Effect of primer on the polymerization of dual cure resin cements

Lee, Eun-Hye; Enkhbileg, Nyamsuren; Kim, Jin-Woo; Cho, Kyung-Mo; Park, Se-Hee

J Korean Dent Assoc > Volume 58(12); 2020 > Article

ORIGINAL ARTICLE

The Journal of The Korean Dental Association 2020;58(12):726-736.
Published online November 30, 2020.

Primer가 이중중합 레진시멘트의 중합에 미치는 영향

이은혜

, Enkhbileg Nyamsuren

, 김진우

, 조경모

, 박세희

강릉원주대학교 치과대학 치과보존학교실

Effect of primer on the polymerization of dual cure resin cements

Eun-Hye Lee

, Nyamsuren Enkhbileg

, Jin-Woo Kim

, Kyung-Mo Cho

, Se-Hee Park

Department of Conservative Dentistry, College of Dentistry, Gangneung-Wonju National University

Correspondence: Se-Hee Park, Tel: +82-33-640-2760, Fax: +82-33-640-3103,
Email: drendo@gwnu.ac.kr

Received: 1 June 2020 • Revised: 24 July 2020 • Accepted: 14 August 2020

Abstract

Objectives
The primer (G-Cem One Adhesive Enhancing Primer), which promote self-polymerization more in the absence of polymerization light is developed. To date, many studies on the mechanical properties and prognosis of various self-adhesive resin cements have been published. Since there is almost no comparison of the degree of polymerization depending on the application of primers, this study was attempted.
Materials and Methods
A total of three types of dual cure self-adhesive resin cements (G-Cem One, G-Cem LinkAce, Rely-X U200) and one type of dual cure resin cement (Rely-X Ultimate) were evaluated. G-Cem One Primer was used as a primer enhancing of auto-polymerization. A mold 5 mm in diameter and 2 mm thick was made from aluminum, primers were applied on a glass slit, and each material was filled in the mold, and self-polymerization was induced. The microhardness was measured with a Vickers microhardness machine after 10 minutes, 1 hour,3 hours,6 hours and 24 hours. All dates were statistically analyzed.
Results
G-Cem One, G-Cem LinkAce and Rely-X U200 showed high microhardness values when primers were applied at the beginning of cement mixing. Primer application did not show significantly different in Rely-X Ultimate.
Conclusion
The application of a new primer has a dual cure self-adhesive resin cement which promotes the polymerization at the beginning of the mixing.

Key Words: dual cure resin cement; hardness test; polymerization; primer; self-cure