TY - JOUR
T1 - The effect of different adhesive strategies and diamond burs on dentin bond strength of universal resin cements
AU - Atsavathavornset, Chavakorn
AU - Saikaew, Pipop
AU - Harnirattisai, Choltacha
AU - Sano, Hidehiko
N1 - Publisher Copyright:
© The Author(s) 2024.
PY - 2025/1
Y1 - 2025/1
N2 - Objectives: To evaluate the shear bond strength (SBS) of universal cements (UCs) to dentin prepared with different diamond burs using various adhesive strategies. Materials and methods: One-hundred-twenty molars were prepared to expose the mid-coronal dentin. The teeth were divided into two groups according to diamond bur preparations: coarse and super-fine grit burs. The specimens were bonded to lithium disilicate discs using two UCs (RelyX Universal, RXU and Panavia SA Luting Multi, PSA) with different adhesive strategies (self-adhesive, SA; self-etch, SE and etch-and-rinse, ER). SBS was measured using a universal testing machine. The cement-dentin interfaces were observed using scanning electron microscopy. Results: Dentin SBS was significantly influenced by the adhesive strategies and the type of UCs (p < 0.05) but not for the different diamond bur preparations (p > 0.05). UCs used with ER had significantly higher SBS values than UCs used in SA mode (P < 0.05), except for PSA with super-fine diamond bur. RXU in SE mode exhibited significantly higher SBS than SA mode (P < 0.05). Regarding UCs, RXU showed a higher SBS than PSA, particularly in the SE modes when the dentin was prepared with a coarse diamond bur (P < 0.05). Conclusion: The use of UCs combined with universal adhesives exhibited higher dentin bonding performance compared with the use of UCs alone. Clinical significance: The etch-and-rinse mode combined with a universal adhesive is recommended to achieve the highest dentin bond strength of universal cements.
AB - Objectives: To evaluate the shear bond strength (SBS) of universal cements (UCs) to dentin prepared with different diamond burs using various adhesive strategies. Materials and methods: One-hundred-twenty molars were prepared to expose the mid-coronal dentin. The teeth were divided into two groups according to diamond bur preparations: coarse and super-fine grit burs. The specimens were bonded to lithium disilicate discs using two UCs (RelyX Universal, RXU and Panavia SA Luting Multi, PSA) with different adhesive strategies (self-adhesive, SA; self-etch, SE and etch-and-rinse, ER). SBS was measured using a universal testing machine. The cement-dentin interfaces were observed using scanning electron microscopy. Results: Dentin SBS was significantly influenced by the adhesive strategies and the type of UCs (p < 0.05) but not for the different diamond bur preparations (p > 0.05). UCs used with ER had significantly higher SBS values than UCs used in SA mode (P < 0.05), except for PSA with super-fine diamond bur. RXU in SE mode exhibited significantly higher SBS than SA mode (P < 0.05). Regarding UCs, RXU showed a higher SBS than PSA, particularly in the SE modes when the dentin was prepared with a coarse diamond bur (P < 0.05). Conclusion: The use of UCs combined with universal adhesives exhibited higher dentin bonding performance compared with the use of UCs alone. Clinical significance: The etch-and-rinse mode combined with a universal adhesive is recommended to achieve the highest dentin bond strength of universal cements.
KW - Adhesive strategies
KW - Self-adhesive resin cement
KW - Smear layer
KW - Universal adhesive
KW - Universal resin cement
UR - http://www.scopus.com/inward/record.url?scp=85213992479&partnerID=8YFLogxK
U2 - 10.1007/s00784-024-06112-4
DO - 10.1007/s00784-024-06112-4
M3 - Article
AN - SCOPUS:85213992479
SN - 1432-6981
VL - 29
JO - Clinical Oral Investigations
JF - Clinical Oral Investigations
IS - 1
M1 - 41
ER -