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Stomatognathic Diseases - Top 30 Publications

A case report of tongue metastasis from lung squamous cell carcinoma and literature review.

Tongue metastasis from lung cancer is extremely rare, and the prognosis of these patients is rather poor.

Clinical and imaging features of spinal cord type of neuro Behçet disease: A case report and systematic review.

To investigate the clinical and MRI characteristics of spinal cord nerve Behçet's disease.

Differential Prognostic Value of Metabolic Heterogeneity of Primary Tumor and Metastatic Lymph Nodes in Patients with Pharyngeal Cancer.

We aimed to explore the prognostic value of metabolic heterogeneity of (18)F-FDG uptake in chemoradiotherapy-treated pharyngeal cancer patients.

Suppression of Oral Carcinoma Oncogenic Activity by microRNA-203 via Down-regulation of SEMA6A.

The purpose of this study was to elucidate the molecular mechanism underlying regulation of semaphorin-6A (SEMA6A) involving microRNA-203 (miR-203) as a tumor suppressor in YD-38 human oral cancer cells.

The Role of Toll Like Receptors (TLRs) in Oral Carcinogenesis.

Oral cancer accounts for 10% of head and neck tumors. Despite the recent advancements in surgical techniques, as well as in chemo- and radiotherapy therapeutic protocols, survival rates for oral cancer patients have not improved significantly in the last decades. Recently, toll like receptors (TLRs) have been described as promoters of cell proliferation, invasiveness, and angiogenesis in a variety of cancers. The aim of this review is to identify how TLRs participate in oral carcinogenesis in order to evaluate their biological relevance. Data revealed that some TLRs participate in oral carcinogenesis since TLR5 and TLR9 promote tumor growh, whereas TLR3 is closely involved to anti-cancer properties. They represent a promising alternative for oral cancer therapy. However, TLR2, TLR4 and TLR7 need further investigation, since current data are not sufficient to conclude about their role. Certainly, such data will contribute to new scientific knowledge, which will be incorporated to the preventive actions and therapeutic protocols for oral cancer patients suffering from this devasting disease.

Do Dental X-Rays Induce Genotoxicity and Cytotoxicity in Oral Mucosa Cells? A Critical Review.

Dental X-rays are widely used in clinical practice, since the technique is an important approach for diagnosing diseases in dental and periodontal tissues. However, it is widely known that radiation is capable of causing damage to cellular systems, such as genotoxicity or cytotoxicity. Thus, the aim of this review was to present a critical analysis regarding the studies published on genotoxicity and cytotoxicity induced by dental X-rays in oral mucosa cells. Such studies have revealed that some oral cell types are more sensitive than others following exposure to dental X-rays. Certainly, this review will contribute to a better understanding of this matter as well as to highlighting perspectives for further studies. Ultimately, such data will promote better safety for both patients and dental professionals.

Human Papillomavirus and Potentially Relevant Biomarkers in Tonsillar and Base of Tongue Squamous Cell Carcinoma.

Human papillomavirus (HPV)-positive tonsillar- and base of tongue cancer is increasing epidemically and has much better outcome than corresponding HPV-negative cancer and most other head and neck cancers with around 80% 3-year disease free survival with conventional radiotherapy and surgery. Consequently, most HPV-positive cancer patients may not require the intensified chemoradiotherapy given to many head and neck cancer patients and would, with tapered treatment, avoid several severe side-effects. Moreover, intensified therapy has not improved survival and treatment alternatives are needed. To identify patients eligible for tapered or targeted therapy, additional biomarkers are required. Several studies have, therefore, focused on finding predictive markers, some of which are also potentially targetable. To conclude, better-tailored therapy, either as tapered or targeted, is important for increasing numbers of patients with HPV-positive tonsillar- and base of tongue cancer. This review deals with some of these issues and presents some promising markers.

The Lower Seven-Eighths.

Do you know this syndrome? Heerfordt-Waldenström syndrome.

Heerfordt-Waldenström syndrome is a rare subacute variant of sarcoidosis, characterized by enlargement of the parotid or salivary glands, facial nerve paralysis and anterior uveitis. Granulomas with a peripheral lymphocyte deficit are found in the anatomic pathology of affected organs. It is normally self-limiting, with cure achieved between 12 and 36 months, but some prolonged cases have been reported. Diagnosis of the syndrome is clinical, and treatment depends on the degree of systemic impairment. Oral corticosteroids represent the first line treatment option. The mortality rate ranges between 1 and 5% of cases.

Behçet's disease: review with emphasis on dermatological aspects.

Behçet's disease is a systemic vasculitis characterized by attacks of acute inflammation, which can affect almost every vascularized area of the body. There is a close correlation between the geographical distribution of HLA-B51 and its prevalence. In the etiopathogenesis there are indications of genetic susceptibility associated with environmental influence. Among the involved genes are those that encompass innate and adaptive immunities. Polymorphisms and epistatic interactions in several genes are described, as well as the presence of imbalance lineage between HLA-B51 and A (MICA). Herpes simplex and Streptococcus sanguinis may be important extrinsic factors. An increase of Th1 response and of IL-21 is observed. The production of IL-21 is positively related to Th17 cells and negatively to T-regs. The mucocutaneous manifestations are Behcet´s disease markers, and their earlier onset indicates a worse prognosis. Recurrent oral ulcers have varied sizes and arrangements, genital ulcers are recurrent, leaving scars, skin lesions are multivaried, and pathergy, although not so frequent, is important for the diagnosis. There are numerous attempts to validate indexes that can evaluate the disease activity and among them the Mucocutaneous Activity Index. This is a specific score that can help with therapeutic decisions and to reduce morbidity, but still lacks validation. The clinical manifestations of other organs are described as well as treatment options.

The Horizontal Myocutaneous Infrahyoid Island Flap for Soft-Tissue Head and Oral Reconstruction: Step-by-Step Video Description.

A clinical case is presented of a 70-year-old woman suffering from a right hemilingual epidermoid carcinoma. A step-by-step video description of the regional infrahyoid island flap is presented and narrated. Long-term results at 2 months in terms of aesthetics and function at the recipient and donor sites are excellent.

Impact of a Cleft and Craniofacial Center on an Academic Health System.

The contributions of all physician specialties and ancillary services involved in cleft and craniofacial center care must be evaluated to fairly assess the financial impact of a cleft and craniofacial center. The authors hypothesized that the cleft and craniofacial center generates profitable downstream productivity for the academic health system.

Reinforcing the Mucoperiosteal Pocket with the Scarpa Fascia Graft in Secondary Alveolar Bone Grafting: A Retrospective Controlled Outcome Study.

Secondary alveolar bone grafting is the gold standard for the treatment of alveolar clefts in cleft lip and palate patients. The authors present a modified method using a Scarpa fascia graft that is placed deep into the mucoperiosteal pocket for watertight sealing of the bone graft chamber and limiting the graft position to the alveolar region for bony stability and tooth support. The outcome was assessed for clinical success in terms of bone graft stability and infection rate.

Three-Dimensional Cone Beam Computed Tomography Volumetric Outcomes of rhBMP-2/Demineralized Bone Matrix versus Iliac Crest Bone Graft for Alveolar Cleft Reconstruction.

Recent studies indicate that recombinant human bone morphogenetic protein-2 (rhBMP-2) in a demineralized bone matrix scaffold is a comparable alternative to iliac bone autograft in the setting of secondary alveolar cleft repair. Postreconstruction occlusal radiographs demonstrate improved bone stock when rhBMP-2/demineralized bone matrix (DBM) scaffold is used but lack the capacity to evaluate bone growth in three dimensions. This study uses cone beam computed tomography to provide the first clinical evaluation of volumetric and density comparisons between these two treatment modalities.

A Comparative Study of the Aesthetic Outcome of Two Techniques for Unilateral Complete Cleft Lip Repair.

Cleft lip repair aims to create symmetric nasolabial morphology with minimal scarring. Poor aesthetic outcomes may have damaging psychosocial implications. Determining the optimal method of recreating lip symmetry is a major goal of applied cleft clinical research. This study aims to determine whether subjective assessment could differentiate aesthetic outcome between two surgeons who use two different surgical techniques for unilateral cleft lip repair.

Long-term outcome of percutaneous balloon compression for trigeminal neuralgia patients elder than 80 years: A STROBE-compliant article.

This article evaluates the long-term outcome of percutaneous balloon compression (PBC) for trigeminal neuralgia (TN) patients elder than 80 years. A total of 138 elderly patients aged above 80 years with primary TN, who were admitted to Neurosurgery Department, Hangzhou First People's Hospital from January 2007 to December 2011 for PBC treatment, were retrospectively analyzed in this study. The postoperative cure rate of immediate pain was 98.6% (Barrow Neurological Institute [BNI] classes I, II); according to the follow-up, the pain cure rates at 1, 2, 3, 4, and 5 years after surgery were 93.5%, 90.4%, 84.7%, 80.4%, and 72.9%, respectively. In our group, postoperative diplopia was reported in 1 case, masticatory muscle weakness in 3 cases, and herpes labialis in 19 cases. A total of 100% of pain-cured patients exhibited facial numbness and facial hypoesthesia. No serious complications occurred in this group of patients. PBC is an effective and safe procedure for TN treatment and can be employed as the preferred regimen for elderly TN patients aged above 80 years in poorer physical condition.

Botulinum toxin in the treatment of trigeminal neuralgia: 6-Month follow-up.

Botulinum toxin type-A (BTX-A) has been successfully utilized to treat trigeminal neuralgia. In this study, through the use of a new technique, the efficacy of the injection of BTX-A to the maxillary and mandibular nerves was evaluated.

Anti-interferon-γ autoantibody-associated disseminated Mycobacterium abscessus infection mimicking parotid cancer with multiple metastases: A case report.

Among the nontuberculous mycobacteria, Mycobacterium abscessus is a common cause of skin, soft tissue, and bone infections. However, disseminated M. abscessus infection that mimics cancer metastasis with an underlying relatively immunocompetent condition has rarely been reported.

Orofacial granulomatosis: A case report of three cases may be caused by apical periodontitis.

Orofacial granulomatosis (OFG) is a rare disease characterized by noncaseating granulomatous inflammation. The most common clinical presentation is persistent swelling of the soft tissues in the oral and maxillofacial regions. The precise cause of OFG is unknown. Corticosteroids are the first-line and best treatment, but there is lack of uniform treatment prescription and standard. It is important to identify the pathogen in order to improve treatment specificity.

Rapid functional analysis of computationally complex rare human IRF6 gene variants using a novel zebrafish model.

Large-scale sequencing efforts have captured a rapidly growing catalogue of genetic variations. However, the accurate establishment of gene variant pathogenicity remains a central challenge in translating personal genomics information to clinical decisions. Interferon Regulatory Factor 6 (IRF6) gene variants are significant genetic contributors to orofacial clefts. Although approximately three hundred IRF6 gene variants have been documented, their effects on protein functions remain difficult to interpret. Here, we demonstrate the protein functions of human IRF6 missense gene variants could be rapidly assessed in detail by their abilities to rescue the irf6 -/- phenotype in zebrafish through variant mRNA microinjections at the one-cell stage. The results revealed many missense variants previously predicted by traditional statistical and computational tools to be loss-of-function and pathogenic retained partial or full protein function and rescued the zebrafish irf6 -/- periderm rupture phenotype. Through mRNA dosage titration and analysis of the Exome Aggregation Consortium (ExAC) database, IRF6 missense variants were grouped by their abilities to rescue at various dosages into three functional categories: wild type function, reduced function, and complete loss-of-function. This sensitive and specific biological assay was able to address the nuanced functional significances of IRF6 missense gene variants and overcome many limitations faced by current statistical and computational tools in assigning variant protein function and pathogenicity. Furthermore, it unlocked the possibility for characterizing yet undiscovered human IRF6 missense gene variants from orofacial cleft patients, and illustrated a generalizable functional genomics paradigm in personalized medicine.

The mouth of patients with acromegaly.

Orofacial changes are frequent in acromegaly. Their evolution is slowly progressive. The lips (everted and thickened), the mandibular morphology (prognathism), the tongue (macroglossia), the soft palate and the uvula (increased and thickened), the parodontis (gingival hyperplasia, paradontitis), the teeth (increased interdental spaces, hypercementosis, increased dental mobility, multiple tooth loss) are concerned. Functional consequences are significant (obstructive sleep apnea syndrome, malocclusion, pain of the oral maxillofacial area, decrease of the quality of life). They are rarely noticed as the first symptoms of the disease and rarely responsible for the diagnosis of acromegaly because of a progressive development over a long period of time, and because of the low prevalence of the disease which can be unknown by dentists and dental surgeons. When patients are cured or well-controlled, abnormalities of soft tissues improve but are not always completely reversible and bone enlargement remain unchanged. If any corrective surgical procedures are to be performed, this should be carried out only after normalization of GH and IGF I levels.

New Evidence Supporting Cyclosporine Efficacy in Epidermal Necrolysis.

Sixty years after its original description by Sir Alan Lyell, epidermal necrolysis (from Stevens-Johnson syndrome to toxic epidermal necrolysis) seems finally amenable to a specific treatment in addition to essential symptomatic measures in specialized settings. A recently published systematic review and an article by Gonzales-Herrada et al. strongly suggest that cyclosporine is effective in reducing the risk of death.

Qualitative study: the experience and impact of living with Behcet's syndrome.

Behcet's syndrome is a rare chronic multisystemic vasculitis of unknown aetiology, is unpredictable and can cause life-threatening complications. This qualitative study aims to explore the experiences of patients living with Behcet's syndrome in New Zealand.

Corticosteroids for treatment of sore throat: systematic review and meta-analysis of randomised trials.

Objective To estimate the benefits and harms of using corticosteroids as an adjunct treatment for sore throat.Design Systematic review and meta-analysis of randomised control trials.Data sources Medline, Embase, Cochrane Central Register of Controlled Trials (CENTRAL), trial registries up to May 2017, reference lists of eligible trials, related reviews.Study selection Randomised controlled trials of the addition of corticosteroids to standard clinical care for patients aged 5 or older in emergency department and primary care settings with clinical signs of acute tonsillitis, pharyngitis, or the clinical syndrome of sore throat. Trials were included irrespective of language or publication status.Review methods Reviewers identified studies, extracted data, and assessed the quality of the evidence, independently and in duplicate. A parallel guideline committee (BMJ Rapid Recommendation) provided input on the design and interpretation of the systematic review, including the selection of outcomes important to patients. Random effects model was used for meta-analyses. Quality of evidence was assessed with the GRADE approach.Results 10 eligible trials enrolled 1426 individuals. Patients who received single low dose corticosteroids (the most common intervention was oral dexamethasone with a maximum dose of 10 mg) were twice as likely to experience pain relief after 24 hours (relative risk 2.2, 95% confidence interval 1.2 to 4.3; risk difference 12.4%; moderate quality evidence) and 1.5 times more likely to have no pain at 48 hours (1.5, 1.3 to 1.8; risk difference 18.3%; high quality). The mean time to onset of pain relief in patients treated with corticosteroids was 4.8 hours earlier (95% confidence interval -1.9 to -7.8; moderate quality) and the mean time to complete resolution of pain was 11.1 hours earlier (-0.4 to -21.8; low quality) than in those treated with placebo. The absolute pain reduction at 24 hours (visual analogue scale 0-10) was greater in patients treated with corticosteroids (mean difference 1.3, 95% confidence interval 0.7 to 1.9; moderate quality). Nine of the 10 trials sought information regarding adverse events. Six studies reported no adverse effects, and three studies reported few adverse events, which were mostly complications related to disease, with a similar incidence in both groups.Conclusion Single low dose corticosteroids can provide pain relief in patients with sore throat, with no increase in serious adverse effects. Included trials did not assess the potential risks of larger cumulative doses in patients with recurrent episodes of acute sore throat.Systematic review registration PROSPERO CRD42017067808.

Modeling of US Human Papillomavirus (HPV) Seroprevalence by Age and Sexual Behavior Indicates an Increasing Trend of HPV Infection Following the Sexual Revolution.

The United States has experienced an increase in the incidence of human papillomavirus (HPV)-related cancers that are not screen-detectable. It has been hypothesized, but not directly demonstrated, that this is due to increasing HPV prevalence in the unvaccinated population.

Squamous-Cell Carcinoma of the Mouth.

Targeting the Myofibroblastic Cancer-Associated Fibroblast Phenotype Through Inhibition of NOX4.

Cancer-associated fibroblasts (CAFs) are tumor-promoting and correlate with poor survival in many cancers, which has led to their emergence as potential therapeutic targets. However, effective methods to manipulate these cells clinically have yet to be developed.

Long noncoding RNA EGFR-AS1 mediates epidermal growth factor receptor addiction and modulates treatment response in squamous cell carcinoma.

Targeting EGFR is a validated approach in the treatment of squamous-cell cancers (SCCs), although there are no established biomarkers for predicting response. We have identified a synonymous mutation in EGFR, c.2361G>A (encoding p.Gln787Gln), in two patients with head and neck SCC (HNSCC) who were exceptional responders to gefitinib, and we showed in patient-derived cultures that the A/A genotype was associated with greater sensitivity to tyrosine kinase inhibitors (TKIs) as compared to the G/A and G/G genotypes. Remarkably, single-copy G>A nucleotide editing in isogenic models conferred a 70-fold increase in sensitivity due to decreased stability of the EGFR-AS1 long noncoding RNA (lncRNA). In the appropriate context, sensitivity could be recapitulated through EGFR-AS1 knockdown in vitro and in vivo, whereas overexpression was sufficient to induce resistance to TKIs. Reduced EGFR-AS1 levels shifted splicing toward EGFR isoform D, leading to ligand-mediated pathway activation. In co-clinical trials involving patients and patient-derived xenograft (PDX) models, tumor shrinkage was most pronounced in the context of the A/A genotype for EGFR-Q787Q, low expression of EGFR-AS1 and high expression of EGFR isoform D. Our study reveals how a 'silent' mutation influences the levels of a lncRNA, resulting in noncanonical EGFR addiction, and delineates a new predictive biomarker suite for response to EGFR TKIs.

A Comparative Analysis of Serum IgG4 Levels in Patients With IgG4-Related Disease and Other Disorders.

Elevated serum IgG4 levels are an important hallmark for diagnosing IgG4-related disease (IgG4-RD) but can also be found and reported in other diseases. The present study intended to compare the serum IgG4 levels in both IgG4-RD and non-IgG4-RD and determine the serum IgG4 levels in patients with IgG4-RD before and after glucocorticoid therapy.

Reply to: "Prognosis and management of Stevens-Johnson syndrome and toxic epidermal necrolysis".