Adhesion of Resin Cements to Plasma-Treated Resin Blocks for CAD/CAM
Objectives: This study investigated the effect of atmospheric pressure plasma application on shear bond strength (SBS) of two resin cements to resin blocks for CAD/CAM. Methods: Two resin blocks for CAD/CAM were tested: Enamic (Vita Zahnfabrik) and Lava Ultimate (3M ESPE). Resin blocks were submitted to the following treatments: manufacturers’ instructions (MAI); argon plasma (30s) (ARP) and argon plasma + adhesive (APA). After treatments, silicon molds were positioned over treated resin block surfaces and resin cements (Panavia V5, Kuraray Noritake and RelyX Ultimate, 3M ESPE) were placed into hole of molds to form a resin cylinder (1.5mm diameter and 1.0mm height) after light activation (n=5). Resin blocks were stored in distilled water for 24 h and tested in universal testing machine (1.0mm/min). SBS data were analyzed by three-way ANOVA and Tukey test (α=0.05). Results: The surface treatment of Lava Ultimate did not affect the SBS of both resin cements, while for Enamic treatment suggested by manufacturer yielded the highest SBS for Panavia V5. Conclusions: The ARP or APA showed no significant difference compared to MAI, except for Panavia V5 bonded to Enamic.
Division: IADR/AADR/CADR General Session
Meeting:2017 IADR/AADR/CADR General Session (San Francisco, California) Location: San Francisco, California
Year: 2017 Final Presentation ID:2618 Abstract Category|Abstract Category(s):Dental Materials 2:Polymer-based Materials
Authors
Castro, Eduardo
( Piracicaba Dental School - State University of Campinas
, Piracicaba
, SP
, Brazil
)
Azevedo, Veber
( Piracicaba Dental School - State University of Campinas
, Piracicaba
, SP
, Brazil
)
Nima, Gabriel
( Piracicaba Dental School - State University of Campinas
, Piracicaba
, SP
, Brazil
)
Ambrosano, Gláucia
( Piracicaba Dental School - State University of Campinas
, Piracicaba
, SP
, Brazil
)
Giannini, Marcelo
( Piracicaba Dental School - State University of Campinas
, Piracicaba
, SP
, Brazil
)
SBS means (SD) of resin cements to resin blocks for CAD/CAM (in MPa).
Resin Blocks
Treatments
Panavia V5
RelyX Ultimate
Lava Ultimate
MAI
*5.6 (1.8) Ba
16.9 (6.2) Aa
ARP
5.2 (1.6) Aa
9.8 (2.7) Aa
APA
4.6 (1.8) Ba
10.1 (2.7) Aa
Enamic
MAI
10.6 (2.0) Aa
12.2 (3.7) Aa
ARP
5.0 (0.6) Bb
14.1 (1.0) Aa
APA
6.0 (1.5) Aab
9.0 (2.0) Aa
Uppercase letters compare “resin cements” for the same “treatment” and lowercase letters compare “treatments” for the same “resin cement” (p≤0.05). *Differs from Enamic for the same treatment and resin cement condition (p≤0.05).