Effect of Composite or Ceramic Thickness on the Polymerization Hardness of 5 Different Dual-cured Resin Luting Cements

Gül ATEŞ; Nur HERSEK

doi:https://doi.org/10.7126/cumudj.970768

Makale detayları

Effect of Composite or Ceramic Thickness on the Polymerization Hardness of 5 Different Dual-cured Resin Luting Cements

Yazarlar:

Gül ATEŞ | Nur HERSEK

Ana Başlıklar:

Sağlık teşvikleri

Dergi:

Cumhuriyet Dental Journal 2022 Vol.25 Issue 1, pp.36-42

Belge Tipi:

Makale

Yayın Tarihi:

3/2022

Belge Dili:

İngilizce

Document ID (Org No.):

2000711140

DOI:

https://doi.org/10.7126/cumudj.970768

Özet:

 

Objective: The aim of the present study was to evaluate the influence of ceramic and composite thickness on polymerization hardness of five different dual-cure resin cements.
Materials and Methods: A total of 100 disc-shaped spacer, 10-mm in diameter and five varying thicknesses (1.0mm, 2.0mm, 3.0mm, 4.0mm, 5.0mm) were fabricated from ceramic and composite materials. Dual-cure resin cement specimens with 8-mm diameter were prepared using metal brass mold and activated by light beneath the composite and ceramic disc shaped spacers. A total of 100 specimens of five different dual-cure resins (RelyX, Variolink, NX3, Calibra, Panavia F2.0) were prepared. Knoop hardness of each dual-cure resin cement was measured at five different point using a microhardness device with a 500 gm load, after 1 hr, 1 day, and 1 week polymerization. All data were statistically evaluated using one-way ANOVA.
Results: Multivariate analysis of variance revealed significant differences in hardness of specimens dual-cured under composite resin or ceramic spacers and different time intervals (P<.001). Specimens cured through composite resin spacers showed less hardness values than ceramic spacers, with increasing thickness of the spacer.  Also increasing the thickness of the composite or ceramic spacers produced a statistically significant decrease in microhardness of the dual-cure cements (P<.05).
Conclusions: Hardness values significantly reduced when composite spacers were thicker than 2 mm and ceramic spacers thicker than 3 mm. Dual-cured resin cements are needed to be improved to achieve sufficient degree of hardening under composite and ceramic restorations. Different commercially available brands have different polymerization properties.

Makale detayları

Effect of Composite or Ceramic Thickness on the Polymerization Hardness of 5 Different Dual-cured Resin Luting Cements

Yazarlar: Gül ATEŞ | Nur HERSEK

Ana Başlıklar: Sağlık teşvikleri

Dergi: Cumhuriyet Dental Journal 2022 Vol.25 Issue 1, pp.36-42

Belge Tipi: Makale

Yayın Tarihi: 3/2022

Belge Dili: İngilizce

Document ID (Org No.): 2000711140

DOI: https://doi.org/10.7126/cumudj.970768

Sayı

Yazarlar:

Gül ATEŞ | Nur HERSEK

Ana Başlıklar:

Sağlık teşvikleri

Dergi:

Cumhuriyet Dental Journal 2022 Vol.25 Issue 1, pp.36-42

Belge Tipi:

Makale

Yayın Tarihi:

3/2022

Belge Dili:

İngilizce

Document ID (Org No.):

2000711140

DOI:

https://doi.org/10.7126/cumudj.970768