Gingival lesions diagnosed as pemphigus vulgaris in an adolescent. Case report

Desquamative gingivitis (DG) is a fairly common disorder in which the gingivae show chronic desquamation. Originally considered to be related to hormonal changes at menopause, since many of the patients are middle-aged women, DG is now recognized to be mainly a manifestation of a number of disorders ranging from vesiculobullous diseases to adverse reactions to a variety of chemicals or allergens. Desquamative gingivitis can be an important early clinical manifestation of serious systemic diseases such as pemphigus vulgaris. The authors present a case that illustrates the importance of a specific diagnosis in patients with desquamative gingival lesions previously treated for 6 months as classical gingivitis. Gingival biopsy showed histologic patterns typical of pemphigus vulgaris. The patient was treated with systemic and topical corticosteroids in association with miconazole the patient is now under control with low-close systemic corticosteroids. Proper recognition of lesions in the oral mucosa leads, in several situations, to an early diagnosis of a systemic disease.

Effect of Er : YAG and diode lasers on the adhesion of blood components and on the morphology of irradiated root surfaces

Objectives: the aim of this study was to evaluate in vitro, by scanning electron microscopy (SEM), the adhesion of blood components on root surfaces irradiated with Er:YAG (2.94 mu m) and GaAlAs Diode (808 nm) lasers and the effects on the morphology of irradiated root surfaces.Methods: One hundred samples of human teeth were obtained. They were previously planed and scaled with manual instruments and divided into five groups of 20 samples each: G1 (control group) - absence of treatment; G2 - Er:YAG laser (7.6 J/cm(2)); G3 - Er:YAG laser (12.9 J/cm(2)); G4 - Diode laser (90 J/cm(2)) and G5 - Diode laser (108 J/cm(2)). After these treatments, 10 samples of each group received a blood tissue but the remaining 10 did not. After laboratory treatments, the samples were obtained by SEM, the photomicrographs were analysed by the score of adhesion of blood components and the results were statistically analysed (Kruskall-Wallis and Mann-Whitney test).Results: In relation to the adhesion of blood components, the study showed no significant differences between the control group and the groups treated with Er:YAG laser (p = 0.9633 and 0.6229). Diode laser radiation was less effective than control group and Er:YAG laser radiation (p < 0.01).Conclusion: None of the proposed treatments increased the adhesion of blood components in a significant way when compared to the control group. Although the Er:YAG laser did not interfere in the adhesion of blood components, it caused more changes on the root surface, whereas the Diode laser inhibited the adhesion.

Clinical evaluation of tinnitus in patients with sleep bruxism: prevalence and characteristics

Evaluation of the prevalence and characteristics of tinnitus in a Brazilian series of sleep bruxism patients. In this descriptive study, 100 patients (80 women and 20 men) were selected through the self-report of grinding teeth during sleep, confirmed by room mate or family member. They were evaluated according to a systematized approach: a questionnaire for orofacial pain and the Portuguese version of the Research Diagnostic Criteria for Temporomandibular Disorders. The patients were divided into two groups: group A, 54 patients with complaint of tinnitus and group B, 46 patients without tinnitus complaint. The mean age was 37.85 (13-66 years) and 34.02 years (20-59 years), respectively, for groups A and B (P = 0.1164). There was statistically significant difference between the two groups, with higher prevalence for the group A, in relation to: presence of chronic facial pain (P = 0.0007); number of areas painful to palpation in the masticatory and cervical muscles (P = 0.0032); myofascial pain in the masticatory muscles (P = 0.0003); absence of teeth without prosthetic replacement (P = 0.0145) and indices of depression (P = 0.0234). Structural alterations of the TMJ, like disc displacement and vertical dimension loss did not differ for the two groups. Tinnitus frequency was higher in patients with sleep bruxism and chronic facial pain. Myofascial pain, number of areas painful to palpation in the masticatory and cervical muscles, higher levels of depression and tooth absence without prosthetic replacement were more frequent in the group with tinnitus.

Structural and microstructural characterization of SrBi2(Ta0.5Nb0.48W0.02)(2)O-9 powders

SrBi2(Ta0.5Nb0.48W0.02)(2)O-9 powders (SBTN-W) were prepared by the polymeric precursor method. The influence of annealing temperature on the phase formation and specific surface area was evaluated. TG/DTA associated with X-ray diffraction (XRD) analyses showed the formation of perovskite phase at around 500-600 degrees C. An orthorhombic structure with A21am space group was identified by Rietveld refinement. BET analysis revealed that the specific surface area reduces with increasing thermal annealing. SEM micrographies showed grains in an almost-spherical morphology with the presence of agglomerates. (C) 2006 Elsevier B.V. All rights reserved.

PLANINDEX: 02-001

Contiene resumenes bibliograficos de documentos sobre planificacion y desarrollo en America Latina, recogidos y procesados en el marco del Sistema de Informacion para la Planificacion en America Latina y el Caribe (INFOPLAN).

O Sítio Arqueológico Lagoa São Paulo - 02: uma Análise Geoarqueológica de uma Ocupação Pré-Histórica do Oeste Paulista

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Inovações do Código de Processo Civil e seus reflexos no Direito Processual do Trabalho: uma análise crítica das leis n.10352/01, n.10358/01, n.10444/02, n.11187/05, 11232/05, n.11276/06, n.11277/06, n.11280/06 e n.11382/06

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Deficiência auditiva referida em inquérito de saúde no município de Botucatu, ISA-SP, 2001-02

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

β-glucanas de isolados fúngicos do gênero Botryosphaeria: produção, caracterização química e atividade anticoagulante

Pós-graduação em Ciências Biológicas (Microbiologia Aplicada) - IBRC

Determinação voltamétrica de ácido fólico em superfície de eletrodo sólido com filme intermetálico 'AG IND.2''HG IND.3.02': aplicação em sucos de frutas in natura e industrializados

Pós-graduação em Química - IQ

Effect of 808 nm low-level laser therapy in exercise-induced skeletal muscle fatigue in elderly women

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Event activity dependence of (nS) production in=5.02 TeV pPb and=2.76 TeV pp collisions

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)