Influence of application mode of universal adhesive on the surface morphology, elemental composition and bond strength of calcium silicate-based cements to composite resin: a SEM-EDX microanalysis study
Yükleniyor...
Dosyalar
Tarih
2022
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Taylor & Francis Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Maintaining pulp vitality is one of the most important issues in dentistry and the quality of the bond strength of calcium silicate-based cements (CSCs) used for this purpose to restorative material directly affects the long-term success of the treatment. This in vitro study aimed to evaluate microshear bond strength (mu SBS) of several CSCs to composite resin using a universal adhesive in both etch-and-rinse and self-etch modes and to examine surface characteristics after acid etching. Five CSCs, namely Angelus MTA, Biodentine, NeoMTA, TheraCal LC, and Well Root ST were evaluated. Fifteen specimens per group were used for determining the mu SBS to composite resin. The composite resin was applied over CSCs using a universal adhesive either in etch-and-rinse or self-etch modes, and mu SBS of CSCs to composite resin was assessed. The effect of acid etching on the surface morphology and Ca/Si ratio of CSCs were examined by SEM-EDX microanalysis. The highest mu SBS was obtained for TheraCal LC in both etch-and-rinse and self-etch modes. No significant difference was found between Biodentine and MTA-based cements in the etch-and-rinse mode, whereas in the self-etch mode, Biodentine displayed a significantly superior bond strength. The results of SEM demonstrated distinct morphological alterations after acid etching. Acid etching decreased the Ca/Si ratio of the substrate surface by approximately 4-fold for all CSCs. TheraCal LC is more suitable for vital pulp therapy with its superior bond strength to composite resin. Furthermore, it may be suggested that adequate adhesive performance may also be achieved without an acid etching.
Açıklama
Anahtar Kelimeler
Bond strength, composite resins, mineral trioxide aggregate, SEM-EDX, universal adhesives
Kaynak
Journal of Adhesion Science and Technology
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
36
Sayı
17
