Edema and gingival bleeding in anterior region have a negative influence on quality of life of adolescents

Abstract The aim of the present study was to verify if clinical signs of gingivitis such as color changes, edema, and bleeding in the anterior region influence the OHRQoL of adolescents. We followed a cross-sectional convenience sample of 67 adolescents aged 11 to 16 years receiving dental treatment at the Federal University of Santa Maria (UFSM), in southern Brazil. The participants were evaluated for the following clinical variables: edema, gingival color alteration, and marginal bleeding of the gingival tissues, collected at 6 sites per tooth in the anterior region of the mouth. Socioeconomic variables were collected through questionnaires and OHRQoL was evaluated through the Brazilian version of the Children Perception Questionnaire (CPQ 11-14) short form. A Poisson regression model was used to verify associations between clinical variables and general CPQ11-14 scores. In the unadjusted analysis, edema, color alterations, and marginal bleeding in the anterior region were associated with worse scores of OHRQoL. Edema and marginal bleeding remained associated after adjusting for clinical and sociodemographic variables. Adolescents with higher levels of marginal bleeding and edema in the anterior region had higher mean CPQ11-14 scores. Therefore, the presence of bleeding and gingival edema in the anterior region can be considered clinical signs of gingivitis that are associated with a worse OHRQoL in adolescents.

Influence of dental exposure to oral environment on smear layer removal and collagen exhibition after using different conditioning agents

Although in vitro studies have shown encouraging results for root surface conditioning with demineralizing agents, in vivo studies have failed to show its benefits in periodontal healing. This can be attributed to several factors, among which, the hypermineralization of dental surface. Therefore, this in vitro study compared, using scanning electron microscopy (SEM), the effect of root surface conditioning with different conditioners (1% and 25% citric acid, 24% EDTA and 50 mg/mL tetracycline hydrochloride) in impacted teeth and in teeth that had their roots exposed to the oral environment. One trained examiner assessed the SEM micrographs using a root surface modification index. There was a tendency of more root surface modification in the group of impacted teeth, suggesting that the degree of root mineralization influences its chemical demineralization.

Apesar de estudos in vitro terem demonstrado resultados favoráveis ao condicionamento da superfície radicular com agentes desmineralizantes, estudos in vivo não mostraram seus benefícios na cicatrização periodontal. Isto pode ser atribuído a vários fatores, entre os quais, a hipermineralização da superfície dental. Portanto, este estudo in vitro comparou, usando microscopia eletrônica de varredura, o efeito do condicionamento da superfície radicular com diferentes condicionadores (1% e 25% de ácido cítrico, EDTA 24% e 50 mg/mL de cloridrato de tetraciclina) em dentes impactados e dentes que tinham suas raízes expostas ao meio bucal. Um examinador treinado avaliou as microscopias eletrônicas de varredura utilizando um índice de modificação da superfície radicular. Houve uma tendência de maior modificação da superfície radicular no grupo de dentes impactados, sugerindo que o grau de mineralização da raiz influencia a sua desmineralização química.

E-cadherin and CD1a expression in gingival epithelium in periodontal health, disease and post-treatment.

Background: Epithelial integrity is important for maintenance of periodontal health. It is not fully known if non-surgical periodontal therapy is capable of recreating the epithelial barrier in its functional state. Patients and Methods: Sixty-five patients (31 males and 34 females) were included in the study. They were divided into group A (healthy gingiva 16 patients), group B (gingivitis 17 patients), group C (periodontitis 17 patients), and group D (post-treatment 15 patients). Gingival samples were collected and immunohistochemical study was done using E-cadherin and CD1a antibody. Statistical analysis was done using analysis of variance (ANOVA), followed by Tukey-Kramer multiple comparison test for CD1a and Tukey's highly significant difference (HSD) test for E-cadherin. Result: There was a statistically significant difference (P<0.001) in the expression of E-cadherin between healthy (1.846±0.555), gingivitis (1.100±0.994), and periodontitis group (0.700±0.483). Similarly, there was a statistically significant difference (P<0.001) in the expression of CD1a between healthy (75.70±3.09), gingivitis (42.53±3.09), and periodontitis group (29.07±3.08). However, the expression of E-cadherin (1.242±0.653) and CD1a in post-treatment samples (52.18±2.90) was lower with no statistically significant difference when compared to health. Discussion: The significant reduction in E-cadherin and CD1a levels in periodontal disease when compared to health could possibly be a result of invasion by the periodontopathogens and its subsequent sequel. Although, the post-treatment samples showed significant improvement when compared to disease, the reduction in E-cadherin and CD1a levels when compared to gingival health suggests that the epithelial barrier was not yet fully established in its functional state.

Atención estomatológica integral a pacientes hematológicos / Integral dentistry attention to hematologic patients

Las enfermedades hematológicas, en muchas ocasiones, se presentan como una urgencia estomatológica, por lo que es nuestro propósito, que el profesional sepa relacionar ciertas manifestaciones clínicas con dichas patologías para, a través de una correcta anamnesis, examen clínico y complementario, diagnosticar y aplicar un adecuado tratamiento que responda a las necesidades de la enfermedad del paciente. Las principales enferme-dades hematológicas son: Alteración de los eritrocitos, anemias carenciales, megaloblásticas y drepanocitosis, anemias por fallo medular agrupan a las leucemias, aplasia medular y mieloma múltiple; alteraciones en leucocitos, pueden ser cualitativas como el síndrome del leucocito perezoso y el de Beguez-Chediak-Higashi, o cuantitativas, como las neutropenias y leucemias; alteraciones en el sistema mononuclear-macrofágico y los histiocitos, la histiocitosis a células de Langerhans; alteraciones de la hemostasia, púrpuras y hemofilias. Las principales manifestaciones bucales consisten en las gingi-vorragias, úlceras, sepsis, hemorragias e inflamación de las encías.

Hematological diseases most of the times are an Odontology Urgency, that's why odontologists must know how to relate some clinic oral signs with these diseases and get, through a good questionnaire, clinic inspection and complementary test, a diagnosis and under the right treatment in agreement with these patient's necessities. The main hematological diseases which have odontological features are: erythrocyte diseases, leukocyte diseases and platelets diseases. In the erycthrocyte diseases the more frecuently pathologies are the nutritional anemias for iron or B12 vitamin deficiency, the sickle cell anemias, the bone marrow failure anemias for example: the leukemias, the aplastic anemias and multiple myeloma; in the leukocyte diseases we studied the cualitative and cuantitive alterations, for example: neutropenias, leukemias, the Beguez- Chediak-Higashi syndrome and the Langerhans cells Hystocytosis. In the platelets diseases we studied hemophylias, purpures and others hemostasy diseases. The main oral signs are: gums hemorrages, sores, swelling gums and halytosis.