Knowledge of Oral Health Issues Among Low?Income Baltimore Adults: A Pilot Study

Your critique paper needs to include the following:
1. Introduction: the description of the importance of the topic
2. Description of the study including the objective(s) of the study, the study design, methods, results and conclusions by the authors.
3. Identification of strengths of the study and explanation of why they are strengths.
4. Identification of weaknesses/limitations of the study and explanation of why they are weaknesses/limitations.
5. Description of whether you support the authors? conclusions and why.
6. The reference* APA style-Please refer to your handbook/clinic manual for format of writing assignments for Dental Hygiene assignments. An abstract is not necessary for this assignment
7. A copy of the article.
8. A copy of the Rubric.
9. Please limit your papers to no more than three pages double spaced.
Note: Items 3, 4, and 5 should be the in depth and insightful.
The following website, even though not specifically related to dental hygiene research, has more information on how to do an article critique.
Vol. 85 ? No. 1 ? Winter 2011 The Journal of Dental Hygiene 49
Introduction Parker and Ratzan defined health literacy as the ?degree to which indi- viduals have the capacity to obtain, process and understand basic health information and services needed to make appropriate health decisions.?1 Researchers believe that health lit- eracy encompasses a constellation of health?related abilities, including word recognition, reading compre- hension, communication skills and conceptual knowledge.2 National data show that limited health liter- acy is widespread within the popula- tion. According to the 2003 National Adult Assessment of Literacy, 22% of adults had only basic literacy skills, and 14% of adults had below?basic abilities.3 Among those most likely to have been affected were seniors, individuals for whom English was a second language and low?income and minority adults.
There have been numerous inves- tigations regarding the links between health literacy and general health in the literature. These studies have shown that limited health literacy is associated with lower knowledge of disease management and health? promoting behaviors, poorer health status and lower utilization of health care services.4 These studies have also shown that limited health litera- cy is associated with higher rates of hospitalization, greater use of emer- gency services and higher medical costs.5,6 By comparison, there have been relatively few investigations concerning the links between health literacy and oral health. These
Knowledge of Oral Health Issues Among Low?Income Baltimore Adults: A Pilot Study Mark D. Macek, DDS, DrPH; Marion C. Manski, RDH, MS; MaryAnn T. Schneiderman, RDH, MS; Sarah J. Meakin, RDH; Don Haynes, PhD; William Wells, MPA; Simon Bauer?Leffler, PhD; P. Ann Cotten, DPA, CPA; Ruth M. Parker, MD Research
Abstract Purpose: This pilot study documents conceptual knowledge of oral health among low?income adults in Baltimore. Methods: Selected questions from the Baltimore Health Lit- eracy and Oral Health Knowledge Project, a cross?sectional, population?based investigation of oral health literacy, were used for this analysis. Participants were asked questions during face? to?face interviews about basic oral health and the prevention and management of dental caries and periodontal diseases. Descriptive analyses included tests of association with selected socio?demographic variables (age, sex, education level, annual household income). Results: The majority of respondents were African American women, 45 to 64 years of age, with 12 years of education and an income less than or equal to $25,000. Ninety?one percent of respondents knew that sugar caused dental caries, while 82% understood that the best way to prevent tooth decay was to brush and floss every day. Knowledge of oral hygiene practices and the prevention and management of gingivitis and periodon- titis was mixed. Seventy?six percent understood that the best way to remove tartar was by a dental cleaning. However, only 15% knew how often to floss their teeth and only 21% knew that plaque was composed of germs. Conclusion: Conceptual oral health knowledge is one compo- nent of oral health literacy. In turn, oral health literacy impacts communication. Practitioners should account for limited concep- tual knowledge when they discuss oral health issues with their low?income and minority patients. If this is not accounted for, they will probably find that their oral hygiene education mes- sages are being ignored and health promotion is being adversely affected. Keywords: adults, knowledge, oral health, oral hygiene, peri- odontal diseases, questionnaires This study supports the NDHRA priority area, Health Promo- tion/Disease Prevention: Assess strategies for effective com- munication between the dental hygienist and client
50 The Journal of Dental Hygiene Vol. 85 ? No. 1 ? Winter 2011
studies primarily showed that limited oral health lit- eracy is associated with poor oral health quality of life.7?9 Despite the dearth of studies linking health literacy and oral health, there is wide agreement that they are related. In 2008, the American Dental Association (ADA) stated that ?limited oral health literacy is a potential barrier to effective prevention, diagnosis and treatment of oral disease.?10 Horowitz and Kleinman added that ?being able to understand health information and how to obtain services is criti- cal to oral health management.?11 Several investiga- tions of oral health literacy are ongoing and should provide support for additional associations between health literacy and oral health in the future.
The purpose of this pilot investigation is to docu- ment conceptual knowledge of oral health issues among a population of low?income adults. Findings will be useful to practitioners who wish to empha- size particular health education topics when they communicate with their low?income adult patients. Results will also be useful to policymakers who wish to tailor health education messages to underprivi- leged communities. Dental hygiene faculty will find the results valuable for designing health education curricula.
Review of the Literature Health literacy is the bridge between having knowledge and applying that knowledge to one?s health care. Accurate and timely knowledge enables an individual to control a variety of challenging health?related situations and scenarios.12 Acquisi- tion of knowledge from print and broadcast media stems from familiarity with the vocabulary that is being used. Unfortunately, most patient brochures and other educational materials require a reading level far above that of the average person.13?15 The majority of health educational materials are written at the tenth and eleventh grade level, whereas a more appropriate level would be fifth or sixth grade level.12 For those with limited health literacy, gain- ing knowledge from these educational sources of information is especially challenging. Acquisition of knowledge from encounters with other persons also relates to familiarity with vocabulary, however, it is also associated with a variety of interpersonal fac- tors, including culture and social position.16,17
According to a National Institute of Dental and Craniofacial Research work group on health literacy, improving understanding of oral health issues by the public will follow from increased sensitivity to the social and cultural factors that affect oral health, comprehensive health educational programs offered to students in the K?12 and adult education systems and greater attention to communication between
patient and provider.18 Horowitz and Kleinman stat- ed that effective communication is the key to quality and success in oral health care.11 The ADA?s House of Delegates echoed this sentiment when it stated ?clear, accurate and effective communication is an essential skill for effective dental practice.?10 Good communication is an integral part of dental hygiene practice, particularly as it relates to the prevention and management of oral conditions such as dental caries, periodontal disease and oral cancer.
When communicating with their patients, health care providers may believe they are using layman?s terms when, in fact, they are using technical terms and jargon that are unclear to the patient. Conse- quently, the messages imparted become irrelevant.19 Manner of communication is also important. Cultur- ally appropriate content that focuses on actions and behaviors is preferred over detailed facts.12 Patients also appreciate practical information that motivates action.
For the provider, communicating so the patient is involved may lead to increased understanding and better decision?making.19 One such type of commu- nication is motivational interviewing (MI). Using MI, the health care provider establishes rapport with the patient which, in turn, leads to the patient feel- ing more comfortable with decision?making.20 This pattern of communication is likely to work especially well for those with limited health literacy, as it es- tablishes interactive dialogue and offers the patient some level of control. One additional technique to improve communication involves using a teach back method. The patient is asked to summarize discus- sions and demonstrate skills to the practitioner, pro- viding evidence that knowledge has been imparted or not imparted.11
Data for the present study was derived from the Baltimore Health Literacy and Oral Health Knowl- edge Project (BHLOHKP), a cross?sectional inves- tigation of oral health literacy conducted by select- ed authors on the present article. The BHLOHKP utilized a comprehensive questionnaire to assess knowledge in 4 broad topic areas:
Basic oral health1.
Prevention and management of dental caries2.
Prevention and management of periodontal 3. disease
Prevention and management of oral cancer4.
Methods and Materials
Vol. 85 ? No. 1 ? Winter 2011 The Journal of Dental Hygiene 51
The BHLOHKP was designed to assess whether conceptual knowledge in these 4 broad topic areas was associated with word recognition and reading comprehension ? 2 accepted measures of health literacy.21 The present article used selected data from the BHLOHKP to describe conceptual knowl- edge results of particular interest to dental hygien- ists. Additional analysis describing the conceptual knowledge findings thought to be of interest to general and pediatric dentists are planned for the future.
The BHLOHKP questionnaire was developed in 2 phases. During the first phase, a panel of dental content experts developed a list of open?ended questions related to each of the 4 broad topic areas. The open?ended questions were then administered to a sample of 16 low?income adults from Baltimore during a pilot?testing session. Participants were also asked to comment on the wording and format- ting of each survey item. During the second phase of questionnaire development, responses gener- ated during the pilot?testing session were used to create multiple?choice versions of each open? ended question. Comments regarding wording and formatting were also used to guide decisions about the appropriate number of questionnaire items. The resulting multiple?choice questionnaire con- tained a total of 44 items. A convenience sample of 15 practicing dentists from Maryland was asked to review the draft questionnaire, and minor changes to the wording and ordering of survey items were subsequently made.
Sampling Method
Researchers at the University of Baltimore?s Schaefer Center for Public Policy randomly selected study participants for the present study from a list of Baltimore residents who had documented land- line telephones. Telephone numbers were matched against mailing addresses to maximize the number of residences in the sample. In order to facilitate the objectives of the research project, participants were drawn mainly from areas in Baltimore where the U.S. Bureau of the Census indicated lower lev- els of educational achievement in comparison to the general population of Baltimore.
Those who agreed to participate during ini- tial telephone contact were sent a follow?up let- ter confirming participation. Reminder telephone calls were made both the day before and the day of the scheduled interview appointment. Among residences contacted, 231 adults said they were willing to participate in the study and were given an appointment. Of these, 100 adults presented to their appointed time. Interviewed participants
received a $25 payment and a packet containing a toothbrush, floss, toothpaste and a selection of oral health?related brochures. They also received information about safety?net dental clinics in Bal- timore.
Data Collection
Surveys were conducted during face?to?face in- terviews in small conference rooms at the University of Baltimore. Interviewers were trained to conduct the face?to?face sessions in a standardized fash- ion. Instructions were scripted to minimize varia- tion across interviews. Data collection occurred on weekdays between 9:00 a.m. and 8:00 p.m.
Questionnaire items were printed in large font and placed in a bi?fold binder so the participant could view the questions and response categories while the interviewer read the questions aloud. Be- fore interviews began, participants were reminded that if they were not sure of their answer or if they did not know the correct response to a question it was acceptable to answer ?I don?t know.?
Study Variables
The present study limited its focus to the ques- tionnaire items from the BHLOHKP that were most relevant to dental hygiene practice. Among the items highlighted in this report, 4 questions came from the Basic Knowledge section of the survey, 2 from the Knowledge of Dental Caries Prevention and Management section and 8 from the Knowl- edge of Periodontal Disease Prevention and Man- agement section.
In addition to these oral health knowledge ques- tions, participants were also asked questions about several demographic factors, including age (coded as 18 to 44 years, 45 to 64 years and 65 years or more), sex, race (African American, other), educa- tion level (less than 12 years, 12 years and 12 or more years) and annual household income ($0 to $25,000, more than $25,001 or unknown).
Data Management and Analysis
Responses to questionnaire items were recorded on data entry sheets by the interviewers and later transferred into a Microsoft Excel spreadsheet. De- scriptive data analysis was conducted using SAS Statistical Software for Windows (Version 9.1).22 Chi?square statistical tests were used to test as- sociations. Statistical significance was defined by an alpha value of 5%.
Research methods were approved by institution-
52 The Journal of Dental Hygiene Vol. 85 ? No. 1 ? Winter 2011
Results Table I lists characteristics of the study sample. The majority of respondents were African Ameri- can women, 45 to 64 years of age, with 12 years of education and an annual household income that was less than $25,000.
Only 63% of respondents knew that the ADA recommended adults brush their teeth at least 2 times per day. By comparison, 35% percent incor- rectly thought they were supposed to brush every time they ate or drank. Regarding dental visits, only 57% knew that the ADA recommended dental visits twice per year ? 31% incorrectly thought that only 1 visit per year was recommended. Only 27% of respondents knew that the ADA recommended the use of soft?bristled toothbrushes ? 55% mis- takenly thought that the bristles should be medi- um. Only 15% knew they should floss their teeth at least 1 time per day ? 35% incorrectly thought that they were supposed to floss every time they ate or drank. Of these basic knowledge questions, only 1 was significantly associated with demographics ? adults with 12 years or more of education were significantly more likely to know what type of bris- tles a toothbrush should have than were those with fewer years of education.
In general, knowledge of dental caries preven- tion and management was notably higher than it was for basic knowledge. Ninety?one percent of respondents knew that sugar caused dental caries, while 82% understood that the best way to pre- vent tooth decay at home was to brush and floss every day. Realizing that sugar caused dental car- ies was significantly associated with age ? adults aged 45 to 64 years had better knowledge than did those aged 65 years or more. Knowing that regular brushing and flossing was the best way to prevent tooth decay at home was significantly as- sociated with sex ? women had better knowledge than men.
Knowledge of gingivitis and periodontitis was mixed. Of the 8 questions asked, 3 reflected rela- tively high levels of understanding. Seventy per- cent correctly identified ?gums that are puffy and red? as gingivitis, 76% knew that the best way to remove tartar from one?s teeth was by a dental cleaning and 75% knew that failing to brush and floss was the main cause of gingivitis. The remain- ing questions, however, reflected much poorer
knowledge. Only 21% knew that dental plaque was composed of germs ? the majority of respondents (62%) incorrectly thought that plaque was made up primarily of food. In addition, only 29% of re- spondents knew that diabetes was associated with periodontitis, 34% knew that smoking cigarettes was a risk factor for periodontitis and 36% equated gingival recession with periodontitis. Finally, only 39% knew that dentists and dental hygienists usu- ally treat gingivitis with a dental cleaning ? 35% mistakenly believed that prescribing antibiotics was the treatment of choice.
Several of the periodontal disease knowledge questions were significantly associated with edu- cation level. Years of education was significantly associated with knowing the etiology of gingivitis ? adults with less than 12 years of education were less likely to know that it was related to brushing and flossing than were those with 12 or more years of education. Education was also significantly as- sociated with knowing that recession equated with periodontitis ? those with less than 12 years of education were less likely to make the connection between recession and disease than were those with 12 or more years of education. Knowing that smoking cigarettes was a risk factor for periodonti-
Characteristics N Percentage All 100 100.0 Age (years)* 18?44 30 30.3 45?64 43 43.4 >65 26 26.3 Sex Male 45 45.0 Female 55 55.0 Race* African American 92 93.9 Other 6 6.1 Education level* <12 years 20 20.2 12 years 50 50.5 >12 years 29 29.3 Household income Unknown 15 15.0 $0?$25,000 51 51.0 >$25,001 34 34.0
Table I: Sample characteristics, Baltimore, Maryland, 2008 (N=100)
*Total does not sum to 100 due to missing values
al ethics review boards at the University of Mary- land, Baltimore and the University of Baltimore. Informed consent was obtained from each partici- pant and documented.
Vol. 85 ? No. 1 ? Winter 2011 The Journal of Dental Hygiene 53
tis was also significantly associated with education level. Those with less than 12 years of education were less likely to know the connection between smoking and periodontitis than were those with 12 years of education.
The present study revealed that oral health knowledge in Baltimore is mixed. On the positive side, knowledge of dental caries prevention and management was very good. A majority of re- spondents knew that sugar caused dental caries and that brushing and flossing were good ways to prevent tooth decay at home. These findings likely reflected the frequency and consistency by which some oral health messages are being delivered to the public. However, less than half of respondents knew that a toothbrush should contain soft bristles, knew how often they should floss their teeth, knew how to identify periodontal disease, understood the behaviors and conditions that were associated with periodontitis, knew the composition of dental plaque and understood how gingivitis was usually treated. These poor results were rather troubling, especially considering that knowledge of some of these issues related to the topics of better under- standing listed previously. For example, whereas most knew that brushing and flossing prevented tooth decay, relatively few knew how frequently to engage in the activity. Additional attention to these areas of poor understanding follows.
Almost three?quarters of study participants mis- takenly thought that toothbrushes should contain ?medium? or ?hard? bristles. Adults with 12 or less years of education were even more likely to have in- correct knowledge of this topic. Although the survey did not ascertain why respondents thought stiffer bristles were better than soft bristles, one possible explanation was that respondents believed harder bristles cleaned more effectively or lasted longer. Given that using stiffer bristles may be associated with root surface abrasion, gingival recession and sensitivity, incorrect knowledge in this area could be causing undue harm to periodontal tissues.23
Although 15% of respondents knew that they should floss at least 1 time per day, a total of 65% thought they should floss more frequently (35% answered ?every time they ate or drank? and 30% answered ?at least 2 times per day?). On the sur- face, this lack of knowledge might not seem to be a problem ? there may be nothing wrong with floss- ing more often than what is recommended. The problem, however, is that those who believe they should floss at least 2 times per day may believe that this frequency is too burdensome. As a result,
they may refrain from the behavior all together. The relatively low prevalence of flossing in the U.S. supports this possibility.24?26
When shown a photograph of gingival recession, approximately one?third of study participants cor- rectly identified the ?receding gums? as a sign of periodontal disease. For those with less than 12 years of education, only 10% recognized the con- dition. Given that periodontitis is more prevalent in groups with low socioeconomic status (SES),27 poor adults and those with less than a high school level of education are likely to see gingival reces- sion frequently among family and friends. As such, the respondents might not have equated what they commonly saw within their social circles as a sign of disease. In other words, these findings might have reflected expectations (i.e., the public viewed ?becoming long in the tooth? as normal).
In addition to not recognizing the signs of perio- dontitis, less than half of respondents knew that smoking cigarettes and having diabetes were risk factors for the disease. For smoking, this lack of knowledge is problematic because low SES adults are more likely to use tobacco than are their higher SES peers.28 Diabetes is also more common among those with low SES, particularly among women,29 so lack of knowledge of the connection between diabetes and periodontitis is also a problem for low?income adults. However, lacking knowledge of the diabetes and periodontitis connection is also problematic because periodontitis may negatively impact one?s glycemic control.30 As national stud- ies have shown, dentate adults with diabetes are significantly less likely to visit a dentist than those without diabetes.31?33 A lack of knowledge of the diabetes and periodontitis connection may also be adversely affecting dental visit behaviors.
Only 21% of respondents knew that plaque was made of germs. The vast majority (62%) mistak- enly believed that it was composed of food. This lack of knowledge could have potentially impacted whether gingivitis and periodontitis were consid- ered diseases and, by extension, whether brushing and flossing were taken seriously. In other words, study participants might have been less concerned about food buildup on their teeth than they would have been about a buildup of bacteria. Building on this argument, we discovered that 35% of respon- dents thought that prescribing an antibiotic was the usual way that dental professionals treated gingivitis. On the one hand, this incorrect answer suggested that some respondents thought gingi- vitis was, indeed, a disease. On the other hand, believing that antibiotics were necessary also sug- gested that respondents had little understanding of

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