Effect of different scaling methods and materials on the enamel surface topography: An in vitro SEM study

Ankily, Mahmoud Al; Makkeyah, Fatma; Bakr, Mahmoud M.; Shamel, Mohamed

doi:10.4103/jioh.jioh_121_20

Cited by 9 publications

(9 citation statements)

References 38 publications

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“…A standard horizontal movement of 5 mm and three cycles of 20 seconds each were performed by the ultrasonic handpiece at a 2-Hz speed. 21,22 Scaling was performed on all groups, then group SE was polished using Eve Diapro LS polishers and group SD was polished using Diatech Shape-Guard ceramic polishing plus kit. The polishing process was performed following the manufacturer's recommendations.…”

Section: Methodsmentioning

confidence: 99%

Effect of Two Different Intraoral Polishing Systems on Surface Roughness, Color Stability, and Bacterial Accumulation of Zirconia-Reinforced Lithium Silicate Ceramic

Makkeyah,

Moustafa,

Bakr

et al. 2024

Eur J Dent

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Objective The aim of this study was to investigate the effects of two intraoral polishing methods on zirconia-reinforced lithium silicate ceramic after ultrasonic scaling. Materials and Methods Thirty disc-shaped samples of zirconia-reinforced lithium silicate were constructed. Freshly extracted bovine teeth were collected and cleaned then the discs were cemented into a cavity prepared onto their labial surface. The samples were divided into three groups (10 samples per group); S: Scaling only, SE: Scaling followed by polishing using Eve Diapro lithium disilicate polishers, SD: Scaling followed by polishing using Diatech ShapeGuard ceramic polishing plus kit. The surface roughness was evaluated after scaling and polishing the samples. For color stability, the samples were stored for 12 days at 37°C in an incubator to simulate 1-year consumption of coffee. L*a*b* color parameters were assessed using VITA Easyshade Advance 4.0 before and after the staining procedure and the color difference was measured. Finally, bacterial accumulation was evaluated by incubating the samples with a suspension of Streptococcus mutans ( S. mutans), after that the S. mutans colonies were counted to obtain the values of colony-forming units (CFU). The final overall roughness, change in color and bacterial count were compared between all groups using one-way ANOVA and Tukey's post-hoc analysis. The Pearson correlation coefficient was used to determine the correlation between continuous variables. The cutoff for significance was chosen at p ≤ 0.05. Results Scaling induced surface roughness of the zirconia-reinforced lithium silicate ceramic was significantly decreased after using both intraoral polishing systems and this was accompanied by a significant decrease in color change and bacterial count. Conclusion Intraoral polishing techniques can reduce the roughness of the surface of zirconia reinforced lithium silicate restorations induced due to scaling and subsequently reduce the stainability and bacterial accumulation.

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Section: Methodsmentioning

confidence: 99%

Effect of Two Different Intraoral Polishing Systems on Surface Roughness, Color Stability, and Bacterial Accumulation of Zirconia-Reinforced Lithium Silicate Ceramic

Makkeyah,

Moustafa,

Bakr

et al. 2024

Eur J Dent

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“…For the purpose of standardization of brushing procedure, a specially designed brushing apparatus was designed and fabricated (Figure 1) [13,14]. Brushing apparatus was set at 120 strokes /min, with a load of 250 g. Then the discs were rinsed with water for 30 seconds to wash off any residual paste.…”

Section: Methodsmentioning

confidence: 99%

In vitro comparative SEM analysis of nano-hydroxyapatite toothpaste and diode laser: evaluation of efficacy of dentinal tubular occlusion

Shamel¹,

Banna²

2022

jos

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Introduction: Dentin hypersensitivity (DH) is a very common problem that faces many patients and maintaining treatments with a long term effectiveness remains a challenge. Based on hydrodynamic theory, the main approach of overcoming DH are tubular occlusion. Objectives: The aim of this study was to discover the efficacy of diode laser alone and in combination with a desensitizing toothpaste containing nano-hydroxyapatite (nHap) to evaluate dentinal tubule occlusion after acid challenge under scanning electron microscope (SEM). Material and methods: Forty dentin discs were divided into 4 groups: group 1, control; group 2, dentin disc treated with nHap toothpaste for one week; group 3, discs treated with diode laser in non-contact mode for 60 seconds; group 4, discs treated with nHap toothpaste for one week, followed by laser application. SEM analysis was performed after acid challenge to the discs. Results: Tubular occlusion was evident in all groups after acid challenge; however, group 4 showed the most occluded tubules, which was the most resistant to acid challenge. Conclusions: Combination of diode laser and toothpaste containing nHap has a greater effect on occluding dentinal tubules rather than each treatment alone.

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“…The polishing procedure was performed according to manufacturer instructions. Polishing was performed for each instrument in one direction for 30 seconds by using low-speed handpiece (16,17) . After polish-ing procedures, the specimens were rinsed with air-water spray for 15 seconds and then ultrasonically cleaned for 1 minute in 100% distilled water and then air dried.…”

Section: Methodsmentioning

confidence: 99%

Effect of different polishing systems on surface roughness and color stability of lithium disilicate ceramics

Makkeyah

Ankily²

2022

Al-Azhar Journal of Dental Science

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Objective: This study aimed to investigate the effect of two polishing systems on the surface roughness and color stability of lithium disilicate ceramic. Materials and Methods: Forty disc-shaped lithium disilicate samples were constructed and cemented into a cavity prepared onto the labial surface of freshly extracted bovine teeth; The samples were divided into four groups (10 samples per group); C: Control, SS: Scaling only, SE: Scaling followed by polishing using Eve Diapro lithium disilicate polishers, SD: Scaling followed by polishing using Diatech ShapeGuard ceramic polishing plus kit. The surface roughness was measured before scaling, after scaling and finally after the polishing procedure. The color parameters were measured before and after the staining procedures using VITA Easyshade Advance 4.0 according to the CIE L*a*b* color order system. Results: Both polishing systems significantly decreased the surface roughness of the disilicate ceramic and was accompanied by a significant decrease in the color change. However, the color change in the polished group was significantly higher than that of the control glazed group. Conclusion:The surface roughness and color stability of lithium disilicate ceramics can be enhanced by recent polishing systems, however, it shows different topography than the glazed ceramic surface.

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Effect of different scaling methods and materials on the enamel surface topography: An in vitro SEM study

Cited by 9 publications

References 38 publications

Effect of Two Different Intraoral Polishing Systems on Surface Roughness, Color Stability, and Bacterial Accumulation of Zirconia-Reinforced Lithium Silicate Ceramic

Effect of Two Different Intraoral Polishing Systems on Surface Roughness, Color Stability, and Bacterial Accumulation of Zirconia-Reinforced Lithium Silicate Ceramic

In vitro comparative SEM analysis of nano-hydroxyapatite toothpaste and diode laser: evaluation of efficacy of dentinal tubular occlusion

Effect of different polishing systems on surface roughness and color stability of lithium disilicate ceramics

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