Search results for "CAS"
showing 10 items of 26112 documents
Oral lichen planus and oral lichenoid lesions; a critical appraisal with emphasis on the diagnostic aspects
2009
Oral lichen planus (OLP) has a prevalence of approximately 1%. The etiopathogenesis is poorly understood. The annual malignant transformation is less than 0.5%. There are no effective means to either predict or to prevent such event. Oral lesions may occur that to some extent look like lichen planus but lacking the characteristic features of OLP, or that are indistinguishable from OLP clinically but having a distinct cause, e.g. amalgam restoration associated. Such lesions are referred to as oral lichenoid lesions (OLLs). The management of OLP and the various OLLs may be different. Therefore, accurate diagnosis should be aimed at.
Treatment of oral lichen planus with photodynamic therapy mediated methylene blue: a case report.
2006
Oral lichen planus (OLP) is a common chronic disease of uncertain origin. Many patients with OLP are refractory to all available therapies. The photodynamic therapy (PDT) was used as a possible alternative method in the treatment of lichen planus. Two patients with five oral lichen planus lesions were treated using topical PDT mediated by methylene blue (MB-PDT). The patients were followed up on sessions 3, 7, 15 days and 1 to 9 months after PDT. Clinical improvement was achieved in four lesions. Two lesions showed complete remission, and another two lesions had about 50% clinically improvement 3-9 months after a single session of PDT. No response detected in one lesion. MB-PDT blue seems t…
Inflammatory response elements, glycan, and proteome profiles as salivary biomarkers for the early diagnosis of OSCC
2021
El cáncer oral, sobre todo el, carcinoma oral de células escamosas (COCE), es la neoplasia maligna más común en la cavidad oral que se caracteriza por un mal pronóstico y una baja tasa de supervivencia, cuando se diagnostica en estadios avanzados. Puede ser tratado de forma efectiva si se detecta en estadios iniciales, mejorando el pronóstico. Por tanto, tras la prevención, el diagnóstico precoz se ha convertido en el principal objetivo en el manejo del cáncer oral, dado su impacto positivo en la supervivencia y calidad de vida de estos pacientes. A menudo, los escasos síntomas iniciales pasan desapercibidos y la enfermedad se descubre en fases avanzadas, por lo que se requiere mejorar el d…
Cornelia de Lange syndrome: A case report
2007
Cornelia de Lange is a genetic syndrome which affects between 1/10.000 and 1/60.000 neonates, but its genetic bases are still not clear. Its principal clinical characteristics are the delay in growth and development, hirsute, structural anomalies in the limbs and distinctive facial characteristic. Dental problems are frequent and include: ogival palate, micrognathia, dental malalignment, delayed teething, microdontic teeth, periodontal disease and dental erosion produced by gastric reflux. Discussed is the case of a 29 year old patient affected by the syndrome in question, which presents the principal clinical characteristics. The patient?s general state of health is acceptable, without car…
Agenesias dentarias: en busca de las alteraciones genéticas responsables de la falta de desarrollo
2004
En conjunto, las agenesias dentarias son la malformación cráneofacial más frecuente. Su prevalencia alcanza el 20% en la dentición permanente, y su expresión puede variar desde la ausencia de una sola pieza, generalmente un tercer molar, hasta la de toda la dentición. En la pasada década, los estudios de ligamiento genético y biología molecular han permitido identificar algunas mutaciones responsables de distintos patrones de agenesias dentarias sindrómicas y no sindrómicas. Dichas mutaciones se encuentran en genes clave para el desarrollo de la dentición, como los que codifican a los factores de transcripción MSX1, PAX9 y PITX2, la proteína de señalización EDA y su receptor EDAR. Los estud…
Metastatic tumors to the jaws: A report of eight new cases
2006
Purpose: The purpose of the article is to present 8 new cases of metastatic tumors occurring in the jawbones, their clinical features , diagnostic workup and management. Patients and methods: The records of 8 patients with metastatic jaw lesions were reviewd. Demographic data, presenting symptoms, primary tumor site, radiographic findings, bone scintigraphy , histopathology and clinical management were analyzed. Results: The patients , ranged in age from 44 to 80 years, with a mean of 64.5 years. The primary malignant sites were: the lung , the breast , the rectum, the thyroid, the uterus and the parotid gland . The mandible was the site of oral involvement in seven cases and the maxilla in…
Odontogenic calcificant cystic tumor : a report of two clinical cases
2007
Odontogenic Calcificant Cystic Tumor (OCCT) is an infrequent injury. It arises from odontogenic epithelial rests present in the maxilla, jaw or gum. Gorlin and col. described the OCCT for first time as an own pathological entity in 1962. Clinically, the OCCT represents 1% of the odontogenic injuries. It is possible to be found from the first decade to the eighth decade. It affects in same proportion the maxilla and the jaw, being the most common in the dented zones, with greater incidence in the first molar area. Two case reports of OCCT in two different ages, both in female individuals, one at 5 years old and the other at 35 years old are presented. Enucleation of the tumor was the treatme…
Use of cbct in the endodontic management of a second mandibular premolar with three roots : clinical case
2022
Background Reports and studies on dental anatomy describe variations in the morphology, number and shape of the roots and root canals, with the mandibular premolars being one of the dental groups with special complexity. In the bibliographic review published on the morphology of mandibular second premolars, the presence of three roots being extremely rare, finding differences according to the ethnic group studied. The aim of this case is to describe an unusual case of the anatomy of a mandibular second premolar. Material and Methods A 59-year-old male patient presented with pain in the right mandibular second premolar. After taking the clinical history and the examination, he was diagnosed …
Multiple supernumerary teeth not associated with complex syndromes: a retrospective study
2009
Objectives: To determine the epidemiology and describe the clinical and radiographic characteristics, the type of treatment, and the possible delayed appearance of new supernumerary teeth in patients with non-syndromic multiple hyperdontia. Patients and Methods: We conducted a small retrospective observational study of 8 patients diagnosed with nonsyndromic multiple hyperdontia. Multiple hyperdontia not associated to complex syndromes was defined as apparently generally healthy patients with one or more supernumerary teeth in two or more areas. Results: The average patient age was 16.23 years; males predominated (3:1). Multiple hyperodontia with a minimum of 2 and a maximum of 9 supernumera…
Prevalence of intraoperative and postoperative iatrogenic mandibular fractures after lower third molar extraction: A systematic review
2022
Background The surgical extraction of the lower third molars is one of the most common procedures in oral surgery, and this surgical operation can cause intra- and postoperative complications such as pain, trismus, bleeding, infection, oedema, inferior alveolar nerve injuries, displacement of teeth to neighbouring spaces and mandibular fractures. The aim of this systematic review is to report the prevalence of mandibular fractures that occur intra- and postoperatively in patients who have undergone surgical removal of the lower third molar. Material and Methods An electronic database search for articles published in Cochrane, PubMed (MEDLINE) and Scopus was conducted using the key words “Mo…