Diagnostic Criteria for Temporomandibular Disorders (DC/TMD) for Clinical and Research Applications: recommendations of the International RDC/TMD Consortium Network* and Orofacial Pain Special Interest Group†.

AIMS: The original Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) Axis I diagnostic algorithms have been demonstrated to be reliable. However, the Validation Project determined that the RDC/TMD Axis I validity was below the target sensitivity of ≥ 0.70 and specificity of ≥ 0.95. Consequently, these empirical results supported the development of revised RDC/TMD Axis I diagnostic algorithms that were subsequently demonstrated to be valid for the most common pain-related TMD and for one temporomandibular joint (TMJ) intra-articular disorder. The original RDC/TMD Axis II instruments were shown to be both reliable and valid. Working from these findings and revisions, two international consensus workshops were convened, from which recommendations were obtained for the finalization of new Axis I diagnostic algorithms and new Axis II instruments. METHODS: Through a series of workshops and symposia, a panel of clinical and basic science pain experts modified the revised RDC/TMD Axis I algorithms by using comprehensive searches of published TMD diagnostic literature followed by review and consensus via a formal structured process. The panel's recommendations for further revision of the Axis I diagnostic algorithms were assessed for validity by using the Validation Project's data set, and for reliability by using newly collected data from the ongoing TMJ Impact Project-the follow-up study to the Validation Project. New Axis II instruments were identified through a comprehensive search of the literature providing valid instruments that, relative to the RDC/TMD, are shorter in length, are available in the public domain, and currently are being used in medical settings. RESULTS: The newly recommended Diagnostic Criteria for TMD (DC/TMD) Axis I protocol includes both a valid screener for detecting any pain-related TMD as well as valid diagnostic criteria for differentiating the most common pain-related TMD (sensitivity ≥ 0.86, specificity ≥ 0.98) and for one intra-articular disorder (sensitivity of 0.80 and specificity of 0.97). Diagnostic criteria for other common intra-articular disorders lack adequate validity for clinical diagnoses but can be used for screening purposes. Inter-examiner reliability for the clinical assessment associated with the validated DC/TMD criteria for pain-related TMD is excellent (kappa ≥ 0.85). Finally, a comprehensive classification system that includes both the common and less common TMD is also presented. The Axis II protocol retains selected original RDC/TMD screening instruments augmented with new instruments to assess jaw function as well as behavioral and additional psychosocial factors. The Axis II protocol is divided into screening and comprehensive self report instrument sets. The screening instruments' 41 questions assess pain intensity, pain-related disability, psychological distress, jaw functional limitations, and parafunctional behaviors, and a pain drawing is used to assess locations of pain. The comprehensive instruments, composed of 81 questions, assess in further detail jaw functional limitations and psychological distress as well as additional constructs of anxiety and presence of comorbid pain conditions. CONCLUSION: The recommended evidence-based new DC/TMD protocol is appropriate for use in both clinical and research settings. More comprehensive instruments augment short and simple screening instruments for Axis I and Axis II. These validated instruments allow for identification of patients with a range of simple to complex TMD presentations.

Dental students' attitudes about older adults: do type and amount of contact make a difference?

This study was an extension of a previous study that considered dental student attitudes about older adults. In the current study, the association of student interactions with older adults, in both the dental school clinic and daily life, with their attitudes about this group was evaluated using the Aging Semantic Differential. A total of 311 dental students across all four years of academic standing were included in the study. The results showed that students' interactions with older adults outside the clinic did not relate to positive attitudes; however, even after controlling for the age of the student and the frequency, type of individual, and context of interactions with older adults outside the dental clinic, the number of older adult patients seen in the clinic showed a significant positive relationship with attitudes towards older adults. These results reinforce the conclusions drawn in a previous study that dental students' general attitudes about older adults may be changed, but that it is the exposure to older adults in a clinical setting that seems to be more critical in shaping these attitudes.

The challenges of defining oral cancer: analysis of an ontological approach.

An important inconsistency currently exists in the literature on oral cancer. Reviewing this literature, one finds that the term oral cancer is defined and described with great variation. In a search in PubMed, at least 17 different terms were found for titles of papers reporting data on oral cancer. The variability of the terms used for designating anatomic regions and type of malignant neoplasms for reporting oral cancer has hampered the ability of researchers to effectively retrieve information concerning oral cancer. Therefore, it is sometimes extremely difficult to provide meaningful comparisons among various studies of oral cancer. Recently, a new ontological strategy that is rooted in consensus-based controlled vocabularies has been proposed to improve the consistency of data in dental research (Smith et al. in J Am Dent Assoc 141:1173-1175, 2010). In this paper, we analyzed the terminology dilemma on oral cancer and explained the current situation. We proposed a possible solution to the dilemma using an ontology-based approach. The advantages for applying this strategy are also discussed.

Factors that influence dental students' attitudes about older adults.

Our study considered dental students' general attitudes towards older persons using the Aging Semantic Differential. The influence of age, gender, cohort, education, and academic exposure on general attitudes towards older adults was evaluated using a total of 328 dental students across all four years of academic standing. Students were assessed in the fall and spring semesters. The results showed differential responding on the four subscales, with slight positive ratings on the autonomy, acceptability, and integrity subscales and a slight negative rating for instrumentality. Females expressed more negative attitudes than their male counterparts, with no age differences. There was also no significant impact from a specific, didactic educational component offered to the fourth-year students. However, the fourth-year students were the only group to show positive changes across the full academic year. The results suggest that general attitudes can be changed, but didactic (classroom) forms of education alone are insufficient to meaningfully modify students' perceptions of the elderly. Exposure to older adults in a clinical setting appears to be a critical element, as the fourth-year students received much greater exposure to older patients and more intensified interface with their mentors.

The OBO Foundry: coordinated evolution of ontologies to support biomedical data integration.

The value of any kind of data is greatly enhanced when it exists in a form that allows it to be integrated with other data. One approach to integration is through the annotation of multiple bodies of data using common controlled vocabularies or 'ontologies'. Unfortunately, the very success of this approach has led to a proliferation of ontologies, which itself creates obstacles to integration. The Open Biomedical Ontologies (OBO) consortium is pursuing a strategy to overcome this problem. Existing OBO ontologies, including the Gene Ontology, are undergoing coordinated reform, and new ontologies are being created on the basis of an evolving set of shared principles governing ontology development. The result is an expanding family of ontologies designed to be interoperable and logically well formed and to incorporate accurate representations of biological reality. We describe this OBO Foundry initiative and provide guidelines for those who might wish to become involved.

The qualitative and time-dependent character of spatial relations in biomedical ontologies.

MOTIVATION: The formal representation of mereological aspects of canonical anatomy (parthood relations) is relatively well understood. The formal representation of other aspects of canonical anatomy, such as connectedness and adjacency relations between anatomical parts, their shape and size as well as the spatial arrangement of anatomical parts within larger anatomical structures are, however, much less well understood and represented in existing computational anatomical and bio-medical ontologies only insufficiently. RESULTS: In this article, we provide a methodology of how to incorporate this kind of information into anatomical and bio-medical ontologies by applying techniques of representing qualitative spatial information from Artificial Intelligence. In particular, we focus on how to explicitly take into account the qualitative and time-dependent character of these relations. As a running example, we use the human temporomandibular joint (TMJ). AVAILABILITY: Using the presented methodology, a formal ontology was developed which is accessible on http://www.ifomis.org/bfo/fol. This ontology may help to improve the logical and ontological rigor of bio-medical ontologies such as the OBO relation ontology.

More than a set of teeth: assessing and enhancing dental students' perceptions of older adults.

Dental professionals play a key role in maintaining the well-being of older adults by identifying problems that disturb systemic health. A 3-part instrument was used to assess dental students' knowledge of aging, comfort with patient diversity and patient care strategies (Years 1-4; N = 321). Collaborative education and services were developed by the Schools of Dental Medicine and Social Work. Results indicate that dental students' knowledge of aging was low (Palmore's FAQ 1 Range = 58%-64%), comfort with geriatric issues improved after the first year of intervention, and strategies for patient care changed with experience. Group differences suggest the importance of utilizing educational "turning points" as teachable moments.

The Significance of SNODENT.

SNODENT is a dental diagnostic vocabulary incompletely integrated in SNOMED-CT. Nevertheless, SNODENT could become the de facto standard for dental diagnostic coding. SNODENT's manageable size, the fact that it is administratively self-contained, and relates to a well-understood domain provides valuable opportunities to formulate and test, in controlled experiments, a series of hypothesis concerning diagnostic systems. Of particular interest are questions related to establishing appropriate quality assurance methods for its optimal level of detail in content, its ontological structure, its construction and maintenance. This paper builds on previous-software-based methodologies designed to assess the quality of SNOMED-CT. When applied to SNODENT several deficiencies were uncovered. 9.52% of SNODENT terms point to concepts in SNOMED-CT that have some problem. 18.53% of SNODENT terms point to SNOMED-CT concepts do not have, in SNOMED, the term used by SNODENT. Other findings include the absence of a clear specification of the exact relationship between a term and a termcode in SNODENT and the improper assignment of the same termcode to terms with significantly different meanings. An analysis of the way in which SNODENT is structurally integrated into SNOMED resulted in the generation of 1081 new termcodes reflecting entities not present in the SNOMED tables but required by SNOMED's own description logic based classification principles. Our results show that SNODENT requires considerable enhancements in content, quality of coding, quality of ontological structure and the manner in which it is integrated and aligned with SNOMED. We believe that methods for the analysis of the quality of diagnostic coding systems must be developed and employed if such systems are to be used effectively in both clinical practice and clinical research.

Improving patient retention and access to oral health care: the CARES program.

Improving access to dental care for patients experiencing barriers such as financial, transportation, or mental health is a public health concern. Dental schools have an obligation to assist patients experiencing such barriers as well as to educate future dentists and allied professionals on how to assist these patients in overcoming barriers. Once admitted to the dental clinic, retention issues can further complicate the provision of dental care. This article will describe an innovative program designed to address biopsychosocial barriers to dental care. Needs assessments of patients sitting in the waiting room of the dental clinic were conducted by master's of social work (M.S.W.) students. Based on needs assessment results, common dental care barriers were identified and served as the foundation for the establishment of a social work program in the dental clinic. Dental students, faculty, and staff refer patients to the social work program when barriers to care are found. These biopsychosocial barriers are addressed by social workers, uniquely qualified professionals in providing case management, advocacy, referrals, education, and services (CARES). Over the course of three years, 80 percent of patients experiencing an identified barrier to the receipt of dental care were retained through social work intervention. These patients were able to receive dental care within the past year. Dental schools can collaborate with social work schools to establish a protocol and assistance program for dental patients experiencing difficulty accessing care, thereby improving oral health status, retention rates, and dental student education.

Understanding dental students' knowledge and perceptions of older people: toward a new model of geriatric dental education.

Increasing numbers of older people and the decreasing rates of edentulism highlight the importance of dental education that focuses on oral health and aging. This evaluation study assessed dental students' knowledge and beliefs about older people as well as their awareness of the biopsychosocial concerns that are potential barriers to oral health care. Dental students' (N=202) knowledge and perceptions of older people were evaluated before and after the first year of a new educational program. Students completed the Palmore Facts on Aging Quiz II (FAQ II) and answered questions about health problems and social concerns that may influence patient care. The intervention was twofold: 1) the CARES (Counseling, Advocacy, Referral, Education, and Service) Program, a clinical collaboration between the schools of Dental Medicine and Social Work, was initiated; and 2) all students were exposed to geriatric educational interventions. FAQ II scores did not significantly change, but dental students' awareness of mental health, independence, and social concerns increased between Times 1 and 2. The results of the study suggest that positive interactions with older adults by health care providers may depend more on positive perceptions toward older people than increased knowledge about aging. Future research will focus on positive experiences with older adults and attitudes of dental students toward the elderly.

Coexistent concerns: assessing the social and health needs of dental clinic patients.

University dental clinic professionals identified increasing numbers of patients with complex problems and generated 2 research questions: (1) Are there significant health and social concerns within the dental clinic population that indicate the need for high-risk screening and social work services?; and (2) How do age, gender, and income influence health and social concerns in this population? This exploratory descriptive cross-sectional study employed a brief self-report survey in a clinic waiting area. Logistic regression was used to understand the influence of age, gender and income on the existence of specific concerns. Results indicate that caregiving, finances and health are issues for 1/3 of the participants and that 44% endorsed 2 or more concerns. These findings were used to develop a routine high-risk screening tool for dental clinic patients and social work services within the clinic; they suggest that community clinics with dental services are an important place for identifying complex unmet needs.