Dental Caries Susceptibility
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Salivary protein polymorphisms and risk of dental caries: a systematic review
Abstract Dental caries is an oral pathology associated with both lifestyle and genetic factors. The caries process can be influenced by salivary composition, which includes ions and proteins. Studies have described associations between salivary protein polymorphisms and dental caries experience, while others have shown no association with salivary proteins g
Braz. oral res.. Publicado em: 05/06/2017
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2. Effect of high energy X-ray irradiation on the nano-mechanical properties of human enamel and dentine
Abstract Radiotherapy for malignancies in the head and neck can cause common complications that can result in tooth damage that are also known as radiation caries. The aim of this study was to examine damage to the surface topography and calculate changes in friction behavior and the nano-mechanical properties (elastic modulus, nanohardness and friction coef
Braz. oral res.. Publicado em: 15/12/2015
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3. The susceptibility of Streptococcus mutans to antibacterial photodynamic therapy: a comparison of two different photosensitizers and light sources
Streptococcus mutans is the main etiological agent for dental caries. Recently, photodynamic therapy (PDT) has been introduced as a new modality in bacterial decontamination. Objective: This in vitro study was carried out to evaluate the susceptibility of Streptococcus mutans to antibacterial PDT using two different photosensitizers and light sources.
J. Appl. Oral Sci.. Publicado em: 2014-04
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4. Analysis of the association between lactotransferrin (LTF) gene polymorphism and dental caries
OBJECTIVE: The present study evaluated the association between lactotransferrin (LTF) gene polymorphism (exon 2, A/G, Lys/Arg) and dental caries. MATERIAL AND METHODS: A convenience sample of 110 individuals, 12 years old, was divided into: group 1, 48 individuals without caries experience (DMFT=0), and group 2, 62 subjects with caries experience (DMFT>1). D
Journal of Applied Oral Science. Publicado em: 2010-04
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5. Xerostomy, dental caries and periodontal disease in HIV+ patients
We studied xerostomy and its correlation with periodontal and dental cavity diseases in HIV patients, through measurement of salivary flow and through variables such as saliva buffer capacity, salivary pH, periodontal index, MDF index, dental carie risk and risk of periodontal disease. One hundred patients were analyzed. They were distributed into two groups
Brazilian Journal of Infectious Diseases. Publicado em: 2009-02
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6. Influência da irradiação com laser de Er:YAG na resistência ácida dos tecidos dentais / Influence of irradiation with Er:YAG laser on acid resistance of dental tissues
A irradiação dos substratos dentais com laser de Er:YAG, utilizando parâmetros subablativos ou ablativos, gera um efeito térmico nas camadas mais superficiais dos tecidos, podendo levar a alterações morfológicas, estruturais e químicas. A resistência ácida dos tecidos dentais tem sido relacionada às alterações induzidas pela irradiação. Os obj
Publicado em: 2008
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7. Lesões de cárie adjacentes a restaurações de resina composta em molares decíduos e a sua relação com a atividade cariosa da criança
Na dentição decídua, as restaurações adesivas apresentam uma longevidade média de 2 a 3 anos, contudo, muitas vezes, essas restaurações são substituídas antes deste período médio. Dentre os motivos mais prevalentes para substituição de restaurações, a lesão de cárie secundária é o mais freqüentemente citado. Esta dissertação teve como
Publicado em: 2008
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8. Prospective study of immune response in Brazilian children heavily exposed to Streptococcus mutans: influence of specific immune response in infection / Estudo prospectivo da resposta imunologica de crianças brasileiras altamente expostas ao Streptococcus mutans : influencia da especificidade da resposta imune na infeção
Mutans streptococci (MS) are the main pathogens of dental caries. In this study we explored the influence of the muccosal immune system in the initial colonization by MS in children highly exposed to this microorganism. A total of 119 children, who were of 5 to 13 months of age, were enrolled in this prospective study. MS levels of infection were determined
Publicado em: 2006
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9. Salivary immunoglobulin A and serum antibodies to Streptococcus mutans ribosomal preparations in dental caries-free and caries-susceptible human subjects.
Caries-free subjects or individuals with low caries susceptibility exhibited significantly higher (P less than 0.001) levels of naturally occurring salivary immunoglobulin A (IgA) and serum IgG, IgA, and IgM antibodies to a Streptococcus mutans ribosomal preparation than subjects with high caries susceptibility. Absorption of saliva and serum samples with S.
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10. Effect of neonatal thymectomy on dental caries in rats.
The effect of T-cell depletion on susceptibility to dental caries after infection with Streptococcus mutans was studied. Rats were neonatally thymectomized (Tx) and infected with S. mutans 6715 or locally immunized with the homologous organism before infection. The Tx rats uniformly exhibited a higher level of infection with S. mutans and subsequently showed
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11. Amount and avidity of salivary and serum antibodies against Streptococcus mutans in two groups of human subjects with different dental caries susceptibility.
Immunoglobulin A (IgA) and IgG antibodies against Streptococcus mutans K1R and 10449 were measured in serum and in stimulated whole saliva from two groups of naval recruits, representing high or low caries susceptibility. The antibody assays were performed by using the enzyme-linked immunosorbent assay, and the results were expressed by a method able to esti
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12. Effect of immunization on susceptibility to experimental Streptococcus mutans and Streptococcus sanguis endocarditis.
It has been asserted that humoral immunity is an important potentiating factor in pathogenesis of infective endocarditis, in that prior immunization to certain bacteria may predispose the host to endocarditis caused by those organisms. If so, possible future vaccination of humans with streptococcal antigens for the prevention of dental caries might increase