Thomas F. Drury

Maryland Dentists' Knowledge of Oral Cancer Risk Factors and Diagnostic Procedures

A questionnaire was mailed to 800 Maryland general practice dentists to assess their knowledge of risk factors and diagnostic procedures for oral cancer. Two indices were created based on 14 questions on knowledge of oral cancer risk factors and 9 questions on oral cancer diagnostic procedures. Data were analyzed statistically and evaluated with an alpha level of 0.05. Nearly all respondents identified use of tobacco, prior oral cancer lesions, and use of alcohol as risk factors. However, only 36% correctly identified that poor-fitting dentures are not a risk factor and 58% that poor oral hygiene is not a risk factor. Nearly 87% knew how to examine the tongue and surrounding areas, and 32% identified erythroplakia and leukoplakia as conditions associated with oral cancer. Appropriate knowledge about risk factors and diagnostic procedures is essential for dentists to counsel their patients and perform appropriate oral cancer examinations.

Use of skin and oral cancer examinations in the United States, 1998

BACKGROUND Findings from previous surveys suggest low utilization of oral cancer examinations, even though this examination is noninvasive. The purpose of this analysis is to compare the use of an oral cancer examination (OCE) and a skin cancer examination (SCE) in the past 12 months within the United States. Both exams are noninvasive and include a visual component. METHODS Weighted data from the Adult Prevention Supplement of the 1998 National Health Interview Survey (NHIS) for adults 40 years of age or older were analyzed using SAS and SUDAAN. A ratio compared the percentage reporting an OCE (%OCE) with the percentage reporting a SCE (%SCE). RESULTS The percentage having an OCE in the past year (13.8%) was very similar to the percentage having a SCE (13.5%) during that same period. With increasing age group, the %OCE/%SCE ratio varied inversely from 1.60 (C.I. 1.42-1.78) among persons 40-49 years to 0.62 (C.I. 0.55-0.69) among persons 70+ years. The ratio was similar in whites and blacks, males and females, and Hispanics and non-Hispanics. There was a positive gradient in the ratio by education and family income. CONCLUSIONS Overall, less than 15% of the population is receiving either of these examinations, although the American Cancer Society recommends both of them on an annual basis for individuals 40 years of age and older. To increase detection of these cancers at early stages, extensive educational and media campaigns for the public and providers identifying risk factors and the availability of and the need for these examinations are required.

U.S. dental hygienists’ knowledge and opinions related to providing oral cancer examinations

BACKGROUND Because U.S. dental hygienists play a significant role in providing prevention and early-detection services, it is important to describe and evaluate their oral cancer knowledge and opinions. METHODS A pretested survey, cover letter, and prepaid return envelope were mailed to 960 dental hygienists, followed by three complete follow-up mailings. RESULTS The respondents were not as knowledgeable about oral cancer risk factors and diagnostic procedures as hypothesized. Although the respondents were well informed about certain key aspects of oral cancer risk factors and diagnostic procedures, there were many aspects of these topics in which they were deficient and in some cases misinformed. CONCLUSIONS Dental hygiene curricula should be updated and continuing education coursesabout oral cancer should be developed and implemented.

Oral Cancer Examinations among U.S. Hispanics in 1998

BACKGROUND An oral cancer examination (OCE) is crucial for early detection of oral and pharyngeal cancers. The objectives of this study were: 1) to estimate the percentages of Hispanics and Hispanic subgroups who reported having an OCE in the past 12 months; 2) to compare these groups with various Non-Hispanics; and 3) to evaluate the extents to which having an OCE might be explained by age, gender, education, family income, a recent visit to a dentist, and edentulism. METHODS Descriptive and logistic regression analyses using data from the 1998 National Health Interview Survey. RESULTS 6.4% of Hispanics and 14.5% of non-Hispanics had had an OCE in the past 12 months. After adjusting for age, gender, education, income, a dental visit, and edentulism, Hispanics were 1.7 times less likely than non-Hispanics to have had an OCE in the past 12 months. CONCLUSIONS Fewer Hispanics are receiving OCEs relative to Non-Hispanics.