TY - JOUR
T1 - Effect of Various Airborne Particle Abrasion Conditions on Bonding between Polyether-Ether-Ketone (PEEK) and Dental Resin Cement
AU - Lee, Pao-Chieh
AU - Peng, Tzu-Yu
AU - Ma, Tien-Li
AU - Chiang, Kuan-Yu
AU - Mine, Yuichi
AU - Lee, I-Ta
AU - Yu, Chang-Chiang
AU - Chen, Su-Feng
AU - Yu, Jian-Hong
N1 - Funding Information:
This work was supported by China Medical University and Hospital, Taichung City, Taiwan (Grant number: 10742666) and the National Science and Technology Council, Taiwan (Grant number: 111-2314-B-038-021).
Publisher Copyright:
© 2023 by the authors.
PY - 2023/4/28
Y1 - 2023/4/28
N2 - The effects of alumina particle size and jet pressure on the bond strength of polyetheretherketone (PEEK) were examined to determine the airborne particle abrasion parameters with minimal effects on PEEK and to achieve optimal bond strength, as a reference for future clinical use. An alumina particle with four particle sizes and three jet pressures was used to air-abrade PEEK. Surface roughness (Ra), morphology, chemical structure, and wettability were analyzed using a stylus profilometer, scanning electron microscope, X-ray diffractometer, and contact angle analyzer, respectively. The shear bond strength (SBS) of PEEK and dental resin cement was analyzed using a universal testing machine (n = 10). The failure modes and debonded fracture surfaces were observed using optical microscopy. Airborne particle abrasion increased the Ra and hydrophobicity of PEEK and deposited alumina residues. The SBS generally decreased after thermal cycling. A large particle size damaged the PEEK surface. The effects of different particle sizes and jet pressures on the SBS were only significant in certain groups. Adhesive failure was the main mode for all groups. Within the limitations of this study, 110 μm grain-sized alumina particles combined with a jet pressure of 2 bar prevented damage to PEEK, providing sufficient SBS and bonding durability between PEEK and dental resin cement.
AB - The effects of alumina particle size and jet pressure on the bond strength of polyetheretherketone (PEEK) were examined to determine the airborne particle abrasion parameters with minimal effects on PEEK and to achieve optimal bond strength, as a reference for future clinical use. An alumina particle with four particle sizes and three jet pressures was used to air-abrade PEEK. Surface roughness (Ra), morphology, chemical structure, and wettability were analyzed using a stylus profilometer, scanning electron microscope, X-ray diffractometer, and contact angle analyzer, respectively. The shear bond strength (SBS) of PEEK and dental resin cement was analyzed using a universal testing machine (n = 10). The failure modes and debonded fracture surfaces were observed using optical microscopy. Airborne particle abrasion increased the Ra and hydrophobicity of PEEK and deposited alumina residues. The SBS generally decreased after thermal cycling. A large particle size damaged the PEEK surface. The effects of different particle sizes and jet pressures on the SBS were only significant in certain groups. Adhesive failure was the main mode for all groups. Within the limitations of this study, 110 μm grain-sized alumina particles combined with a jet pressure of 2 bar prevented damage to PEEK, providing sufficient SBS and bonding durability between PEEK and dental resin cement.
KW - abrasion parameters
KW - airborne particle abrasion
KW - polyetheretherketone
KW - resin cement
KW - shear bond strength
KW - thermocycle aging test
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U2 - 10.3390/polym15092114
DO - 10.3390/polym15092114
M3 - Article
C2 - 37177258
SN - 2073-4360
VL - 15
JO - Polymers
JF - Polymers
IS - 9
M1 - 2114
ER -