Change in surface properties of two different dental resin composites after using various beverages and brushing

Elmalawany, Lamia M.; El-Refai, Dina A.; Alian, Ghada A.

doi:10.1186/s12903-023-03710-8

Cited by 5 publications

(1 citation statement)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A 500 g weight was placed over the glass slide for one minute to create a flat surface and standardize the force applied to it. Following the removal of the weight, light curing of the specimen was done via the glass slide [15]. LED light curing unit (Bluephase 2: Ivoclar Vivadent, Lichtenstein) with a light intensity of 1200 mW2 for 40 s was used.…”

Section: Sample Preparation For Surface Roughness and Vickers Hardnessmentioning

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

View full text Add to dashboard Cite

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.

show abstract

Section: Sample Preparation For Surface Roughness and Vickers Hardnessmentioning

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

View full text Add to dashboard Cite

show abstract

Effects of different beverages on the color stability and fluorescence of resin composites: in situ study

de Souza Oliveira,

Silva,

Silva

et al. 2024

Clin Oral Invest

View full text Add to dashboard Cite

Effects of immersion in various beverages, polishing and bleaching systems on surface roughness and microhardness of CAD/CAM restorative materials

Yılmaz,

Özdemir,

Gönüldaş

2024

BMC Oral Health

View full text Add to dashboard Cite

Background The aim of this study was to investigate the effect of an immune-boosting beverage with Sambucus nigra (SAM), an energy beverage (ENE), an in-office bleaching agent with a novel composition, and a fine-grain professional dental prophylaxis (PDP) paste on the surface roughness (Ra) and microhardness (MH) of CAD/CAM restorative materials over time. Methods Feldspathic ceramic (FC) and polymer infiltrated ceramic network (PICN) specimens were prepared ( N = 126). Glazing, polishing, bleaching and immersion in beverages groups were formed. Bleaching gel containing 25% Hydrogen Peroxide Superior was applied to the specimens with a bleaching pen. Ra and MH were measured at five time points of baseline, days 1, 14, 28 and after PDP. Scanning electron microscopy (SEM) images were taken after PDP. Statistics were performed by ANOVA and Bonferroni tests (α = 0.05). Results Ra increased over time regardless of material type, polishing method, beverage type and bleaching ( p < 0.0001). Glazed and polished FCs caused higher roughness than PICN, SAM and ENE than distilled water, and bleaching than no bleaching ( p < 0.0001). For glazed or polished FCs, MH decreased slightly lower at all time points, but for PICN, MH increased until day 28, not changing after PDP. Beverages decreased the MH of ceramics at all time points, but PDP did not lead to a change for PICN ( p < 0.0001). The MH decreased more in bleached specimens than in non-bleached specimens up to day 28 ( p < 0.0001). According to the SEM images after PDP, the glazed FC had numerous crack marks, pores and detached particles. The polished FC had traces of mechanical polishing. The polymer part of the PICN had voids, but the ceramic part was better preserved. Conclusions Both energy beverages and immune-boosting beverages can increase roughness on FCs compared to PICNs. There was no significant difference between glazing and polishing in terms of lower roughness in FCs. PDP tended to slightly increase the roughness for ceramics, while it tended not to change it for PICN. Beverages decreased the microhardness of ceramics. PDP further decreased the microhardness in glazed ceramics, but increased it in polished ones. In PICN the microhardness increased over time, but decreased slightly after PDP. Supplementary Information The online version contains supplementary material available at 10.1186/s12903-024-05256-9.

show abstract

Change in surface properties of two different dental resin composites after using various beverages and brushing

Cited by 5 publications

References 35 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

Effects of different beverages on the color stability and fluorescence of resin composites: in situ study

Effects of immersion in various beverages, polishing and bleaching systems on surface roughness and microhardness of CAD/CAM restorative materials

Contact Info

Product

Resources

About