نتایج جستجو برای: x gideon enamel microhardness

تعداد نتایج: 635241  

2015
Rene GARCIA-CONTRERAS Rogelio Jose SCOUGALL-VILCHIS Rosalía CONTRERAS-BULNES Hiroshi SAKAGAMI Raul Alberto MORALES-LUCKIE Hiroshi NAKAJIMA

The use of nanoparticles (NPs) has become a significant area of research in Dentistry. Objective The aim of this study was to investigate the physical, antibacterial activity and bond strength properties of conventional base, core build and restorative of glass ionomer cement (GIC) compared to GIC supplemented with titanium dioxide (TiO2) nanopowder at 3% and 5% (w/w). Material and Methods Vick...

Journal: :Journal of clinical and diagnostic research : JCDR 2017
Renita Soares Ida De Noronha De Ataide Marina Fernandes Rajan Lambor

INTRODUCTION Decades of research has helped to increase our knowledge of dental caries and reduce its prevalence. However, according to World Oral Health report, dental caries still remains a major dental disease. Fluoride therapy has been utilised in a big way to halt caries progression, but has been met with limitations. This has paved the way for the development of newer preventive agents th...

Journal: :The journal of contemporary dental practice 2017
Erica Crastechini Alessandra B Borges Klaus Becker Thomas Attin Carlos Rg Torres

AIM This study evaluated the efficacy of self-etching adhesive systems associated or not associated with the neodymium-doped yttrium aluminum garnet (Nd:YAG) laser on the protection against enamel erosive/abrasive wear. MATERIALS AND METHODS Bovine enamel specimens were demineralized with 0.3% citric acid (5 minutes). The samples were randomly assigned to eight groups (n = 20): SB - Single Bo...

2014
Frank C. Sun E. Eric Engelman James A. McGuire Gabrielle Kosmoski Lauren Carratello Danette Ricci-Nittel Jane Z. Zhang Bruce R. Schemehorn Robert J. Gambogi

Objective. The objective of this research was to evaluate the caries control potential of a new fluoride mouthrinse that also contained antimicrobial agents and a biofilm disrupting agent using different in vitro models. Methods. Four in vitro studies were conducted to assess the performance of this three pronged approach to caries control: (1) traditional enamel fluoride uptake, (2) surface mi...

2016
Feda I Zawaideh Arwa I Owais Wasan Kawaja

AIM To evaluate the effect of amorphous calcium phosphate (ACP)-containing pit and fissure sealant on inhibition of enamel demineralization in vitro. MATERIALS AND METHODS Enamel specimens (n = 75) were prepared using freshly extracted noncarious human third molars. Box-shaped cavities (8 × 2 × 2 mm) on the buccal or lingual surfaces were prepared and restored with resin-based sealant (Concis...

Introduction: Bleaching treatments may negatively affect the surface quality of composite restorations existing in the mouth. This study sought to assess the effect of 16% and 35% carbamide peroxide on microhardness of silorane-based versus two methacrylate-based composite resins. Methods: A total of 54 discs were fabricated from FiltekP90 (P90), FiltekZ350XT(Z350) Enamel and Filtek Z250(Z25...

2015
F. Rodrigues A. P. Serro C. G. Figueiredo - Pina

The oral aesthetic medicine has contributed increasingly to correct aesthetic defects in order to respond to the standards of beauty imposed by society. A smile with white teeth is included in these standards. However, due to several factors, such as diet, age and certain vices, the natural color of teeth tends to change. The bleaching of teeth pretends to restore the original color of the teet...

Journal: :European journal of paediatric dentistry : official journal of European Academy of Paediatric Dentistry 2002
B K Drummond N P Chandler A M Meldrum

AIM Cheeses have been investigated for their potential cariogenicity in several studies and have been shown to produce little change in the resting pH in dental plaque and little or no demineralisation of enamel in most intra-oral cariogenicity studies. The aim of the present study was to investigate the cariogenicity of four processed cheese formulations. METHODS Enamel demineralisation was ...

2016
Mary Anne Sampaio de Melo Vanara Florêncio Passos Juliana Paiva Marques Lima Sérgio Lima Santiago Lidiany Karla Azevedo Rodrigues

OBJECTIVES The aim of this investigation was to give insights into the impact of carbohydrate-electrolyte drinks on the likely capacity of enamel surface dissolution and the influence of human saliva exposure as a biological protective factor. MATERIALS AND METHODS The pH, titratable acidity (TA) to pH 7.0, and buffer capacity (β) of common beverages ingested by patients under physical activi...

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