Evaluation of Surface Roughness of Ceramic and Resin Composite Material Used for Conservative Indirect Restorations, after Repolishing by Intraoral Means

Vrochari, Areti; Petropoulou, Aikaterini; Chronopoulos, Vasileios; Polydorou, Olga; Massey, Ward; Hellwig, Elmar

doi:10.1111/jopr.12390

Cited by 23 publications

(29 citation statements)

References 31 publications

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“…In general, higher plaque accumulation and inflammation effects have been reported for resin-based materials and composites than for ceramics, further influenced by the surface roughness [39,40]. Further investigations on the biological impact of new CAD/CAM materials are suggested.…”

Section: Discussionmentioning

confidence: 98%

In vitro performance and fracture resistance of CAD/CAM-fabricated implant supported molar crowns

Rosentritt¹,

Hahnel²,

Engelhardt³

et al. 2016

Clin Oral Invest

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Section: Discussionmentioning

confidence: 98%

In vitro performance and fracture resistance of CAD/CAM-fabricated implant supported molar crowns

Rosentritt¹,

Hahnel²,

Engelhardt³

et al. 2016

Clin Oral Invest

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“…High crystal content of lithium disilicate ceramic and glazing porcelain may have caused an uneven surface even after polishing 35. In case of grinding with diamond burs, the polishing could wear away the irregularies of the roughened surface of lithium disilicate even after the removal of glazed layer 3136. However, roughening with an ultrasonic scaler may be different with the grinding with a fine diamond bur.…”

Section: Discussionmentioning

confidence: 99%

Surface changes of metal alloys and high-strength ceramics after ultrasonic scaling and intraoral polishing

2017

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PURPOSEThis study was to evaluate the effect of repeated ultrasonic scaling and surface polishing with intraoral polishing kits on the surface roughness of three different restorative materials.MATERIALS AND METHODSA total of 15 identical discs were fabricated with three different materials. The ultrasonic scaling was conducted for 20 seconds on the test surfaces. Subsequently, a multi-step polishing with recommended intraoral polishing kit was performed for 30 seconds. The 3D profiler and scanning electron microscopy were used to investigate surface integrity before scaling (pristine), after scaling, and after surface polishing for each material. Non-parametric Friedman and Wilcoxon signed rank sum tests were employed to statistically evaluate surface roughness changes of the pristine, scaled, and polished specimens. The level of significance was set at 0.05.RESULTSSurface roughness values before scaling (pristine), after scaling, and polishing of the metal alloys were 3.02±0.34 µm, 2.44±0.72 µm, and 3.49±0.72 µm, respectively. Surface roughness of lithium disilicate increased from 2.35±1.05 µm (pristine) to 28.54±9.64 µm (scaling), and further increased after polishing (56.66±9.12 µm, P<.05). The zirconia showed the most increase in roughness after scaling (from 1.65±0.42 µm to 101.37±18.75 µm), while its surface roughness decreased after polishing (29.57±18.86 µm, P<.05).CONCLUSIONUltrasonic scaling significantly changed the surface integrities of lithium disilicate and zirconia. Surface polishing with multi-step intraoral kit after repeated scaling was only effective for the zirconia, while it was not for lithium disilicate.

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“…The surface roughness of the restorations can influence dental biofilm retention, staining, gingival inflammation, and secondary caries, thus affecting the clinical performance of restorations. 22,23 Composite resin restorations have evolved rapidly over the past decade. Advances, such as nano and hybrid composite materials, new etching and bonding materials, fast curing methods, and new finishing and polishing materials and techniques have contributed to high-quality composite restorations.…”

Section: Discussionmentioning

confidence: 99%

Impact of Polishing Systems on the Surface Roughness and Microhardness of Nanocomposites

AlFawaz

2017

The Journal of Contemporary Dental Practice

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Aim:The aim of this article is to evaluate the influence of finishing and polishing techniques on the surface roughness and microhardness of two composite resins with two different types of polishing systems. Materials and methods:A total of 30 disk-shaped specimens of nanocomposite Filtek™ Z350 and Ceram-X ® were prepared. They were divided into three groups. The control group (n = 10) received no finishing and polishing. The remaining specimens were divided into two groups, and they received polishing and finishing either with PoGo or Sof-Lex system. After the polishing procedures, average surface roughness (Ra) was assessed with a surface profilometer. The microhardness was determined using a Vickers hardness test. The data were tabulated and analyzed. Results:The smoothest surfaces were noticed with the control group (Mylar strips) in both composite materials tested. The PoGo one-step polishing system showed significantly better surface roughness compared with the Sof-Lex polishing system. The microhardness did not show any significant variations after finishing and polishing. Conclusion: It can be concluded that the use of PoGo® onestep polishing system resulted in smoother surface with both composite materials studied compared with the Sof-Lex system. The finishing and polishing system had little influence on the surface microhardness.Clinical significance: The finishing procedure and polishing system can affect the physical properties and performance of resin composites.

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Evaluation of Surface Roughness of Ceramic and Resin Composite Material Used for Conservative Indirect Restorations, after Repolishing by Intraoral Means

Cited by 23 publications

References 31 publications

In vitro performance and fracture resistance of CAD/CAM-fabricated implant supported molar crowns

In vitro performance and fracture resistance of CAD/CAM-fabricated implant supported molar crowns

Surface changes of metal alloys and high-strength ceramics after ultrasonic scaling and intraoral polishing

Impact of Polishing Systems on the Surface Roughness and Microhardness of Nanocomposites

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