+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Adhesion of Streptococcus mutans and Streptococcus sanguinis on Er:YAG Laser-Irradiated Dental Enamel: Effect of Surface Roughness



Adhesion of Streptococcus mutans and Streptococcus sanguinis on Er:YAG Laser-Irradiated Dental Enamel: Effect of Surface Roughness



Photomedicine and Laser Surgery 36(12): 660-666



Objective: To determine surface roughness caused by Er:YAG laser irradiation and its effect on the increase in bacterial adhesion. Background: Er:YAG laser was proposed as a strategic device to reduce caries by its ability to generate chemical and structural changes in tooth enamel; in turn, it produces undesirable effects on the tooth surface that could increase its roughness and allow a greater accumulation of microorganisms. Methods: Eighty-four samples of human enamel were divided into seven groups (n = 12): G1_control (no laser irradiation); G2_100/H2O, G3_200/H2O, and G4_300/H2O were irradiated with Er:YAG laser (12.7, 25.5, and 38.2 J/cm2, respectively) under water irrigation. In addition, G5_100, G6_200, and G7_300 were irradiated with the energy densities described above and no water irrigation. Surface roughness measurements were recorded before and after treatment using a profilometer. Afterward, three samples per group were incubated in a microorganism suspension for the tetrazolium salt (XTT) assay. Biofilm morphology was observed using scanning electron microscopy and confocal laser scanning microscope. One-way analysis of variance and t-tests were performed for statistical analysis (p < 0.05). Results: There were no statistically significant differences in roughness values in the G5_100 group before and after treatment, but there were statistically significant differences observed in the other groups evaluated (p < 0.05). No significant differences in adhesion of both strains were detected in irradiated groups compared with G1_control. Conclusions: The increase in roughness on dental enamel surfaces was proportional to the irradiation conditions. However, the increase in surface roughness caused by Er:YAG laser irradiation did not affect Streptococcus mutans and S. sanguinis adhesion.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 065679954

Download citation: RISBibTeXText

PMID: 30260744

DOI: 10.1089/pho.2018.4471


Related references

Influence of oral bacteria on adhesion of Streptococcus mutans and Streptococcus sanguinis to dental materials. Clinical and Experimental Dental Research 4(3): 72-77, 2018

Changes in enamel surface roughness and adhesion of Streptococcus mutans to enamel after vital bleaching. Journal of Dentistry 31(8): 543-548, 2003

The effect of fluoride on adhesion of Streptococcus mutans and Streptococcus sanguis on the dental pure titanium surface. Shanghai Kou Qiang Yi Xue 24(2): 141-146, 2015

Effect of resin infiltration on enamel surface properties and Streptococcus mutans adhesion to artificial enamel lesions. Dental Materials Journal 34(1): 25-30, 2015

The effect of the surface roughness of porcelain on the adhesion of oral Streptococcus mutans. Journal of Contemporary Dental Practice 10(6): E017-E024, 2009

In silico analysis of the competition between Streptococcus sanguinis and Streptococcus mutans in the dental biofilm. Molecular Oral Microbiology 33(2): 168-180, 2018

Competition and coexistence between Streptococcus mutans and Streptococcus sanguinis in the dental biofilm. Journal of Bacteriology 187(21): 7193-7203, 2005

Penetration of Streptococcus sobrinus and Streptococcus sanguinis into dental enamel. Anaerobe 35(Pt A): 54-59, 2015

The effect of immunization with streptococcus mutans on the development of streptococcus mutans streptococcus sanguis and dental caries in rhesus monkeys. Journal of Dental Research 55(SPEC ISSUE D): D121, 1976

Streptococcal antagonism in oral biofilms: Streptococcus sanguinis and Streptococcus gordonii interference with Streptococcus mutans. Journal of Bacteriology 190(13): 4632-4640, 2008

Effect of nicotine on dual-species biofilms of Streptococcus mutans and Streptococcus sanguinis. Fems Microbiology Letters 350(2): 125-132, 2014

In Vitro Effect of Zingiber officinale Extract on Growth of Streptococcus mutans and Streptococcus sanguinis. International Journal of Dentistry 2015: 489842, 2015

The effect of mango and neem extract on four organisms causing dental caries: Streptococcus mutans, Streptococcus salivavius, Streptococcus mitis, and Streptococcus sanguis: an in vitro study. Indian Journal of Dental Research 18(4): 148-151, 2007

Antibacterial Activity and Cytotoxic Effect of Pelargonium peltatum (Geranium) against Streptococcus mutans and Streptococcus sanguinis. International Journal of Dentistry 2018: 2714350, 2018

The effect of cocoa polyphenols on the growth, metabolism, and biofilm formation by Streptococcus mutans and Streptococcus sanguinis. European Journal of Oral Sciences 114(4): 343-348, 2006