Effect of Different Surface Treatments on the Repair of Aged Bulk-Fill Composites: An In Vitro Study

Soner ŞİŞMANOĞLU

doi:https://doi.org/10.7126/cumudj.646705

Article Details

Effect of Different Surface Treatments on the Repair of Aged Bulk-Fill Composites: An In Vitro Study

Authors:

Soner ŞİŞMANOĞLU

Main Topics:

Promotion of health

Journal:

Cumhuriyet Dental Journal 2019 Vol.22 Issue 4, pp.451-460

Document Type:

Article

Publication Date:

12/2019

Document Language:

English

Document ID (Org No.):

2000734465

DOI:

https://doi.org/10.7126/cumudj.646705

Abstract:

 


Objectives: The aim of this in vitro study was to evaluate the efficiency of different surface treatments
on the microtensile bond strength (µTBS) of aged bulk-fill composite.


Materials and Methods: Sixty bulk-fill resin-based
composite (RBC) specimens in 5 x 5 x 5 dimensions were prepared. After the
aging by thermal cycling for 5000 times between 5 and
55°C, substrate surfaces were abraded with SiC abrasive papers. Specimens
were divided into 6 groups according to the surface treatment protocol: no
surface treatment (control), control + Single Bond Universal (SBU; 3M ESPE)
application, phosphoric acid etching (PA) + SBU, hydrofluoric acid  etching (HF) + SBU, aluminum oxide air
abrasion (AlO) + SBU, and tribochemical silica coating (TSC) + SBU. Surface roughness values were measured in five different
directions using a contact profilometer (n=10). Then, specimens were repaired
with a conventional RBC. After the repair, bonded specimens were cut into 1 mm2
beams and µTBS values were determined until failure at a crosshead speed of 0.5
mm/min. Specimen surfaces after surface treatments were observed by SEM.
Data were analyzed using  ANOVA and Tukey
tests (p AlO > HF > PA = Control.









Conclusions: Aged bulk-fill RBCs can be successfully
repaired if effective and safe repair protocol is chosen. The highest µTBS
values were obtained for the AlO and TSC. The use of universal adhesive alone is
promising to facilitate the repair of bulk-fill RBCs.



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Article Details

Effect of Different Surface Treatments on the Repair of Aged Bulk-Fill Composites: An In Vitro Study

Authors: Soner ŞİŞMANOĞLU

Main Topics: Promotion of health

Journal: Cumhuriyet Dental Journal 2019 Vol.22 Issue 4, pp.451-460

Document Type: Article

Publication Date: 12/2019

Document Language: English

Document ID (Org No.): 2000734465

DOI: https://doi.org/10.7126/cumudj.646705

Issues

Authors:

Soner ŞİŞMANOĞLU

Main Topics:

Promotion of health

Journal:

Cumhuriyet Dental Journal 2019 Vol.22 Issue 4, pp.451-460

Document Type:

Article

Publication Date:

12/2019

Document Language:

English

Document ID (Org No.):

2000734465

DOI:

https://doi.org/10.7126/cumudj.646705