Storage Saliva
Mostrando 1-12 de 28 artigos, teses e dissertações.
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1. Human DNA extraction from whole saliva that was fresh or stored for 3, 6 or 12 months using five different protocols
Abstract Saliva when compared to blood collection has the following advantages: it requires no specialized personnel for collection, allows for remote collection by the patient, is painless, well accepted by participants, has decreased risks of disease transmission, does not clot, can be frozen before DNA extraction and possibly has a longer storage time. O
J. Appl. Oral Sci.. Publicado em: 2017-04
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2. One-year aging effects on microtensile bond strengths of composite and repairs with different surface treatments
Abstract The present study aimed to evaluate effects of different surface treatments and aging of composite cylinders on bond strength of composite resin repair. Thirty-two composite cylinders were produced and divided into four groups according to type of surface treatment and storage time of composite cylinder and repair. Cylinder surface of control group
Braz. oral res.. Publicado em: 05/01/2017
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3. Salivary calcium and phosphate stability in different time and temperature storage
ABSTRACT The non-invasive collection and inexpensive nature of saliva has made it an attractive sample for use for diagnosis and research on several diseases. Storage circumstances may affect salivary component concentrations. The objective was to analyze calcium and phosphate stability in saliva samples stored at different conditions. Saliva of healthy peop
Braz. J. Pharm. Sci.. Publicado em: 2016-12
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4. Bonding stability of adhesive systems to eroded dentin
This in vitro study evaluated the immediate and 6 months microshear bond strength (µSBS) of different adhesive systems to sound and eroded dentin. Sixty bovine incisors were embedded in acrylic resin and ground to obtain flat buccal dentin surfaces. Specimens were randomly allocated into two groups: sound dentin (immersion in artificial saliva) and eroded d
Braz. oral res.. Publicado em: 07/07/2015
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5. Influence of chemical degradation and abrasion on surface properties of nanorestorative materials
Aim: The aim of this in vitro study was to investigate the synergistic effect of chemical degradation (erosion) and three-body abrasion (mechanical degradation) on the surface roughness (Ra) and hardness (KHN) of two nanorestorative materials and two conventional materials.
Methods: Disc-shaped specimens
Braz. J. Oral Sci.. Publicado em: 2015-06
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6. Analysis of saliva by Fourier transform infrared spectroscopy for diagnosis of physiological stress in athletes
Introduction Saliva is the most promising biofluid to monitor the physiological state of athletes, because this method is not invasive and has low contamination risks. The characterization of saliva by Fourier transform infrared spectroscopy (FT-IR) has been studied as an alternative technique to the standard clinical analysis. However, methodological proce
Res. Biomed. Eng.. Publicado em: 2015-04
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7. Degradation of orthodontic wires under simulated cariogenic and erosive conditions
This study examined the effect of cariogenic and erosive challenges (CCs and ECs, respectively) on the degradation of copper-nickel-titanium (CuNiTi) orthodontic wires. Sixty wire segments were divided into four treatment groups and exposed to CCs, ECs, artificial saliva, or dry storage (no-treatment control). CC and EC were simulated using a demineralizing
Braz. oral res.. Publicado em: 04/08/2014
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8. Influence of time, toothpaste and saliva in the retention of Streptococcus mutans and Streptococcus sanguinis on different toothbrushes
Objectives: The intraoral transmission of cariogenic and periodontopathogenic species seems to be facilitated by contaminated toothbrushes and other oral hygiene devices. The aim of this investigation was to analyze the in vitro retention and survival rate of Streptococcus mutans and Streptococcus sanguinis on different toothbrushes. The impacts of human sa
J. Appl. Oral Sci.. Publicado em: 2014-06
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9. Storage Media For Avulsed Teeth: A Literature Review
Dentre os traumatismos dento-alveolares, a avulsão dentária é a mais severa por causar danos em muitas estruturas e por consistir num deslocamento total do dente de seu alvéolo ósseo. O tratamento ideal é o reimplante dentário imediatamente após avulsão, pois o tempo extra-bucal é fator determinante para um bom prognóstico e o sucesso do tratament
Braz. Dent. J.. Publicado em: 2013-10
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10. Influence of microhybrid resin and etching times on bleached enamel for the bonding of ceramic brackets
The aim of this study was to evaluate the shear bond strength (SBS) of polycrystalline ceramic brackets (PCB) bonded after bleaching treatment using different composite resins and enamel etching times. A total of 144 bovine incisors were randomly divided into two study groups (n = 72, each) as follows: G1, enamel bleached with 35% hydrogen peroxide, and G2 (
Braz. oral res.. Publicado em: 2013-04
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11. Eroded dentin does not jeopardize the bond strength of adhesive restorative materials
This in vitro study evaluated the bond strength of adhesive restorative materials to sound and eroded dentin. Thirty-six bovine incisors were embedded in acrylic resin and ground to obtain flat buccal dentin surfaces. Specimens were randomly allocated in 2 groups: sound dentin (immersion in artificial saliva) and eroded dentin (pH cycling model - 3× / cola
Brazilian Oral Research. Publicado em: 19/06/2012
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12. Fracture resistance of bleached teeth restored with different procedures
This study evaluated the fracture resistance of teeth submitted to internal bleaching and restored with different non-metallic post. Eighty mandibular incisors were endodontically treated and randomly divided in 10 groups (n = 8): G1- restored with composite resin (CR), G2- CR + fiber-reinforced composite post (FRC, Everstick post, Sticktech) cemented with r
Materials Research. Publicado em: 19/06/2012