Journal of Conservative Dentistry
Home About us Editorial Board Instructions Submission Subscribe Advertise Contact e-Alerts Login 
Users Online: 174
Print this page  Email this page Bookmark this page Small font sizeDefault font sizeIncrease font size
ORIGINAL ARTICLE
Year : 2013  |  Volume : 16  |  Issue : 6  |  Page : 559-563

Surface geometry of various nanofiller composites using different polishing systems: A comparative study


Department of Conservative Dentistry and Endodontics, I.T.S. Centre for Dental Studies and Research, Delhi-Merrut Road, Ghaziabad, Uttar Pradesh, India

Correspondence Address:
Sonali Taneja
Department of Conservative Dentistry and Endodontics, I.T.S Centre for Dental Studies and Research, Delhi-Merrut Road, Ghaziabad, UP - 201 206
India
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0972-0707.120949

Rights and Permissions

Aim: This in vitro study assessed the surface quality of three nanoparticle composites with four commercially available polishing systems. Materials and Methods: A total of 180 specimens (10 × 2 mm) were prepared in metal molds using three nanocomposites, Filtek Z-350 XT, Ceram-X Mono, and Tetric N-Ceram. Sixty specimens of each material were then randomly assigned to five study groups. Control specimens were left untreated and the remaining specimens were subjected to polishing with SpinBrite, CompoMaster, AstroPol, and SofLex polishing systems. Average roughness (Ra) and average ten-point roughness (Rz) were calculated using Perthometer, and the data were analyzed by two-way analysis of variance (ANOVA) and post-hoc Tukey's tests. Results: For all the materials, the roughest surfaces were observed for control specimens, with no statistically significant differences between the material groups. For Filtek Z-350 XT, the decrease in surface roughness after two-step polishing was insignificant. For Ceram-X, SpinBrite specimens showed similar degree of roughness as control specimens. For Tetric N-Ceram, no significant decrease in roughness was observed after one-step polishing. Two-way ANOVA (interaction of subgroups and groups) did not show a significant association with the outcome. Conclusions: For nanofilled composites (Filtek Z-350 XT), the surface roughness decreased with the increase in number of polishing steps, whereas one-step and multi-step polishing procedures produced similar quality of smoothness for nanohybrid composites (Ceram-X, Tetric N-Ceram). Ra and Rz values of surface roughness are a function of type of finishing/polishing only.


[FULL TEXT] [PDF]*
Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)
 

 Article Access Statistics
    Viewed1629    
    Printed34    
    Emailed0    
    PDF Downloaded215    
    Comments [Add]    

Recommend this journal