Restor Dent Endod.  2021 Feb;46(1):e3. 10.5395/rde.2021.46.e3.

Interface between calcium silicate cement and adhesive systems according to adhesive families and cement maturation

• Pradelle-Plasse N
• Mocquot C
• Semennikova K
• Colon P
• Grosgogeat B

• KMID: 2548053
• DOI: http://doi.org/10.5395/rde.2021.46.e3

Abstract

Objectives
This study aimed to evaluate the interface between a calcium silicate cement (CSC), Biodentine and dental adhesives in terms of sealing ability.
Materials and Methods
Microleakage test: 160 standardized class II cavities were prepared on 80 extracted human molars. The cavities were filled with Biodentine and then divided into 2 experimental groups according to the time of restoration: composite resin obturation 15 minutes after Biodentine handling (D0); restoration after 7 days (D7). Each group was then divided into 8 subgroups (n = 5) according to the adhesive system used: etch-and-rinse adhesive (Prime & Bond); self-etch adhesive 2 steps (Optibond XTR and Clearfil SE Bond); self-etch adhesive 1 step (Xeno III, G-aenial Bond, and Clearfil Tri-S Bond); and universal used as etch-and-rinse or self-etch (ScotchBond Universal ER or SE). After thermocycling, the teeth were immersed in a silver nitrate solution, stained, longitudinally sectioned, and the Biodentine/adhesive percolation was quantified. Scanning electron microscopic observations: Biodentine/adhesive interfaces were observed.
Results
A tendency towards less microleakage was observed when Biodentine was etched (2.47%) and when restorations were done without delay (D0: 4.31%, D7: 6.78%), but this was not significant. The adhesives containing 10-methacryloyloxydecyl dihydrogen phosphate monomer showed the most stable results at both times studied. All Biodentine/adhesive interfaces were homogeneous and regular.
Conclusions
The good sealing of the CSC/adhesive interface is not a function of the system adhesive family used or the cement maturation before restoration. Biodentine can be used as a dentine substitute.

Keyword

Adhesives; Calcium silicate; Substitutes; Leakage; 10-MDP

Figure

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  Figure 1 Cavity preparation and measurements of the dye penetration length.

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  Figure 2 Tooth section: on the left, the arrow shows silver nitrate penetration along the interface; on the right no penetration.

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  Figure 3 Scanning electron microscopic (SEM) observation of Biodentine/2 steps self-etch system (Clearfil SE Bond) interface (×1,000).

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  Figure 4 Scanning electron microscopic (SEM) observation of Biodentine/one step self-etch system (Clearfil Tri-S Bond) interface (×1,000).

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  Figure 5 Scanning electron microscopic (SEM) observation of Biodentine/universal system used as one step self-etch system (Scotchbond Universal) interface (×1,000).

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  Figure 6 Scanning electron microscopic (SEM) observation of Biodentine/universal system used as etch-and-rinse system (Scotchbond Universal) interface (×1,000).

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  Figure 7 Scanning electron microscopic (SEM) observation of Biodentine/etch-and-rinse system (Prime & Bond) interface (×1,000).

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