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Objective: To determine if 2-DeNT Oral Topical Powder is an effective treatment for traumatic oral ulcers. Materials and Methods: Of the 46 patients who were randomly allocated, 20 patients from the experimental group and 17 from the placebo control group completed the study. The patients, operators, and evaluators were all blinded. Patients applied the powder twice a day and completed a diary twice a day for 10 days. The diary was used to monitor the size of the lesions and pain levels (using a 10-cm visual analog scale). Results: By day 5, the ulcers in the experimental group had reduced in size by approximately 70%; and ulcers in the control group had reduced in size by 56%. The experimental-group ulcers were significantly (P < .05) smaller than the control-group ulcers from day 5 through day 9. Ulcers in the experimental group were completely resolved by day 8, whereas control-group ulcers were still present on day 10. Patients experienced a significant amount of stimulated pain until the night of day 2 in the experimental group and until the night of day 5 in the control group, but group differences in pain were not statistically significant. Conclusions: The 2DeNT Oral Topical powder was more effective than the placebo powder at accelerating the healing of oral traumatic ulcers. [ABSTRACT FROM AUTHOR]

Purpose In recent years, the treatment of central giant cell granuloma (CGCG) has become focused on the inhibition of osteoclast differentiation and proliferation. Medications that were developed for the treatment of giant cell tumor of bone and bone resorption from metastatic skeletal disease have shown some success in the treatment of CGCG. The present report describes 2 cases of CGCG of the mandible that were treated effectively with subcutaneous denosumab. Materials and Methods Two cases of histologically diagnosed CGCG of the mandible were treated with monthly subcutaneous injections of denosumab 120 mg primarily or after intralesional corticosteroid therapy. Clinical and radiographic follow-ups were recorded over a period of 24 months (case 1) and 15 months (case 2). Results In the 2 cases, progressive radiodensity and osseous regeneration were noted 4 to 6 months after denosumab therapy was initiated. A decrease in lesion size and improvement in bone contour and facial symmetry were seen in the 2 cases. Conclusion The major radiographic, clinical, and histologic responses seen in these 2 cases suggest that denosumab may represent a viable alternative or adjunctive procedure to eliminate or decrease the extent of surgical intervention and morbidity in the treatment of CGCG. Future prospective studies with a larger sample would provide more comprehensive information about the long-term effects and possible adverse side effects of treating CGCG of the jaws with denosumab. [ABSTRACT FROM AUTHOR]

Immunosuppressive therapy for patients diagnosed with rheumatoid arthritis has long been implicated in the development of various neoplastic processes, including leukemia and lymphoma. Methotrexate is a commonly administered antimetabolic medication thought to improve the symptoms of rheumatoid arthritis through its anti-inflammatory effects. Longterm methotrexate therapy and concurrent rheumatoid arthritis have both been independently suggested as risk factors for developing lymphoma. The mechanism has been theorized to be severe immunosuppression and an increased frequency of latent infection with pro-oncogenic viruses, such as the Epstein-Barr virus (EBV). Spontaneous remission of these malignancies has been seen after discontinuation of the methotrexate therapy. In the present study, we report the case of a patient diagnosed with rheumatoid arthritis and treated with methotrexate and prednisone. She developed intraoral ulcerations that histopathologically resembled Hodgkin's lymphoma. [ABSTRACT FROM AUTHOR]

The Fourier transform infrared (FTIR) imaging technique was used in a transmission model for the evaluation of twelve oral hyperkeratosis (HK), eleven oral epithelial dysplasia (OED), and eleven oral squamous cell carcinoma (OSCC) biopsy samples in the fingerprint region of 1800–950 cm−1. A series of 100 µm × 100 µm FTIR imaging areas were defined in each sample section in reference to the hematoxylin and eosin staining image of an adjacent section of the same sample. After outlier removal, signal preprocessing, and cluster analysis, a representative spectrum was generated for only the epithelial tissue in each area. Two representative spectra were selected from each sample to reflect intra-sample heterogeneity, which resulted in a total of 68 representative spectra from 34 samples for further analysis. Exploratory analyses using Principal component analysis and hierarchical cluster analysis showed good separation between the HK and OSCC spectra and overlaps of OED spectra with either HK or OSCC spectra. Three machine learning discriminant models based on partial least squares discriminant analysis (PLSDA), support vector machines discriminant analysis (SVMDA), and extreme gradient boosting discriminant analysis (XGBDA) were trained using 46 representative spectra from 12 HK and 11 OSCC samples. The PLSDA model achieved 100% sensitivity and 100% specificity, while both SVM and XGBDA models generated 95% sensitivity and 96% specificity, respectively. The PLSDA discriminant model was further used to classify the 11 OED samples into HK-grade (6), OSCC-grade (4), or borderline case (1) based on their FTIR spectral similarity to either HK or OSCC cases, providing a potential risk stratification strategy for the precancerous OED samples. The results of the current study support the application of the FTIR-machine learning technique in early oral cancer detection. [ABSTRACT FROM AUTHOR]

Hypercementosis is an abnormal thickening of the cementum. Although the etiology of this condition is uncertain, it occasionally is related to disorders of bone metabolism, including Paget disease and hyperthyroidism. The case presented here illustrates localized idiopathic deposition of excess cementum at the apex of the distal root of a mandibular first molar.

In recent years there has been an overall decrease in cancers of the oral cavity, and a concurrent increase in cancers in specific sites of the posterior oral cavity and oropharynx in the United States. There is increasing evidence that the human papillomavirus may play a role in the development of oropharyngeal squamous cell carcinoma. In this article we review the biology and risk factors associated with HPV and oropharyngeal carcinoma, and recent data suggesting that this type of cancer may be unique in its response to treatment and prognosis.