Efficacy of discs or wheels finishing and polishing systems versus mylar strips on surface roughness of organically modified ceramics (ormocer) resin-based composite : In-vitro study / Alhussein Adel Desouky ; Supervised Mohamed Adel Ezzat , Rasha Raafat

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Alhussein Adel Desouky

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TextLanguage: English Publication details: Cairo : Alhussein Adel Desouky , 2018Description: 60 P. : charts , photographs ; 25cmOther title:

فعاليه الاقراص او العجلات للانظمه التشطيبيه و الملمعه مقابل شرائط مايلر على خشونه سطح الكمبوزيت المعدل عضويا بالسيراميك : دراسه معمليه [Added title page title]

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Dissertation note: Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Operative Dentistry Summary: This study was carried out to evaluate the effect of two finishing and polishing systems (discs and wheels) on surface roughness of organically modified ceramics (ormocer) based resin composite restoration as compared to curing under Mylar strips after pH cycle application for two weeks. A total number of 45 discs specimen of ormocer resin-based composite used in this study, specimens where divided into three groups (control, discs and wheels), Specimens where finished and polished using either wheel or disc system (except control group), surface roughness measurement were performed using digital microscope for the three groups firstly after finishing and polishing procedures, then secondly after subjected to pH cycle protocol for two weeks consists of 6 hours of demineralized solution and 18 hours of remineralized solution, One way ANOVA used to determine the effect of tested finishing and polishing materials on surface roughness of ormocer resin composite, Significant level was set at p<0.05. The results revealed that both types of finishing and polishing (sofl-lex discs and wheels) materials showed non-significant differences when compared to the control group (Mylar strips), however the group finished and polished using sof-lex discs had the smoothest surface among other groups. Under the limitations of the current study, it could be concluded that: Using resin composite material with high mechanical properties maintains surface polish for a long time. Among the finishing and polishing systems tested, Mylar strips can be considered easiest, simplest and efficient method of finishing and polishing. The composite resin restoration underwent mild surface roughness following the pH regimen

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Holdings
Item type	Current library	Home library	Call number	Copy number	Status	Date due	Barcode
Thesis	قاعة الرسائل الجامعية - الدور الاول	المكتبة المركزبة الجديدة - جامعة القاهرة	Cai01.09.03.M.Sc.2018.Al.E (Browse shelf(Opens below))		Not for loan		01010110076808000
CD - Rom	مخـــزن الرســائل الجـــامعية - البدروم	المكتبة المركزبة الجديدة - جامعة القاهرة	Cai01.09.03.M.Sc.2018.Al.E (Browse shelf(Opens below))	76808.CD	Not for loan		01020110076808000

Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Operative Dentistry

This study was carried out to evaluate the effect of two finishing and polishing systems (discs and wheels) on surface roughness of organically modified ceramics (ormocer) based resin composite restoration as compared to curing under Mylar strips after pH cycle application for two weeks. A total number of 45 discs specimen of ormocer resin-based composite used in this study, specimens where divided into three groups (control, discs and wheels), Specimens where finished and polished using either wheel or disc system (except control group), surface roughness measurement were performed using digital microscope for the three groups firstly after finishing and polishing procedures, then secondly after subjected to pH cycle protocol for two weeks consists of 6 hours of demineralized solution and 18 hours of remineralized solution, One way ANOVA used to determine the effect of tested finishing and polishing materials on surface roughness of ormocer resin composite, Significant level was set at p<0.05. The results revealed that both types of finishing and polishing (sofl-lex discs and wheels) materials showed non-significant differences when compared to the control group (Mylar strips), however the group finished and polished using sof-lex discs had the smoothest surface among other groups. Under the limitations of the current study, it could be concluded that: Using resin composite material with high mechanical properties maintains surface polish for a long time. Among the finishing and polishing systems tested, Mylar strips can be considered easiest, simplest and efficient method of finishing and polishing. The composite resin restoration underwent mild surface roughness following the pH regimen

Issued also as CD

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