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Surface Topographic Variations and Shear Bond Strength of 3Y-TZP Treated with Al2O3 and Nd: YAG-lasers Operating at Short Pulse
S. Alresayes
Department Of Prosthetic Dental Science, College of Dentistry, King Saud University, Riyadh, Saudi Arabia.
received January 29, 2025, received in revised form March 07, 2025, accepted March 08, 2025
Vol. 16, No. 2, Pages 101-106 DOI: 10.4416/JCST2025-00002
Abstract
Aim Influence of sandblasting (SB), hydrofluoric acid (HFA) and neodymium-yttrium aluminum garnet (Nd: YAG) laser working @nanosecond (ns) level on the surface roughness (Ra) and shear bond strength (SBS) of yttria-stabilized tetragonal zirconia polycrystal (3Y-TZP) bonded to resin cement.
Methods 64 3Y-TZP discs were prepared and allocated into four groups based on the surface pretreatment method used (n = 16) Group 1 (No conditioning), Group 2 (SB), Group 3 (10% HFA gel) and Group 4 (ns-Nd: YAG laser). SEM was used to evaluate the surface topography following different conditioning regimes. Ra analysis was assessed on five discs from each group with a surface profilometer. Resin cement bonding was performed on ten specimens from each cohort and underwent thermocycling. SBS and failure mode were analyzed using a universal testing machine and stereomicroscope respectively. ANOVA and post hoc Tukey test were used for statistical analysis (p < 0.05)
Result The maximum score for Ra (1209.54 ± 0.06 µm) and SBS (12.21 ± 0.15 MPa) was shown in Group 4 (ns-Nd: YAG laser)-conditioned discs. Group 1 (Control)-treated discs displayed minimum scores of Ra (987.23 ± 0.032 µm) and SBS (9.16 ± 0.17 MPa)
Conclusion Nd: YAG laser working at short pulses can be a suitable alternative to SB, enhancing the SBS of 3Y-TZP bonded to resin cement by increasing Ra.
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Keywords
Sandblasting, Nd:YAG laser, surface condition, SEM, failure assessment, 3Y-TZP.
References
1 Miyazaki, T., Hotta, Y., Kunii, J., Kuriyama, S., Tamaki, Y.: A review of dental CAD/CAM: current status and future perspectives from 20 years of experience, Dent. Mater. J., 28, [1], 44 – 56, (2009).
2 Thompson, J.Y., Stoner, B.R., Piascik, J.R., Smith, R.: Adhesion/cementation to zirconia and other non-silicate ceramics: Where are we now? Dent. Mater. 27, [1], 71 – 82, (2011).
3 Blatz, M.B., Sadan, A., Kern, M.: Resin-ceramic bonding: A review of the literature. J. Prosthet. Dent., 89, [3], 268 – 274, (2003).
4 Stawarczyk, B., Basler, T., Ender, A., Roos, M., Özcan, M., Hämmerle, C.: Effect of surface conditioning with airborne-particle abrasion on the tensile strength of polymeric CAD/CAM crowns luted with self-adhesive and conventional resin cements, J. Prosthet. Dent., 107, [2], 94 – 101, (2012).
5 Motevasselian, F., Amiri, Z., Chiniforush, N., Mirzaei, M., Thompson, V.: In vitro evaluation of the effect of different surface treatments of a hybrid ceramic on the microtensile bond strength to a luting resin cement, J. Lasers Med. Sci., 10, [4], 297 – 303, (2019).
6 Sato, H., Yamada, K., Pezzotti, G., Nawa, M., Ban, S.: Mechanical properties of dental zirconia ceramics changed with sandblasting and heat treatment, Dent. Mater. J., 27, [3], 408 – 414, (2008).
7 Karakoca, S., Yilmaz, H.: Influence of surface treatments on surface roughness, phase transformation, and biaxial flexural strength of Y-TZP ceramics, J. Biomed. Mater. Res. – Part B Appl. Biomater., 91, [2], 930 – 937, (2009).
8 Kern, M., Barloi, A., Yang, B.: Surface conditioning influences zirconia ceramic bonding, J. Dent. Res., 88, [9], 817 – 822, (2009).
9 Aladağ, S.Ü., Ayaz, E.A.: Repair bond strength of different CAD-CAM ceramics after various surface treatments combined with laser irradiation, Lasers Med. Sci., 38, [1] (2023).
10 Alkhudhairy, F., AlFawaz, Y.F.: Pretreatment of hybrid ceramics using Ho: YAG, low-level laser therapy activated malachite green, and non-thermal plasma on surface roughness, bond strength, and color change, SEM and EDX analysis, Ceramics, 7, [3], 944 – 957, (2024).
11 Vohra, F., Labban, N., Al-Hussaini, A.: Influence of Er;Cr:YSGG laser on shear bond strength and color stability of lithium disilicate Ceramics: an In Vitro study, Photobiomodulation, Photomedicine, Laser Surg., 37, [8], 483 – 488, (2019).
12 Koester, C.J., Snitzer, E.: Amplification in a fiber laser, Appl. Opt., 3, [10], 1182, (1964).
13 Da Silveira, B.L., Paglia, A., Burnett, L.H., Shinkai, R.S.A., Eduardo, C.D.P., Spohr, A.M.: Micro-tensile bond strength between a resin cement and an aluminous ceramic treated with Nd:YAG laser, rocatec system, or aluminum oxide sandblasting, Photomed. Laser Surg., 23, [6], 543 – 548, (2005).
14 Spohr, A.M., Borges, G.A., Burnett, L.H., Mota, E.G., Oshima, H.M.S.: Surface modification of in-ceram zirconia ceramic by Nd:YAG laser, rocatec system, or aluminum oxide sandblasting and its bond strength to a resin cement, Photomed. Laser Surg., 26, [3], 203 – 208, (2008).
15 Ariyaratnam, M.T., Wilson, M.A., Mackie, I.C., Blinkhorn, A.S.: A comparison of surface roughness and composite/enamel bond strength of human enamel following the application of the Nd:YAG laser and etching with phosphoric acid, Dent. Mater., 13, [1], 51 – 55, (1997).
16 Basunbul, G.I., Alzahrani, K.M., Almutairi, B., Alsunbul, H., Abduljabbar, T.: The impact of riboflavin, Nd: YAG laser, and ceramic primer pretreatment on surface roughness, bond failure, and adhesive strength of resin composite to lithium disilicate Ceramics: A scanning electron microscopy (SEM) analysis, J. Biomater. Tissue Eng., 13, [8], 882 – 887, (2024).
17 Akyil, M.Ş., Uzun, I.H., Bayindir, F.: Bond strength of resin cement to yttrium-stabilized tetragonal zirconia ceramic treated with air abrasion, silica coating, and laser irradiation, Photomed. Laser Surg., 28, [6], 801 – 808, (2010).
18 Kim, H.K., Ahn, B.: Effect of Al2O3 sandblasting particle size on the surface topography and residual compressive stresses of three different dental zirconia grades, Materials (Basel), [Internet], 14, [3], 1 – 19, (2021).
19 Alsunbul, H., Almutairi, B., Aljanakh, M., Abduljabbar, T.: Hybrid ceramic repair strength, surface roughness, and bond failure, using methylene blue-activated low-level laser therapy, carbon dioxide, and Ti: Al2O3 laser, Photodiagnosis Photodyn. Ther., 43, (2023).
20 Dikeç, E.V., Bayindir, F.: Effect of femtosecond, Er: YAG and Nd: YAG laser systems on bond strength resin cement with esthetic post system, Int. J. Appl. Dent. Sci., 6, [4], 441 – 447, (2020).
21 Maawadh, A.M., Almohareb, T., Al-Hamdan, R.S.: Repair strength and surface topography of lithium disilicate and hybrid resin ceramics with LLLT and photodynamic therapy in comparison to hydrofluoric acid, J. Appl. Biomater. Funct. Mater., 18, (2020).
22 Alfaawaz, Y.F., Alamri, R., Almohsen, F.: Adhesive bond integrity of experimental zinc oxide nanoparticles incorporated dentin Adhesive: an SEM, EDX, μ TBS, and rheometric analysis, Scanning, 2022 (2022).
23 Poosti, M., Jahanbin, A., Mahdavi, P., Mehrnoush, S.: Porcelain conditioning with Nd: YAG and Er:YAG laser for bracket bonding in orthodontics, Lasers Med. Sci., 27, [2], 321 – 324, (2012).
24 Usumez, A., Hamdemirci, N., Koroglu, B.Y., Simsek, I., Parlar, O., Sari, T.: Bond strength of resin cement to zirconia ceramic with different surface treatments, Lasers Med. Sci., 28, [1], 259 – 266, (2013).
25 Fornaini, C., Poli, F., Merigo, E. et al.: Nanosecond pulsed fiber laser irradiation for enhanced zirconia crown adhesion: morphological, chemical, thermal and mechanical analysis, J. Photochem. Photobiol. B Biol., 219, (2021).
26 Noda, M., Okuda, Y., Tsuruki, J., Minesaki, Y., Takenouchi, Y., Ban, S.: Surface damages of zirconia by Nd:YAG dental laser irradiation, Dent. Mater. J., 29, [5], 536 – 541, (2010).
27 Su, N., Yue, L., Liao, Y.: The effect of various sandblasting conditions on surface changes of dental zirconia and shear bond strength between zirconia core and indirect composite resin, J. Adv. Prosthodont., 7, [3], 214 – 223, (2015).
28 Zandparsa, R., Talua, N.A., Finkelman, M.D., Schaus, S.E.: An in vitro comparison of shear bond strength of zirconia to enamel using different surface treatments, J. Prosthodont., 23, [2], 117 – 123, (2014).
29 Kosmač, T., Oblak, C., Jevnikar, P., Funduk, N., Marion, L.: The effect of surface grinding and sandblasting on flexural strength and reliability of Y-TZP zirconia ceramic, Dent. Mater., 15, [6], 426 – 433, (1999).
30 Kim, H.E., Lim, M.J., Yu, M.K., Lee, K.W.: Changes in bond strength and topography for y-tzp etched with hydrofluoric acid depending on concentration and temperature conditions, Med., 56, [11], 1 – 11, (2020).
31 Sriamporn, T., Thamrongananskul, N., Busabok, C., Poolthong, S., Uo, M., Tagami, J.: Dental zirconia can be etched by hydrofluoric acid, Dent. Mater. J., 33, [1], 79 – 85, (2014).
32 You, G.E., Lim, M.J., Min, K.S., Yu, M.K., Lee, K.W.: Surface property changes observed in zirconia during etching with high-concentration hydrofluoric acid over various immersion times, Dent. Mater. J., 43, [1], 52 – 57, (2024).
33 Steling Rego, M.E., Nunes Guimarães Paes, P., Ribeiro da Silva Schanuel, F., Mendes Jardim, P.: Acid etching and silica coating effects on Y-TZP topography and ceramic/resin cement bond strength, Ceram. Int., 47, [4], 5235 – 5243, (2021).
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