Abstract:
:Acidic fluoride solutions may reduce dental erosion. The aim of this study was to compare the effect of different acidic fluoride solutions on enamel dissolution using an established in vivo model. When possible 4 anterior teeth (255 teeth in a total of 67 subjects) were isolated and exposed to 0.01 M citric acid. The acid was collected in test tubes before (etch I) and 5 min after (etch II) application of test fluoride preparations. Acidic fluoride solutions (pH range 1.5-2.9), i.e. SnF(2), TiF(4) and hydrogen fluoride (HF) (all approx. 0.1 M F), HF (0.027, 0.055, 0.082 M F) and neutral NaF solution (0.1 M F) as control were applied to the labial surfaces of the teeth for 1 min (6 ml/min). Enamel dissolution was examined by chemical analysis of calcium content in the citric acid etch solutions using atom absorption spectrometry. The change in calcium concentration (DeltaCa) and the percentage of mean calcium reduction were calculated from the difference in calcium loss between etch I and etch II. Statistical analysis was carried out using the Wilcoxon signed rank test and Kruskal-Wallis tests with Dunn's multiple comparison. Results showed a mean DeltaCa of 0.671 mg/l (SD 0.625) for SnF(2), and ranged from 0.233 mg/l (SD 0.248) for the weakest HF solution to 0.373 mg/l (SD 0.310) for the strongest HF solution. This represented a 67% reduction in enamel dissolution for SnF(2) and a 40-76% reduction for the HF solutions. No reduction was observed for TiF(4) or NaF. The types of metal, pH and fluoride concentration are all important for the in vivo effect.
journal_name
Caries Resjournal_title
Caries researchauthors
Hjortsjö C,Jonski G,Thrane PS,Saxegaard E,Young Adoi
10.1159/000209345subject
Has Abstractpub_date
2009-01-01 00:00:00pages
126-31issue
2eissn
0008-6568issn
1421-976Xpii
000209345journal_volume
43pub_type
杂志文章,随机对照试验相关文献
CARIES RESEARCH文献大全abstract::Postradiation caries is usually prevented by the application of topical fluorides (F) at high concentrations. The aim of this study was to develop an optimal preventive program for postradiation caries by evaluating the effects of F concentration and application procedures in subjects with radiation-related xerostomia...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000261173
更新日期:1989-01-01 00:00:00
abstract::Some newly designed surface-active phosphates were investigated with respect to their capacity to inhibit caries lesion formation in vitro. On the labial or buccal surfaces of sound human third molars, windows were prepared for investigation. One half of each window was treated with the test compound at pH values of 7...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000261434
更新日期:1992-01-01 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::The aim of this study was to use ultrasonication as a method to measure subsurface demineralisation of enamel. Polished human enamel samples with surface profiles within +/-0.3 microm were divided into 6 groups of 10 specimens. The groups of specimens were exposed to 0. 3% citric acid (pH 3.2) for 30 min, 1, 2, 3 or 4...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000016604
更新日期:2000-07-01 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::This longitudinal study aimed to investigate variables associated with colonisation of mutans streptococci (MS) compared with lactobacilli (LB) colonisation in a cohort of children (n = 214) from the time of first tooth eruption at approximately 6 months until 24 months of age. Repeated plaque and salivary samples wer...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000339089
更新日期:2012-01-01 00:00:00
abstract::The latest fluoride research is investigating the use of slow-release devices for the long-term intra-oral provision of fluoride. 174 children aged 8 years with fluoride slow-releasing glass devices were shown to develop 67% fewer new carious teeth and 76% fewer new carious surfaces in a 2-year double-blind caries stu...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000049102
更新日期:2001-01-01 00:00:00
abstract::The study aimed to compare the amounts of softened enamel removable by ultrasonication and by toothbrushing abrasion of briefly eroded samples. Thirty bovine enamel samples were demineralized in hydrochloric acid (pH 2.1) for 60 s and were then either brushed with 350 brushing strokes in toothpaste slurry (group A) or...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000096106
更新日期:2007-01-01 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::Despite promising results using probiotics, evidence of the preventive effect on enamel demineralization is insufficient and the cariogenic potential of probiotics is still controversial. Probiotics could affect biofilm formation and interfere with adherence, growth or coaggregation with Streptococcus mutans in biofil...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000439315
更新日期:2015-01-01 00:00:00
abstract::Class V cavities were prepared in the upper and lower left second premolars from an individual under infiltration anesthesia. The cavities were filled with fluoride- releasing resin (TF). One month later, the teeth were extracted. As a control (in vitro), the upper and lower right second premolars were extracted at th...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000047441
更新日期:2001-03-01 00:00:00
abstract::The level of Streptococcus mutans in saliva was determined by a dip-slide method in 841 13-year-old children in order to identify children with high caries risk. For each child, the flow rate of saliva was determined. Caries scores were obtained from Public Dental Health records. A sucrose intake score was calculated ...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000261110
更新日期:1988-01-01 00:00:00
abstract::This study aimed to determine the reliability and accuracy of the ICDAS and radiographs in detecting and estimating the depth of proximal lesions on extracted teeth. The lesions were visible to the naked eye. Three trained examiners scored a total of 132 sound/carious proximal surfaces from 106 primary teeth and 160 s...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000324439
更新日期:2011-01-01 00:00:00
abstract::The effect of supplementing the diet or drinking water with lactate dehydrogenase (LDH) on the formation of caries lesions in rats was investigated. Addition of LDH [20 and 5 mg/kg in the high-sucrose (65%) diet, 2 and 1 U/ml in the drinking water (LDH-specific activity 735 U/mg solid)] resulted in significant reducti...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000261236
更新日期:1990-01-01 00:00:00
abstract::The purpose of this study was to examine plaque and saliva composition after a fluoride rinse and subsequent sucrose application. Fifteen subjects accumulated plaque for 48 h, and then rinsed with a fluoride rinse based on 228 microg/g (ppm) Na2SiF6 and some received no rinse. After 60 min, upper and lower buccal mola...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000057590
更新日期:2002-01-01 00:00:00
abstract::In vitro experiments could demonstrate that only negligible amounts of fluoride are necessary to promote remineralization of incipient caries lesions. From the clinical point of view, there is evidence that only under certain circumstances is a stabilization of the surface zone of an incipient caries lesion the true m...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000049112
更新日期:2001-01-01 00:00:00
abstract::The purpose of this study was to determine the efficacy of fluoride varnish (FV) in inhibiting progression of secondary caries (SC). In a first experiment, human teeth, restored either with amalgam or resin composite, were exposed for 4 days to a microbial caries model. Half of each specimen was then painted with an a...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000057871
更新日期:2002-03-01 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::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 previousl...
journal_title:Caries research
pub_type: 杂志文章,随机对照试验
doi:10.1159/000092229
更新日期:2006-01-01 00:00:00
abstract:OBJECTIVES:To assess the ability of fluorescence imaging with reflectance enhancement (FIRE) to quantify early enamel demineralization in vitro. METHODS:A total of 30 bovine enamel specimens were immersed in demineralizing solution to produce artificial caries. Specimens were examined by FIRE, quantitative light-induc...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000365298
更新日期:2015-01-01 00:00:00
abstract::This in vivo pilot study was carried out to test the antibacterial effect of glass ionomer containing chlorhexidine (test group) in comparison to conventional glass ionomer (control group). Fifty 6- to 11-year-old children with one occlusal lesion in a molar were randomly allocated to test and control groups in a para...
journal_title:Caries research
pub_type: 杂志文章,随机对照试验
doi:10.1159/000098042
更新日期:2007-01-01 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:AIM:To study the effectiveness of four different preventive programmes within a group of adolescents at high risk of caries. SUBJECTS AND METHODS:In 1995, a cohort of 12-year-olds was examined for caries and completed a questionnaire. Subjects identified as being at high risk were examined every year until 2000 when t...
journal_title:Caries research
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1159/000081652
更新日期:2005-01-01 00:00:00
abstract::Streptococcus mutans and Streptococcus sobrinus are associated with the development of dental caries. The purpose of this study was to differentiate these bacteria by morphology, biochemical characteristics and PCR, and to compare their occurrence with the prevalence of dental caries in the Mosuo people. Plaque sample...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000072171
更新日期:2003-09-01 00:00:00
abstract::The aim of the present study was to develop transverse microradiography (TMR) in order to quantitatively assess the influence of artificial saliva and orange juice on the erosion of bovine enamel. Bovine incisors were sectioned sagittally into two equal halves. Each half was coated with acid-resistant nail varnish exc...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000016471
更新日期:1998-01-01 00:00:00
abstract::The aim of this in vitro study was to investigate the impact of saliva on the abrasion of eroded enamel using two measuring methods. A total of 80 bovine enamel specimens from 20 bovine incisors were allocated to four experimental groups (n = 20 specimens per group). After baseline surface microhardness (SMH) measurem...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000489133
更新日期:2019-01-01 00:00:00
abstract::This crossover study evaluated the effect of calcium carbonate (CaCO(3))-based monofluorophosphate dentifrice on enamel remineralization. Ten volunteers wore palatal appliances containing four enamel blocks with caries-like lesions, two of them covered by a test plaque of mutans streptococci. The following treatments ...
journal_title:Caries research
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1159/000084807
更新日期:2005-05-01 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::Early childhood caries (ECC) is closely related to high numbers of mutans streptococci, lactobacilli and Candida albicans. Oral colonization of these microorganisms was monitored in a prospective clinical study in order to investigate the effect of comprehensive treatment under general anesthesia and the sustainabilit...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000351673
更新日期:2014-01-01 00:00:00
abstract::The aim of the present study was to evaluate the colonization profile and clonal distribution of Streptococcus mutans isolated from oral cavities that presented coronal and root caries lesions. The isolation and biochemical identification of mutans streptococci were carried out by using saliva samples, dental plaque, ...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000079627
更新日期:2004-09-01 00:00:00