Microradiography
Mostrando 1-12 de 17 artigos, teses e dissertações.
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1. Role of Candida albicans on enamel demineralization and on acidogenic potential of Streptococcus mutans in vitro biofilms
Abstract There is growing evidence that C. albicans is associated with dental caries, but its role on caries development needs to be better clarified. Objective: To evaluate at the hard tissue level the effect of C. albicans on the cariogenic potential of S. mutans biofilms focusing on the mineral profile of induced carious lesions. This study also aimed to
J. Appl. Oral Sci.. Publicado em: 09/09/2019
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2. The in vitro remineralizing effect of CPP-ACP and CPP-ACPF after 6 and 12 weeks on initial caries lesion
Abstract Objective: The aim of this in vitro study was to determine the effects of remineralization promoting agents containing casein phosphopeptide-stabilized amorphous calcium phosphate (CPP-ACP), or CPP-ACP in combination with fluoride (CPP-ACPF) on artificial white spot lesions (WSLs) after 6 and 12 weeks. Methodology: White spot lesions were created
J. Appl. Oral Sci.. Publicado em: 20/05/2019
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3. Comparison between static and semi-dynamic models for microcosm biofilm formation on dentin
Abstract Microcosm biofilm has been applied to induce carious lesions in dentin. However, no study has been done to compare the impact of the type of model for providing nutrients to microcosm biofilm formation on dentin. Objective This study compared the performance of two kinds of models (static and semi-dynamic) on the biofilm formation and the developme
J. Appl. Oral Sci.. Publicado em: 07/01/2019
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4. Analysis of the antimicrobial and anti-caries effects of TiF4 varnish under microcosm biofilm formed on enamel
Abstract Titanium tetrafluoride (TiF4) is known for interacting with enamel reducing demineralization. However, no information is available about its potential antimicrobial effect. Objectives This study evaluated the antimicrobial and anti-caries potential of TiF4 varnish compared to NaF varnish, chlorhexidine gel (positive control), placebo varnish and un
J. Appl. Oral Sci.. Publicado em: 22/02/2018
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5. Effect of 10% fluoride on the remineralization of dentin in situ
ABSTRACT Objective The purpose of this randomized, cross-over, in situ study was to determine the remineralization of demineralized dentin specimens after the application of a 10% fluoride (F-) or a 1% chlorhexidine–1% thymol (CHX–thymol) varnish. Material and Methods Twelve individuals without current caries activity wore removable appliances in the
J. Appl. Oral Sci.. Publicado em: 2015-12
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6. pH-cycling models for in vitro evaluation of the efficacy of fluoridated dentifrices for caries control: strengths and limitations
Despite a plethora of in situ studies and clinical trials evaluating the efficacy of fluoridated dentifrices on caries control, in vitro pH cycling models are still broadly used because they mimic the dynamics of mineral loss and gain involved in caries formation. This paper critically reviews the current literature on existing pH-cycling models for the in v
Journal of Applied Oral Science. Publicado em: 2010-08
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7. Effect of chronic oscillating fluoride doses on dental fluorosis development in rats / Efeito de doses cronicas oscilantes de fluoreto no desenvolvimento de fluorose dental em ratos
O efeito do fluoreto (F) no desenvolvimento de fluorose dental em animais expostos a doses crônicas constantes é bem conhecido, mas não há informações sobre o efeito de doses crônicas oscilantes, o que foi estudado neste trabalho. Além disso, não há estudos comparando diferentes métodos de quantificação de defeito de esmalte induzido pelo F, o q
Publicado em: 2010
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8. Análise da profundidade de desgaste e da perda mineral no esmalte subjacente à microabrasão após técnica microabrasiva.
O principal efeito da microabrasão no esmalte dental é uma erosão significativa. Porém, existe uma lacuna na literatura no que concerne à avaliação validada e reprodutível da profundidade de desgaste na superfície dental natural. OBJETIVOS: Avaliar a profundidade de desgaste e a perda mineral do esmalte dentário resultante da técnica de microabras
Publicado em: 2009
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9. Uso do laser de C O IND. 2 ( lambda =10,6 mu ) na prevenção da carie e erosão dentarias : estudos in vitro / Use of C O IND. 2 laser ( lambda =10,6 mu ) on dental caries and erosio prevention : in vitro estudies
Os efeitos causados pelas modificações promovidas pela irradiação com laser de CO2 podem inibir a desmineralização dos tecidos dentários e podem ser potencializados quando associados ao fluoreto. Apesar de amplo uso do fluoreto e da redução da prevalência de cárie, essa doença ainda acomete grupos de alto risco. Por outro lado, tem sido observado
Publicado em: 2009
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10. STUDIES OF BONE OF PATIENTS WITH HYPERPARATHYDROIDISM BY MEANS OF PHOSPHATE EXCHANGE EXPERIMENTS IN VITRO AND QUANTITATIVE MICRORADIOGRAPHY*
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11. Effect of sex hormones on bone in primary osteoporosis
The effect of sex hormones on bone tissue was studied in 12 osteoporotic patients. Surfaces of bone undergoing formation and resorption were determined by quantitative microradiography of iliac crest biopsy samples before and after treatment with estrogens in 11 postmenopausal women and with testosterone in one gonadally competent man. Before treatment, bone
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12. On the relationship between tetracycline and the incremental lines in dentine.
Ground and decalcified sections of human, goat and pig teeth were examined using polarized and ultraviolet fluorescence microscopy, microradiography and electron microscopy. The experimental animals were given doses of tetracycline within the range 3-150 mg/kg. After the low doses there was no evidence of any disturbance of mineralization or of structural or