Mouth self-examination to improve oral cancer awareness and early detection in a high-risk population

Exploring Factors Influencing Patient Delay Behavior in Oral Cancer: The Development of a Risk Prediction Model in Western China

BACKGROUND AND AIMS

To study the unknown influencing factors of delayed medical treatment behavior in oral cancer patients in western China and to develop a prediction model on the risk of delayed medical treatment in oral cancer patients.

METHOD

We investigated oral cancer patients attending a tertiary Grade A dental hospital in western China from June 2022 to July 2023. The logistic regression and four machine learning models (nearest neighbors, the RBF SVM, random forest, and QDA) were used to identify risk factors and establish a risk prediction model. We used the established model to predict the data before and after the COVID-19 pandemic and test whether the prediction effect can still remain stable and accurate under the interference of COVID-19.

RESULT

Out of the 495 patients included in the study, 122 patients (58.65%) delayed seeking medical treatment before the lifting of the restrictions of the pandemic, while 153 patients (53.13%) did so after the lifting of restrictions. The logistic regression model revealed that living with adult children was a protective factor for patients in delaying seeking medical attention, regardless of the implementation of pandemic control measures. After comparing each model, it was found that the statistical indicators of the random forest algorithm such as the AUC score (0.8380) and specificity (0.8077) ranked first, with the best prediction performance and stable performance.

CONCLUSIONS

This study systematically elucidates the critical factors influencing patient delay behavior in oral cancer diagnosis and treatment, employing a comprehensive risk prediction model that accurately identifies individuals at an elevated risk of delay. It represents a pioneering large-scale investigation conducted in western China, focusing explicitly on the multifaceted factors affecting the delayed medical treatment behavior of oral cancer patients. The findings underscore the imperative of implementing early intervention strategies tailored to mitigate these delays. Furthermore, this study emphasizes the pivotal role of robust social support systems and positive family dynamics in facilitating timely access to healthcare services for oral cancer patients, thereby potentially improving outcomes and survival rates.

Reported physical examination methods for screening of oral cancer and oral potentially malignant disorders: a systematic review

OBJECTIVE

This systematic review aimed to describe the method followed during physical examination and the anatomical structures of the head and neck assessed in screening for oral cancer and oral potentially malignant disorders (OPMDs).

STUDY DESIGN

An extensive literature search was carried out using MEDLINE/PubMed, EMBASE, Scopus, LILACS, Web of Science, Cochrane databases, and gray literature. The risk of bias was available in all papers included.

RESULTS

Of 9,688 records identified, 27 were included in this review, reporting data from 356,250 individuals screened and distributed across 11 countries. Most of these (n = 19) were based on 1 round of screening conducted by a dental professional or other health care workers. Most screening programs included visual inspection and palpation of the lips, oral cavity, and the most visible oropharyngeal sites, but the descriptions reported were imprecise. Additional inspection and palpation of the neck (submental, submandibular, cervical, and supraclavicular regions) to assess for the presence of swellings and any palpable neck nodes were also performed in 15 programs.

CONCLUSION

In conclusion, there was considerable heterogeneity in the method of physical examination in screening programs for oral cancer and OPMDs among the included studies.

Strategies adopted by oral physicians, oral and maxillofacial surgeons, and oral pathologists in patient education on oral cancer: A Nigerian study

BACKGROUND

The burden of oral cancer in Nigeria is increasing. Different studies have shown how public education on oral cancer have increased knowledge of oral cancer across populations, however, it is not known if these practices are adopted by oral physicians, oral and maxillofacial surgeons, and oral pathologists in Nigeria.

AIMS

To investigate the patient oral cancer education strategies adopted by oral physicians, oral and maxillofacial surgeons, and oral pathologists in Nigeria.

METHODS

This study adopted an analytical cross-sectional study design. This study surveyed practicing oral physicians, oral and maxillofacial surgeons, and oral pathologists in Nigeria. An e-questionnaire was used for this study. The data were analyzed using the SPSS Version 20 software, and a p-value of <.05 was used to determine the level of statistical significance.

RESULTS

The study's response rate was 46.6% (75/161). The 75 participants were from the six geopolitical zones in Nigeria responded to the survey questionnaire. Even though more than half (43/75, 57.3%) of the respondents have never received any training since their post-bachelor's degree qualification on the strategies that can be used in educating patients on oral cancer, majority (54/75, 72.0%) of them knew at least one education strategy; also, the most known (36/54, 66.7%) and utilized (33/54, 61.3%) strategy among those respondents who were aware of patient education strategy was health talk. Only 38.7% (29/75) of the respondents reported that health learning materials (posters, leaflets, fliers, and flipcharts) are available in their clinics, all of which were in insufficient quantities. Also, 93.3% (70/75) of the respondents opined that it is worthwhile that dental clinics/hospitals in Nigeria invest in the provision of oral cancer learning materials for patient use. Inferential statistical analysis did not reveal any significant relationship between the respondents' characteristics and their awareness and practice on patient oral cancer education strategies.

CONCLUSION

This study identified that many oral physicians, oral and maxillofacial surgeons, and oral pathologists in Nigeria lack the needed capacity to educate their patients on oral cancer. There is a need to strengthen their capacity by giving them training on patient oral cancer education strategies, and by providing them with good quality and enough teaching aids.

Social cognitive predictors of regular dental visits and mouth self-examination behaviors among the elderly population: An application of the health action process approach model

OBJECTIVE

The present study aimed to identify the social cognitive predictors of regular dental visits and mouth self-examination behaviors among the elderly population, based on the Health Action Process Approach (HAPA) model.

BACKGROUND

Regular dental visits and mouth self-examination can prevent oral and dental problems among the elders. Little information is available regarding the social cognitive predictive factors of these two behaviors.

MATERIALS AND METHODS

A cross-sectional study was conducted in 24 municipality centers in Tehran, Iran in 2021. The centers were selected randomly using a multi-stage cluster sampling method and 301 elderly attendants aged 60≥years participated in the study. Data collection was done using a researcher-made questionnaire including demographic characteristics and the HAPA model constructs for two target behaviors. Data were analyzed using the Smart-PLS version 3.3.9 via correlation and PLS-SEM analysis.

RESULTS

The mean age of the participants was 65.3±5.33 years and 79.7% were female. The SEM analysis showed that Action Self-Efficacy [b (SD) = 0.595 (0.065), P< 0.001] and Risk Perception [b (SD) = 0.218 (0.070), P< 0.002] were predictors of Intention for mouth self-examination but only Action Self-Efficacy [b (SD) = 0.651 (0.043), P< 0.001] was predictor of Intention for regular dental visits. Recovery Self-Efficacy and Planning directly contributed to the prediction of Mouth Self-Examination. The relationship between Maintenance Self-Efficacy and both behaviors is mediated by Planning. Also, the mediating role of Planning between Intention and target behaviors was confirmed.

CONCLUSION

Action self-efficacy predicted the intention for regular dental visits and mouth self-examination behaviors. The relationship between intention and both behaviors was mediated by Planning. Emphasis on improving Action Self-Efficacy and Intention formation will enhance the effectiveness of interventions aiming at promoting the oral health of the elderly population.

The role of community healthcare workers in head and neck cancer: A systematic scoping review of the literature

It is estimated that Head and Neck Cancer (HNC) will cause over 500,000 deaths worldwide by 2030. This is coupled with a shortage of trained healthcare professionals to manage HNC. An alternative cadre of workers - community healthcare workers (CHWs) - could be deployed to address this shortage. A systematic scoping review was conducted. Seven major databases were searched from inception to 30 June 2021. Studies were included from across the globe and excluded if the focus was not on HNC or CHWs. We identified 13 studies for inclusion. Twelve were based in India. CHWs were deployed in education and awareness raising initiatives, community screening, and ensuring compliance with treatment and follow-up. CHWs were compared to specialists for effectiveness in four studies with one reporting sensitivity of 94·3% and specificity 99·3% for HNC screening. This review highlights ways in which CHWs can be deployed to meet the growing demand for HNC services. The existing evidence suggests that CHWs can have potential roles in screening for HNC, therefore facilitating an earlier diagnosis. It is important this screening is implemented where there is appropriate capacity to manage HNC. Further research needs to be carried out to explore barriers and facilitators to these programmes.

Prevention of Oral Functional Decline

OBJECTIVES

The oral cavity functions in eating, speaking, socializing, and serving as a natural barrier to external pathogens. In the prevention of oral function decline in older people, oral health conditions should be maintained through public health actions.

METHODS

This article discusses public health actions to prevent oral functional decline through addressing three major issues among older people: tooth loss, hyposalivation, and oral cancer. Negative impacts of tooth loss, hyposalivation, and oral cancer will be described, followed by describing public health approaches to prevent these problems RESULTS: Tooth loss, commonly caused by dental caries and periodontal diseases, affects one's ability to eat, speak, and socialize freely. Prevention of tooth loss can be done in clinical settings, community settings, and through national policies. Saliva plays an important role in eating, swallowing, and protecting oral mucosa from pathogens. The major causes of dry mouth are polypharmacy and the use of anticholinergic medications among older people. Public health actions to promote collaboration between dentists and doctors in the adjustment of drug prescriptions are warranted. Oral cancer can affect oral function largely both from the disease itself and from cancer treatments due to the destruction of oral structures and salivary gland function. Tobacco use and alcohol consumption are major risk factors for oral cancer; they also contribute to various systemic diseases and cancers of other organs.

CONCLUSIONS

Public health policies and interventions using the common risk factor approaches to tackle tobacco and alcohol consumption should be encouraged. Rather than focusing on older people, the prevention of oral function decline should be planned through a life-course perspective.

Tobacco and cancer awareness program among school children in rural areas of Ratnagiri district of Maharashtra state in India

Background

Promoting awareness of tobacco and cancer in the community needs multipronged efforts. We performed a study to evaluate whether we could raise awareness about the harmful effects of tobacco, oral and esophageal cancer among school students by providing them health education. Moreover, we also compared the awareness level in students of age group 12 to ≤14 years with the age group >14 to 18 years.

Methods

We conducted an awareness program in the schools of Ratnagiri district of Maharashtra state. Students aged 12-18 years participated in this study. We provided health education to school students using a standard presentation; the presentation was rich in illustrations depicting the harmful effects of tobacco as well as oral and esophageal cancer's signs, symptoms, diagnosis, treatment, and preventive measures. After the health talk, a questionnaire was circulated. The questions were focused on tobacco, signs, and symptoms of the diseases along with early detection, prevention, and treatment of cancer.

Results

A total of 1354 students participated in the program. Totally, 567 (41.9%) students were from 6th to 8th grade (Group A, age group 12 to ≤14) and 787 (58.1%) students were from 9th to 12th standards (Group B, age group >14 to 18). Overall scores were high, ranging from 69% to 98%. Group A scored in the range of 69% to 95%, and Group B scored in the range 72%-98% The difference between the two groups was found to be statistically significant (P-value ≤0.05).

Conclusion

A standardized health education program helped to raise awareness about the harmful effects of tobacco and cancer amongst school children. Further studies are needed to evaluate whether educating school children has an impact on community understanding of the disease.

Clinical assessment for the detection of oral cavity cancer and potentially malignant disorders in apparently healthy adults

BACKGROUND

The early detection of oral cavity squamous cell carcinoma (OSCC) and oral potentially malignant disorders (OPMD), followed by appropriate treatment, may improve survival and reduce the risk for malignant transformation respectively. This is an update of a Cochrane Review first published in 2013.

OBJECTIVES

To estimate the diagnostic test accuracy of conventional oral examination, vital rinsing, light-based detection, mouth self-examination, remote screening, and biomarkers, used singly or in combination, for the early detection of OPMD or OSCC in apparently healthy adults.

SEARCH METHODS

Cochrane Oral Health's Information Specialist searched the following databases: Cochrane Oral Health's Trials Register (to 20 October 2020), MEDLINE Ovid (1946 to 20 October 2020), and Embase Ovid (1980 to 20 October 2020). The US National Institutes of Health Trials Registry (ClinicalTrials.gov) and the World Health Organization International Clinical Trials Registry Platform were searched for ongoing trials. No restrictions were placed on the language or date of publication when searching the electronic databases. We conducted citation searches, and screened reference lists of included studies for additional references.

SELECTION CRITERIA

We selected studies that reported the test accuracy of any of the aforementioned tests in detecting OPMD or OSCC during a screening procedure. Diagnosis of OPMD or OSCC was provided by specialist clinicians or pathologists, or alternatively through follow-up.

DATA COLLECTION AND ANALYSIS

Two review authors independently screened titles and abstracts for relevance. Eligibility, data extraction, and quality assessment were carried out by at least two authors independently and in duplicate. Studies were assessed for methodological quality using the Quality Assessment of Diagnostic Accuracy Studies 2 (QUADAS-2). We reported the sensitivity and specificity of the included studies. We provided judgement of the certainty of the evidence using a GRADE assessment.

MAIN RESULTS

We included 18 studies, recruiting 72,202 participants, published between 1986 and 2019. These studies evaluated the diagnostic test accuracy of conventional oral examination (10 studies, none new to this update), mouth self-examination (four studies, two new to this update), and remote screening (three studies, all new to this update). One randomised controlled trial of test accuracy directly evaluated conventional oral examination plus vital rinsing versus conventional oral examination alone. There were no eligible studies evaluating light-based detection or blood or salivary sample analysis (which tests for the presence of biomarkers for OPMD and OSCC). Only one study of conventional oral examination was judged as at overall low risk of bias and overall low concern regarding applicability. Given the clinical heterogeneity of the included studies in terms of the participants recruited, setting, prevalence of the target condition, the application of the index test and reference standard, and the flow and timing of the process, the data could not be pooled within the broader categories of index test. For conventional oral examination (10 studies, 25,568 participants), prevalence in the test accuracy sample ranged from 1% to 51%. For the seven studies with prevalence of 10% or lower, a prevalence more comparable to the general population, the sensitivity estimates were variable, and ranged from 0.50 (95% confidence interval (CI) 0.07 to 0.93) to 0.99 (95% CI 0.97 to 1.00); the specificity estimates were more consistent and ranged from 0.94 (95% CI 0.88 to 0.97) to 0.99 (95% CI 0.98 to 1.00). We judged the overall certainty of the evidence to be low, and downgraded for inconsistency and indirectness. Evidence for mouth self-examination and remote screening was more limited. We judged the overall certainty of the evidence for these index tests to be very low, and downgraded for imprecision, inconsistency, and indirectness. We judged the evidence for vital rinsing (toluidine blue) as an adjunct to conventional oral examination compared to conventional oral examination to be moderate, and downgraded for indirectness as the trial was undertaken in a high-risk population.

AUTHORS' CONCLUSIONS

There is a lack of high-certainty evidence to support the use of screening programmes for oral cavity cancer and OPMD in the general population. Frontline screeners such as general dentists, dental hygienists, other allied professionals, and community healthcare workers should remain vigilant for signs of OPMD and OSCC.

The 4P: Preventing Preneoplasia through Patients Partnership

The early diagnosis and management of oral potentially malignant disorders (OPMD) represent a unique opportunity to develop strategies that will prevent malignant transformation. Despite a high prevalence, awareness remains low, patient outcomes poor, and quality of life highly affected. How can patient advocacy groups (PAGs) bring more awareness to preneoplasia preceding oral cancers and help patients after the identification of a suspicious oral leukoplakia presented as white patches in the mouth? PAGs are today involved with awareness campaigns, lobbying, and education of both health care systems as well as the survivor and the newly diagnosed. PAGs are a link between the clinician and the patient, making sure that the medical terminology used is explained in layman language and that psychological support is available during and after treatment. This review outlines the actions that could be deployed by PAGs to successfully complete OPMD prevention challenge. The added value of researchers and patient representatives working together is the increased awareness of the problem. To know at which angle to best approach it for encouraging early diagnosis, improved education of disease signs and symptoms will condition effective prevention from the beginning.

Prognostic impact of socioeconomic status compared to overall stage for HPV-negative head and neck squamous cell carcinoma

OBJECTIVE

To estimate the relative prognostic ability of socioeconomic status (SES) compared to overall stage for HPV-negative head and neck squamous cell carcinoma (HNSCC) MATERIALS AND METHODS: Data were obtained from the Carolina Head and Neck Cancer Epidemiology Study (CHANCE). An empirical 4-category SES classification system was created. Cox proportional hazards models, survival gradients, Bayesian information criterion (BIC), and Harrell's C index were used to estimate the prognostic ability of SES compared to stage on overall survival (OS).

RESULTS

The sample consisted of 1229 patients with HPV-negative HNSCC. Patients with low SES had significantly increased risk of mortality at 5 years compared to patients with high SES (HR 3.11, 95% CI 2.07-4.67; p < 0.001), and the magnitude of effect was similar to overall stage (HR 3.01, 95% CI 2.35-3.86; p < 0.001 for stage IV versus I). Compared to overall stage, the SES classification system had a larger total survival gradient (35.8% vs. 29.1%), similar model fit (BIC statistic of 7412 and 7388, respectively), and similar model discriminatory ability (Harrell's C index of 0.61 and 0.64, respectively). The association between low SES and OS persisted after adjusting for age, sex, race, alcohol, smoking, overall stage, tumor site, and treatment in a multivariable model (HR 2.96, 95% CI 1.92-4.56; p < 0.001).

CONCLUSION

SES may have a similar prognostic ability to overall stage for patients with HPV-negative HNSCC. Future research is warranted to validate these findings and identify evidence-based interventions for addressing barriers to care for patients with HNSCC.

Validation of a Point-of-Care Optical Coherence Tomography Device with Machine Learning Algorithm for Detection of Oral Potentially Malignant and Malignant Lesions

Non-invasive strategies that can identify oral malignant and dysplastic oral potentially-malignant lesions (OPML) are necessary in cancer screening and long-term surveillance. Optical coherence tomography (OCT) can be a rapid, real time and non-invasive imaging method for frequent patient surveillance. Here, we report the validation of a portable, robust OCT device in 232 patients (lesions: 347) in different clinical settings. The device deployed with algorithm-based automated diagnosis, showed efficacy in delineation of oral benign and normal (n = 151), OPML (n = 121), and malignant lesions (n = 75) in community and tertiary care settings. This study showed that OCT images analyzed by automated image processing algorithm could distinguish the dysplastic-OPML and malignant lesions with a sensitivity of 95% and 93%, respectively. Furthermore, we explored the ability of multiple (n = 14) artificial neural network (ANN) based feature extraction techniques for delineation high grade-OPML (moderate/severe dysplasia). The support vector machine (SVM) model built over ANN, delineated high-grade dysplasia with sensitivity of 83%, which in turn, can be employed to triage patients for tertiary care. The study provides evidence towards the utility of the robust and low-cost OCT instrument as a point-of-care device in resource-constrained settings and the potential clinical application of device in screening and surveillance of oral cancer.

Relationship between oral cancer stage and elapsed time from the onset of signs and symptoms to diagnosis and treatment

BACKGROUND

Oral cancer includes a variety of diagnoses of malignancies that manifest in the oral tissues. Prognosis and treatment depend on the site of involvement, the time of diagnosis, and the stage of the tumor. Early diagnosis of oral mucosal lesions facilitates the early detection of cancer, which is a key step for treatment. The purpose of this study was to investigate the relationship between delayed referral of patients with oral cancer and disease progression at the time of diagnosis.

MATERIALS AND METHODS

In this cross-sectional study, data were collected from 108 patients with a definitive diagnosis of oral cancer by a standardized questionnaire. Data were analyzed by descriptive statistics, including mean, standard deviation, frequency, frequency percentage, and inferential statistics, including logistic regression analysis. P<0.05 was considered to be statistically significant.

RESULTS

The mean time of referral to a therapist was 17.73 ± 22.80 weeks, with 53 (49.1%) patients having a delay of more than 10 weeks. Age, education level, smoking, disease stage, N class, M class, and type of cancer were not significantly associated with the incidence of delay (P>0.05). Patients whose first signs were significant bleeding and/or unrecovered ulceration showed a significant reduction in the delay time (OR = 0.024 and P = 0.038).

CONCLUSION

There was no significant relationship between the disease progression in oral cancer and the time elapsed from the onset of symptoms to diagnosis and treatment. Hence, it seems necessary to take appropriate measures to enhance public awareness of oral cancer and its symptoms.

The Effect of an Educational Intervention Based on PRECEDE Model on Oral Cancer Prevention Behaviors in Hookah Users

Educational intervention about oral cancer prevention is essential for all people, especially in hookah users. The aim of this study is investigating the effect of an educational intervention based on PRECEDE model on oral cancer prevention in hookah users living in Fasa, Fars Province, Iran, in 2017-2018. In this quasi-experimental study, 360 hookah users were selected and divided into experimental and control groups (180 subjects for each group). Educational intervention was performed for experimental group in 12 sessions. A questionnaire consisting of items evaluating demographic information and PRECEDE model constructs (knowledge, attitude, self-efficacy, enabling factors, and reinforcing factors) was used to measure oral cancer prevention behaviors and nicotine dependency of subjects before and 6 months after intervention. Obtained data were analyzed by SPSS-22 software through paired t test, independent t test, and chi-square test at significance level of P < 0.05. Six months after intervention, experimental group showed significant increase in knowledge, attitude, self-efficacy, enabling factors, reinforcing factors, oral cancer prevention behaviors, and reduction of nicotine dependency compared with control group. This study showed the efficiency of educational intervention based on PRECEDE model in adoption of oral cancer prevention behaviors and reduction of nicotine dependency of hookah users 6 months after intervention.

Effectiveness of mouth self-examination for screening of oral premalignant/malignant diseases in tribal population of Dehradun district

Background:

Mouth self-examination (MSE) is shown as a speedy, economical, and effortless method of oral cancer detection. As previous studies were conducted in population with high literacy, the current survey was performed to explore the usefulness of MSE for finding the oral cancerous precancerous lesions in indigenous low literate population of Dehradun district.

Materials and Methods:

It is a cross-sectional survey which was done on the Buksa tribal communities in Dehradun district, India. Out of seven tehsils in the district, two were randomly selected, from which two villages were selected. Individuals belonging to Buksa tribe above the age of 18 years were gathered in commonplace. A total of 539 people who gave their consent were enrolled for study. Using a questionnaire, information regarding sociodemographic details, history of risk factors, and practice of MSE was obtained by interview method, followed by recording oral findings by a single expert. Later, performance of MSE was taught to the participants and they were asked to record the same. Descriptive analysis and Chi-square test were applied wherever applicable and significance level was kept at below 0.05.

Results:

It was observed that out of 539 participants, 220 (40.8%) practiced MSE and 319 (59.2%) have never practiced MSE. Further analysis showed that a total of 39% males and 42.7% females had MSE habits and this difference was not statistically significant (P > 0.05). In totality, the prevalence of oral lesions identified by health worker was 213 (39.5%), whereas MSE showed only prevalence rate of 69 (12.8%). MSE had low sensitivity (24.6%), whereas high specificity (87.4%) for all the lesions and most sensitive in detecting ulcers (72.7%), and highest specificity in identifying red lesions (99.2%).

Conclusion:

Even though the sensitivity of MSE for detecting oral premalignant/malignant lesions was low, specificity was very high. Frequent efforts to educate and encourage public on MSE may enhance efficacy and compliance.

A Snapshot of Knowledge about Oral Cancer in Italy: A 505 Person Survey

Objectives: Patients' knowledge about oral squamous cell carcinoma (OSCC) plays an important role in primary prevention, early diagnosis, and prognosis and survival rate. The aim of this study was to assess OSCC awareness attitudes among general population in order to provide information for educational interventions. Methods: A survey delivered as a web-based questionnaire was submitted to 505 subjects (aged from 18 to 76 years) in Italy, and the answers collected were statistically analyzed. Information was collected about existence, incidence, features of lesions, risk factors of oral cancer, and self-inspection habits, together with details about professional reference figures and preventive behaviors. Results: Chi-square tests of independence with adjusted standardized residuals highlighted correlations between population features (age, gender, educational attainment, provenance, medical relationship, or previous diagnoses of oral cancer in family) and knowledge about oral cancer. Conclusions: Knowledge about OSCC among the Italian population is limited, and it might be advisable to implement nudging and sensitive customized campaigns in order to promote awareness and therefore improve the prognosis of this disease.

Mouth Self-Examination for Prevention and Control of Oral Cavity Cancer

Oral cavity cancer is one of the most common preventable cancers in the world. The burden of the disease is high in South Asia. Therefore, public health strategies such as creating awareness and disease screening should be advocated for its prevention and early detection. Mouth self-examination serves both the purposes. It is easy to perform, non-invasive, and low-cost methods. It not only helps in the early detection of suspicious oral lesions but also helps people to quit their high-risk behaviors such as consumption of tobacco and alcohol.

Effectiveness of a health belief model intervention using a lay health advisor strategy on mouth self-examination and cancer screening in remote aboriginal communities: A randomized controlled trial

OBJECTIVE

Oral cancers caused by chewing betel nuts have a poor prognosis. Using a lay health advisor (LHA) can increase access to health care among underprivileged populations. This study evaluated a health belief model (HBM) intervention using LHAs for oral cancer screening (OCS) and mouth self-examination (MSE) in remote aboriginal communities.

METHODS

The participants were randomly assigned to intervention (IG; n = 171) and control groups (CG; n = 176). In the IG, participants received a three-chapter one-on-one teaching course from LHAs, whereas those in the CG received only a leaflet.

RESULTS

The IG participants were 2.04 times more likely to conduct a monthly MSE than those in the CG (95% confidence interval: 1.31-3.17) and showed significantly higher self-efficacy levels toward OSC and MSE (β = 0.53 and 0.44, effect size = 0.33 and 0.25, respectively) and a lower barrier level for OSC (β = -1.81, effect size = -0.24).

CONCLUSION

The LHA intervention had a significantly positive effect on MSE, strengthening self-efficacy and reducing barriers to OCS among aboriginal populations.

PRACTICE IMPLICATIONS

The effectiveness of the clinical treatment of underprivileged group can be improved through early diagnosis, which can be achieved using LHAs to reduce barriers to OSC.

Assessment of mother's ability in caries diagnosis, utilizing the smartphone photographic method

BACKGROUND

Smartphone is proved to be reliable in teledentistry model. The aim of the study was to assess the mother's ability in caries diagnosis, utilizing the smartphone-based photographic method.

HYPOTHESIS

Mothers have the ability for caries diagnosis utilizing the smartphone photographic method.

METHODS

A cohort of 100 mothers was given health education regarding dental caries diagnosis. Then, their children from the preschools were screened by the dentist for dental caries using visual examination, followed by clicking intraoral photographs using Motorola 3G phone. The photographs were sent through WhatsApp to respective mothers, and they were asked to diagnose their child's dental status. Accuracy and reliability measures of mother's diagnosis were estimated by calculating the sensitivity, specificity, predictive values, and kappa value.

RESULTS

The calculated value for sensitivity was 88.3%, specificity was 98.3%, positive predictive value was 92%, negative predictive value was 97%, and accuracy was 96%. There was a strong agreement between mother's and dentist's diagnosis (kappa value of 0.87).

CONCLUSION

Following the dental health education, it can be concluded that mothers are in a better position to diagnose their child's dental status through smartphone-based photographs.

Mouth self-examination as a screening tool for oral potentially malignant disorders among a high-risk Indigenous population

OBJECTIVES

To evaluate the efficacy of mouth self-examination (MSE) as a self-screening tool for detection of oral mucosal lesions among an Indigenous population in Malaysia at high risk for oral premalignant and malignant disorders.

METHODS

Two villages were selected as the sampling frame based on prevalence of tobacco and betel quid chewing habit. Respondents were asked to check their mouth for presence of lesion or abnormalities. Education on oral cancer, including MSE, was provided. Subsequently, respondents were asked to perform MSE. Finally, a clinical oral examination (COE) was done by a specialist and the presence of oral mucosal lesions was recorded.

RESULTS

Almost 64.5 percent of respondents exhibited high levels of difficulty and low mucosal visualization and retracting ability, whereas 3.0 percent demonstrated high attention level when performing MSE. Prevalence of oral mucosal lesions was 59.0 percent, whereas the prevalence of oral potentially malignant disorders (OPMDs) was 9.0 percent. Detection of oral lesions by respondents using MSE was lower than detection by the gold standard. Sensitivity and specificity of MSE for detection of all types of lesions were 8.6 and 95.0 percent respectively. When analyzing each lesion type separately, MSE was found to be most sensitive in detection of swellings (10.0 percent), and most specific in identifying white lesions (97.8 percent). For detection of OPMDs, although specificity was high (98.9 percent), sensitivity (0 percent), and +LR (0) was poor.

CONCLUSION

MSE is not an effective self-screening tool for early detection of potentially malignant lesions for this population.

Oral Cancer Early Detection: What Do Patients Need To Know?

The purpose of the present study was to examine the educational needs of patients regarding early detection of oral cancer. A total of 790 patients without cancer were interviewed and shown a set of validated clinical images of various oral lesions including early oral cancer. Participants were asked about their perception of cancer and the action that they would take if they notice a similar lesion. Lower risk lesions (e.g., lumps) were more likely to be perceived as cancer (52.4%), while higher risk lesions (e.g., red patches) were least likely to be perceived as cancer (8.8%). The perceived appearance of the lesions was correlated with patients' perceived need for medical advice. Higher risk lesions were less likely to make patients feel the need to seek professional advice. High-risk patients were less aware about oral cancer appearance and were less likely to take action if they notice an oral lesion. Patients are not aware of the various presentations of early oral cancers, especially higher risk lesions. Patients need to know more about the clinical appearance of early oral cancer. The use of representative clinical images of early oral cancer and educational videos on self-inspection of oral mucosa is important.

Short message service prompted mouth self-examination in oral cancer patients as an alternative to frequent hospital-based surveillance

Introduction:

Oral squamous cell carcinoma (OSCC) are amongst commonest cancer in the Indian sub-continent. After treatment, these patients require frequent followup to look for recurrences/second primary. Mouth Self Examination (MSE) has a great potential in all levels of prevention of oral cancer. However, the compliance to self-examination has been reported as poor. Mobile phone is a cheap and effective way to reach out to people. Short Message Service (SMS) is extremely popular can be a very effective motivational and interactive tool in health care setting.

Methodology:

We aimed to identify in adequately treated OSCC patients, the influence of health provider initiated SMS on the compliance to the MSE and to establish the efficacy of MSE by comparing patients’ MSE interpretation via replies to the SMS with that of the experts’ opinion on clinical examination status during follow up.

Conclusion:

We conclude that MSE can be very useful in adequately treated OSCC patients for evaluating disease status. All treated OSCC patients must be adequately educated for MSE as an integral part of treatment & follow-up protocol by the health provider facility. Health provider generated SMS reminders do improve motivation and compliance towards MSE but don’t seem to reduce dropouts in follow up for large and diverse population like that in India.

Novel Program of Using Village Health Workers in Early Detection and Awareness of Head and Neck Cancers: Audit of a Community Screening Program

Head and neck cancers together (oral cavity, pharynx and larynx) are sixth commonest worldwide and are the commonest cancers in developing countries. The Cancer Project was started in Kheda/Anand, Gujarat, a harvest land of tobacco. The objective of this programme was to indoctrinate the most vulnerable and the least tended upon; the basics of head and neck cancers via the medium of their own kins. Voluntary village health workers were educated and trained to pick up the early signs of head and neck cancers. Oral self examination was taught to them and they went to peripheral villages to screen the population. They would refer suspicious cases to tertiary healthcare centre. The population was enlightened upon the basics of preventable measures, treatment options and rehabilitation facilities for head and neck cancer patients. Knowledge, attitude and practice analysis was done in the population which showed widespread disbelief and false practices. A population of 26,10,432 was surveyed in 1862 villages of which 10,522 (1.1%) individuals successfully quit the habit. The minimally educated workers referred 3309 suspicious individuals to higher centre of which 1890 (57.11%) tested positive for cancer. A lot of resource is put in research and development of rapid diagnosis and complete cure; however such a minimally costing program may help the most in primordial, primary and secondary level of prevention. Such programs should be advocated on the global platform on lines of Breast Self Examination.

Screening and early detection of oral cancer: current controversies

Some evidence suggests that the early detection of oral cancer (OC) during surveillance might improve survival rates. In addition to this, interventions aimed at enhancing public awareness and knowledge of signs, symptoms and risk factors of OC are thought to decrease the burden of disease. Nevertheless, there is much controversy with regard to the cost-effectiveness of population-based strategies for OC screening. Here, we present and briefly discuss timely findings that have put under scrutiny the applicability of approaches targeted at the early identification of patients with OC.

Mobile health application for remote oral cancer surveillance

BACKGROUND

To determine the effectiveness of a mobile phone-based remote oral cancer surveillance program (Oncogrid) connecting primary care dental practitioners and frontline health care workers (FHW) with oral cancer specialists.

METHODS

The study population (N = 3,440) included a targeted cohort (n = 2,000) and an opportunistic cohort (n = 1,440) screened by FHW and dental professionals, respectively. The authors compared the screening efficacy in both groups, with specialist diagnosis considered the reference standard. The outcomes measured were lesion detection and capture of interpretable images of the oral cavity.

RESULTS

In the targeted cohort, among 51 of 81 (61%) interpretable images, 23 of 51 (45%) of the lesions were confirmed by specialists, while the opportunistic cohort showed 100% concordance with the specialists (106 of 106). Sixty-two of 129 (48%) of the recommended patients underwent biopsy; 1 of 23 (4%) were in the targeted cohort, and 61 of 106 (57%) were in the opportunistic cohort. Ninety percent of the lesions were confirmed to be malignant or potentially malignant.

CONCLUSIONS

The mobile health-based approach adopted in this study aided remote early detection of oral cancer by primary care dental practitioners in a resource-constrained setting. Further optimization of this program is required to adopt the system for FHW. Evaluation of its efficacy in a larger population is also warranted.

PRACTICAL IMPLICATIONS

The increased efficiency of early detection by dentists, when assisted by a remote mobile health-based approach, is a step toward a more effective oral cancer screening program.

Early detection of oral cancers: current status and future prospects

PURPOSE OF REVIEW

This article reviews the current literature and summarizes the latest developments in screening and early detection of oral cancers and looks at the future possibilities.

RECENT FINDINGS

Oral cancer is the best model for screening and prevention. The screening for oral cancer can be population based, opportunistic, or targeted. A long-term 15-year follow-up data of a randomized controlled study from a developing country setting indicated a sustained reduction in oral cancer mortality in high-risk individuals. Visual oral examination remains the mainstay in the screening. Several adjunctive techniques have been described to aid in the clinical examination of these lesions. A Cochrane review revealed that there is no evidence to recommend these adjuncts in clinically visible lesions. Salivary biomarkers seem to be promising as a tool for screening in the future. A Targeted Evidence Update for the US Preventive Services Task Force found no evidence on screening either in the general or selected high-risk population for oral cancer in the United States or on benefit of any adjunctive device affecting the performance of the screening examination.

SUMMARY

Current evidence shows that community based screening has a value in reducing the oral cancer mortality in high-risk group of population. But this evidence may not be universally applicable.

Assessment of serum copper, iron and immune complexes in potentially malignant disorders and oral cancer

Potentially malignant disorders (PMDs) of oral cavity and oral cancer remain a cause of serious concern despite intensive research and development. Diet and immunity have been identified to play a crucial role as modifying factors in these diseases. Our study intended to explore this relationship by estimating and comparing the serum levels of copper, iron and circulating immune complexes (CICs) in patients diagnosed with PMDs and oral cancer and normal healthy individuals. In this study, 40 histopathologically diagnosed cases of PMDs and oral cancer were included along with 30 healthy controls and 5 ml of venous blood was drawn using venipuncture. Serum estimation of copper, iron and CIC then followed using the colorimetric and spectrophotometric methods. The data obtained was subjected to statistical analysis using one way ANOVA and Pearson's Product-Moment Correlation Test. The mean serum copper level was measured as 138.98 ± 10.13µg/100ml in the PMD group and 141.99 ± 21.44 µg/100ml in the oral cancer as compared to 105.5 + 18.81µ/100ml in the controls. The mean serum CIC levels was highest in the oral cancer (9.65 ± 0.16OD470) followed by the PMD group (0.18 + 0.21 OD470) and least in the control group (0.048 ± 0.02OD470). Whereas, the serum levels of iron showed a significant decrease in the PMD group (110.9 ± 10.54 µg/100ml) and the oral cancer group (114.29 ± 25.83 µg/100ml) as compared with the control group (136.85 ± 14.48 µg/100ml). There was no positive correlation obtained between the three groups with respect to the chosen parameters indicating that the variables were independent of each other. It can be thus be ascertained that trace elements like copper and iron as well as humoral responses (CICs) have a close relationship with PMDs and oral cancers.

Access to information on how to avoid oral health problems among elderly persons registered with the Family Health Strategy

Objectives : To identify the level of access to information regarding how to prevent oral health problems among the elderly, and verify if such levels were higher among members of households registered with the Family Health Strategy Program. Methods : An analytic cross-sectional study was conducted of a probabilistic complex sample of elderly (65-74 years old) members of the population of a large city. The level of access was estimated with adjustment for the design effect, as well as the magnitudes of association. Descriptive, bivariate and logistic regression (OR/CI95%) analysis was performed. Variables related to personal determinants, health services, health-related behavior and health outcomes were considered. Results : Of the 490 participants, 53.4% reported they had access to information about how to prevent oral health problems. This access was higher among elderly persons living in a household registered with the Family Health Strategy Program (2.04/1.14-3.67), and who had at least five years of schooling (2.53/1.67-3.83), regularly used dental services (1.84/1.07-3.17), did not smoke either now or in the past (1.79/1.13-2.82), did not suffer from chronic diseases (2.14/1.34-3.42) and had not suffered social impacts because of their oral health conditions (1.77/1.08-2.91). Conclusion : Most of the elderly persons had access to information about how to prevent oral health problems, with such access being greater among those registered with the Family Health Strategy Program.

Sneak Peek into Tobacco Habits and Associated Insidious Oral Lesions in an Odisha Sample Population

BACKGROUND

Tobacco use in various forms, including with Areca nut, causes several potentially malignant disorders. Many lesions may transform into oral squamous cell carcinoma. Although patients may be aware of the hazards of tobacco habits, the lesions by themselves are insidious in nature resulting in failure of patients to present to general dentists/specialists at early stages. Our aim was to study the types of habits prevalent in the region of Rourkela in Orissa and to assess the insidious nature of the lesions associated with these habits. Not many studies have been done from this part of India.

MATERIALS AND METHODS

A camp was conducted for habitual users of tobacco and its products, Areca nut and other mixed habit users. A thorough history was taken of the type, duration and frequency of habits, symptoms of patients along with clinical examination by a single examiner. The data was entered in detail into an excel sheet and analysed.

RESULTS

54.7% had lesions and 60.9 % of them were asymptomatic and rest had mild burning sensation while eating. There was a very low awareness of the presence of lesions among the patients.

CONCLUSIONS

There is a need to spread the awareness of the ill effects of the tobacco and other associated habits far and wide and more importantly educate the general public on the appearance of associated lesions as these are almost always insidious in nature. The patients can self-examine, detect lesions early when present and approach the dentist at the earliest opportunity.

Expression levels of B7-H3 and TLT-2 in human oral squamous cell carcinoma

The aim of the present study was to investigate the role of immune regulatory molecules B7-H3 [also known as cluster of differentiation 276] and triggering receptor expressed on myeloid cell-like transcript-2 (TLT-2) in patients with oral squamous cell carcinoma (OSCC). Human OSCC samples were obtained from 76 patients (female, 32; male, 44; age range, 23-81 years; median age, 50.9 years) that underwent resection for OSCC at Peking University Shenzhen Hospital (Shenzhen, China) between 2007 and 2010. In addition, control oral mucosal samples were obtained from 76 healthy individuals (female, 36; male, 40; age range, 21-62 years; median age, 45.3 years) during wisdom tooth extraction. Protein and gene expression levels of B7-H3 and TLT-2 were determined by immunohistochemical analysis and reverse transcription-polymerase chain reaction (RT-PCR). In the healthy oral mucosa samples, B7-H3 expression was identified to be weak, while the expression of TLT-2 was only detected sporadically in the cell membrane and cytoplasm. By contrast, the two regulatory molecules were widely expressed in the aforementioned localizations in human OSCC specimens upon immunohistochemical examination. Furthermore, quantitative RT-PCR confirmed the presence of significantly higher B7-H3 and TLT-2 expression levels in OSCC specimens compared with the oral mucosa of healthy individuals. The significantly higher expression levels of B7-H3 and TLT-2 in human OSCC specimens may indicate an inhibitory role of these molecules in the antitumoral immune response. To investigate interactions between these two molecules and individual antitumoral immune response in OSCC patients, prospective clinical studies with an adequate sample size are required.

Cancer Screening: Should Cancer Screening be Essential Component of Primary Health Care in Developing Countries?

Background:

Cancer is a fatal disease and is on the rise across the globe. In India, breast, cervix and the oral cavity are the leading cancer sites, but, unfortunately, in-spite of availability of screening tools, there is no organized cancer screening program in India. The main objective of this study was to review the performance of various cancer screening modalities in a resource poor setting.

Methods:

MEDLINE and web of science electronic database was searched from January 1990 to December 2013, using keywords such as “breast cancer, cervical cancer, oral cancer and their corresponding mesh terms were also used in combination with Boolean operators OR, AND.” Two authors independently selected studies published in English and conducted in India. A total of 16 studies was found relevant and eligible for the review. The data on sensitivity and specificity of various screening tool was extracted and analyzed.

Results:

Most of the reported screening trails in India are on cervical cancer and few on breast and oral cancer screening. The pooled estimates of sensitivity and specificity of cervical cancer screening test such as visual inspection with acetic acid, magnified visual inspection with acetic acid, visual inspection with Lugol's iodine, cytology (Papanicolaou smear) and human papillomavirus deoxyribonucleic acid was found to be 68.76% and 84.02%, 63.27% and 85.43%, 81.86% and 87.03%, 63.25% and 93.17% and 75.04% and 91.66%, respectively. Sensitivity and specificity of clinical breast examination was found to be 94.30% and 94.30%, respectively. Oral cancer screening through visual inspection by trained health care worker was found to have 87.90% sensitivity and 92.05% specificity.

Conclusions:

Our study highlights the availability and success of visual screening tools in early detection and mortality reduction of major neoplasia in resource-poor health care settings and recommends implementation of oral and cervical cancer screening as part of assured primary health care package in developing countries.

Greater access to information on how to prevent oral cancer among elderly using primary health care

Educative actions are an important component of health promotion in Brazil's primary healthcare program, the Family Health Strategy (FHS). The efficacy of these actions is evidenced by compliance with healthy behaviors and in the reduction of rates of mortality and morbidity. The objective of this study was to identify whether access to information regarding the prevention of oral cancer is greater among elders whose residences are registered with the FHS. SPSS® was utilized to obtain estimates that were corrected for sample design, considering the magnitude of the associations between access to such information with personal determinants, the use and cost of healthcare, health-related behaviors and health outcomes. 58.9% of the 492 participating elders reported having access to such information. We verified that there was a greater chance for access among residents of houses registered by the FHS; those with greater per capita income (2.01/1.183.43); non-smokers (2.00/1.16-3.46); those that realized oral self-examination (6.35/3.46-11.64); and those that did not perceive discomfort in the mouth, head or neck (2.06/1.02-4.17). Access was greater among residents of homes registered by the FHS. Personal determinants of health, health-related behaviors and health outcomes are influenced or influence access to information regarding the prevention and management of oral diseases.

Mouth self-examination in a population at risk of oral cancer

BACKGOUND

Cancer of the oral cavity is a public health problem and many cases are not diagnosed until the disease has reached an advanced stage. The aim of this study was to initiate an educational programme in self-examination for patients at risk from oral cancer.

METHODS

This quasi-experimental study set out to initiate an educational programme in self-examination for patients at risk from oral cancer, assessing the outcomes after three months. In individual 15-minute face-to-face sessions, patients were given information and training in oral cancer risk factors and then verbal instructions as how to carry out oral self-examination. Three months later, patients were interviewed by telephone and asked if they had carried out self-examination independently at home. The programme was evaluated by means of a health belief model questionnaire on perceived susceptibility (3 items), severity (8 items), benefits (4 items), barriers (8 items) and efficacy (6 items).

RESULTS

Eighty-six patients (37 females [43.1%] and 49 males [56.9%]) with a mean age of 58.60±10.7 completed the oral self-examination programme. Logistic regression analysis indicated that patients who felt themselves subject to susceptibility (OR: 0.03 95% CI: 0.0-0.86; p<0.04), severity (OR 0.23 95% 0.08-0.68; p<0.008) and benefits (OR 0.11 95% 0.02-0.63; p<0.013) were more likely to perform self-examination.

CONCLUSIONS

Training programmes in oral self-examination are needed to decrease morbidity and mortality from oral cancer.

Prevalence of oral cancer self-examination among elderly people treated under Brazil's Unified Health System: household health survey

The aim of this study was to examine the prevalence of oral cancer self-examinationamong the elderly and confirm whether prevalence was higher among users of the dental services provided by Brazil's Unified Health System (SUS, acronym in Portuguese). A transversal study of elderly people aged between 65 and 74 years living in a large-sized Brazilian municipality was conducted using simple random sampling. Logistic regression was conducted and results were corrected for sample design and unequal weighting using the SPSS(r) software. The study assessed 740 individuals. A total of 492 met the inclusion criteria, of which 101 (22.4%) reported having performed an oral cancer self-examination. Prevalence was higher among users of the dental services provided by the SUS, higher-income individuals, people with higher levels of education, individuals that used a removable dental prosthesis, and people who had not experienced discomfort attributed to oral condition, and lower among people who sought regular and periodic dental treatment and individuals who did not have a drinking habit. This type of self-care should be encouraged by public health policies which respond to the needs of the elderly, with emphasis on users of private and philanthropic services, and other services outside the public health network.

Need for Primary Care Providers to Carry out Annual Oral Cancer Examinations

Oral and/or oral pharyngeal cancer (OPC) has an approximately 53% five-year survival rate in the United States. It is postulated that the rationale for this low survival rate is due to delayed diagnosis and treatment of OPC at its later stages. Recently the United States Preventive Services Task Force found insufficient evidence to recommend for or against oral cancer examination (OCE) by primary care providers (PCP), i.e., medical providers who are not dental providers or otolaryngologists. The purpose of the paper is to provide a logical discussion of the varied research on OCE, while presenting the evidence for annual opportunistic OCE in the primary care setting. Trained PCPs in OCE have the likelihood of detecting OPC at an early non symptomatic stage, which could result in lower treatment morbidity and mortality due to the disease. This review of the OCE research summarizes evidence that points to a logical benefit of OCE. Opportunistic annual non symptomatic OCE by PCPs who have been trained in OCE techniques may result in consistent early detection of OPC, particularly for patients at high risk for developing the disease.

Tobacco-related knowledge, attitudes, and practices among urban low socioeconomic women in Mumbai, India

CONTEXT

Tobacco use is an important health issue globally. It is responsible for a large number of diseases and deaths in India. Female tobacco users have additional health risks.

AIMS

The aim was to assess changes in pre and post-intervention tobacco-related knowledge, attitudes, and practices among women from urban low socioeconomic strata, after three rounds of interventions.

SUBJECTS AND METHODS

A structured questionnaire was used to interview women living in low socioeconomic housing clusters in Mumbai, regarding their tobacco consumption, attitudes, and practices, by Medical Social Workers. These data were entered into IBM SPSS Statistics, version 20 and analysed. Interventions for tobacco cessation were provided 3 times over a span of 9 months, comprising of health education and counseling. Post-intervention questionnaire was introduced at 12 months.

RESULTS

There was statistically significant improvement in the knowledge of women, following the interventions, with particular reference to poor oral hygiene and tobacco use being main cause of oral cancer (P = 0.007), knowledge of ill effects of second hand smoke (P = 0.0001), knowledge about possibility of early detection of oral cancer (P = 0.0001), perception of pictorial and written warnings on tobacco products (P = 0.0001), and availability of help for quitting tobacco (P = 0.024).

CONCLUSION

The prevalence of smokeless tobacco use is very high among urban women from lower socioeconomic strata. Therefore, tobacco awareness programs and tobacco cessation services tailor made for this group of women must be planned and implemented.

Dentists' perception of the role they play in early detection of oral cancer

BACKGROUND

Dentists are typically the first professionals who are approached to treat ailments within the oral cavity. Therefore they should be well-equipped in detecting suspicious lesions during routine clinical practice. This study determined the levels of knowledge on early signs and risk factors associated with oral cancer and identified which factors influenced dentist participation in prevention and early detection of oral cancer.

MATERIALS AND METHODS

A survey on dentists' knowledge and their practices in prevention and early detection of oral cancer was conducted using a 26-item self-administered questionnaire.

RESULTS AND CONCLUSIONS

A response rate of 41.7% was achieved. The level of knowledge on early signs and risk habits associated with oral cancer was high and the majority reported to have conducted opportunistic screening and advised patients on risk habit cessation. Factors that influenced the dentist in practising prevention and early detection of oral cancer were continuous education on oral cancer, age, nature of practice and recent graduation. Notably, dentists were receptive to further training in the area of oral cancer detection and cessation of risk habits. Taken together, the study demonstrated that the dental clinic is a good avenue to conduct programs on opportunistic screening, and continuous education in these areas is necessary to adequately equip dentists in running these programs. Further, this study also highlighted knowledge deficits and practice shortcomings which will help in planning and developing programs that further encourage better participation of dentists in prevention and early detection of oral cancer.

Mouth cancer awareness and beliefs among dental patients

OBJECTIVES

The aim of the present study was to assess the levels of awareness, knowledge about signs and risk factors of mouth (oral) cancer, and attitudes towards early diagnosis and treatment among dental outpatients.

MATERIAL AND METHODS

A total of 1,200 adult outpatients attending dental clinics at the University of Jordan Hospital for dental examination and treatment were randomly selected to participate in the study. An 18-item pretested close-ended questionnaire was used for the study. Descriptive statistics were generated and chi-square tests, t-tests, one-way analysis of variance (ANOVA), and Spearman's rho test were used to examine differences between groups.

RESULTS

Only 45.6% of the subjects had heard about oral cancer. Some 66.9% and 33.8%, respectively, were able to correctly identify tobacco and alcohol as risk factors. Some 24.1% had no knowledge about any signs of oral cancer. Male subjects, smokers, alcohol drinkers, older participants (>40 years), and participants with less than a university education were significantly less aware, and had much less knowledge, of the signs and risk factors of oral cancer (P<0.05).

CONCLUSION

Awareness about oral cancer among Jordanian dental outpatients is low. These dental patients, especially those in high-risk groups for mouth cancer and those of lower socio-economic status (SES), are less well informed about the signs and risk factors of oral cancer. Interventions to improve public knowledge about oral cancer and attitudes towards early diagnosis and treatment are urgently indicated.

The development and validation of oral cancer staging using administrative health data

BACKGROUND

Oral cancer is a major global health problem. The complexity of histological prognosticators in oral cancer makes it difficult to compare the benefits of different treatment regimens. The Taiwanese National Health database provides an opportunity to assess correlations between outcome and treatment protocols and to compare the effects of different treatment regimens. However, the absence of indices of disease severity is a critical problem. The aim of this study was to ascertain how accurately we could assess the severity of oral cancer at the time of initial diagnosis on the basis of variables in a national database.

METHODS

In the cancer registry database of a medical center in Taiwan, we identified 1067 histologically confirmed cases of oral cancer (ICD9 codes 140, 141 and 143-145) that had been first diagnosed and subjected to initial treatment in this hospital. The clinical staging status was considered as the gold standard and we used concordance (C)-statistics to assess the model's predictive performance. We added the predictors of treatment modality, cancer subsite, and age group to our models.

RESULTS

Our final overall model included treatment regimen, site, age, and two interaction terms; namely, interactions between treatment regimen and age and those between treatment regimen, site, and age. In this model, the C-statistics were 0.82-0.84 in male subjects and 0.96-0.99 in female subjects. Of the models stratified by age, the model that considered treatment regimen and site had the highest C-statistics for the interaction term, this value being greater than 0.80 in male subjects and 0.9 in female subjects.

CONCLUSION

In this study, we found that adjusting for sex, age at first diagnosis, oral cancer subsite, and therapy regimen provided the best indicator of severity of oral cancer. Our findings provide a method for assessing cancer severity when information about staging is not available from a national health-related database.

Clinical assessment to screen for the detection of oral cavity cancer and potentially malignant disorders in apparently healthy adults

BACKGROUND

The early detection and excision of potentially malignant disorders (PMD) of the lip and oral cavity that require intervention may reduce malignant transformations (though will not totally eliminate malignancy occurring), or if malignancy is detected during surveillance, there is some evidence that appropriate treatment may improve survival rates.

OBJECTIVES

To estimate the diagnostic accuracy of conventional oral examination (COE), vital rinsing, light-based detection, biomarkers and mouth self examination (MSE), used singly or in combination, for the early detection of PMD or cancer of the lip and oral cavity in apparently healthy adults.

SEARCH METHODS

We searched MEDLINE (OVID) (1946 to April 2013) and four other electronic databases (the Cochrane Diagnostic Test Accuracy Studies Register, the Cochrane Oral Health Group's Trials Register, EMBASE (OVID), and MEDION) from inception to April 2013. The electronic databases were searched on 30 April 2013. There were no restrictions on language in the searches of the electronic databases. We conducted citation searches, and screened reference lists of included studies for additional references.

SELECTION CRITERIA

We selected studies that reported the diagnostic test accuracy of any of the aforementioned tests in detecting PMD or cancer of the lip or oral cavity. Diagnosis of PMD or cancer was made by specialist clinicians or pathologists, or alternatively through follow-up.

DATA COLLECTION AND ANALYSIS

Two review authors independently screened titles and abstracts for relevance. Eligibility, data extraction and quality assessment were carried out by at least two authors independently and in duplicate. Studies were assessed for methodological quality using QUADAS-2. We reported the sensitivity and specificity of the included studies.

MAIN RESULTS

Thirteen studies, recruiting 68,362 participants, were included. These studies evaluated the diagnostic accuracy of COE (10 studies), MSE (two studies). One randomised controlled of test accuracy trial directly evaluated COE and vital rinsing. There were no eligible diagnostic accuracy studies evaluating light-based detection or blood or salivary sample analysis (which tests for the presence of bio-markers of PMD and oral cancer). Given the clinical heterogeneity of the included studies in terms of the participants recruited, setting, prevalence of target condition, the application of the index test and reference standard and the flow and timing of the process, the data could not be pooled. For COE (10 studies, 25,568 participants), prevalence in the diagnostic test accuracy sample ranged from 1% to 51%. For the eight studies with prevalence of 10% or lower, the sensitivity estimates were highly variable, and ranged from 0.50 (95% confidence interval (CI) 0.07 to 0.93) to 0.99 (95% CI 0.97 to 1.00) with uniform specificity estimates around 0.98 (95% CI 0.97 to 1.00). Estimates of sensitivity and specificity were 0.95 (95% CI 0.92 to 0.97) and 0.81 (95% CI 0.79 to 0.83) for one study with prevalence of 22% and 0.97 (95% CI 0.96 to 0.98) and 0.75 (95% CI 0.73 to 0.77) for one study with prevalence of 51%. Three studies were judged to be at low risk of bias overall; two were judged to be at high risk of bias resulting from the flow and timing domain; and for five studies the overall risk of bias was judged as unclear resulting from insufficient information to form a judgement for at least one of the four quality assessment domains. Applicability was of low concern overall for two studies; high concern overall for three studies due to high risk population, and unclear overall applicability for five studies. Estimates of sensitivity for MSE (two studies, 34,819 participants) were 0.18 (95% CI 0.13 to 0.24) and 0.33 (95% CI 0.10 to 0.65); specificity for MSE was 1.00 (95% CI 1.00 to 1.00) and 0.54 (95% CI 0.37 to 0.69). One study (7975 participants) directly compared COE with COE plus vital rinsing in a randomised controlled trial. This study found a higher detection rate for oral cavity cancer in the conventional oral examination plus vital rinsing adjunct trial arm.

AUTHORS' CONCLUSIONS

The prevalence of the target condition both between and within index tests varied considerably. For COE estimates of sensitivity over the range of prevalence levels varied widely. Observed estimates of specificity were more homogeneous. Index tests at a prevalence reported in the population (between 1% and 5%) were better at correctly classifying the absence of PMD or oral cavity cancer in disease-free individuals that classifying the presence in diseased individuals. Incorrectly classifying disease-free individuals as having the disease would have clinical and financial implications following inappropriate referral; incorrectly classifying individuals with the disease as disease-free will mean PMD or oral cavity cancer will only be diagnosed later when the disease will be more severe. General dental practitioners and dental care professionals should remain vigilant for signs of PMD and oral cancer whilst performing routine oral examinations in practice.

Are we able to reduce the mortality and morbidity of oral cancer; some considerations

Oral cancer makes up 1%-2% of all cancers that may arise in the body. The majority of oral cancers consists of squamous cell carcinomas. Oral cancer carries a considerable mortality rate, being mainly dependent on the stage of the disease at admission. Worldwide some 50% of the patients with oral cancer present with advanced disease. There are several ways of trying to diagnose oral cancer in a lower tumor stage, being 1) mass screening or screening in selected patients, 2) reduction of patients’ delay, and 3) reduction of doctors’ delay. Oral cancer population-based screening (“mass screening”) programs do not meet the guidelines for a successful outcome. There may be some benefit when focusing on high-risk groups, such as heavy smokers and heavy drinkers. Reported reasons for patients’ delay range from fear of a diagnosis of cancer, limited accessibility of primary health care, to unawareness of the possibility of malignant oral diseases. Apparently, information campaigns in news programs and TV have little effect on patients’ delay. Mouth self-examination may have some value in reducing patients’ delay. Doctors’ delay includes dentists’ delay and diagnostic delay caused by other medical and dental health care professionals. Doctors’ delay may vary from almost zero days up to more than six months. Usually, morbidity of cancer treatment is measured by quality of life (QoL) questionnaires. In the past decades this topic has drawn a lot of attention worldwide. It is a challenge to decrease the morbidity that is associated with the various treatment modalities that are used in oral cancer without substantially compromising the survival rate. Smoking cessation contributes to reducing the risk of oral cancers, with a 50% reduction in risk within five years. Indeed, risk factor reduction seems to be the most effective tool in an attempt to decrease the morbidity and mortality of oral cancer.

Key words:Oral cancer, early diagnosis, quality of life.