نتایج جستجو برای: toothpaste sample

تعداد نتایج: 413332  

Journal: :Analytical and bioanalytical chemistry 2008
Félix Hernández María Ibáñez Juan V Sancho

A rapid method for determining diethylene glycol (DEG) in toothpaste based on the use of ultra-performance liquid chromatography (UPLC) coupled to time-of-flight mass spectrometry (TOF-MS) has been developed. The method has been validated in toothpaste samples spiked at different levels, 0.005, 0.1 and 5%, obtaining satisfactory recoveries (74-98%) and relative standard deviations (<4%). Quanti...

Journal: :Collegium antropologicum 2013
Martina Majstorović Dubravka Negovetić Vranić Lajos Szirovicza

Artificially synthesized probiotic from Lactobacillus strain, contained in the tested toothpaste, led to an innovative approach in preventive dentistry. A new concept resulting from this research can be explained due to possible mechanisms of action of probiotic bacteria, according to which equilibrium of hostile bacterial flora is achieved by mechanical elimination of cariogenic bacteria from ...

2016
Zheng-yan Yang Fei Wang Keke Lu Yue-heng Li Zhi Zhou

OBJECTIVE To estimate the effect of arginine-containing desensitizing toothpaste on dentin hypersensitivity (DH). METHODS Databases including China National Knowledge Infrastructure, VIP Database for Chinese Technical Periodicals, China Biology Medicine disc, Wangfang Data, PubMed, Web of Science, and Cochrane Trials Register were searched, and Google was used as a supplementary tool to searc...

2000

Remember to bring in your own drinking water sample to be tested for Fluoride. Ahead of the actual laboratory work, you need to sign-out from the stockroom a 500 mL plastic bottle in which to store your drinking water sample. Note valuable laboratory time can be saved if your group has read this experiment ahead of time. It is suggested that one of the partners start to dissolve the toothpaste ...

Atousa Janeshin, Javaneh Vejdani, Maryam Seyedhosseini, Seyedeh Saeideh Mohtavipour,

  Abstract Introduction: Mechanical plaque removal is the most reliable method of oral hygiene practice. However, to maximize its effect, it should be accompanied by the use of chemical agents such as toothpastes, mouth washes and fluoride gels. This study aimed to compare the effect of tooth brushing with an Iranian toothpaste compared to a commonly used foreign-made toothpaste on plaque in...

Journal: :journal of dentistry, tehran university of medical sciences 0
beheshteh malekafzali associate professor, department of pediatric, dental school, shahid beheshti university of medical sciences, tehran, iran. maliheh ekrami post graduate student, department of operative, dental school, shahid beheshti university of medical sciences, tehran, iran. armin mirfasihi dental student, dental school, shahid beheshti university of medical sciences, tehran, iran. zahra abdolazimi post graduate student, department of pediatric, dental school, shahid beheshti university of medical sciences, tehran, iran.

although fluoridated toothpastes are among the most accessible fluoride sources for caries prevention, their remineralization potential remains questionable. this study sought to compare the effects of 5 different child formula dentifrices on remineralization of artificial primary enamel caries using a ph cycling model.twenty sound primary canine teeth were immersed in demineralizing solution f...

2013
Junko Ota Tatsuo Yamamoto Yuichi Ando Jun Aida Yukio Hirata Seishiro Arai

BACKGROUND One of the dental health goals of Health Japan 21, in which the Japanese government clarified its health policy, was to ensure the use of fluoride toothpaste in 90% or more of schoolchildren. This goal was not achieved. The aim of this cross-sectional questionnaire study was to evaluate the characteristics of parents whose children use non-fluoride toothpaste. METHODS In December 2...

Journal: :Dentistry 3000 2021

AIM:To compare the effects of a plaque disclosing toothpaste with regular fluoridated for supragingival biofilm reduction in patients chronic gingivitis.MATERIALS AND METHODS:This study was randomized controlled trial parallel design. Forty patients, both males and females aged 18-25 years generalized gingivitis (N=40) were randomly allocated to two groups twenty each (n=20), using lottery meth...

Journal: :Int. J. Computational Intelligence Systems 2010
Tolga Kaya Emel Aktas Y. Ilker Topcu Burç Ülengin

The purpose of this study is to compare the performances of Artificial Neural Networks (ANN) and Multinomial Probit (MNP) approaches in modeling the choice decision within fast moving consumer goods sector. To do this, based on 2597 toothpaste purchases of a panel sample of 404 households, choice models are built and their performances are compared on the 861 purchases of a test sample of 135 h...

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