Interprofessional care for temporomandibular joint disorders: the patient's perspective.

The Indiana University School of Dentistry TMJ Institute is a multidisciplinary clinic designed to support the management of patients with challenging temporomandibular disorders. Professionals across dentistry, medicine, physical therapy, and social work collaborate to create a customised, interprofessional consensus to patient care. Compared with traditional, siloed healthcare models, are patients diagnosed with TMJ dysfunction satisfied with the quality of care received from an interprofessional approach? The objective of this study is to determine the level of patient satisfaction at the Institute using a 5-Point Likert scale patient questionnaire. A total of 93 questionnaires were distributed and 84 were collected. A total of 43% of patients travelled over 50 miles to be seen at the Institute. 'Strongly agree' was the most selected response for each prompt. The exception was whether patients preferred to meet with each clinician individually, to which 'strongly disagree' or 'disagree' was the most popular response, indicating that an interprofessional approach was preferred. The results and comments provided by patients revealed that most patients diagnosed with TMJ dysfunction were highly satisfied with the interprofessional approach used at the TMJ Institute. Our study suggests that positive patient satisfaction is an important factor in assessing the quality and efficacy of interprofessional, patient-centred clinic models.

Myofibroma of the body of mandible: A case report of a solitary lesion.

Myofibromas are rare benign lesions and are often found as solitary entities. The treatment of the lesion is complete excision and the recurrence is rare. A 56-year-old female presented to the Oral and Maxillofacial Surgery clinic for further evaluation and management of a solitary lesion of the right body of the mandible that was first noticed incidentally by her referring dentist. An incisional biopsy was first performed in the clinic with the diagnosis of myofibroma. The patient was then treated with complete excision of the lesion and extraction of the adjacent teeth. The final biopsy report confirmed the initial diagnosis of myofibroma. Intraosseous solitary lesion of the mandible is a rare lesion with a handful of reported cases. Uniquely, the diagnosis of myofibroma in this 56-year-old is the oldest reported case of myofibroma. There are distinct histopathological features of the lesion that distinguishes this entity from other closely resembling lesions.

Feedlot operators' and cow-calf producers' perspectives on the economic value of health-preconditioned weaner calves in South Africa.

Health preconditioning programmes have recently gained increased attention in South Africa. Uncertainty remains about whether South African feedlot operators and cow-calf producers perceive health preconditioning as an economic value-added management practice. Results indicated that most feedlot operators were willing to pay average price premiums of R0.58/kg, R0.83/kg and R1.02/kg for a basic, intermediate and comprehensive health preconditioning programme, respectively. Cow-calf producers were willing to accept average price premiums of R0.49/kg, R0.72/kg and R0.83/kg for the programmes. The findings provide information that could contribute to potential market development for health-preconditioned weaners in developing countries and could significantly aid in improving efficiency and herd health within beef industries worldwide.

Role of alloplastic reconstruction of the temporomandibular joint in the juvenile idiopathic arthritis population.

We present outcomes following total joint replacement of the temporomandibular joint (TMJ) in adolescent and young adult patients with juvenile idiopathic arthritis (JIA), and discuss a multidisciplinary treatment model. A retrospective review was performed of patients presenting to the University of North Carolina Oral and Maxillofacial Surgery Service (Chapel Hill, NC) from 2016- 2018 who underwent unilateral or bilateral total replacement of the TMJ for a diagnosis of end-stage joint disease secondary to JIA. Inclusion criteria included diagnosis by a rheumatologist, presentation to our department in adolescence (under 18 years of age), surgical intervention in adolescence or young adulthood (under 25 years of age), and documentation of preoperative and postoperative pain, maximum incisal opening (MIO), and quality of life measures. A database was created and data were then analysed both qualitatively and quantitatively. Five patients met the inclusion criteria. All achieved MIO of more than 35mm with a mean improvement of 24mm, and were able to tolerate a regular diet. All preoperative pain had essentially been eliminated. All patients reported a considerable improvement in quality of life. To our knowledge, this is the first report to document a series of paediatric and young adult patients with JIA who required total replacement of the joint for end-stage joint disease. To our knowledge, it is also the first to describe the use of a collaborative clinic of oral and maxillofacial surgeons, neuroradiologists, dental radiologists, orofacial pain specialists, paediatric rheumatologists, and paediatric nurse practitioners, to care for these patients.

Responding to a pandemic: Development of the Carolina Dentistry Virtual Oral Health Care Helpline.

BACKGROUND: A virtual oral health care help line was established to provide consultation and triage for people with dental questions and concerns. Its goal during a pandemic was to keep patients from seeking unnecessary in-person care from emergency departments and urgent care clinics, especially when dental practices were closed or limited to providing essential urgent and emergency oral health care. METHODS: The Adams School of Dentistry, University of North Carolina at Chapel Hill, developed the Carolina Dentistry Virtual Oral Health Care Helpline using a quality improvement framework with faculty and staff member feedback. The process included establishing infrastructure (phone, video, protocols, referrals, documentation), personnel (scheduling, training, calibration), and internal and external communication. The authors collected retrospective information for descriptive evaluation of the first month's operations. RESULTS: There were 337 telephone calls answered, of which 65 (19%) were administrative and 272 (81%) were related to dental concerns. Dental pain (54%) was the most prevalent reason for calling. Triage and Providers referred 107 of 175 callers (61%) to the school's urgent care center. Of the 79 callers who received teleconsultations from virtual providers, 33 (42%) did not require additional follow-up, and 7 (9%) needed a follow-up phone call. Overall, 4 people were referred to community clinics, and 4 were referred to the emergency department. CONCLUSIONS: The Helpline was launched quickly and improved through quality improvement cycles, and it provided a needed community dental service. The process resolved some patient concerns without their seeking urgent or emergency care. PRACTICAL IMPLICATIONS: The pandemic has increased teledentistry practice. The authors describe establishing a dental school's virtual oral health Helpline, which provides a framework for dental practices seeking to use this patient communication modality.

Teledentistry Knowledge and Attitudes: Perspectives on the role of dental hygienists.

Purpose. The first statewide teledentistry (TD) Summit in North Carolina (NC) was convened by the University of North Carolina (UNC) at Chapel Hill in 2018. The purpose of this analysis is to compare Summit participants' understanding of TD, its benefits, challenges, solutions and the role of dental hygienists, pre- and post-Summit.Methods. Summit invitees included leaders in related policy, education, advocacy, legislation, technology and UNC dental hygiene and dental students. Descriptive analyses and exact McNemar's matched pair tests compared proportions of participants' responses to pre- and post-Summit surveys.Results. Response rates were pre-Summit 75.3% (n= 58) and post-Summit 70.1% (n= 47); matched pre-post survey pairs (n=42). Pre-Summit respondents reported their primary role in administration (48.0%), teaching and mentoring (21.0%), patient care (12.0%) or as a student (19.0%). Among respondents, overall self-reported TD knowledge increased from 38.1% to 92.9%, p< 0.001. Their reported extent TD should be developed in NC increased from 78.6% to 95.2%, p = 0.07; the extent hygienists should have a role in TD services increased from 83.3% to 88.1%, p = 0.73. The most frequently mentioned challenge was state practice acts requiring direct supervision of dental hygienists, limiting their TD use in community settings, which increased in the pre- to post-surveys from 33.3% to 59.5% respectively, p = 0.01.Conclusion. Among attendees at the statewide TD Summit, self-reported knowledge was high and attitudes favorable for moving forward with TD in NC. However, state dental practice act barriers restricting dental hygienist participation in TD was the first challenge respondents thought needed to be addressed.

Ultrasound versus magnetic resonance imaging of the temporomandibular joint in juvenile idiopathic arthritis: a systematic review.

A systematic review of published articles on ultrasound (US) and magnetic resonance imaging (MRI) of the temporomandibular joint (TMJ) in juvenile idiopathic arthritis (JIA) was performed to answer the question "What is the sensitivity and specificity of US as compared to MRI in diagnosing acute and chronic joint changes in patients with JIA?" The most recent evidence was sought in published articles via a search of the PubMed, Ovid, and Embase databases. Article appraisal was performed by two reviewers. Nineteen articles reporting prospective or ambispective studies comparing US to MRI in TMJ imaging were found. Six of these articles were specific to JIA patients. The heterogeneity of these articles made comparison difficult. Of the acute and chronic changes assessed (disk displacement, joint effusion, bony deformity), only joint effusion was appropriately assessed by multiple authors, with US having a sensitivity of 0-72% and specificity of 70-83% as compared to MRI. There was a paucity of studies specific to JIA, with many studying adult, non-rheumatic patients. This systematic review found that dynamic imaging with high-resolution US improves sensitivity and specificity compared to static, low-resolution US. Additionally, there is evidence to suggest that US imaging following a baseline MRI can increase US sensitivity and specificity and may have a future role in disease surveillance.

Body mass index (BMI), postoperative appearance satisfaction, and sexual function in breast cancer survivorship.

PURPOSE: We sought to explore the correlation between BMI and postoperative sexual function, body image, and breast-specific sensuality before and after breast cancer surgery. METHODS: A cross-sectional survey of patients at least 1 year from surgery employed the Female Sexual Function Index (FSFI) and investigator-generated questions. Patients who underwent lumpectomy (L), mastectomy (M), and mastectomy with reconstruction (MR) were compared across three BMI groups: normal weight, overweight, and obese. RESULTS: Two hundred fifty-five patients underwent lumpectomy (L, n = 174), mastectomy (M, n = 22), or mastectomy with reconstruction (MR, n = 59). Median age was 57 (range 30-93) and median BMI was 28 (range 19-45). Obese and overweight women reported more appearance dissatisfaction (18.1 and 13.0%) than normal weight women (4.1%) (p = 0.01). Lower satisfaction was associated with increasing BMI within the MR group (p = 0.05). The obese group's median FSFI score met criteria for sexual dysfunction (25.90, range 11.30-33.10). More overweight women reported their chest played an important role in intimacy before and after surgery, but a postoperative decline in the importance of this role was observed in all groups. CONCLUSIONS: Greater post-treatment BMI is inversely related to postoperative appearance satisfaction, particularly in those undergoing mastectomy with reconstruction. The role of the breast in intimacy is greatest in overweight women, but decreases postoperatively in all BMI groups. IMPLICATIONS FOR CANCER SURVIVORS: Postoperative appearance satisfaction and sexual function seems to be correlated to post-treatment BMI, which highlights the need to encourage perioperative weight management for improved survivorship outcomes.

Auditory prediction errors as individual biomarkers of schizophrenia.

Schizophrenia is a complex psychiatric disorder, typically diagnosed through symptomatic evidence collected through patient interview. We aim to develop an objective biologically-based computational tool which aids diagnosis and relies on accessible imaging technologies such as electroencephalography (EEG). To achieve this, we used machine learning techniques and a combination of paradigms designed to elicit prediction errors or Mismatch Negativity (MMN) responses. MMN, an EEG component elicited by unpredictable changes in sequences of auditory stimuli, has previously been shown to be reduced in people with schizophrenia and this is arguably one of the most reproducible neurophysiological markers of schizophrenia. EEG data were acquired from 21 patients with schizophrenia and 22 healthy controls whilst they listened to three auditory oddball paradigms comprising sequences of tones which deviated in 10% of trials from regularly occurring standard tones. Deviant tones shared the same properties as standard tones, except for one physical aspect: 1) duration - the deviant stimulus was twice the duration of the standard; 2) monaural gap - deviants had a silent interval omitted from the standard, or 3) inter-aural timing difference, which caused the deviant location to be perceived as 90° away from the standards. We used multivariate pattern analysis, a machine learning technique implemented in the Pattern Recognition for Neuroimaging Toolbox (PRoNTo) to classify images generated through statistical parametric mapping (SPM) of spatiotemporal EEG data, i.e. event-related potentials measured on the two-dimensional surface of the scalp over time. Using support vector machine (SVM) and Gaussian processes classifiers (GPC), we were able classify individual patients and controls with balanced accuracies of up to 80.48% (p-values = 0.0326, FDR corrected) and an ROC analysis yielding an AUC of 0.87. Crucially, a GP regression revealed that MMN predicted global assessment of functioning (GAF) scores (correlation = 0.73, R2 = 0.53, p = 0.0006).

Rare DNA variants in the brain-derived neurotrophic factor gene increase risk for attention-deficit hyperactivity disorder: a next-generation sequencing study.

Attention-deficit hyperactivity disorder (ADHD) is a prevalent and highly heritable disorder of childhood with negative lifetime outcomes. Although candidate gene and genome-wide association studies have identified promising common variant signals, these explain only a fraction of the heritability of ADHD. The observation that rare structural variants confer substantial risk to psychiatric disorders suggests that rare variants might explain a portion of the missing heritability for ADHD. Here we believe we performed the first large-scale next-generation targeted sequencing study of ADHD in 152 child and adolescent cases and 188 controls across an a priori set of 117 genes. A multi-marker gene-level analysis of rare (<1% frequency) single-nucleotide variants (SNVs) revealed that the gene encoding brain-derived neurotrophic factor (BDNF) was associated with ADHD at Bonferroni corrected levels. Sanger sequencing confirmed the existence of all novel rare BDNF variants. Our results implicate BDNF as a genetic risk factor for ADHD, potentially by virtue of its critical role in neurodevelopment and synaptic plasticity.

Quality of life: patient-reported outcomes after total replacement of the temporomandibular joint.

Since publication of the UK guidelines on total replacement of the temporomandibular joint (TMJ) in 2008 by the British Association of Oral and Maxillofacial Surgeons (BAOMS), pain scores, mouth opening, and diet have been used as markers of success. We have looked at quality of life (QoL) as another. We analysed the data from a single surgeon on patients who had had joints replaced and devised a questionnaire to find out about the subjective, functional, psychological, and social aspects of TMJ disease. A total of 18 patients who had the same operation were included (mean (range) age 50 (33 - 73) years, mean (range) follow up 30 (18 - 48) months). Jaw function and facial aesthetics had improved, and patients needed less analgesia. Overall, they reported a better QoL with improvements in mood and social interaction, and the activities of daily life were easier. The NHS uses QoL questionnaires to measure success in fields such as orthopaedic surgery, but currently we know of no nationally accepted questionnaire that measures success after total replacement of the TMJ.

Separating the wheat from the chaff: systematic identification of functionally relevant noncoding variants in ADHD.

Attention deficit hyperactivity disorder (ADHD) is a highly heritable psychiatric condition with negative lifetime outcomes. Uncovering its genetic architecture should yield important insights into the neurobiology of ADHD and assist development of novel treatment strategies. Twenty years of candidate gene investigations and more recently genome-wide association studies have identified an array of potential association signals. In this context, separating the likely true from false associations ('the wheat' from 'the chaff') will be crucial for uncovering the functional biology of ADHD. Here, we defined a set of 2070 DNA variants that showed evidence of association with ADHD (or were in linkage disequilibrium). More than 97% of these variants were noncoding, and were prioritised for further exploration using two tools-genome-wide annotation of variants (GWAVA) and Combined Annotation-Dependent Depletion (CADD)-that were recently developed to rank variants based upon their likely pathogenicity. Capitalising on recent efforts such as the Encyclopaedia of DNA Elements and US National Institutes of Health Roadmap Epigenomics Projects to improve understanding of the noncoding genome, we subsequently identified 65 variants to which we assigned functional annotations, based upon their likely impact on alternative splicing, transcription factor binding and translational regulation. We propose that these 65 variants, which possess not only a high likelihood of pathogenicity but also readily testable functional hypotheses, represent a tractable shortlist for future experimental validation in ADHD. Taken together, this study brings into sharp focus the likely relevance of noncoding variants for the genetic risk associated with ADHD, and more broadly suggests a bioinformatics approach that should be relevant to other psychiatric disorders.

Tumour-suppression function of KLF12 through regulation of anoikis.

Suppression of detachment-induced cell death, known as anoikis, is an essential step for cancer metastasis to occur. We report here that expression of KLF12, a member of the Kruppel-like family of transcription factors, is downregulated in lung cancer cell lines that have been selected to grow in the absence of cell adhesion. Knockdown of KLF12 in parental cells results in decreased apoptosis following cell detachment from matrix. KLF12 regulates anoikis by promoting the cell cycle transition through S phase and therefore cell proliferation. Reduced expression levels of KLF12 results in increased ability of lung cancer cells to form tumours in vivo and is associated with poorer survival in lung cancer patients. We therefore identify KLF12 as a novel metastasis-suppressor gene whose loss of function is associated with anoikis resistance through control of the cell cycle.

SETD2 loss-of-function promotes renal cancer branched evolution through replication stress and impaired DNA repair.

Defining mechanisms that generate intratumour heterogeneity and branched evolution may inspire novel therapeutic approaches to limit tumour diversity and adaptation. SETD2 (Su(var), Enhancer of zeste, Trithorax-domain containing 2) trimethylates histone-3 lysine-36 (H3K36me3) at sites of active transcription and is mutated in diverse tumour types, including clear cell renal carcinomas (ccRCCs). Distinct SETD2 mutations have been identified in spatially separated regions in ccRCC, indicative of intratumour heterogeneity. In this study, we have addressed the consequences of SETD2 loss-of-function through an integrated bioinformatics and functional genomics approach. We find that bi-allelic SETD2 aberrations are not associated with microsatellite instability in ccRCC. SETD2 depletion in ccRCC cells revealed aberrant and reduced nucleosome compaction and chromatin association of the key replication proteins minichromosome maintenance complex component (MCM7) and DNA polymerase δ hindering replication fork progression, and failure to load lens epithelium-derived growth factor and the Rad51 homologous recombination repair factor at DNA breaks. Consistent with these data, we observe chromosomal breakpoint locations are biased away from H3K36me3 sites in SETD2 wild-type ccRCCs relative to tumours with bi-allelic SETD2 aberrations and that H3K36me3-negative ccRCCs display elevated DNA damage in vivo. These data suggest a role for SETD2 in maintaining genome integrity through nucleosome stabilization, suppression of replication stress and the coordination of DNA repair.

Temporomandibular joint multidisciplinary team clinic.

Patients with dysfunction of the temporomandibular joint (TMJ) commonly present to oral and maxillofacial departments and are increasingly being managed by a subspecialist group of surgeons. We review the outcomes of patients attending a specialist TMJ multidisciplinary team (MDT) clinic. All patients are simultaneously reviewed by a consultant oral and maxillofacial surgeon, consultant in oral medicine, specialist physiotherapist, and maxillofacial prosthetist, and they can also see a consultant liaison psychiatrist. They are referred from primary, secondary, and tertiary care when medical and surgical treatment in the routine TMJ clinic has failed, and are triaged by the attending maxillofacial surgeon. On discharge they are returned to the care of the referring practitioner. We review the outcomes of patients attending this clinic over a 2-year period and show improvements in pain scores and maximal incisal opening, as well as quality of life outcome measures. All units in the UK with an interest in the management of diseases of the TMJ should consider establishing this type of clinic and should use available resources and expertise to maximise outcomes.

Multidisciplinary approach in the management of absolute trismus with bilateral temporomandibular joint replacements for a patient with juvenile idiopathic arthritis.

Juvenile idiopathic arthritis (JIA) is an exclusion diagnosis that gathers together all forms of arthritis that begin before the age of 16 years, persist for more than 6 weeks and are of unknown origin. We present the case of a 42 year old woman with a 20 year history of absolute trismus, secondary to bilateral temporomandibular joint (TMJ) ankylosis caused by JIA. The trismus resulted in grossly compromised oral hygiene and limited the patient to a semi-solid diet. JIA also affected her neck leading to a severe cervico-thoracic kyphosis. The patient who had been wheelchair bound developed severe lymphoedema of both lower limbs, complicating the pre-operative work up further. This particularly challenging case required input from specialists in anaesthetics, neurosurgery, special care dentistry, intensive care and maxillofacial surgery. Treatment consisted of ankylosis release, dental clearance and bilateral alloplastic replacement of her TMJs with custom implants. A full range of hinge movement and good functional outcome was achieved. This case presents the multidisciplinary approach to a severely compromised patient and illustrates the pre-, intra- and postoperative management of bilateral TMJ ankylosis with bespoke implants.

Single stage treatment of ankylosis of the temporomandibular joint using patient-specific total joint replacement and virtual surgical planning.

Ankylosis of the temporomandibular joint (TMJ) is a debilitating condition that can result in pain, trismus, and a poor quality of life. It can be caused by injury, infection, and rheumatoid disease. Current management includes gap arthroplasty, interpositional arthroplasty, and reconstruction. Traditionally, joints are reconstructed using stock implants, or the procedure is done in two stages with an additional computed tomography (CT) scan between the resective and reconstructive procedures and use of stereolithographic models to aid the design of the definitive prostheses. We describe a technique for the resection of ankylosis and reconstruction of the joint in a single operation using virtually designed custom-made implants. Five patients with ankylosis of the TMJ had a single stage operation with reconstruction between 2010 and 2012. All had preoperative high-resolution CT with contrast angiography. During an international web-based teleconference between the surgeon and the engineer a virtual resection of the ankylosis was done using the reconstructed CT images. The bespoke cutting guides and implants were designed virtually at the same time and were then manufactured precisely using computer-aided design and manufacture (CAD-CAM) over 6 weeks. After release of the ankylosis and reconstruction, the patients underwent an exercise regimen to improve mouth opening. Follow-up was for a minimum of 6 months. Four patients had one operation, and one patient had two. Median/Mean maximum incisal opening increased from 0.6mm before operation to 25 mm afterwards (range 23-27), and there was minimal surgical morbidity. This new method effectively treats ankylosis of the TMJ in a single stage procedure. Fewer operations and hospital stays, and the maintenance of overall clinical outcome are obvious advantages.