Evaluation For Elastic Modulus Of CAD-CAM Milled And 3D Printed Denture Base Resins

Zeidan, Ahmed Abd El-Latif; El-Rahim, Ramy Abd; Helal, M. A.

doi:10.21608/ajdsm.2021.81731.1209

Cited by 3 publications

(1 citation statement)

References 13 publications

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“…However, it's important to note that a high modulus of elasticity alone is not su cient to ensure the durability and longevity of the denture. Other factors such as the material's toughness, resistance to wear, and ability to withstand impact forces also play a role in preventing denture fracture [9]. Hardness is another signi cant property that must be exhibited by denture base material to be able to resist permanent surface indentation.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Halloysite Nanotubes and Mult Wall Carbon Nanotubes on the Mechanical Properties of Poly (Methyl Methacrylate) Denture Base Nanocomposites

Aldwimi,

Alhareb,

Md.

et al. 2023

Preprint

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Polymethyl methacrylate (PMMA) resin is a popular material for denture bases due to its aesthetic properties and ease of processing, but it does have limitations in terms of its mechanical properties. PMMA resin is a brittle material and has low impact strength and fatigue resistance, which means that it is prone to cracking, chipping, and other forms of damage over time, especially when subjected to repeated stress or impact. The process of fabricating denture base composites involves using PMMA powder, benzoyl peroxide as a polymerization initiator, and a mixture of nanotube-treated fillers (multi-walled carbon nanotubes and halloysite nanotubes) as the reinforcing fillers. The fabrication process involves mixing the PMMA powder and treated nanotube fillers together with a “liquid component that contains methyl methacrylate and ethylene glycol Di methacrylate. The addition of a mixture of MWCNTs and HNTs into the PMMA denture base composite significantly improved the mechanical properties of the base composite, such as the flexural strength of 109.1MPa, flexural modulus of 3.62GPa, and tensile strength of 64.4MPa when compared to a pure PMMA matrix (G1); the Vickers hardness improvement was only 18.93kg/mm2. Therefore, the introduction of HNTs/MWCNTs mixture into PMMA is a potential way of improving the mechanical properties of PMMA denture bases (P < 0.05), which can have positive implications for their durability, wear resistance, and overall performance.

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Section: Introductionmentioning

confidence: 99%

The Effect of Halloysite Nanotubes and Mult Wall Carbon Nanotubes on the Mechanical Properties of Poly (Methyl Methacrylate) Denture Base Nanocomposites

Aldwimi,

Alhareb,

Md.

et al. 2023

Preprint

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Assessing the Current Landscape and Future Directions of Digital Denture Technology

Saini,

Zafar,

Adanir

et al. 2024

European Journal of General Dentistry

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Digital dentures are removable dental prostheses fabricated using computer-aided design/computer-aided manufacturing (CAD/CAM) technology. This study aimed to explore the trends in digital dentures. A comprehensive four-phase search and selection strategy was framed.Dimensions and Lens.org databases were used. Boolean operators were used to combine keywords.The most significant growth occurred by 2021, with 71 publications and 984 citations. Egypt had the highest publication rankings, with 46 total publications (TP) and 45 total citations (TC). The University of Geneva played a significant role in contributing to 16 TP and 491 TC. Egyptian Dental Journal ranked at the top. The group with four authors had an even higher number of authorships, with a total of 60. The top four keywords were CAD/CAM, 3D printing, CAD-CAM, complete denture, and digital dentistry. The Glossary of Prosthodontic Terms, Ninth Edition, was referenced 614 times and had the highest average number of citations (75.2). The top three writers had strong relationships with the three sources and preferred to publish using four keywords. The 11-author group, cluster 6, had the highest level of network cooperation.In conclusion, research on digital dentures has grown in terms of number of articles and citations.

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Effects of Smokeless Tobacco on Color Stability and Surface Roughness of 3D-Printed, CAD/CAM-Milled, and Conventional Denture Base Materials: An In Vitro Study

et al. 2023

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Tobacco consumption in its different forms can affect the optical and surface properties of dental materials that are used in the oral cavity. Thus, the present study was conducted to evaluate the effects of two commercially available smokeless tobacco products on the color stability and surface roughness of denture base resins that were fabricated using three different techniques (CAD/CAM milling, 3D printing, and conventional heat polymerization). A total of 126 denture base resin specimens were fabricated using the three different manufacturing techniques (n = 42 each). Specimens from each group were further subdivided into three subgroups (n = 14 each) and immersed in three different immersion media (a khaini suspension, a tabbaq suspension, and artificial saliva). The differences in color and surface roughness were assessed according to data that were collected and statistically analyzed using SPSS version 24.0. The tabbaq smokeless tobacco was found to cause greatest changes in color and surface roughness; the effect was observed to be highest in the 3D-printed specimens followed by the conventional heat-polymerized and CAD/CAM milled specimens. The mean changes in color and surface roughness were the highest for the tabbaq smokeless tobacco followed by the khaini smokeless tobacco and the artificial saliva. Statistically significant (p-value < 0.05) differences were observed among all techniques and suspensions. We concluded that the mean changes in color and surface roughness were significantly higher for the 3D-printed dentures compared to the conventional heat-polymerized and CAD/CAM-milled dentures. Thus, the results of the present study strengthened the concept that tobacco in any form can lead to changes in the color and surface roughness of denture base materials.

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Evaluation For Elastic Modulus Of CAD-CAM Milled And 3D Printed Denture Base Resins

Cited by 3 publications

References 13 publications

The Effect of Halloysite Nanotubes and Mult Wall Carbon Nanotubes on the Mechanical Properties of Poly (Methyl Methacrylate) Denture Base Nanocomposites

The Effect of Halloysite Nanotubes and Mult Wall Carbon Nanotubes on the Mechanical Properties of Poly (Methyl Methacrylate) Denture Base Nanocomposites

Assessing the Current Landscape and Future Directions of Digital Denture Technology

Effects of Smokeless Tobacco on Color Stability and Surface Roughness of 3D-Printed, CAD/CAM-Milled, and Conventional Denture Base Materials: An In Vitro Study

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