Biomaterials Adapted to Vat Photopolymerization in 3D Printing: Characteristics and Medical Applications

Journal of Functional Biomaterials, Journal Year: 2023, Volume and Issue: 15(1), P. 7 - 7

Published: Dec. 22, 2023

Along with the rapid and extensive advancements in 3D printing field, a diverse range of uses for have appeared spectrum medical applications. Vat photopolymerization (VPP) stands out as one most extensively researched methods printing, its main advantages being high speed ability to produce high-resolution structures. A major challenge using VPP 3D-printed materials medicine is general incompatibility standard resin mixtures requirements biocompatibility biofunctionality. Instead developing completely new materials, an alternate approach solving this problem involves adapting existing biomaterials. These are incompatible their pure form but can be adapted chemistry process through use innovative addition specific pre- post-printing steps. This review's primary objective highlight biofunctional biocompatible that been VPP. We present compare suitability these different applications propose other biomaterials could further order fulfill patient-specific requirements.

Language: Английский

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Use of Biomaterials in 3D Printing as a Solution to Microbial Infections in Arthroplasty and Osseous Reconstruction

Biomimetics, Journal Year: 2024, Volume and Issue: 9(3), P. 154 - 154

Published: March 1, 2024

The incidence of microbial infections in orthopedic prosthetic surgeries is a perennial problem that increases morbidity and mortality, representing one the major complications such medical interventions. emergence novel technologies, especially 3D printing, represents promising avenue development for reducing risk eventualities. There are already host biomaterials, suitable being tested antimicrobial properties when they coated with bioactive compounds, as antibiotics, or combined hydrogels antioxidant properties, chitosan metal nanoparticles, among others. materials discussed context this paper comprise beta-tricalcium phosphate (β-TCP), biphasic calcium (BCP), hydroxyapatite, lithium disilicate glass, polyetheretherketone (PEEK), poly(propylene fumarate) (PPF), poly(trimethylene carbonate) (PTMC), zirconia. While recent research results promising, further required to address increasing antibiotic resistance exhibited by several common pathogens, potential fungal infections, toxicity some nanoparticles. Other solutions, like incorporation phytochemicals, should also be explored. Incorporating artificial intelligence (AI) certain implants use AI against bacterial might represent viable solutions these problems. Finally, there legal considerations associated biomaterials widespread which must taken into account.

Language: Английский

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Dimensional accuracy of additive and subtractive manufactured ceramic-reinforced hybrid composite inlays: a CBCT-based in vitro study

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Feb. 19, 2025

The dimensional accuracy of digitally processed inlays is often questioned because inherent manufacturing inconsistencies associated with computer-aided design and (CAD/CAM). This study aimed to compare the absolute marginal discrepancy (AMD), gap (MG), internal (IG), overall (OD) three-dimensional (3D) printed, milled conventional inlays. Forty resin dies were 3D-printed from a class II mesiococclusodistal preparation on typodont randomly distributed into four groups 10 each. Optical impressions taken for three fabricate CAD/CAM inlays: Group PVC, 3D printed VarseoSmile Crownplus; PVT, TriniQ; MVE, using Vita Enamic. For CGP (control), was conventionally fabricated Gradia Plus. These stabilized subjected cone‒beam computed tomography measure discrepancies in mesiodistal buccolingual sectional images. All differed significantly among (one-way ANOVA, P > 0.05). mean OD greater MVE than PVT CGP; AMD MG PVC (Tukey test, Compared other groups, inlays, especially TriniQ, presented closer fit.

Language: Английский

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Additive manufacturing trueness and internal fit of crowns in resin modified with a commercially available ceramic composite concentrate

Journal of Prosthetic Dentistry, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 1, 2024

Language: Английский

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Mechanical properties and reliability of an additively manufactured resin incorporated with a commercially available ceramic composite concentrate

Journal of Prosthetic Dentistry, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

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Textured Intaglio Micropores Improve the Properties of 3D-Printed Zirconia Crowns

Journal of Dental Research, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 14, 2025

Monolithic zirconia crowns fabricated using computer-aided design and manufacturing (CAD-CAM) via subtractive (SM) exhibit limited bonding properties compared with other ceramics. Traditional methods such as air abrasion can improve but may negatively affect the mechanical stability of zirconia. Nanoparticle jetting (NPJ), an emerging 3-dimensional–printing technology for restorations, offers potential to create intricate structures, porous surfaces, high precision. This study aimed demonstrate that NPJ-manufactured monolithic intaglio enhance while maintaining strength. Standard NPJ commercially available SM (SZC) were used control groups. The surface roughness, fracture load, 2-body wear, shear bond strength (SBS) evaluated. (NIPC) exhibited satisfactory comparable SZC (within 1-mm occlusal thickness). Although NIPC retained a relatively original it demonstrated similar aging resistance after thorough polishing. Furthermore, showed significantly superior roughness SBS conventionally air-abraded Overall, this successfully viable restorative option, offering robust reliable properties.

Language: Английский

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Novel 3D printed resin crown versus prefabricated zirconia crown for restoring pulpotomized primary molars: in vitro evaluation of fracture resistance and marginal gap

European Archives of Paediatric Dentistry, Journal Year: 2025, Volume and Issue: unknown

Published: May 2, 2025

Abstract Aim This in vitro study aimed to evaluate the marginal gap and fracture resistance of 3D printing microfilled hybrid resin crowns comparison prefabricated zirconia on pulpotomized primary teeth. Materials methods Twenty molars were selected for randomly divided into two groups ( n = 10). Group1 received printed crowns; Group 2 crowns. To simulate 6 months oral conditions, thermodynamic cycling was performed, measured using a stereomicroscope with digital camera at 40 × magnification. For each sample, eight points along margins axial surface captured. The group assessed by applying increasing load till crown computer-controlled universal testing machine. Data tested normality Shapiro–Wilk test. analyzed an independent t A significant level set P < 0.05. Results Regarding resistance, had statistically higher mean values than group; 1235.97 ± 412.12 N 576.56 221.53 N, respectively 0.001). However, there no difference between types average 32.00 7.54 34.14 9.79 Conclusion could be suitable esthetic alternative restoring pulp-treated molars. It is possible provide additional solution parents/children satisfy need restoration Clinical trial Not applicable (in study).

Language: Английский

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3D-printed resin composite posterior fixed dental prosthesis: a prospective clinical trial up to 1 year

Frontiers in Dental Medicine, Journal Year: 2024, Volume and Issue: 5

Published: June 4, 2024

This clinical trial evaluated the behavior of 3D-printed posterior resin composite fixed dental prostheses (FDPs). Between 10 October 2020 and 5 August 2022, 49 patients aged 19-60 years (16 men, 33 women) received 68 3-unit FDPs (ELS Even Stronger, Saremco, Switzerland). were followed up 2 weeks after placement (baseline), 6 months placement, 1 year by two independent calibrated observers using modified FDI criteria for anatomical form, secondary caries, marginal adaptation, surface roughness, color match, fracture material, staining surface, margin, approximate retention, gingival health, patient's view. Survival analyses performed Kaplan-Meier analyses. A total 59 restorations mean observation period was 8.63 months. Failure types categorized as mechanical biological. Failures observed in 14 FDPs. Nine showed failure five biological failure. Mechanical failures mostly experienced connector fractures. Eight cohesive fractures (seven a single at either mesial or distal one pontic itself). Biological failures, including root canal treatment tissue reactions, within first Based on survival rate 86.7% complications; this corresponded to 71.6% (Kaplan-Meier). After year, luster loss (score 4), two-color mismatches two-surface 4). acceptable follow-up, providing that mainly associated with region, which requires revision design parameters. Clinical Trials.Gov, NCT04600297.

Language: Английский

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Advances in Dental Restorations: A Comprehensive Review of Machinable and 3D‐Printed Ceramic‐Reinforced Composites

Journal of Esthetic and Restorative Dentistry, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 18, 2024

ABSTRACT Objective This review aims to evaluate the current understanding and clinical applications of machinable ceramic‐reinforced composites (CRCs) emerging first generation 3D‐printed CRCs in dental restorations. Overview Machinable CRCs, introduced over a decade ago, have shown moderate success short‐ medium‐term applications, particularly low‐stress areas. However, their long‐term durability limitations, such as increased wear marginal deterioration, restrict use high‐stress situations full crowns. The offers customization advantages but is still early development exhibits lower mechanical strength higher rates than CAD‐CAM traditional ceramics. Additionally, classification definitions surrounding remain ambiguous, ADA categorizations do not clearly differentiate from ceramics, complicating indication, usage, billing practices. Conclusion are moderately successful while show limitations resistance durability, raising concerns for definitive Both require further research validation. Clinical Significance best suited may be more appropriate provisional use. Until data available, ceramics should preferred or full‐coverage Clearer porcelain/ceramic comprehensive application guidelines urgently needed support clinician decision‐making improve patient outcomes.

Language: Английский

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Effect of Print Orientation and Thermal Aging on the Flexural Strength of Zirconia-Reinforced Three-Dimensional-Printed Restorative Resin Materials

Molecules, Journal Year: 2025, Volume and Issue: 30(11), P. 2337 - 2337

Published: May 27, 2025

This study evaluated the effects of print orientation and thermal aging on flexural strength (FS) modulus (FM) novel permanent three-dimensional (3D)-printed polymethyl methacrylate (PMMA) resins reinforced with nano-zirconia nano-silica. Bar-shaped specimens (25 × 2 mm) were fabricated using a digital light processing (DLP) 3D printer (Asiga Max UV, Asiga Inc., Australia) in two orientations (0° 90°). Specimens underwent three-point bending tests at 24 h after artificial (10,000 30,000 cycles) to simulate one three years intraoral conditions. Scanning electron microscopy (SEM) was used analyze fracture patterns. Print did not significantly affect FS or FM (p > 0.05). However, reduced 10,000 cycles < 0.001), further deterioration cycles. The micro hybrid resin composite exhibited higher than 3D-printed materials throughout aging. SEM analysis revealed distinct patterns, displaying radial fractures exhibiting horizontal fractures. These findings indicate that plays more critical role long-term mechanical performance restorative orientation. provides original data prolonged behavior dental resins. Furthermore, comparative evaluation protocols simulating service represents contribution existing literature. Further studies are required optimize durability restorations.

Language: Английский

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