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Caries Research

Mohammad Javad Mokhtari, Fatemeh Koohpeima, Feyzollah Hashemi-Gorji
This case-control study aimed to investigate the effect of rs11003125 in dental caries. For this purpose, a total number of 404 individuals - from Fars Province in Iran - were studied. The technique of this research was the tetra-primer amplification-refractory mutation system (ARMS)-PCR. Dental caries prevalence among the 404 individuals was assessed by counting the number of decayed, missing, and filled teeth. In this research, individuals were divided into two groups: cases (n = 238) and controls (n = 166), and the peripheral blood samples were used to extract the genomic DNA...
June 14, 2018: Caries Research
Viivi Karoliina Alaraudanjoki, Salla Koivisto, Paula Pesonen, Minna Männikkö, Jukka Leinonen, Leo Tjäderhane, Marja-Liisa Laitala, Adrian Lussi, Vuokko Anna-Marketta Anttonen
Erosive tooth wear is defined as irreversible loss of dental tissues due to intrinsic or extrinsic acids, exacerbated by mechanical forces. Recent studies have suggested a higher prevalence of erosive tooth wear in males, as well as a genetic contribution to susceptibility to erosive tooth wear. Our aim was to examine erosive tooth wear by performing a genome-wide association study (GWAS) in a sample of the Northern Finland Birth Cohort 1966 (n = 1,962). Erosive tooth wear was assessed clinically using the basic erosive wear examination...
June 13, 2018: Caries Research
Valerie Steiger-Ronay, Sibel Tektas, Thomas Attin, Adrian Lussi, Klaus Becker, Daniel B Wiedemeier, Barbara Beyeler, Thiago S Carvalho
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) measurements and profilometry all specimens were subjected to erosion (2 min, 1% citric acid, pH: 3.6, 37°C). SMH was determined again, and the depths of the Knoop indentations were calculated. Thereafter, specimens were incubated in human saliva (group 1 - no incubation/control, group 2 - 0...
June 7, 2018: Caries Research
Carolina V Lima, Livia M A Tenuta, Jaime A Cury
Knowledge about fluoride delivery to oral fluids from foods cooked with fluoridated water and salt is scarce, and no study has evaluated fluoride concentrations in saliva or biofilm during meal consumption. In this randomized double-blind crossover study, 12 volunteers ingested meals (rice, beans, meat, and legumes) prepared with nonfluoridated water and salt (control group), fluoridated water (0.70 mg F/L; water group), and fluoridated salt (183.7 mg F/kg; salt group). Whole saliva was collected before meal ingestion, during mastication, and up to 2 h after meal ingestion...
June 7, 2018: Caries Research
Manuela S Spinola, Diego Figueiredo Nóbrega, Altair Antoninha Del Bel Cury, Antonio Pedro Ricomini Filho, Jaime Aparecido Cury, Livia Maria Andaló Tenuta
Extracellular polysaccharides (EPS) could increase the penetration of fluoride through dental biofilm, reducing its cariogenicity. We measured the concentration of fluoride in EPS-containing (EPS+) or not-containing (EPS-) Streptococcus mutans bacterial pellets resembling test biofilms, before and up to 60 min after a 0.05% NaF rinse in situ. Fluoride penetration and clearance were higher in EPS+ bacterial pellets. The data suggest that EPS enhances fluoride penetration, but also accelerates fluoride clearance from dental biofilms...
June 6, 2018: Caries Research
Rayssa Ferreira Zanatta, Daniele Mara da Silva Ávila, Karen Mayumi Miyamoto, Carlos Rocha Gomes Torres, Alessandra Bühler Borges
This study investigated the effect of surfactants associated with sodium fluoride (NaF) on enamel erosion prevention, using an erosion-remineralization in vitro model. Sodium lauryl sulfate (SLS), polysorbate 20 (P20), and cocoamidopropyl betaine (CAPB) were tested, at concentrations of 1.0 and 1.5%, and associated or not with NaF (275 ppm). The control groups were distilled water and the NaF solution. Bovine enamel samples (n = 12) were prepared and submitted to a 5-day cycling model: acid challenge (0.3% citric acid, pH 2...
June 6, 2018: Caries Research
Branca Heloisa Oliveira, Anjana Rajendra, Analia Veitz-Keenan, Richard Niederman
OBJECTIVES: To investigate whether silver diamine fluoride (SDF) is effective in preventing new caries lesions in primary teeth when compared to placebo or active treatments. METHODS: Systematic review (CRD42016036963) of controlled clinical trials. Searches were performed in 9 electronic databases, 5 registers of ongoing trials, and reference lists of identified review articles. Two researchers carried out data extraction and quality appraisal independently. The primary outcome was the difference in caries increment (decayed, missing, and filled surfaces or teeth - dmfs or dmft) between SDF and control groups...
June 6, 2018: Caries Research
Diego Figueiredo Nóbrega, Tarcísio Jorge Leitão, Jaime Aparecido Cury, Livia Maria Andaló Tenuta
It has been suggested that fluoride binding to dental biofilm is enhanced when more bacterial calcium binding sites are available. However, this was only observed at high calcium and fluoride concentrations (i.e., when CaF2 precipitation may have occurred). We assessed fluoride binding to Streptococcus mutans pellets treated with calcium and fluoride at concentrations allowing CaF2 precipitation or not. Increasing calcium concentration resulted in a linear increase (p < 0.01) in fluoride concentration only in the pellets in which CaF2 precipitated...
June 6, 2018: Caries Research
Wei-Te Huang, Saroash Shahid, Paul Anderson
The aim was to validate a novel protocol to measure the cariostatic efficacies of demineralization inhibitors by repeating previous SMR (scanning microradiography) studies investigating the dose response of Zn2+ and F- on demineralization kinetics in vitro using real-time Ca2+ ion selective electrodes (ISEs). In this study, Ca2+ release was used as a proxy for the extent of demineralization. Forty-eight hydroxyapatite (HAP) discs were allocated into 16 groups (n = 3) and adding either increasing [Zn2+], or [F-], similar to those used in the previous SMR studies...
May 25, 2018: Caries Research
Angel Y Sanchez, Caroline L de Oliveira, Thais C Negrini, Lina N Hashizume, Anderson T Hara, Marisa Maltz, Rodrigo A Arthur
There is limited evidence that arginine-containing fluoridated dentifrices (AFD) have a better anticaries effect than regular fluoridated dentifrices (FD), especially in subjects at a higher risk for caries development. This study aimed to assess the effect of AFD on enamel demineralization and on the microbial and biochemical compositions of biofilm formed under different frequencies of sucrose exposure. It consisted of an in situ split-mouth design, where 12 adult volunteers who used FD for at least 2 months prior to the beginning of this study wore acrylic palatal appliances containing 4 bovine enamel specimens (1 pair at each side of the appliance) during 2 phases of 14 days each...
May 4, 2018: Caries Research
Ana Flávia Granville-Garcia, Monalisa Cesarino Gomes, Matheus França Perazzo, Carolina Castro Martins, Mauro Henrique Nogueira Guimarães Abreu, Saul Martins Paiva
The aim of the present study was to evaluate the influence of the severity/activity of dental caries as well as sense of coherence (SOC) and locus of control (LOC) on oral health-related quality of life (OHRQoL) among 5-year-old children. A cross-sectional study was conducted involving 769 children at schools in a city in northeast Brazil. Parents/caregivers answered validated questionnaires addressing SOC and LOC. The children and parents/caregivers answered their respective modules of the Brazilian version of the Scale of Oral Health Outcomes for 5-year-old children (SOHO-5)...
May 3, 2018: Caries Research
Danilo Augusto de Holanda Ferreira, Carolina Patrícia Aires, Regina Célia Bressan Queiroz De Figueiredo, Frederico Barbosa de Sousa
The amount of organic material in the cariogenic environment correlates with the amount of organic material incorporated in carious enamel. The incorporated organic material may be expected to reduce the pore volumes available for remineralization and resin infiltration, but these expected outcomes have not yet been quantified. We tested the effect of the amount of organic content in the cariogenic agent on remineralization and the resin-occluded pore volume in artificial subsurface enamel caries. An acid gel (organic-rich; G1) and an aqueous solution (organic-poor; G2) were used to induce subsurface lesions in human enamel...
May 3, 2018: Caries Research
Fatemeh Ahmadi-Motamayel, Mohammad Taghi Goodarzi, Ali Mahdavinezhad, Zohreh Jamshidi, Mohammad Darvishi
Dental caries is the most common, chronic, noncommunicable, preventable oral disease worldwide. Oxidation may play an important role in dental caries initiation and progression. Antioxidants in body fluids protect cells. The aim of this study was to evaluate salivary and serum total antioxidant capacity (TAC) and malondialdehyde (MDA) levels in dental caries. A total of 118 healthy caries-free and caries-active male and female students participated. Caries was detected clinically. Unstimulated whole-saliva samples and blood samples were obtained...
April 26, 2018: Caries Research
Firoze Manji, Gunnar Dahlen, Ole Fejerskov
We review the literature on the oral microbiome and the role of the microbiota in the development of dental caries and periodontitis. While most research has been focused on identifying one or more specific determinants of these diseases, the results have provided limited predictive value and have not been able to explain the variation in the distribution of these diseases observed in epidemiological or clinical studies. Drawing on existing knowledge about the nature of the oral microbiota, we suggest that a stochastic model based on the Weiner process provides simple and parsimonious explanations for the pathogenesis of both caries and periodontitis, making few assumptions, and providing explanations for phenomena that have hitherto proved difficult, or have required complex arguments, to explain...
April 25, 2018: Caries Research
(no author information available yet)
No abstract text is available yet for this article.
April 19, 2018: Caries Research
Alice S Pinto, Luana Severo Alves, Marisa Maltz, Cristiano Susin, Julio Eduardo A Zenkner
This cross-sectional study assessed the relationship between fixed orthodontic treatment duration and caries activity. Two hundred and sixty 10- to 30-year-olds were divided into 4 groups (n = 65): no fixed orthodontic appliances (G0), orthodontic treatment for 1 year (G1), 2 years (G2), or 3 years (G3). Orthodontic treatment duration was significantly associated with active caries: prevalence was 1.5% for G0, 27.7% for G1, and 72.3% for G2 and G3; the median number of lesions was 0 for G0 and G1 and 2 for G2 and G3...
April 17, 2018: Caries Research
Audrey C C Hollanders, Nicolien K Kuper, Tamires T Maske, Marie-Charlotte D N J M Huysmans
In situ caries research serves as a bridge between clinical research and laboratory studies. In this kind of research, volunteers wear a removable intraoral splint or prosthesis containing research samples. Many different in situ models exist to investigate secondary caries. This systematic review compared currently existing secondary caries models and their lesion progression per day values. MATERIALS AND METHODS: Three databases (Medline, Embase, and Cochrane) were searched for relevant literature...
April 5, 2018: Caries Research
Hyo-Jung Oh, Hyeon-Mi Choi, Chonghyuck Kim, Jae-Gyu Jeon
Water fluoridation has been cited as one of the top 10 public health achievements of the 20th century. Herein, we analyzed water fluoridation articles related to dental caries published in PubMed between 1950 and 2016 using informetrics and linguistic methods to investigate trends in the studies. To this aim, queries such as "dental caries and (water fluoridation or fluoridated water)," "dental caries and (fluoride or fluoridation)," and "dental caries" were submitted to PubMed to retrieve information about articles on water fluoridation within the area of dental caries and fluoride - their titles, abstracts, publication dates, author affiliations, and publication journals...
April 4, 2018: Caries Research
Fabian Cieplik, Fabian Wimmer, Denise Muehler, Thomas Thurnheer, Georgios N Belibasakis, Karl-Anton Hiller, Tim Maisch, Wolfgang Buchalla
Antimicrobial photodynamic therapy (aPDT) may be useful as a supportive antimicrobial measure for caries-active subjects. In this study, the antimicrobial efficacy of aPDT with a phenalen-1-one photosensitizer was evaluated in a novel in vitro biofilm model comprising Actinomyces naeslundii, Actinomyces odontolyticus, and Streptococcus mutans and was compared to chlorhexidine. The proposed biofilm model allows high-throughput screening for antimicrobial efficacy while exhibiting a differentiated response to different antimicrobial approaches...
April 4, 2018: Caries Research
Danika Downey, Joseph Dennison, George J Eckert, Susan E Flannagan, Gisele F Neiva, Peter Yaman, Carlos González-Cabezas
The aim of this study was to evaluate the fluoride release from differently formulated 5% NaF varnishes into unstimulated whole saliva in vivo. The fluoride concentration in unstimulated whole saliva was determined after the application of 3 different 5% NaF varnishes (5% NaF, 5% NaF + tricalcium phosphate [TCP], and 5% NaF + amorphous calcium phosphate [ACP]) or a placebo. Fifteen subjects were recruited and enrolled following Institutional Review Board approval based upon the inclusion/exclusion criteria of this study...
April 3, 2018: Caries Research
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