Effect of Different Neutralizing Agents on Feldspathic Porcelain Etched by Hydrofluoric Acid

Sriamporn, Tool; Kraisintu, Ploypim; See, Lily Pachanin; Swasdison, Somporn; Klaisiri, Awiruth; Thamrongananskul, Niyom

doi:10.1055/s-0039-1688535

Cited by 9 publications

(7 citation statements)

References 29 publications

(45 reference statements)

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“…However, in many studies, a higher concentration (9.5-10%) of HF acid has been used [13,[17][18][19]. This higher concentration corresponds to the recommended surface treatment of feldspathic ceramic, which is usually 9-10% HF [20,21]. Studies examining the effect of overetching (higher acid concentration and/or longer exposure time) on the bond strength (SBS) of lithium disilicate to resin cement have led to contradictory results.…”

Section: Introductionmentioning

confidence: 99%

Effect of Different Surface Treatments of Lithium Disilicate on the Adhesive Properties of Resin Cements

et al. 2021

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The aim of the current study was to evaluate the influence of hydrofluoric (HF) acid concentration and conditioning time on the shear bond strength (SBS) of dual cure resin cement to pressed lithium disilicate ceramic compared to treatment with an Etch and Prime self-etching glass-ceramic primer (EP). A total of 100 samples of pressed lithium disilicate (IPS e.max Press, Ivoclar Vivadent) were randomly divided into five groups (n = 20) according to surface treatment: two different concentrations of HF (5% or 9%), for different durations (20 or 90 s), or treatment with EP. Adhesion of light-cured resin cement to the treated surface was tested by the SBS test. The substrate surfaces of the specimen after failures were examined by SEM. Data were analyzed using Weibull distribution. The highest cumulative failure probability of 63.2% of the shear bond strength (η parameter) values was in the 9% HF −90 s group (17.71 MPa), while the lowest values were observed in the 5% HF −20 s group (7.94 MPa). SBS values were not affected significantly by the conditioning time (20 s or 90 s). However, compared to treatment with 5% HF, surface treatment with 9% HF showed a significantly higher η (MPa) as well as β (reliability parameter). Moreover, while compared to 9% HF for 20 s, EP treatment did not differ significantly in SBS values. Examination of the failure mode revealed a mixed mode of failure in all the groups. Within the limits of this study, it is possible to assume that IPS e.max Press surface treatment with 9% HF acid for only 20 s will provide a better bonding strength with resin cement than using 5% HF acid.

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Section: Introductionmentioning

confidence: 99%

Effect of Different Surface Treatments of Lithium Disilicate on the Adhesive Properties of Resin Cements

et al. 2021

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“…Shaik et al, Chaudhary et al, and Sriamporn et al also used SEM-EDX in their in vitro studies. [27][28][29] The study's protocol conditions were most compatible with the oral conditions. The remineralizing solution used is the closest in its composition to mineral ions and in its supersaturation to natural saliva as reported first by ten Cate and Duijsters.…”

Section: Discussionmentioning

confidence: 99%

“…Shaik et al, Chaudhary et al, and Sriamporn et al also used SEM-EDX in their in vitro studies. 27 28 29 …”

Section: Discussionmentioning

confidence: 99%

Comparison of the Remineralizing Effect of Brushing with Aloe vera versus Fluoride Toothpaste

2020

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Objectives The aim of the present in vitro study is to compare the remineralization brushing effect of three toothpastes and Aloe vera (AV) gel. Materials and Methods Forty sound extracted teeth were placed in a demineralizing solution for 4 days and randomly assigned to four groups: group A: 1,450-ppm fluoride toothpaste; group B: AV nonfluoridated toothpaste; group C: AV 1,000-ppm fluoridated toothpaste; and group D: AV gel. A 3-minute pH cycling was performed twice a day for each group for 12 days. Specimens were analyzed before and after by scanning electron microscope—energy dispersive X-ray. Statistical analysis The outcomes were analyzed by Kolmogorov–Smirnov’s tests, repeated-measures analyses of variance followed by univariate analyses, and Bonferroni’s multiple comparisons tests to compare the calcium-to-phosphorus (Ca:P) ratio within time among toothpaste groups. Results Following remineralization, the Ca:P ratio increased in all groups. The difference of the Ca:P ratio was not significant between groups C, D, and A. The mean ratio was significantly lower in group B (p-value = 0.026). Conclusions The AV gel demonstrated a remineralization capacity equal to that of the 1,450-ppm fluoride toothpaste. In contrast, fluoride-free AV toothpaste showed a lower remineralization efficiency. Further studies are required to understand its mechanism.

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“…Ultradent® Porcelain Etch 9% buffered (Ultradent, South Jordan, USA) Hydrofluoric acid etchant was applied on the unglazed surface of the ceramic discs by a brush following the manufacturer's instruction then removed by air/ water spray then dried. [30][31][32][33] The laser surface treatment protocol was carried out using Er,Cr:YSGG laser (Waterlase iplus, BIOLASE, Inc. USA) of wavelength 2790 nm (power setting: 4.5 watt, repetitive rate of 50 Hz "pulse per second" and pulse duration "pulse length": 60 µs) [23], [24] with a sweeping motion directing the Waterlase Laser Tip MGG6-9 (BIOLASE, Inc. USA) 45 o angle to the unglazed ceramic surface at a distance of 2mm with 80% water and 60% air for 60 seconds.…”

Section: Samples' Preparationmentioning

confidence: 99%

Effect of Er,Cr:YSGG Laser Versus Acid Etching Surface Treatment on the Surface Roughness and Topography of Two Pressable Lithium Disilicate Ceramics. “In-Vitro Study”.

Tarek

Mosleh

Zaghloul

2021

Egyptian Dental Journal

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Objective: To assess the effect of two surface treatment protocols of two pressable lithium disilicate ceramics with different thicknesses on the surface roughness and topography. Material and methods:Sixty four lithium disilicate ceramic discs were divided into two groups (n=32); IPS e.max Press and Initial TM LiSi Press. Each group was subdivided into two subgroups (n=16) according to thicknesses (0.5mm and 1mm). Each subgroup was divided into two subdivisions (n=8) according to the surface treatment; Er:Cr:YSGG Laser and hydrofluoric acid etching. Artificial aging was performed for all the specimens. Surface roughness (Ra) before and after surface treatment protocol was measured using contact stylus profilometer and their topographical changes were identified using scanning electron microscope.Results: there was no significant difference in Ra values between the two ceramic types before and after surface treatment. There was no significant difference in Ra values between the two surface treatments on both ceramics. There was a difference in the effect of the surface treatments on the topography of the ceramics Conclusion: Both surface treatments have comparable effect on the surface roughness of lithium disilicate ceramic but have different effect on the ceramic's topography.

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Effect of Different Neutralizing Agents on Feldspathic Porcelain Etched by Hydrofluoric Acid

Cited by 9 publications

References 29 publications

Effect of Different Surface Treatments of Lithium Disilicate on the Adhesive Properties of Resin Cements

Effect of Different Surface Treatments of Lithium Disilicate on the Adhesive Properties of Resin Cements

Comparison of the Remineralizing Effect of Brushing with Aloe vera versus Fluoride Toothpaste

Effect of Er,Cr:YSGG Laser Versus Acid Etching Surface Treatment on the Surface Roughness and Topography of Two Pressable Lithium Disilicate Ceramics. “In-Vitro Study”.

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