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Conference Paper: Effect of Er,Cr:YSGG laser on biofilm adhered on zirconia surfaces

TitleEffect of Er,Cr:YSGG laser on biofilm adhered on zirconia surfaces
Authors
KeywordsAdhesion
Biofilm
Ceramics
Disinfection/sterilization and Lasers
Issue Date2013
PublisherSage Publications, Inc. The Journal's web site is located at http://www.sagepub.com/journalsProdDesc.nav?prodId=Journal201925
Citation
The 91st General Session & Exhibition of the International Association for Dental Research (IADR), Seattle, Washington, USA, 20-23 March 2013. In Journal of Dental Research, 2013, v. 92 n. Special Issue A: abstract no. 1266 How to Cite?
AbstractObjectives: To determine the adhesion of bacteria on zirconia with different surface treatments and to determine the effect of Er,Cr:YSGG laser on bacteria adhered on zirconia with different surface treatments. Methods: Zirconia blocks were cut into discs which were subsequently polished, sonicated and sintered. The sintered discs were randomly divided into three groups (M: machined surfaces, A: acid-etched surfaces and S: sandblasted surfaces) and colonized by Streptococcus sanguinis and Fusobacterium nucleatum reference strains for 7 days. Discs were then irradiated with Er,Cr:YSGG laser. CFU of the bacterial cells were quantified before and after laser therapy. SEM analysis was performed. Data were analyzed with one-way ANOVA or Kruskal-Wallis test while Bonferroni or Mann-Whitney multiple comparison were performed for post hoc analysis. Differences were considered significant if P<0.05. Results: Significant differences in CFU of both bacteria were found among 3 groups (p<0.001) after culture with CFU of Group S significantly higher than Group M and A. No significant difference was found among the groups for CFU reduction fraction in both bacteria after laser treatment (p>0.05). Conclusions: Increasing the surface roughness of zirconia discs by sandblasting and acid-etching has significant effects on adhesion of F. nucleatum and S. sanguinis. YSGG laser is effective in removing both bacteria irrespective the type of surface treated zirconia.
DescriptionPoster Presentation
Session 164: Peri-implant Diseases: Treatment
Persistent Identifierhttp://hdl.handle.net/10722/184872
ISSN
2015 Impact Factor: 4.602
2015 SCImago Journal Rankings: 1.714

 

DC FieldValueLanguage
dc.contributor.authorPow, EHNen_US
dc.contributor.authorTse, ECMen_US
dc.contributor.authorTsang, PCSen_US
dc.date.accessioned2013-07-15T10:15:45Z-
dc.date.available2013-07-15T10:15:45Z-
dc.date.issued2013en_US
dc.identifier.citationThe 91st General Session & Exhibition of the International Association for Dental Research (IADR), Seattle, Washington, USA, 20-23 March 2013. In Journal of Dental Research, 2013, v. 92 n. Special Issue A: abstract no. 1266en_US
dc.identifier.issn0022-0345-
dc.identifier.urihttp://hdl.handle.net/10722/184872-
dc.descriptionPoster Presentation-
dc.descriptionSession 164: Peri-implant Diseases: Treatment-
dc.description.abstractObjectives: To determine the adhesion of bacteria on zirconia with different surface treatments and to determine the effect of Er,Cr:YSGG laser on bacteria adhered on zirconia with different surface treatments. Methods: Zirconia blocks were cut into discs which were subsequently polished, sonicated and sintered. The sintered discs were randomly divided into three groups (M: machined surfaces, A: acid-etched surfaces and S: sandblasted surfaces) and colonized by Streptococcus sanguinis and Fusobacterium nucleatum reference strains for 7 days. Discs were then irradiated with Er,Cr:YSGG laser. CFU of the bacterial cells were quantified before and after laser therapy. SEM analysis was performed. Data were analyzed with one-way ANOVA or Kruskal-Wallis test while Bonferroni or Mann-Whitney multiple comparison were performed for post hoc analysis. Differences were considered significant if P<0.05. Results: Significant differences in CFU of both bacteria were found among 3 groups (p<0.001) after culture with CFU of Group S significantly higher than Group M and A. No significant difference was found among the groups for CFU reduction fraction in both bacteria after laser treatment (p>0.05). Conclusions: Increasing the surface roughness of zirconia discs by sandblasting and acid-etching has significant effects on adhesion of F. nucleatum and S. sanguinis. YSGG laser is effective in removing both bacteria irrespective the type of surface treated zirconia.-
dc.languageengen_US
dc.publisherSage Publications, Inc. The Journal's web site is located at http://www.sagepub.com/journalsProdDesc.nav?prodId=Journal201925-
dc.relation.ispartofJournal of Dental Researchen_US
dc.rightsJournal of Dental Research. Copyright © Sage Publications, Inc.-
dc.subjectAdhesion-
dc.subjectBiofilm-
dc.subjectCeramics-
dc.subjectDisinfection/sterilization and Lasers-
dc.titleEffect of Er,Cr:YSGG laser on biofilm adhered on zirconia surfacesen_US
dc.typeConference_Paperen_US
dc.identifier.emailPow, EHN: ehnpow@hku.hken_US
dc.identifier.emailTsang, PCS: csptsang@hkucc.hku.hken_US
dc.identifier.authorityPow, EHN=rp00030en_US
dc.identifier.authorityTsang, PCS=rp00026en_US
dc.identifier.hkuros215132en_US
dc.identifier.volume92en_US
dc.identifier.issueSpecial Issue A: abstract no. 1266en_US
dc.publisher.placeUnited States-

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