Effect of the CO2 Laser as Surface Treatment on the Bond Strength of Heat Cured Soft Liner to the High Impact Acrylic Denture Base Material

Aziz, Hawraa Khalid

doi:10.12816/0038615

Cited by 8 publications

(4 citation statements)

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“…Furthermore, (14) shown that treating the surface of denture base resins with the laser has been said to be a simple and safe process. Additionally, the recent findings support the claims made by (15), who claimed that the PMMA's surface had been modified by lasing in order to expand its surface area and add mechanical locking.…”

Section: Discussionsupporting

confidence: 78%

Bond Strength Of Acrylic Soft Liner To Nd:Yag Laser-Treated Thermoplastic Acrylic Denture Base Material

Alabady¹,

Khalaf²

2023

3C Tecnología

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Aim of the study: Using surface roughness and tensile bond strength tests, the objective of this investigation was to ascertain the impact of laser surface modification on the binding strength of injectable thermoplastic acrylic denture base material to acrylic-based soft-liner material. Materials and methods: Acrylic base soft liner material was bonded to injectable thermoplastic acrylic resin (Deflex). Forty specimens were created (20 disc, 20 dumbbells) 10 of each specimen type as control specimens, and 10 were treated with nano pulse Nd: YAG laser. The data were analyzed using the Kruskal-Wallis test and unpaired t-test (a=.05) and the roughness test was performed utilizing a double column universal test machine. Results: Compared to the control groups, the laser group had much increased roughness and tensile bond strength. Conclusions. Following Nd:YAG laser surface treatment, the tensile bonding strength between acrylic soft-liner material and thermoplastic acrylic was increased.

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Section: Discussionsupporting

confidence: 78%

Bond Strength Of Acrylic Soft Liner To Nd:Yag Laser-Treated Thermoplastic Acrylic Denture Base Material

Alabady¹,

Khalaf²

2023

3C Tecnología

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“…Such an expansion in quick succession may turn cause the material around the reaction area to suddenly ablate and might increase the surface area of the PMMA surface due to the emergent roughness. This would mean that the soft liner materials adhere into the uneven surfaces or pits created by the laser application, and increase the SBS value in the end (Aziz, 2017). Further research and investigation suggested the Nd:YAG laser system, that is why the Nd:YAG has been chosen in the present study (Usumez et al, 2004).…”

Section: Discussionmentioning

confidence: 98%

“…[Figures 4 and 5] The remaining 80 PMMA strips were sandblasted with AL 2 O 3 (250 μm) for 1 min (Aziz, 2017). The PMMA strips were then applied with the dental stone (SYNA ROCK, Germany), together with glass spacers with dimensions of 10 × 10 × 3 mm (length, width, and thickness, respectively) to provide space for the soft liner materials after their removal.…”

Section: Description Of Study Samplementioning

confidence: 99%

Evaluation of Bond Strength and Dimensional Accuracy of Soft Liner to Microwave Cured Denture Base Material

Fatah

Hasan

2020

Polytechnic j.

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Today, soft liners are being widely used in dental practices by their application to the inner surfaces of the denture with hopes to evenly distribute any potential uneven forces, and to provide a cushion effect to the oral mucosa of the patient mouth. The aim of this study is to investigate the influence of (a) polymethylmethacrylate (PMMA) denture base material curing technique, (b) Molloplast B soft liner curing technique, and (c) PMMA surface treatment, on the “shear bond strength” (SBS) between the Molloplast B liner and PMMA. A total of 80 samples were used in this study to evaluate the SBS performance of microwave (Nature-Cryl, Acron Gc, Japan) and conventional water bath (Ivoclar triplex, Liechtenstein) curing techniques of PMMA, and to evaluate the curing technique of soft liner material Molloplast B (DETAX,GERMANY). Surface treatment of PMMA was performed for half of the samples using neodymium:yttrium aluminum-garnet Nd:YAG laser, and the other half of the samples were surface-treated using AL2O3 sandblasting method. The results showed that the highest mean value in conventional water bath-cured soft liner was 26.69 MPa, whereas the lowest mean value for microwave-cured soft liner was 15.22 MPa. No significant difference was observed between the SBS performance regarding the PMMA surface treatment and curing techniques. Conventional water bath curing technique for soft liner treatment improved the SBS performance. Regarding the PMMA curing technique, the conventional water bath achieved higher SBS, yet the difference was not statistically significant. Finally, surface treatment using laser improved the SBS compared to sandblasted method, but the improvement here was also statistically insignificant.

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“…These microorganisms cause diseases around the denture and oral cavity, such as denture stomatitis. 3,4 Candida albicans, one of the microorganisms in the oral cavity, may increase the number of attachments to the soft liner surface of the denture. A treatment on the surface of the soft liner of acrylic resin denture is needed to reduce the attachment of Candida albicans.…”

Section: Intoductionmentioning

confidence: 99%

Candida albicans adherence on soft denture liner coated with silica and titanium nanoparticles

Aditama,

Maharani

2023

Majalah Kedokteran Gigi Indonesia

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The soft liner of acrylic resin dentures, used to coat removable partial dentures, still has drawbacks in the easy attachment of Candida albicans fungus. A treatment on the surface of the acrylic resin denture soft liner is needed to reduce the attachment of Candida albicans. Silicon dioxide (SiO2) and titanium dioxide (TiO2) nanoparticles have antimicrobial properties because they can induce photocatalytic production. This study aims to determine the effect of silica and titanium coating concentration on the attachment of Candida albicans to the soft liner of an acrylic resin denture. This study used 48 samples for 2 types of research. Each research consisted of 4 groups with 6 samples each. The samples were disc-shaped, with a diameter of 10 mm and a thickness of 2 mm. Silica and titanium coating materials of 0.5%, 1%, and 2% were obtained by mixing each nanoparticles of 0.5 g, 1 g, and 2 g in 100 ml of ethanol. After the application of the coating, the attachment test of Candida albicans was carried out. Candida albicans in SDA media were counted using a colony counter. The analysis was carried out using a one-way ANOVA test for each experiment. The ANOVA results showed an effect of silica and titanium coating concentrations on the attachment of Candida albicans to the soft liner of an acrylic resin denture (F = 10.929; p < 0.05 for silica, and F = 9.830; p < 0.05 for titanium). The group with a 2% silica coating concentration had the least amount of Candida albicans among all groups (0.48 ± 0.98 x 107 CFU/ml), as well as the group with a 2% titanium coating concentration (0.30 ± 0.83 x 107 CFU/ml). In conclusion, this study shows that the concentration of silica and the 2% titanium coating is the most effective in preventing the attachment of Candida albicans to the soft liner of acrylic resin dentures.

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Effect of the CO2 Laser as Surface Treatment on the Bond Strength of Heat Cured Soft Liner to the High Impact Acrylic Denture Base Material

Cited by 8 publications

References 0 publications

Bond Strength Of Acrylic Soft Liner To Nd:Yag Laser-Treated Thermoplastic Acrylic Denture Base Material

Bond Strength Of Acrylic Soft Liner To Nd:Yag Laser-Treated Thermoplastic Acrylic Denture Base Material

Evaluation of Bond Strength and Dimensional Accuracy of Soft Liner to Microwave Cured Denture Base Material

Candida albicans adherence on soft denture liner coated with silica and titanium nanoparticles

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