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Becks H. The Physical Consistency of Food and Refined Carbohydrate Restrictions—Their Effect on Caries. J Dent Res 2016; 27:405-12. [DOI: 10.1177/00220345480270031601] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Slanetz L, Brown EA. Studies on the Numbers of Bacteria in the Mouth and their Reduction by the Use of Oral Antiseptics. J Dent Res 2016; 28:313-23. [DOI: 10.1177/00220345490280031601] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- L.W. Slanetz
- Department of Bacteriology, University of New Hampshire, Durham, N. H
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KIRCHHEIMER WF, DOUGLAS HC. The Failure of Ammonium Ions to Inhibit the Growth of Oral Lactobacilli. J Dent Res 2016; 29:320-4. [PMID: 15428566 DOI: 10.1177/00220345500290031101] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Affiliation(s)
| | - June J. Teachout
- Hygienic Laboratory, University of Michigan, Ann Arbor, Michigan
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Li Y, Argimón S, Schön CN, Saraithong P, Caufield PW. Characterizing Diversity of Lactobacilli Associated with Severe Early Childhood Caries: A Study Protocol. ADVANCES IN MICROBIOLOGY 2015; 5:9-20. [PMID: 26413427 PMCID: PMC4583140 DOI: 10.4236/aim.2015.51002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Lactobacilli have been consistently associated with dental caries for decades; however, knowledge of this group of bacteria in the etiology of the disease is limited to quantitative elucidation. Nowadays, explicit identification of oral Lactobacillus species is possible, despite their taxonomic complexity. Here we describe a combined approach involving both cultivation and genetic methods to ascertain and characterize the diversity and abundance of the Lactobacillus population in the oral cavities of children with severe early childhood caries (S-ECC). Eighty 3- to 6-year-old children (40 S-ECC and 40 caries free) who were seeking dental care at the Pediatric Dental Clinic of Bellevue Hospital in New York City were invited to participate in this study. Clinical data on socio-demographic information and oral health behavior were obtained from the primary caregiver. The data included a detailed dental examination, children's medical history, and a questionnaire survey. Combined non-stimulated saliva and supra-gingival plaque samples were collected from each child and cultivated on selective media for quantitative measures of lactobacilli levels. The procedure for Lactobacillus species screening will include the random selection of 50 colonies per plate, extraction of DNA from each colony, and genotyping by arbitrarily primed polymerase chain reaction (AP-PCR). Each unique Lactobacillus AP-PCR genotype will be selected for taxonomic assessment by 16S rRNA gene sequencing analysis. Lactobacillus species will be identified by comparing the 16S rRNA sequences with the Ribosomal Database and the Human Oral Microbiome Database. Meanwhile, the same set of clinical samples will be independently subjected to genomic DNA isolation, 16S rRNA amplification with Lactobacillus genus-specific primers, sequencing, and taxonomic identification, both at genus and species levels with a customized pipeline. The distribution and phylogenetic differences of these Lactobacillus species will be compared between children with or without S-ECC. One of the main objectives of this study is to establish a study protocol for the identification and characterization of lactobacilli in the oral cavity. Future caries risk assessments can include lactobacilli counts (quantitative) and the presence/absence of specific cariogenic genetic signatures of a Lactobacillus species (qualitative) associated with S-ECC.
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Affiliation(s)
- Yihong Li
- Department of Basic Science and Craniofacial Biology, College of Dentistry, New York University, New York, USA
| | - Silvia Argimón
- Department of Cariology and Comprehensive Care, College of Dentistry, New York University, New York, USA
| | - Catherine N. Schön
- Department of Cariology and Comprehensive Care, College of Dentistry, New York University, New York, USA
| | - Prakaimuk Saraithong
- Department of Basic Science and Craniofacial Biology, College of Dentistry, New York University, New York, USA
| | - Page W. Caufield
- Department of Cariology and Comprehensive Care, College of Dentistry, New York University, New York, USA
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Blumhagen A, Singh P, Mustapha A, Chen M, Wang Y, Yu Q. Plasma deactivation of oral bacteria seeded on hydroxyapatite disks as tooth enamel analogue. AMERICAN JOURNAL OF DENTISTRY 2014; 27:84-90. [PMID: 25000666 PMCID: PMC4090609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
PURPOSE To study the plasma treatment effects on deactivation of oral bacteria seeded on a tooth enamel analogue. METHODS A non-thermal atmospheric pressure argon plasma brush was used to treat two different Gram-positive oral bacteria including Lactobacillus acidophilus (L. acidophilus) and Streptococcus mutans (S. mutans). The bacteria were seeded on hydroxyapatite (HA) disks used as tooth enamel analogue with three initial bacterial seeding concentrations: a low inoculum concentration between 2.1 x 10(8) and 2.4 x 10(8) cfu/mL, a medium inoculum concentration between 9.8x10(8) and 2.4 x 10(9) cfu/mL, and a high inoculum concentration between 1.7 x 10(10) and 3.5 x 10(10) cfu/mL. The bacterial survivability upon plasma exposure was examined in terms of plasma exposure time and oxygen addition into the plasmas. SEM was performed to examine bacterial morphological changes after plasma exposure. RESULTS The experimental data indicated that a 13-second plasma exposure time completely killed all the bacteria when initial bacterial seeding density on HA surfaces was less than 6.9 x 10(6) cfu/cm2 for L. acidophilus and 1.7 x 10(7) cfu/cm2 for S. mutans, which resulted from low initial seeding inoculum concentration between 2.1 x 10(8) and 2.4 x 10(8) cfu/mL. Plasma exposure of the bacteria at higher initial bacterial seeding density obtained with high initial seeding inoculum concentration, however, only resulted in approximately 1.5 to 2 log reduction and approximately 2 to 2.5 log reduction for L. acidophilus and S. mutans, respectively. It was also noted that oxygen addition into the argon plasma brush did not affect the plasma deactivation effectiveness. SEM images showed that plasma deactivation mainly occurred with the top layer bacteria, while shadowing effects from the resulting bacterial debris reduced the plasma deactivation of the underlying bacteria.
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Affiliation(s)
- Adam Blumhagen
- Center for Surface Science and Plasma Technology, Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, MO 65211, USA
| | - Prashant Singh
- Department of Food Science, University of Missouri, Columbia, MO 65211, USA
| | - Azlin Mustapha
- Department of Food Science, University of Missouri, Columbia, MO 65211, USA
| | - Meng Chen
- Nanova, Inc., Columbia, MO 65211, USA
| | - Yong Wang
- Center for Research on Interfacial Structure & Properties, School of Dentistry, University of Missouri-Kansas City, Kansas City, MO 64108, USA
| | - Qingsong Yu
- Center for Surface Science and Plasma Technology, Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, MO 65211, USA
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Yang B, Chen J, Yu Q, Li H, Lin M, Mustapha A, Hong L, Wang Y. Oral bacterial deactivation using a low-temperature atmospheric argon plasma brush. J Dent 2011; 39:48-56. [PMID: 20951184 PMCID: PMC3010533 DOI: 10.1016/j.jdent.2010.10.002] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2009] [Revised: 08/07/2010] [Accepted: 10/06/2010] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVE To study the plasma treatment effects on deactivation effectiveness of oral bacteria. METHODS A low temperature atmospheric argon plasma brush were used to study the oral bacterial deactivation effects in terms of plasma conditions, plasma exposure time, and bacterial supporting media. Oral bacteria of Streptococcus mutans and Lactobacillus acidophilus with an initial bacterial population density between 1.0×10(8) and 5.0×10(8)cfu/ml were seeded on various media and their survivability with plasma exposure was examined. Scanning electron microscopy was used to examine the morphological changes of the plasma treated bacteria. Optical absorption was used to determine the leakage of intracellular proteins and DNAs of the plasma treated bacteria. RESULTS The experimental data indicated that the argon atmospheric plasma brush was very effective in deactivating oral bacteria. The plasma exposure time for a 99.9999% cell reduction was less than 15s for S. mutans and within 5 min for L. acidophilus. It was found that the plasma deactivation efficiency was also dependent on the bacterial supporting media. With plasma exposure, significant damages to bacterial cell structures were observed with both bacterium species. Leakage of intracellular proteins and DNAs after plasma exposure was observed through monitoring the absorbance peaks at wavelengths of 280 nm and 260 nm, respectively. CONCLUSION The experimental results from this study indicated that low temperature atmospheric plasma treatment was very effective in deactivation of oral bacteria and could be a promising technique in various dental clinical applications such as bacterial disinfection and caries early prevention.
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Affiliation(s)
- Bo Yang
- School of energy and power engineering of Xi’an Jiao Tong University, Xi’an, Shaanxi, 710049, P.R. China
| | - Jierong Chen
- School of energy and power engineering of Xi’an Jiao Tong University, Xi’an, Shaanxi, 710049, P.R. China
| | - Qingsong Yu
- Center for Surface Science and Plasma Technology, Department of Mechanical and Aerospace Engineering, University of Missouri-Columbia, Columbia, Missouri 65211, USA
| | - Hao Li
- Center for Surface Science and Plasma Technology, Department of Mechanical and Aerospace Engineering, University of Missouri-Columbia, Columbia, Missouri 65211, USA
| | - Mengshi Lin
- Food Science Program, University of Missouri-Columbia, Columbia, Missouri 65211, USA
| | - Azlin Mustapha
- Food Science Program, University of Missouri-Columbia, Columbia, Missouri 65211, USA
| | - Liang Hong
- School of Dentistry, University of Missouri-Kansas City, Kansas City, MO 64108, USA
| | - Yong Wang
- School of Dentistry, University of Missouri-Kansas City, Kansas City, MO 64108, USA
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Burt BA, Eklund SA, Morgan KJ, Larkin FE, Guire KE, Brown LO, Weintraub JA. The effects of sugars intake and frequency of ingestion on dental caries increment in a three-year longitudinal study. J Dent Res 1988; 67:1422-9. [PMID: 3053822 DOI: 10.1177/00220345880670111201] [Citation(s) in RCA: 122] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
A three-year longitudinal study was carried out with a group of children, initially aged 11-15, residing in non-fluoridated rural communities in south-central Michigan. This report analyzes the relation between caries increment and consumption of sugars from all sources to see if accepted relationships have changed with the caries decline in the United States. There were 499 children who provided three or more 24-hour dietary recall interviews, and who received dental examinations at baseline and after three years. Caries increment averaged 2.91 DMFS over the three years, with 81% of new lesions on pit-and-fissure surfaces. Consumption of sugars from all sources averaged 156 g per day for males and 127 g per day for females, an average of 52 kg per person per year. Sugars constituted one-quarter of total caloric intake for both boys and girls, and the average number of eating occasions per day was 4.3. Children who consumed a higher proportion of their total energy intake as sugars had a higher increment of approximal caries, though there was little relation to pit-and-fissure caries. The average number of daily eating occasions was not related to caries increment, nor was the average number of sugary snacks (defined as foods with 15% or more of sugars) consumed between meals, but the average consumption of between-meal sugars was related to the approximal caries increment. When children were categorized by high caries increment compared with no caries increment, a tendency toward more frequent snacks was seen in the high-caries children.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- B A Burt
- School of Public Health, University of Michigan, Ann Arbor 48109-2029
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Stolpe JR. Chemical and bacteriological tests for determining susceptibility to, and activity of dental caries; a review. J Public Health Dent 1970; 30:141-55. [PMID: 4991274 DOI: 10.1111/j.1752-7325.1970.tb00556.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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SHKLAIR IL, ENGLANDER HR, STEIN LM, KESEL RG. Preliminary report on the effect of complete mouth rehabilitation on oral lactobacilli counts. J Am Dent Assoc 1956; 53:155-8. [PMID: 13345587 DOI: 10.14219/jada.archive.1956.0159] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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NIZEL AE. Practical nutritional management of rampant caries. ORAL SURGERY, ORAL MEDICINE, AND ORAL PATHOLOGY 1954; 7:865-72. [PMID: 13185604 DOI: 10.1016/0030-4220(54)90186-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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RICKLES NH. The estimation of dental caries activity by a new colorimetric laboratory test; a preliminary investigation. J Dent Res 1953; 32:3-17. [PMID: 13052748 DOI: 10.1177/00220345530320011501] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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A Bacteriologic Caries Survey Method Applied to Plantation Children. J Am Dent Assoc 1948; 36:53-5. [DOI: 10.14219/jada.archive.1948.0003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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JAY P. The reduction of oral Lactobacillus acidophilus counts by the periodic restriction of carbohydrate. AMERICAN JOURNAL OF ORTHODONTICS 1947; 33:162-184. [PMID: 20286451 DOI: 10.1016/0096-6347(47)90180-4] [Citation(s) in RCA: 42] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
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The Biological Production and Therapeutic Use of Ammonia in the Oral Cavity in Relation to Dental Caries Prevention. J Am Dent Assoc 1946; 33:695-714. [DOI: 10.14219/jada.archive.1946.0274] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Public Health Weekly Reports for JUNE 4, 1943. PUBLIC HEALTH REPORTS (WASHINGTON, D.C. : 1896) 1943; 58:857-891. [PMID: 19315924 PMCID: PMC2016960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
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Correlation and Comparison of Laboratory Findings with the Clinical Evidence of Caries Activity in a Group of Sixty-Six Children. J Am Dent Assoc 1942. [DOI: 10.14219/jada.archive.1942.0317] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Public Health Weekly Reports for JULY 25, 1941. PUBLIC HEALTH REPORTS (WASHINGTON, D.C. : 1896) 1941; 56:1495-1534. [PMID: 19315827 PMCID: PMC2108611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
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Pulp Management: A Summary**Summary of the papers by Drs. Harris, Wagner, Kohn, Callaway, Dwyer and Waas, presented in a symposium. J Am Dent Assoc 1940. [DOI: 10.14219/jada.archive.1940.0223] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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