European Journal of Prosthodontics and Restorative Dentistry

Analysis of Biofilm Adhesion on CAD/CAM Lithium Disilicates Under Different Types of Intraoral Polishing


Purpose: To evaluate the adhesion of Streptococcus mutans (S. mutans) on lithium disilicate ceramics, submitted to different intraoral polishing protocols, and the degree of surface smoothness obtained. Materials and Methods: Fifty lithium disilicate specimens were divided into 5 groups (n=10): G1-Glaze Group (positive control); G2-Glaze Group + Wear + Glaze; G3-Wear Group (negative control); G4-Ceramisté Wear Group; G5-Optrafine Wear Group. Surface roughness (Ra - µm) was evaluated and the surface characteristics were assessed using a scanning electron microscope (SEM); to assess S.mutans biofilm, the number of cultured cells was evaluated by counting colony-forming units (CFU/mL). The data underwent one-way ANOVA followed by Tukey’s test (P<.05).
Results: There was a significant difference in the surface roughness of all groups compared with G3. There was no significant difference between the G4 and G5 groups that received polishing. G1 group had the lowest mean roughness values. There was a difference in Log values (CFU/mL) between the G3 group and the groups that received glaze (G1 and G2). The G3 group had the highest adhesion of S. mutans (4.53 Log). Conclusion: The most effective polishing protocol after wear is glazing, presenting the lowest roughness and CFU/mL values.

Dental Polishing
Roughness Surface


Aimée M. Guiotti, Aldiéris A. Pesqueira, Paulo H. dos Santos, Cristiane Duque, João Pedro J. D. O. Limírio, Renan C. Araújo, Heloisa S. de Souza, Isabela A. Catanoze

Articles from this issue

Title / DOI Access Page Start Page End Purchase
Does Immediate Dentine Sealing Improve Bonding Effectiveness of Glass Ceramic Restorations Compared to Delayed Dentine Sealing?
no access 65 75 £10.00
Accuracy of Removable Partial Denture Frameworks Fabricated Using Conventional and Digital Technologies
no access 76 86 £10.00
Analysis of Biofilm Adhesion on CAD/CAM Lithium Disilicates Under Different Types of Intraoral Polishing
no access 87 95 £10.00
Prosthetic Management of Severe Mandibular Deviation in a Hemi-Mandibulectomy Patient Following Osteoradionecrosis
no access 96 106 £10.00
Trueness, 3D Deviation, Time and Cost Comparisons Between Milled and 3D-Printed Resin Single Crowns
no access 107 112 £10.00
Biomechanics of Different Types of PEEK as Implant Materials for Implant-Retained Mandibular Overdentures
no access 113 120 £10.00
A Service Evaluation of Dental Assessments Prior to Treatment for Head and Neck Cancer in NHS Grampian
no access 121 125 £10.00
Effect of Tannic Acid and Quercetin Antioxidants on Bond Strength of Resin Cement to Dentin after Internal Bleaching
no access 126 133 £10.00
BSSPD 2022 Conference Report free access 134 136 view
BSSPD Abstracts from the 2022 Conference free access 137 167 view
BSSPD Annual Conference 2023 free access 168 168 view
  • free access Free Access
  • no access No Access
  • full access Full Access