نتایج جستجو برای: demineralization

تعداد نتایج: 1508  

Journal: :Brazilian oral research 2013
Mary Anne Sampaio de-Melo Diego da Costa Goes Maria Denise Rodrigues de-Moraes Sérgio Lima Santiago Lidiany Karla Azevedo Rodrigues

This study evaluated the effect of a 2% chlorhexidine-based disinfectant (CHX) on the short-term resin-dentin bond strength of a self-etch adhesive system to human dentin with different mineral contents. Dentinal mineralization was tested at 4 levels (sound, and after 2, 4, or 8 days of demineralization-remineralization cycles) and disinfectant at 2 levels [deionized water (DW, negative control...

Journal: :Micron 2009
Hermann Ehrlich Petros G Koutsoukos Konstantinos D Demadis Oleg S Pokrovsky

This is the second paper on principles of demineralization. The initial paper is dedicated to the common definitions and the history of demineralization. In present work we review the principles and mechanisms of decalcification, i.e., removing the mineral Ca-containing compounds (phosphates and carbonates) from the organic matrix in its two main aspects: natural and artificial. Natural chemica...

Journal: :Dental materials journal 2016
Toru Shiiya Kiyoshi Tomiyama Junko Iizuka Haruhiko Hasegawa Erika Kuramochi Fukue Fujino Katsura Ohashi Tomotaro Nihei Toshio Teranaka Yoshiharu Mukai

This study investigated the in vitro anti-demineralization effects of resin-based temporary filling materials containing surface prereacted glass-ionomer (S-PRG) filler on dentin. Bovine root dentin specimens with a 3×3 mm experimental surface were divided into four treatment groups: DuraSeal (DU) as a control, S-PRG filler-free temporary material (S0), material containing 10% (S10) and 20% (S2...

Journal: :Brazilian oral research 2011
Alessandra Gatti Lucila Basto Camargo José Carlos Pettorossi Imparato Fausto Medeiros Mendes Daniela Prócida Raggio

The aim of this study was to evaluate the anticaries potential of 500 or 1100 ppm F dentifrices combined with fluoride varnish using a pH-cycling regimen. Seventy primary canines were covered with nail polish, leaving a 4×4 mm window on their buccal surface, and randomly assigned into 7 groups (n = 10): S: sound enamel not submitted to the pH-cycling regimen or treatment; N: negative control, s...

Journal: :Brazilian oral research 2013
Juliana de Oliveira Ferla José Augusto Rodrigues César Augusto Galvão Arrais Ana Cecília Correa Aranha Alessandra Cassoni

This study evaluated the effects of the photoactivation source and restorative material on the development of caries-like lesions on human enamel after an in vitro pH challenge. Enamel cavities were prepared in 36 blocks, which were assigned to two groups according to the restorative material: resin-modified glass ionomer (RMGI) and composite resin (CR). Samples were exposed to quartz-tungsten-...

2014
Seyed Hamid Raji Hamed Banimostafaee Fatemeh Hajizadeh

BACKGROUND The aim of the present study is to evaluate the effects of a fluoride-releasing composite resin bonding material on reducing enamel demineralization underneath and around orthodontic brackets and compare that with a conventional adhesive system. MATERIALS AND METHODS Buccal surfaces of 10 intact extracted premolar teeth were divided into two parts with nail varnish and stainless st...

2016
Chanchal Singh Sulekha Doley

Background: Dairy products were recognised in the late 1950s as food group exhibiting most anticaries activities. Yogurt, a dairy product, almost as commonly consumed as milk has been subjected to less research in the context of its effect on oral health, especially on dental enamel. AIM: To compare invitro the effectiveness of probiotic enriched yogurt extract and traditional yogurt extract in...

Journal: :dental research journal 0
sogra yassaei neda shahraki hossein aghili abdolrahim davari

background: development of white spot lesions on enamel is a significant and common problem during the fixed orthodontic treatment. various preventive methods have been suggested. the purpose of this study was to evaluate the preventive potential of mi paste plus, er: yag laser and combined under similar in vitro conditions against demineralization. materials and methods: in this experimental i...

Journal: :dental research journal 0
seyed hamid raji hamed banimostafaee fatemeh hajizadeh

background: the aim of the present study is to evaluate the effects of a fl uoride-releasing composite resin bonding material on reducing enamel demineralization underneath and around orthodontic brackets and compare that with a conventional adhesive system. materials and methods: buccal surfaces of 10 intact extracted premolar teeth were divided into two parts with nail varnish and stainless s...

Journal: :The Angle orthodontist 2000
S A Alexander L W Ripa

The purpose of this study was to compare the effectiveness of toothbrushing followed by fluoride rinsing, fluoride gel brushing, or fluoride gel dentifrice brushing alone in controlling the demineralization that often follows orthodontic treatment. Seventy-eight consecutive adolescent patients undergoing orthodontic care were divided into 3 groups: group 1 (control) used a low-potency, high-fre...

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