for examined oral health status. Because perceived dental health is a potential indicator for dental care utilization, a better knowledge of the factors that influence dental health perception is not only important for dental services planning, but also for understanding oral health-related quality of life issues. Additionally, given that smoking may negatively affect dental health perception, these findings have potential implications for smoking cessation activities conducted by dental care providers.

A SAS macro for the analysis of multivariate longitudinal binary outcomes

Multiple binary outcomes occur quite frequently in oral health research, as well as other areas of health care research. When there is interest in comparing whether covariates influence one outcome more than another, statistical methods that adjust for the correlation that may exist between outcomes are warranted. Available software is limited to the extent that some pre-processing of the data is required. The main objective of this paper is to describe a SAS macro that can be used to estimate separate covariate effects on multiple, correlated binary outcomes. We demonstrate the utility of the macro by applying it to fit a trivariate logistic regression model using GEE where the three correlated longitudinal outcomes of interest include whether a subject had a problem-oriented visit, a dental cleaning, or a routine check-up, or some combination thereof. All three outcomes were measured at four 6-monthly intervals (0-24 months). Estimates from the trivariate logistic regression model are compared to results obtained by fitting three separate binary longitudinal models using GEE for each oral health outcome. The odds of having a problem-oriented visit were greater for males compared to females as estimated from the multivariate model (P = 0.0407), but the odds were not significant in the univariate model (P = 0.0641). The multivariate model also aided in confirming expected results that consistent regular attenders (compared to consistent problem-oriented attenders) had greater odds of having received dental cleaning and check-ups relative to having problem-oriented visits (chi2 = 33.47, P < 0.01), and that those with broken teeth or broken filling (compared to those without) are at greater odds of having a problem-oriented visit relative to having dental cleaning or checkups (chi2 = 34.12, P < 0.01 and chi2 = 17.11, P < 0.01).

Root Canal Treatment in a Population-Based Adult Sample: Status of Teeth After Endodontic Treatment

The purpose of this study was to quantify treatment outcomes of endodontically treated teeth, in a representative, population-based adult sample. The "Florida Dental Care Study" was a prospective, longitudinal, cohort study of 873 subjects who had at least one tooth at baseline and who were 45 yr or older. An in-person interview and clinical examination were conducted at baseline, 24 months, and 48 months after baseline, with 6-monthly telephone interviews between those times. Dental record information was abstracted afterward. Seventy-five teeth had conventional root-canal therapy (RCT) performed and met the inclusion criteria of 1-yr of follow-up or extraction. The mean duration of follow-up after RCT was 24.8 months. The mean (SD) attachment loss (AL) on teeth receiving RCT was only 3.3 (1.4) mm. Permanent restorations were placed in 79% of teeth a mean of 4.4 months after the RCT. However, 12% of teeth did not have any restorative treatment after RCT. After RCT had been completed, 81% of teeth were retained and 19% were ultimately extracted. Taken as a whole, this community-based study of a representative sample of adults suggests a higher failure rate than reported from studies in highly controlled environments or insured populations. It also suggests that the length of time to initial restoration of RCT-treated teeth is less than optimal. RCT was almost never performed on teeth with advanced periodontal attachment loss.

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.

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.

Incidence of dental radiographic procedures during a 48-month population-based study of dentate adults

OBJECTIVES

The purpose of this population-based study was to quantify the incidence of radiographic procedures and the intervals between radiographic exposures.

STUDY DESIGN

The Florida Dental Care Study was a prospective cohort study of a representative sample of dentate adults. In-person interviews and dental examinations were conducted at baseline, with subsequent interviews every 6 months during 48 months of follow-up. Dental record information was abstracted afterward.

RESULTS

Thirteen percent of all dental procedures, and 42% of all diagnostic procedures, were radiographic. Annual person-level incidence of receipt of any radiograph was 48%. Incidence of specific types of radiographic procedures ranged from 5% to 30%. Among the 45% of the sample population who had had more than 1 bitewing procedure, 70% of the intervals between bitewing exposures were 1 year or longer. Receiving more than 1 full-mouth series or panoramic radiographic in any 24-month period was very rare.

CONCLUSIONS

Annual incidence of radiographic procedures was substantially higher than the incidence reported in previous studies based on responses by dentists to hypothetical situations, but was stable during the 4 years of follow-up. On the basis only of intervals between exposures, and not of clinical status on the day of service, there was no substantial evidence of inappropriately frequent radiographic examinations.