scholarly journals A Study on Relation to Change in Amount of Interdental Space, Dental Plaque, and Dental Caries in 1-3-Year-Old Children.

1994 ◽  
Vol 44 (2) ◽  
pp. 194-201
Author(s):  
Nobuhiro TAGUCHI ◽  
Koji KAWASAKI ◽  
Youichi IIJIMA ◽  
Okiuji TAKAGI
Keyword(s):  
Dental Caries ◽  
Dental Plaque

scholarly journals The Impact of Carbohydrate Quality on Dental Plaque pH: Does the Glycemic Index of Starchy Foods Matter for Dental Health?

Nutrients ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 2711
Author(s):  
Fiona S. Atkinson ◽  
Jouhrah Hussain Khan ◽  
Jennie C. Brand-Miller ◽  
Joerg Eberhard
Keyword(s):  
Dental Caries ◽  
Glycemic Index ◽  
Dental Plaque ◽  
Dental Health ◽  
Oral Glucose ◽  
White Bread ◽  
Increased Risk ◽  
Plaque Ph ◽  
The Impact ◽  
Starchy Foods

Sugary carbohydrate foods have long been associated with increased risk of dental caries formation, but the dental health impact of starchy carbohydrates, particularly those with a high glycemic index (GI), has not been well examined. Aim: To investigate the effect of different starchy foods varying in their GI, on acute changes in dental plaque pH. Methods: In a series of sub-studies in healthy adults, common starchy carbohydrate foods, including white bread, instant mashed potatoes, canned chickpeas, pasta, breakfast cereals, white rice, and an oral glucose solution were consumed in fixed 25 g available carbohydrate portions. The change in dental plaque pH was assessed postprandially over 1 h and capillary plasma glucose was measured at regular intervals over 2 h. Results: Higher GI starchy foods produced greater acute plaque pH decreases and larger overall postprandial glucose responses compared to lower GI starchy foods (white bread compared with canned chickpeas: −1.5 vs. −0.7 pH units, p = 0.001, and 99 ± 8 mmol/L min vs. 47 ± 7 mmol/L min, p = 0.026). Controlling for other food factors (food form and nutritional composition), lower GI versions of matched food pairs produced smaller plaque pH excursions compared to higher GI versions of the same food. Using linear regression analysis, the GI value of starchy carbohydrate foods explained 60% of the variation in maximum plaque pH nadir and 64% of the variation in overall acute dental plaque pH excursion (p < 0.01). Conclusion: The findings imply that starchy foods, in particular those with a higher GI, may play a role in increasing the risk of dental caries.

scholarly journals Oral Health Literacy and Oral Health Status among Undergraduate University Students

2021 ◽  
Vol 6 (2) ◽  
pp. 13-22
Author(s):  
Azlan Jaafar ◽  
Normaliza AB Malik ◽  
aws hashim ali alkadhim
Keyword(s):  
Health Status ◽  
Oral Health ◽  
Health Literacy ◽  
Dental Caries ◽  
Periodontal Disease ◽  
Undergraduate Students ◽  
Dental Plaque ◽  
Oral Health Status ◽  
Weak Correlation ◽  
Oral Health Literacy

Objective: To identify the prevalence of caries, plaque score, and periodontal disease and explore the correlations between oral health literacy scores and oral health status among undergraduate students. Materials and Methods: A cross-sectional study was conducted with a group of undergraduate students using the Malay version of the Oral Health Literacy (OHL) Index. A stratified random sampling technique was used to select the samples. Clinical oral examinations were conducted by a single trained examiner using a Community Periodontal Index (CPI) probe and a mouth mirror. Data analysis was conducted using statistical tests contained in SPSS version 26, and statistical significance was set at p<0.05. Results: A total of 280 students were recruited into the study. The prevalence of caries and periodontal disease was 58.9 and 13.2%, respectively. There was a significant association between OHL and field of study (p<0.001). There was also a significant negative but weak correlation between OHL and dental plaque scores (r= -0.147; p=0.014). A significant positive but weak correlation was found between dental plaque scores and dental caries (r= 0.135; p=0.024) and periodontal pocket depth (r= 0.168; p=0.005). Conclusion: The prevalence of dental caries was high, while the prevalence of periodontal diseases was low in this study. OHL correlated significantly with dental plaque scores and field of the study. Thus, OHL assessment is essential to understand a person’s OHL levels and can be considered a screening tool for early detection of poor oral hygiene.

scholarly journals The Dental Aesthetic Index and Its Association with Dental Caries, Dental Plaque and Socio-Demographic Variables in Schoolchildren Aged 12 and 15 Years

2021 ◽  
Vol 18 (18) ◽  
pp. 9741
Author(s):  
Paula Fernández-Riveiro ◽  
Nerea Obregón-Rodríguez ◽  
María Piñeiro-Lamas ◽  
Almudena Rodríguez-Fernández ◽  
Ernesto Smyth-Chamosa ◽  
...  
Keyword(s):  
Public Schools ◽  
Dental Caries ◽  
Old Age ◽  
Dental Plaque ◽  
Demographic Data ◽  
Demographic Variables ◽  
Caries Experience ◽  
Age Group ◽  
Cross Sectional ◽  
Two Samples

The Dental Aesthetic Index (DAI) was determined in 12- and 15-year-old schoolchildren to ascertain the prevalence of malocclusion and to assess its association with dental caries experience, dental plaque accumulation, and socio-demographic variables. We performed a cross-sectional study with a stratified two-stage sampling design. An oral health survey and oral examination were conducted, and socio-demographic data were recorded. The sample comprised 1453 schoolchildren aged 12 (868) and 15 (585). These two samples were analyzed separately because statistically significant differences were found: the 12-year-old age group displayed a higher frequency of schoolchildren who attended state-run public schools (p = 0.004) and belonged to a lower social class (p = 0.001); the 15-year-old age group registered higher levels of caries (p = 0.001) and lower levels of dental plaque (p < 0.001). The malocclusion was 9.5% higher (p = 0.001), and the global mean DAI score was likewise higher among the 12-year-olds (p < 0.001). The multivariate regression analysis not only showed that caries and dental plaque were the variables that were the most strongly associated with malocclusion, but that caries (OR = 1.5) and dental plaque (OR > 2) were also risk factors for malocclusion in both groups. In conclusion, this study revealed a higher prevalence of malocclusion and dental plaque at age 12. A higher risk of caries and dental plaque was found to be related to the presence of malocclusion in both age groups.

scholarly journals Antimicrobial and Substantivity Properties of Silver Nanoparticles against Oral Microbiomes Clinically Isolated from Young and Young-Adult Patients

2019 ◽  
Vol 2019 ◽  
pp. 1-14 ◽  
Author(s):  
León Francisco Espinosa-Cristóbal ◽  
Carolina Holguín-Meráz ◽  
Erasto Armando Zaragoza-Contreras ◽  
Rita Elizabeth Martínez-Martínez ◽  
Alejandro Donohue-Cornejo ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Young Adult ◽  
Dental Caries ◽  
Periodontal Disease ◽  
Dental Plaque ◽  
Bacterial Species ◽  
Inhibitory Effect ◽  
Oral Bacteria ◽  
Oral Microbiome ◽  
Oral Biofilms

The dental plaque is an oral microbiome hardly associated to be the etiological agent of dental caries and periodontal disease which are still considered serious health public problems. Silver nanoparticles (AgNPs) have demonstrated to have good antimicrobial properties affecting a wide variety of microorganisms, including oral bacteria; however, there is no scientific information that has evaluated the antimicrobial effect of AgNPs against clinical oral biofilms associated with dental caries and periodontal disease. The aim of this study was to determine the antimicrobial and substantivity effects of AgNPs in oral biofilms isolated clinically from patients with dental caries and periodontal disease. Sixty-seven young and young-adult subjects with dental caries and periodontal disease were clinically sampled through the collection of subgingival dental plaque. The inhibitory effect of AgNPs was performed with standard microbiological assays by triplicate using two sizes of particle. Polymerase chain reaction (PCR) assay was used to identify the presence of specific bacterial species. All AgNPs showed an inhibitory effect for all oral biofilms for any age and, generally, any gender (p>0.05); however, the effectiveness of the antimicrobial and substantivity effects was related to particle size, time, and gender (p<0.05). The identified microorganisms were S. mutans, S. sobrinus, S. sanguinis, S. gordonii, S. oralis, P. gingivalis, T. forsythia, and P. intermedia. The AgNPs could be considered as a potential antimicrobial agent for the control and prevention of dental caries and periodontal disease.

scholarly journals Genetic Analysis of Mutacin B-Ny266, a Lantibiotic Active against Caries Pathogens

2020 ◽  
Vol 202 (12) ◽  
Author(s):  
Delphine Dufour ◽  
Abdelahhad Barbour ◽  
Yuki Chan ◽  
Marcus Cheng ◽  
Taimoor Rahman ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Dental Caries ◽  
Streptococcus Mutans ◽  
Dental Plaque ◽  
Oral Bacteria ◽  
Oral Streptococci ◽  
Chromosomal Locus ◽  
Content Type ◽  
Genes Encoding ◽  
Plaque Biofilm

ABSTRACT Bacteriocins are ribosomally synthesized proteinaceous antibacterial peptides. They selectively interfere with the growth of other bacteria. The production and secretion of bacteriocins confer a distinct ecological advantage to the producer in competing against other bacteria that are present in the same ecological niche. Streptococcus mutans, a significant contributor to the development of dental caries, is one of the most prolific producers of bacteriocins, known as mutacins in S. mutans. In this study, we characterized the locus encoding mutacin B-Ny266, a lantibiotic with a broad spectrum of activity. The chromosomal locus is composed of six predicted operon structures encoding proteins involved in regulation, antimicrobial activity, biosynthesis, modification, transport, and immunity. Mutacin B-Ny266 was purified from semisolid cultures, and two inhibitory peptides, LanA and LanA′, were detected. Both peptides were highly modified. Such modifications include dehydration of serine and threonine and the formation of a C-terminal aminovinyl-cysteine (AviCys) ring. While LanA peptide alone is absolutely required for antimicrobial activity, the presence of LanA′ enhanced the activity of LanA, suggesting that B-Ny266 may function as a two-peptide lantibiotic. The activation of lanAA′ expression is most likely controlled by the conserved two-component system NsrRS, which is activated by LanA peptide but not by LanA′. The chromosomal locus encoding mutacin B-Ny266 was not universally conserved in all sequenced S. mutans genomes. Intriguingly, the genes encoding LanAA′ peptides were restricted to the most invasive serotypes of S. mutans. IMPORTANCE Although dental caries is largely preventable, it remains the most common and costly infectious disease worldwide. Caries is initiated by the presence of dental plaque biofilm that contains Streptococcus mutans, a species extensively characterized by its role in caries development and formation. S. mutans deploys an arsenal of strategies to establish itself within the oral cavity. One of them is the production of bacteriocins that confer a competitive advantage by targeting and killing closely related competitors. In this work, we found that mutacin B-Ny266 is a potent lantibiotic that is effective at killing a wide array of oral streptococci, including nearly all S. mutans strains tested. Lantibiotics produced by oral bacteria could represent a promising strategy to target caries pathogens embedded in dental plaque biofilm.

scholarly journals Dental caries and plaque formation from diets containing sucrose or glucose in gnotobiotic rats infected with Streptococcus strain IB-1600

1973 ◽  
Vol 29 (2) ◽  
pp. 221-228 ◽  
Author(s):  
T. H. Grenby ◽  
Frances M. Paterson ◽  
R. A. Cawson
Keyword(s):  
Dental Caries ◽  
Dental Plaque ◽  
Plaque Formation ◽  
Small Scale ◽  
Single Strain ◽  
High Sugar ◽  
Controlled Conditions ◽  
Significant Difference

1. Techniques were devised for the operation of a new small-scale gnotobiotic rat unit.2. The unit was then used to compare the cariogenicity of sucrose and glucose under carefully controlled conditions in the presence of a single strain of a streptococcus, as gnotobiotic experiments by other workers had given conflicting results.3. Streptococcus IB-1600 was implanted into thirty-four rats, which were then fed on high-sugar diets under gnotobiotic conditions for 5 or 8 weeks from weaning. The level of caries was significantly higher on the sucrose than on the glucose diet, but there was no significant difference in the extent of soft coronal dental plaque.

Antimicrobial and Antibiofilm Activity of Citral and its Derivative against Microflora from Dental Plaque

2020 ◽  
Vol 5 (2) ◽  
pp. 120-126
Author(s):  
S.V. Ambade ◽  
N.M. Deshpande ◽  
S.S. Kale ◽  
V.N. Ambade
Keyword(s):  
Dental Caries ◽  
Essential Oil ◽  
Dental Plaque ◽  
Biofilm Formation ◽  
Periodontal Diseases ◽  
Bacterial Species ◽  
Antibiofilm Activity ◽  
Oral Microflora ◽  
Lemon Grass ◽  
First Time

Dental biofilms inhabit the oral cavity in form of dental plaque which then causes dental caries and periodontal diseases worldwide. Lemon grass essential oil (LGEO) has been reported to exhibit antimicrobial and antibiofilm activity against. This study represents the potential of citral and derivatives as antimicrobial and antibiofilm agent against dental microflora. Three bacterial species chiefly responsible for biofilm formation, and five prime colonizer of dental plaque were selected to represent dental microflora. Citral and its derivative viz. citral semicarbazone, exhibited antimicrobial and antibiofilm activity against the selected organisms. For the first time, any citral derivative has ever demonstrated to exhibit antimicrobial and antibiofilm activity against the oral microflora. However, study could not established citral or its derivatives as more effective, powerful and better herbal material as compared to LGEO to control the oral microflora associated with dental plaque.

Sign in / Sign up

Export Citation Format

Share Document