Abstract:
:This in situ/ex vivo study evaluated whether saliva stimulated by chewing gum could prevent or reduce the wear and the percent change in microhardness (%SMH) of bovine and human enamel submitted to erosion followed by brushing abrasion immediately or after 1 h. During 2 experimental 7-day crossover phases, 9 previously selected volunteers wore intraoral palatal devices, with 12 enamel specimens (6 human and 6 bovine). In the first phase, the volunteers immersed the device for 5 min in 150 ml of cola drink, 4 times per day (at 8, 12, 16 and 20 h). Immediately after the immersions, no treatment was performed in 4 specimens, 4 other specimens were immediately brushed (0 min) using a fluoride dentifrice, and the device was replaced into the mouth. After 60 min, the remaining 4 specimens were brushed. In the second phase, the procedures were repeated, but after the immersions, the volunteers stimulated the salivary flow rate by chewing a sugar-free gum for 30 min. Changes in wear and %SMH were measured. ANOVA and Tukey's test showed statistical differences (p<0.05) for the following comparisons. The chewing gum promoted less wear and %SMH. A decreasing %SMH and an increasing enamel wear were observed in the following conditions: erosion only, 60 min and 0 min. The human enamel presented greater %SMH and less wear compared to bovine enamel. The data suggest that the salivary stimulation after an erosive or erosive/abrasive attack can reduce the dental wear and the %SMH.
journal_name
Caries Resjournal_title
Caries researchauthors
Rios D,Honório HM,Magalhães AC,Delbem AC,Machado MA,Silva SM,Buzalaf MAdoi
10.1159/000092229subject
Has Abstractpub_date
2006-01-01 00:00:00pages
218-23issue
3eissn
0008-6568issn
1421-976Xpii
92229journal_volume
40pub_type
杂志文章,随机对照试验相关文献
CARIES RESEARCH文献大全abstract::Erosion of the buccal incisor enamel, most frequent in the upper jaw, has been associated with excessive oral exposure to citric acid-containing foodstuffs. The aim of the study was to determine the retention of citric acid at different sites in the mouth after a standardized exposure. Thirty-four normal subjects rins...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000262116
更新日期:1995-01-01 00:00:00
abstract::The acidogenic and cariogenic potential of plain and supplemented human and bovine milk was determined by pH tests and with intra-oral experiments. Human milk produced a lower pH than bovine milk and bovine milk with a 2% lactose supplement. Human milk caused greater softening of enamel than bovine milk in the intra-o...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000262356
更新日期:1996-01-01 00:00:00
abstract::One aim of the present laboratory study was to determine whether a visual scoring system (ERK) developed for occlusal caries could be applied to approximal lesions. A new histological technique (autofluorescence, AF) recognises dentine that is soft and would be removed with an excavator during operative treatment. A s...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000069018
更新日期:2003-03-01 00:00:00
abstract::This study evaluated, by cross-sectional hardness (CSH), enamel maturation at different depths in sound human teeth at different posteruptive ages (12 per age group): unerupted (molars; control), 2-3 years (premolars), 4-10 years (premolars) and >10 years (molars). Cross-sectional Knoop hardness was measured at 10, 30...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000264687
更新日期:2009-01-01 00:00:00
abstract:BACKGROUND:Casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) acts as a salivary biomimetic that provides bioavailable calcium and phosphate ions to augment fluoride-mediated remineralisation of early caries lesions. However, there are indications that it may also have beneficial ecological effects on the oral...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000499869
更新日期:2019-01-01 00:00:00
abstract::This paper describes the dental health status of Italian 4-year-olds in 2004/2005 and analyzes the association between caries in preschool children and some background characteristics in children and parents. Caries was recorded according to WHO criteria. 5,538 subjects were examined. Information on the children's and...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000211719
更新日期:2009-01-01 00:00:00
abstract::This study investigated the role of a matrix metalloproteinase (MMP) inhibitor (CHX 2%) in the development of secondary caries wall lesions in different interface conditions with small (run 1) and wider gaps (run 2). Dentin discs were restored and pretreated with or without CHX 2%. In run 1, interfaces were made with ...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000490195
更新日期:2019-01-01 00:00:00
abstract::This in situ/ex vivo study assessed the effect of different concentrations of fluoride in dentifrices on dentin subjected to erosion or to erosion plus abrasion. Ten volunteers took part in this crossover and double-blind study performed in 3 phases (7 days). They wore acrylic palatal appliances containing 4 bovine de...
journal_title:Caries research
pub_type: 杂志文章,随机对照试验
doi:10.1159/000117807
更新日期:2008-01-01 00:00:00
abstract::There are few longitudinal studies in which the development of caries over a long period of time has been studied for different age groups. Such studies are important because they can provide information to assess future needs for dental care and the implications if the development of caries is different for patients ...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000381427
更新日期:2015-01-01 00:00:00
abstract::The quality of radiographic diagnosis of occlusal carries was examined with special attention to the diagnosis of lesions in dentin. Eighty-four extracted teeth, most of them with occlusal caries of different severity and some apparently sound, were radiographed. For validation purposes, the lesion depths were recorde...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000261640
更新日期:1994-01-01 00:00:00
abstract::To exert anticaries effects, probiotics are described to inhibit growth and biofilm formation of cariogenic bacteria such as Streptococcus mutans (SM). We screened 8 probiotics and assessed how SM growth or biofilm formation inhibition affects cariogenicity of probiotic-SM mixed-species biofilms in vitro. Growth inhib...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000452960
更新日期:2017-01-01 00:00:00
abstract::The aim of this study was to test the clinical effects of preventive regimens using fluoride and chlorhexidine on caries development in abutment teeth in patients with overdentures. 30 patients with immediate overdentures were distributed at random among three experimental groups. In these groups three different gels ...
journal_title:Caries research
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1159/000261298
更新日期:1990-01-01 00:00:00
abstract::This study examines cellular and microradiographic findings in thin, undemineralized sections of 46 cavitated lesions, that were clinically well-defined with respect to lesion activity and estimated lesion age at extraction time. The progressive stages of surface breakdown ranged from enamel cavitation to larger denti...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000016495
更新日期:1999-01-01 00:00:00
abstract::The purpose of this study was to evaluate the influence of enamel defects in the development of dental caries and their association with feeding practices and oral health behaviors in a cohort study of low-socioeconomic children from birth to 36 months of age in northeastern Brazil. Subjects were registered at birth a...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000093188
更新日期:2006-01-01 00:00:00
abstract::The development of approximal carious lesions was monitored on annual bite-wing radiographs obtained from 315 children, participating in a controlled dentifrice trial; 157 of these children had used a dentifrice containing 250 ppm F and 158 a dentifrice containing 1,000 ppm F (both as NaF) during a 3-year period as th...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000261369
更新日期:1991-01-01 00:00:00
abstract:AIM:The aim of this study was to evaluate the effectiveness of partial removal of carious dentine and restoration in a single session (PDR) and stepwise excavation (SW), both of which are treatments for deep carious lesions, in Public Health Services in Brazil. METHODS: INCLUSION CRITERIA:patients ≥6 years old, perma...
journal_title:Caries research
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1159/000344013
更新日期:2013-01-01 00:00:00
abstract::Adhesion of bacteria to pellicle-coated tooth surfaces is the first step in biofilm formation on teeth. The aim of this study was to explore whether human milk prevents or promotes adhesion of cariogenic Streptococcus mutans to saliva-coated hydroxyapatite (HA) using an in vitro model system. S. mutans binding to HA c...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000094287
更新日期:2006-01-01 00:00:00
abstract::Data on the prevalence of tooth wear among children and adolescents are inconsistent. Given the impact of extensive tooth wear for over a lifetime, evidence on the extent is required. The aim was to systematically review the literature on the prevalence of tooth wear in children and adolescents. A PubMed literature se...
journal_title:Caries research
pub_type: 杂志文章,评审
doi:10.1159/000308567
更新日期:2010-01-01 00:00:00
abstract::The influence of air-drying on the remineralization of demineralized bovine dentine was examined in wet bulk samples, in dried bulk samples as well as in wet thin sections. Bulk samples of bovine dentine were first demineralized in an acidic gel (pH = 5) at 37 degrees C for 3 weeks. After 24-hour pre-treatment of eith...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000262074
更新日期:1995-01-01 00:00:00
abstract::This in situ study investigated the secondary caries development in dentin in gaps next to composite and amalgam. For 21 days, 14 volunteers wore a modified occlusal splint containing human dentin samples with an average gap of 215 µm (SD=55 µm) restored with three different materials: Filtek Supreme composite, Clearf...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000438728
更新日期:2015-01-01 00:00:00
abstract::The influence of temporary dietary restriction with and without fluoridated drinking water on the progression of caries was studied in 60 desalivated Sprague-Dawley rats. Dietary restriction alone had little effect on caries progression when the challenge was interrupted and then resumed, in contrast to the effects of...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000261974
更新日期:1994-01-01 00:00:00
abstract::Metalloproteinases (MMPs) have been implicated with metabolism of collagen in physiological and pathological processes in human dentine. As bovine teeth have been used as a substitute for human teeth in laboratory analysis, this study evaluated the activity of MMP-2 and -9 in bovine versus human dentine. Bovine and hu...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000330525
更新日期:2011-01-01 00:00:00
abstract::This study was undertaken to examine the influence of occlusion on the fluoride distribution in cementum following an experiment in which the occlusion in rats was locally altered by extracting the upper left molar. These and control rats with normal occlusion were given water containing 0 or 100 ppm fluoride for 12 w...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000261480
更新日期:1992-01-01 00:00:00
abstract::There is ample evidence that caries can develop well into the middle-aged years, and for many subjects, for most of their adult lives. The kinds of benefits to expect for adults in the longer term for improved fluoride products, especially dentifrices, based upon small observed relative improvements in short-term effi...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000261561
更新日期:1993-01-01 00:00:00
abstract::This study measured dental caries in children after cessation of a 30-month randomised clinical trial in which the intervention group received supervised toothbrushing once a day at school with 1,000 ppm fluoride toothpaste and a home support package encouraging twice-daily toothbrushing. The non-intervention group di...
journal_title:Caries research
pub_type: 杂志文章,随机对照试验
doi:10.1159/000104800
更新日期:2007-01-01 00:00:00
abstract::Little is known about the long-term effects of fluoride-releasing materials on carious dentine in vivo. The aim was to investigate the 2-year influence of a resin-modified glass ionomer cement (RM-GIC) and amalgam on the bacteriological counts of carious dentine that remained under class I restorations. To enable a sp...
journal_title:Caries research
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1159/000016506
更新日期:1999-01-01 00:00:00
abstract::The purpose of this study was to compare the enamel remineralization effectiveness of a fluoride rinse, fluoridated dentifrice, and fluoride-releasing restorative material. Forty extracted molars had 1 x 5 mm artificial carious lesions formed at the interproximal contact point. One-hundred-micrometer sections were obt...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000262432
更新日期:1997-01-01 00:00:00
abstract:AIM:To assess the effect of protein-containing toothpastes on the progression of dental erosion in situ (with pellicle) and in vitro (without pellicle). METHODS:A combined split-mouth (extraoral water or toothpaste brushing) and crossover (type of toothpaste) setup was used. Two protein-containing (high/low concentrat...
journal_title:Caries research
pub_type: 杂志文章,随机对照试验
doi:10.1159/000344016
更新日期:2013-01-01 00:00:00
abstract::Erythritol is a sugar alcohol produced by Aureobasidium sp. from glucose. It is 75-80% as sweet as sucrose and is also nonhygroscopic. The aim of this study was to evaluate this sugar substitute from a cariological point of view. Erythritol was neither utilized as a substrate for the lactic acid production nor for pla...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000261468
更新日期:1992-01-01 00:00:00
abstract::This study aimed to analyse if the erosion-protective potential of the salivary pellicle is different between female and male subjects. Bovine enamel and dentin specimens (each n = 3) were exposed to the oral cavity of healthy female or male volunteers (each n = 25, females: 25.8 ± 3.5 years, males: 26.7 ± 4.0 years) ...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000500046
更新日期:2019-01-01 00:00:00