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 samples were collected from the permanent first molar in 126 Mosuo people (83 females, 43 males, aged 25-55 years, average age 36.1 +/- 7.73). Dental status was recorded as DMFT by WHO caries diagnostic criteria. Males had a significantly lower prevalence of caries and DMFT than females: 11.4 vs. 86.9% and 1.65 vs. 6.95, respectively (p<0.001). Morphological and biochemical tests gave unreliable results. The prevalence of S. mutans and S. sobrinus was 75.4 and 57.1%, respectively. 26.5% of females and 53.5% of males were positive for S. mutans alone, 18.1% of females and 16.3% of males were positive for S. sobrinus alone, while 50.6% of females and 18.6% of males were positive for both S. mutans and S. sobrinus and 4.8% of females and 11.6% of males were negative for both species. The DMFT scores of subjects positive for both S. mutans and S. sobrinus were significantly higher than of those positive for either S. mutans or S. sobrinus alone. These results indicate that subjects harboring both S. mutans and S. sobrinus have a significantly higher prevalence of dental caries than those with S. mutans or S. sobrinus alone.
journal_name
Caries Resjournal_title
Caries researchauthors
Wu H,Fan M,Zhou X,Mo A,Bian Z,Zhang Q,Chen Zdoi
10.1159/000072171subject
Has Abstractpub_date
2003-09-01 00:00:00pages
374-80issue
5eissn
0008-6568issn
1421-976Xpii
72171journal_volume
37pub_type
杂志文章相关文献
CARIES RESEARCH文献大全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::Oral exposed, natural root surfaces of extracted human teeth were subjected to artificial lesion formation in gels of dialyzed gelatin that contained 75 mM lactic and 25 mM acetic acid and 1, 3, 10, 32, 100, 320, 550, or 1,000 mg F/l at pH 4.3-4.4 and at 36 degrees C. Ca and PO4 demineralization per square millimeter ...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000261096
更新日期:1988-01-01 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::In this study we evaluated the effect of chitosan nanoparticles on the acid tolerance response (ATR) of adhered Streptococcus mutans. An ATR was induced by exposing S. mutans to pH 5.5 for 2 h and confirmed by exposing the acid-adapted cells to pH 3.5 for 30 min, with the majority of cells appearing viable according t...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000331206
更新日期:2011-01-01 00:00:00
abstract::Lycasin was included in diets fed to caries-active Osborne-Mendel rats for periods up to 8 weeks. The animals could tolerate up to 15-16% of Lycasin in dry-powder diets and up to 25% in pelleted diets before gastro-intestinal disturbance. Lycasin 80/55 at 25% in the diet was non-cariogenic, producing a very low level ...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000261123
更新日期:1988-01-01 00:00:00
abstract::Long-term nationally representative caries data in the primary dentition are rare, but nonetheless central to assess needs in caries prevention and treatment. This study evaluated the prevalence and trends of caries levels in the primary dentition of 6- to 7-year-olds in Germany as a whole and its federal states indiv...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000500854
更新日期:2019-01-01 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::The purpose of this study was to determine whether or not the dual constant-depth film fermenter (dCDFF) is able to produce caries-like enamel lesions and to ascertain further information regarding the performance of this fully functional biological caries model. Conditions were defined by the continuation (CF) or ces...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000456015
更新日期:2017-01-01 00:00:00
abstract::The aim was to study the short-term effect of a varying sucrose exposure on plaque acidogenicity and cariogenic microflora in two groups of subjects with different levels of mutans streptococci (MS). Eight subjects with low (<10(4)) and 8 with high (>10(6)) numbers of MS per millilitre saliva participated. Three 7-day...
journal_title:Caries research
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1159/000068221
更新日期:2003-01-01 00:00:00
abstract::In 90, 60- to 80-year-old patients with teeth retained in both jaws (mean 20.4 +/- 4.3), a total of 1,092 root surface lesions were recorded. Of these 156 were diagnosed as active caries lesions, whereas 509 were considered inactive, and 427 were filled. About 60% of the elderly had one or more active lesions and 79% ...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000261396
更新日期:1991-01-01 00:00:00
abstract::The microradiographic mineral content and birefringence in water and Thoulet's solution were measured at selected points in sections of caries-like lesions. Birefringence was not related to mineral content in sound superficial enamel immersed in Thoulet's solution or in the lesion body immersed in water. For the surfa...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000261508
更新日期:1993-01-01 00:00:00
abstract::Dental resin composites with antibacterial activity may be useful for preventing the secondary caries frequently seen around restorations. Three types of silver-supported antibacterial materials (Novaron, Amenitop and AIS) inhibited the growth of the major oral pathogen Streptococcus mutans. Minimum inhibitory amounts...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000016535
更新日期:1999-09-01 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::The aim of the study was to determine the pharmacokinetics of a new hydroxyapatite-Eudragit RS100 diffusion-controlled fluoride-releasing system designed for intraoral use with a 0.15 mg F(-)/day release for a 1-month period. Matrix tablets, each containing 18 mg of sodium fluoride, were bonded to the buccal surface o...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000084797
更新日期:2005-05-01 00:00:00
abstract::The aim of this study was to assess the relationship between salivary mutans streptococcus (SMS) levels and the prevalence and incidence of dental caries in 148 children (mean baseline age 3.8 years) of low socioeconomic status. Caries data (dmfs) and semiquantitative SMS counts were obtained at baseline and annually ...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000262057
更新日期:1995-01-01 00:00:00
abstract::This study investigated the relationship of arginine deiminase (ADS) and urease activities with dental caries through a case-control study. ADS and urease activities were measured in dental smooth-surface supragingival plaque and whole saliva samples from 93 subjects, who were in three different groups: caries-free (n...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000321139
更新日期:2010-01-01 00:00:00
abstract::A double-blind 3-year clinical trial was conducted in a nonfluoridated water community in which 354 schoolchildren aged 9-10 years were assigned randomly to three groups (A, B and C) and subjected to a treatment with 1 of 3 different concentrations of amine fluoride solution every 2 months. Clinical examinations were ...
journal_title:Caries research
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1159/000262064
更新日期:1995-01-01 00:00:00
abstract::Twenty-four-hour urine samples were collected from each of thirteen 5- to 6-year-old children both under customary conditions of fluoride intake (i.e. usual diet including milk containing 0.5 mg fluoride and usual oral hygiene procedures with fluoride toothpaste) and during a 4-day study period in which their customar...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000047466
更新日期:2001-07-01 00:00:00
abstract::A selected group of oral bacteria commonly associated with dental health is capable of producing alkali via the arginine deiminase system (ADS), which has a profound impact on the pH of human oral biofilms. An increased risk for dental caries has been associated with reduced ADS activity of the bacteria in oral biofil...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000365296
更新日期:2015-01-01 00:00:00
abstract::In 1995, a dental survey was performed among adults aged 25-54 in the Dutch city of 's-Hertogenbosch. A similar study was performed in the same city in 1983 and the aim of the present study was to describe trends in oral health from 1983 to 1995. National data show that the percentage of edentulous persons aged 30-39 ...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000016448
更新日期:1998-01-01 00:00:00
abstract:AIM:The aim of the study was to evaluate if pH indicator strips could be used for measurements of plaque pH acidogenicity in situ. METHOD:Interproximal plaque pH was measured before and up to 60 min after a 10% sucrose rinse in 30 healthy volunteers using pH indicator strips and the microtouch method in parallel. RES...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000315273
更新日期:2010-01-01 00:00:00
abstract::The 5-year incidence of caries was studied in a random sample of 60-, 70- and 80-year-old inhabitants of Göteborg, with 69, 51 and 28 individuals in the different age groups. One aim of the study was to introduce a root caries index (DMFRS%) in which the missing root surfaces are taken into account. This study, as wel...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000262408
更新日期:1997-01-01 00:00:00
abstract::A questionnaire was sent to 54 experts in preventive dentistry in 23 European countries in order to make an inventory of existing national dietary guidelines for the prevention of dental caries. In addition, the experts were asked to give their personal opinion on several issues concerning the relationship between die...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000074358
更新日期:2004-01-01 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::Intact human enamel was demineralized in vitro to obtain artificial caries lesions. Part of the lesions was then treated with different surface-active compounds and remineralized with a remineralizing solution. The other part of the lesions was de- and remineralized in the same way, but was not treated with a surface-...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000261339
更新日期:1991-01-01 00:00:00
abstract::The purpose of the study was to determine whether adding calcium lactate to chewing gum containing xylitol enhances remineralization of enamel surfaces using an early caries lesion model. Enamel slabs were cut from human extracted sound teeth and artificial subsurface lesions created within each. Half the enamel slabs...
journal_title:Caries research
pub_type: 杂志文章,随机对照试验
doi:10.1159/000088905
更新日期:2006-01-01 00:00:00
abstract::In the present in vitro study, the validity was determined of bite-wing radiographs for the diagnosis of secondary caries in approximal parts of teeth with class II amalgam restorations in vitro. The study was performed on 47 molars and 49 premolars providing 68 and 69 filled approximal surfaces, respectively. The tee...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000262369
更新日期:1997-01-01 00:00:00
abstract::Mixed continuous cultures of Streptococcus species were obtained, using complex carbohydrate (mucin) as a source of nutrients, to study the ecological effects of oxygen and the lactoperoxidase system. S. mutans NCTC 10449 was unable to grow as a pure culture on mucin, but attained a significant population size in the ...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000261511
更新日期:1993-01-01 00:00:00
abstract::Fluoride is a well-studied and widely used agent for the prevention of dental caries. Although dental caries is strongly related to cariogenic biofilms, the effect of brief fluoride treatment on the virulence properties of biofilms has not been well studied. This study evaluated the effect of a 1-min fluoride treatmen...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000434731
更新日期:2015-01-01 00:00:00
abstract::The aim of this study was to identify risk determinants leading to early childhood caries (ECC) and visible plaque (VP) in toddlers. Data for mother-child pairs participating in the Growing Up in Singapore towards Healthy Outcomes (GUSTO) birth cohort were collected from pregnancy to toddlerhood. Oral examinations wer...
journal_title:Caries research
pub_type: 杂志文章
doi:10.1159/000471811
更新日期:2017-01-01 00:00:00