A three-year randomized clinical trial evaluating direct posterior composite restorations placed with three self-etch adhesives

Sabbagh, Joseph; Masri, Layal El; Fahd, Jean Claude; Nahas, Paul

doi:10.1080/26415275.2021.1939034

Cited by 3 publications

(2 citation statements)

References 43 publications

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“…The use of resin-based composite dental materials (RBC) has increased worldwide, because of rising demand for cosmetic, tooth-colored, and mercury-free restorations [1]. Light-cured resin-based dental composite restorative materials are typically used in compound and complex cavities [2,3]. However, the limited depth of cure of these materials necessitates using multiple incremental layers when placing them in such cavities [4,5].…”

Section: Introductionmentioning

confidence: 99%

Evaluating flexure properties, hardness, roughness and microleakage of high-strength injectable dental composite: an in vitro study

Basheer,

Hasanain,

Abuelenain

2024

BMC Oral Health

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Background Recently, a new generation of high-strength flowable dental composites has been introduced by manufacturers. The manufacturers claim that these materials have enhanced mechanical and physical properties and are suitable for use in a wide range of direct anterior and posterior restorations, even in high-stress bearing areas. Aim The objective of this study was to assess certain physical and mechanical properties of these recently introduced high-strength flowable composites in comparison to conventional multipurpose dental composites. Methods Four types of high-strength flowable composites (Genial Universal FLO, Gaenial Universal Injectable, Beautifil Injectable, and Beautifil Flow Plus) were tested in experimental groups, while a nanohybrid conventional composite (Filtek Z350 XT) was used as the control. For flexure properties, ten rectangular samples (2 × 2 × 25 mm) were prepared from each composite material and subjected to 5000 cycles of thermocycling. Samples were then subjected to flexural strength testing using the universal testing machine. Another twenty disc-shaped specimens of dimensions (5 mm diameter × 2 mm thickness) were fabricated from each composite material for surface roughness (Ra) (n = 10) and hardness (VHN) test (n = 10). All samples underwent 5000 cycles of thermocycling before testing. Additionally, microleakage testing was conducted on 60 standardized class V cavities prepared on molar teeth and divided randomly into five groups (n = 12). Cavities were then filled with composite according to the manufacturer’s instructions and subjected to thermocycling for 1000 cycles before testing using methylene blue solution and a stereomicroscope. Results All tested materials were comparable to the control group in terms of flexural strength and surface roughness (p > 0.05), with Gaenial Universal FLO exhibiting significantly higher flexural strength compared to the other flowable composite materials tested. However, all tested materials demonstrated significantly lower elastic modulus and surface hardness than the control group (p < 0.05). The control group exhibited higher microleakage scores, while the lowest scores were observed in the Gaenial Universal FLO material (p < 0.05) Conclusion The physical and mechanical behaviors of the different high-strength flowable composites investigated in this study varied. Some of these materials may serve as suitable alternatives to conventional composites in specific applications, emphasizing the importance of dentists being familiar with material properties before making material selections.

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Section: Introductionmentioning

confidence: 99%

Evaluating flexure properties, hardness, roughness and microleakage of high-strength injectable dental composite: an in vitro study

Basheer,

Hasanain,

Abuelenain

2024

BMC Oral Health

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“…The light-cured resin-based dental composite restorative materials are commonly utilized in deep and large cavities worldwide [ 1 , 2 ]. Multiple incremental layers are needed for deeper and larger cavities due to the limited depth of cure of these materials [ 3 , 4 ].…”

Section: Introductionmentioning

confidence: 99%

Mechanical and Biomimetic Characteristics of Bulk-Fill Resin Dental Composites Following Exposure in a Simulated Acidic Oral Environment

et al. 2023

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During the last 10 years, various companies have marketed different “bulk-fill” resin dental composites for the restoration of posterior stress-bearing teeth; however, the impact of acidic conditions on these relatively newer materials has not been thoroughly investigated. Therefore, an attempt was made to evaluate the effect of acidic beverages on the mechanical biomimetic characteristics of four bulk-fill and one conventional nanohybrid resin-based dental composites (RBCs). The specimens of each RBC were stored in two acidic beverages namely ‘Orange Juice’ and ‘Coca-Cola’, whereas ‘dry’ and ‘distilled water’ storage of specimens served as controls. After 1 week of storage, flexural and surface hardness properties of specimens were determined using a universal testing machine and Vickers hardness tester, respectively. In general, the ‘Coca-Cola’ beverage caused the greatest degradation of flexural strength, flexural modulus, and surface hardness characteristics in all RBCs in contrast to the ‘dry’, ‘distilled water’ controls and ‘Orange Juice’ storage conditions. However, the overall mechanical biomimetic performance of nanohybrid RBCs was relatively better than all other bulk-fill RBCs and may, therefore, be considered a suitable candidate for the restoration of posterior stress-bearing permanent dentition.

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Evaluation of the Effect of Bioactive Varnish Application on the Marginal Micro Gap of Class II Composite Restoration: SEM Analysis

Sajjan,

Sindhuja,

Madhu

et al. 2023

World Journal of Dentistry

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A three-year randomized clinical trial evaluating direct posterior composite restorations placed with three self-etch adhesives

Cited by 3 publications

References 43 publications

Evaluating flexure properties, hardness, roughness and microleakage of high-strength injectable dental composite: an in vitro study

Evaluating flexure properties, hardness, roughness and microleakage of high-strength injectable dental composite: an in vitro study

Mechanical and Biomimetic Characteristics of Bulk-Fill Resin Dental Composites Following Exposure in a Simulated Acidic Oral Environment

Evaluation of the Effect of Bioactive Varnish Application on the Marginal Micro Gap of Class II Composite Restoration: SEM Analysis

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