Effect of Multiple Use and Sterilization of Single-Step Polishing Systems On the Surface Roughness of Resin Composite

Ashour, Marwa; Anwar, Mohammed N; Nour, Khaled

doi:10.21608/edj.2020.39629.1215

Cited by 3 publications

(4 citation statements)

References 18 publications

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“…11 The preference of some professionals for disinfection methods instead of sterilization may be explained by the fact that 71% of respondents reported noticing damages in their instruments after the sterilization cycle, considering this form of processing was indicated because it potentially reduces the performance of polishing points, especially after the third sterilization cycle. 17 Moreover, the infeasibility of discarding polishing points after a single use was identified, as suggested by some manufacturers.…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Their objective is to ensure surface smoothness, 12 increase color stability, 12 reduce pigmentation or staining 12 and secondary caries, and maintain the surface gloss of dental composites, 13 which increases the longevity of restorative clinical procedures in composite resin. 14 The processing of polishing points can be carried out through sterilization 15,16 or disinfection, 17 according to their microbiological potential. 3 T A B L E 1 Description of sociodemographic characteristics, use, and practice of processing polishing points according to the professional field of activity Some studies reported the lack of conformity of professional practices regarding the scientific guidelines for microbiological control.…”

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confidence: 99%

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Knowledge and practice of dentists in processing polishing points: A cross‐sectional study

Vargas

Naves

Paranhos

et al. 2022

J Esthet Restor Dent

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Background Adequately processing polishing points used to polish composite resin restorations is necessary for microbiological control in dentistry, but there is no specific protocol to guide professionals. Therefore, this study aimed to assess the knowledge and practice of dentists in processing these instruments. Methods This cross‐sectional observational study included the application of an online questionnaire via Google Forms and social media promotion. The study evaluated the association of field of activity, time since graduation, age, and sex of professionals with processing practice. The statistical analysis was performed with absolute and relative frequencies and logistic and Poisson regressions at a 5% significance level. Results Overall, 473 questionnaires were analyzed. A rate of 51% of professionals reported using inadequate processing methods, and almost 68% claimed to have good knowledge of the topic. Both regression analyses were significantly associated, showing a direct effect of age and time since graduation on adequate processing practices. Conclusions Although most professionals reported understanding the processing of polishing points, they do not perform it most adequately. Clinical Significance An expressive number of dentists process polishing points improperly. The topic is significant for representing a semi‐critical instrument extensively used in esthetic restorations.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Knowledge and practice of dentists in processing polishing points: A cross‐sectional study

Vargas

Naves

Paranhos

et al. 2022

J Esthet Restor Dent

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“…Finally, all the specimens were stored at room temperature in 100% humidity container for 24 hours till the polishing procedure. (9) The scalpel finished specimens then subdivided into 5 subgroups (n=6) according to the polishing method and with exception of the scalpel finished group without polishing (B1) all specimens were polished according to the manufacturer instructions by using a slow speed hand piece (NSK Dental Low Speed Hand piece FX-25 Set Japan) at 3000 rpm without water coolant in a planar motion and with intermittent light pressure (average 40 g)( 10) which controlled through the whole procedure using a scale . All procedures were done by the same operator for standardization .…”

Section: Polishing Brushmentioning

confidence: 99%

The effect of different polishing methods on the surface roughness of two scalpel finished resin composites

ibrahem

diab

Nour

2023

Egyptian Dental Journal

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Aim: to evaluate the effect of different polishing methods on the surface roughness (Ra) of two scalpel finished resin composites. Materials and Methods:Seventy two resin composite discs were prepared and cured against Mylar strip and divided into two groups (n=36) according to type of resin composite material, Group A1 (nano filled) and Group A2 (nano hybrid). Except for the control group (B0), samples were finished with scalpel blade, then divided into 5 subgroups (n=6) according to the polishing method, subgroup B1 (scalpel finished only and not followed by polishing), subgroup B2 (Sof-Lex Extra Thin Polishing discs), subgroup B3 (Sof-Lex Spiral wheels), subgroup B4 (Sof-Lex polishing strips) and subgroup B5 (polishing paste and brush). Samples were scanned using SEM, scans were analyzed by Gwyddion 2.59 Image Analysis Software to attain surface roughness average Ra data, which were statistically analyzed by two-way ANOVA and Turkey Post Hoc test.Results: There was a significant interaction between the resin composite material and the polishing protocol. Nano hybrid A2 had a significantly higher value than nano filled A1. And between the different finishing and polishing methods, there was a significant difference between different groups. The highest value was found in B1, followed by B4, then B2, B0 and B5, while the lowest value was found in B3. Conclusion:Scalpel is a good finishing tool for resin composite to produce a smoother micro surface ready for polishing. Nano filled resin composite produces a smoother surface than nano hybrid resin composite with different polishing methods.

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Efficacy of one-step and multi-step polishing systems in finishing direct composite restoration: a non-randomised controlled experimental trial

Павлович

Выхристюк

Бузько

et al. 2021

Kuban. nauсh. med. vestnik

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Background. The variety of polishing systems and tools available for finishing direct composite restorations may perplex the dentist.Objectives. An effect evaluation in one- and multi-step composite polishing tools using model specimens of GC Gradia Direct and 3M ESPE Filtek Ultimate restoratives.Methods. The prepared specimens of GC Gradia Direct and 3M ESPE Filtek Ultimate restorative composites were exposed in laboratory to the Kenda Maximus, Dentsply PoGo, Kagayaki RoundFlex, Shofu Super-Snap, Kagayaki Ensmart Pin, EVE Composoft polishing systems and Daiyamondo Kagayaki paste. The polishing systems distinguished by brand, technical and performance characters.Surface microgeometry in all 16 samples was estimated in the Laboratory of Optical Metrology, Institute of Design and Technology for Scientific Instrument Engineering, Novosibirsk, using a MNP-1 light interferometric nanoprofile microscope and at the shared core facilities of the Research and Education Centre “Nanomaterial Diagnostics and Properties” of Kuban State University, Krasnodar, using a JEOL JSM-7500F scanning electron microscope.Results. Optical profilometry and scanning electron microscopy were used to estimate surface roughness in 16 specimens exposed to polishing for one minute. The polishing tools Kenda Maximus, Dentsply PoGo, Kagayaki RoundFlex, Shofu Super-Snap, Kagayaki Ensmart Pin, EVE Composoft, as well as Daiyamondo Kagayaki paste used in instrumental polishing, revealed a varied performance. Optical profilometry exhibited the GC Gradia Direct and Filtek Ultimate specimens to possess the lowest average roughness in two cases: 1) after multi-step polishing with Kagayaki Ensmart Pin tools with Daiyamondo Kagayaki paste (average roughness corresponded to Sa — 0.214 pm in GC Gradia Direct and Sa — 0.248 pm — in Filtek Ultimate), 2) in application of the Kenda Maximus monopolishing tool (roughness values of Sa — 0.211 and Sa — 0.242 pm, respectively). Surface roughness after multi-step machining with EVE Composoft silicone polishers was average Sa — 0.579 and Sa — 0.549 pm in both samples and was reported the highest. Scanning electron microscopy confirmed the optical profilometry estimates.Conclusion. The assay showed that the specimen machining with a sole Kenda Maximus diamond abrasive tool and several Kagayaki Ensmart Pin silicone polishing heads followed by a Daiyamondo Kagayaki diamond abrasive paste application produced very similar surface roughness values, which were graded the lowest with GC Gradia Direct and 3M ESPE Filtek Ultimate composite samples using scanning electron microscopy and optical profilometry.

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Effect of Multiple Use and Sterilization of Single-Step Polishing Systems On the Surface Roughness of Resin Composite

Cited by 3 publications

References 18 publications

Knowledge and practice of dentists in processing polishing points: A cross‐sectional study

Knowledge and practice of dentists in processing polishing points: A cross‐sectional study

The effect of different polishing methods on the surface roughness of two scalpel finished resin composites

Efficacy of one-step and multi-step polishing systems in finishing direct composite restoration: a non-randomised controlled experimental trial

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