Resin-Based Composites for Direct and Indirect Restorations

Bompolaki, Despoina; Lubisich, Erinne Bissonnette; Fugolin, Ana Paula Piovezan

doi:10.1016/j.cden.2022.05.003

Cited by 16 publications

(11 citation statements)

References 80 publications

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“…Therefore, hypothesis #iii has to be accepted. This finding has a clinical relevance, as the use of lubricants will not affect the restorative material translucency that is pivotal for the esthetic success [27][28][29]. Such a finding is in accordance with Araujo et al [8], who reported a significant change in translucency after a 2 month staining simulation in the oral cavity, with a significantly lower change in opacity for specimens treated with a Universal Adhesive (Adper Universal, 3M ESPE).…”

Section: Discussionsupporting

confidence: 73%

Influence of Modeling Liquids and Universal Adhesives Used as Lubricants on Color Stability and Translucency of Resin-Based Composites

et al. 2023

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The use of lubricants during restorative procedures is a clinically common practice to alleviate the stickiness of resin-based composite (RBCs) materials and to improve its handling. This study evaluated the effects of three modeling liquids (ML) and one universal adhesive (UA) used as lubricants during composite layering on the color stability and translucency of RBCs. Methods. The following materials were applied between every 1 mm RBC layer (total restoration height of 4 mm): GC modeling liquid (GCML, GC Corporation, Tokyo, Japan), composite wetting resin (UPWR, Ultradent Products, South Jordan, UT, USA), Bisco modeling resin (BSMR, Bisco Inc., Schaumburg, IL, USA) as an ML and Clearfil Universal Bond Quick (KUBQ, Kuraray Noritake Dental, Tokyo, Japan) as a UA. Lubricant-free specimens were used as the control. Color coordinates (L*, a* and b*) were recorded at baseline and after a simulation of 1 month of coffee consumption. Data were analyzed using ANOVA and a post hoc Tukey test (p < 0.05). Results. All lubricants induced a color change higher than the perceptibility threshold (ΔE00 > 0.81). GCML showed the highest color stability. The use of KUBQ resulted in significantly higher a* values (p = 0.001) at baseline and after staining. KUBQ and UPWR significantly influenced the color stability (ΔE00, p = 0.0001) after staining, overcoming the clinical acceptability threshold (ΔE00 > 1.77). Conclusions. The use of lubricants may affect color stability at baseline and after simulation of staining. Translucency was not affected at baseline nor after staining. Clinical Significance. Clinicians should be aware that some lubricants may affect color stability, even at baseline.

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Section: Discussionsupporting

confidence: 73%

Influence of Modeling Liquids and Universal Adhesives Used as Lubricants on Color Stability and Translucency of Resin-Based Composites

et al. 2023

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“…Since the advent of adhesive dentistry, dental composite resins have undergone a significant transformation and gradually replaced dental amalgam as the choice of permanent restorative materials [ 30 , 31 ]. In addition, direct composite restoration is gaining vast acceptance among patients as it can closely match the natural tooth colour, making “Direct composite resin” the second highest ranked topic.…”

Section: Discussionmentioning

confidence: 99%

Identifying relevant topics and their competency levels for dental materials science: a fuzzy Delphi study

et al. 2023

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Background Dental materials science is an important core course in undergraduate dental programs which integrates foundational concepts of chemical engineering and materials science into clinical dentistry. The present study aimed to identify relevant dental materials science topics for Malaysian undergraduate dental curricula and to determine their appropriate competency levels in terms of cognitive and psychomotor taxonomies. Methods Potential dental materials science topics were drafted in alignment with the revised national competency statement. The list of topics was further amended after comparing it with those recommended topics in the literature. Fuzzy Delphi method was applied. Experts were selected based on the different inclusion criteria. They ranked the topics using a five-point Likert scale and recommended the appropriate cognitive and psychomotor levels. Next, fuzzy evaluation was performed. Consensus was deemed for a topic to be included if (a) the average expert agreement was ≥ 75%, (b) the d-construct threshold value for each topic was ≤ 0.2 and (c) the average fuzzy number was ≥ 0.5. Results Sixty-two experts participated in the study. They accepted 33 out of 36 potential dental materials science topics. The average Likert score and fuzzy number ranged from 3.63 to 4.92 and 0.526 to 0.784, respectively. Furthermore, “Endodontic materials” was ranked as the most significant topic. Meanwhile, many topics required dental students to demonstrate a cognitive level of “Apply” and a psychomotor level of “Guided response”. Based on mean scores, “Impression materials” was rated as the most cognitively demanding topic, whilst “Temporary restorative materials” was the most demanding topic for psychomotor taxonomy. Conclusion The present study has identified relevant dental materials science topics and their appropriate cognitive and psychomotor levels using the Fuzzy Delphi approach. The findings of the present study form the basis for future studies to develop measurable learning outcomes, design corresponding innovative pedagogy and propose assessment criteria for each topic.

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“…A key element of this technology is 3D printed resins, used for provisional restorations, which have distinct advantages [ 5 ]. When it comes to making complicated geometry, traditional manufacturing processes frequently have restrictions, but 3D printing allows for detailed designs that may be adjusted to individual demands [ 5 , 6 ]. Furthermore, resins offer a wide range of qualities, including flexibility, strength, and transparency [ 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

“…When it comes to making complicated geometry, traditional manufacturing processes frequently have restrictions, but 3D printing allows for detailed designs that may be adjusted to individual demands [ 5 , 6 ]. Furthermore, resins offer a wide range of qualities, including flexibility, strength, and transparency [ 6 , 7 ]. This adaptability permits the production of objects with a vast range of functions and applications [ 6 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Impact of Nanoparticle Addition on the Surface and Color Properties of Three-Dimensional (3D) Printed Polymer-Based Provisional Restorations

AlGhamdi,

Alatiyyah,

Almedarham

et al. 2024

Nanomaterials

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This study aimed to evaluate and compare the impact of additives such as ZrO2 and SiO2 nanoparticles (ZrO2NP or SiO2NP) on the hardness, surface roughness, and color stability of 3D printed provisional restorations. Two hundred samples in total were printed using 3D printed resins (ASIGA, and NextDent). Each resin was modified with ZrO2NPs or SiO2NPs in two different concentrations (0.5 wt% and 1 wt%), while one group was kept unmodified (n = 10). Disc-shaped (15 × 2.5 mm) samples were designed and printed in accordance with the manufacturer’s recommendation. Printed discs were evaluated for color changes through parameters CIELAB 2000 system (ΔE00), hardness using Vickers hardness test, and surface roughness (Ra) using a noncontact profilometer. After calculating the means and standard deviations, a three-way ANOVA and Tukey post hoc test were performed at α = 0.05. The addition of ZrO2NPs or SiO2NPs to ASIGA and NextDent resins significantly increased the hardness at a given level of concentration (0.5% or 1%) in comparison with pure (p < 0.001), with no significant difference between the two modified groups per resin type (p > 0.05). The highest hardness value was detected in 1% ZrO2NPs with 29.67 ± 2.3. The addition of ZrO2NPs or SiO2NPs had no effect on the Ra (p > 0.05), with 1% ZrO2NPs showing the highest value 0.36 ± 0.04 µm with NextDent resin. ZrO2NPs induced higher color changes (∆E00), ranging from 4.1 to 5.8, while SiO2NPs showed lower values, ranging from 1.01 to 1.85, and the highest mean ∆E00 was observed in the 1% ZrO2NPs group and NextDent resin. The incorporation of ZrO2NPs and SiO2NPs in 3D printed provisional resins increased the hardness without affecting the surface roughness. The optical parameters were significantly affected by ZrO2NPs and less adversely affected by SiO2NPs. Consequently, care must be taken to choose a concentration that will improve the materials’ mechanical performance without detracting from their esthetic value.

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Resin-Based Composites for Direct and Indirect Restorations

Cited by 16 publications

References 80 publications

Influence of Modeling Liquids and Universal Adhesives Used as Lubricants on Color Stability and Translucency of Resin-Based Composites

Influence of Modeling Liquids and Universal Adhesives Used as Lubricants on Color Stability and Translucency of Resin-Based Composites

Identifying relevant topics and their competency levels for dental materials science: a fuzzy Delphi study

Impact of Nanoparticle Addition on the Surface and Color Properties of Three-Dimensional (3D) Printed Polymer-Based Provisional Restorations

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