A one year, randomized clinical trial تجربة عملية عشوائية Safinaz Hussien Fahmy Hassan creator Mai Mamdouh Elsayed Supervisor Mona Ismail Riad Supervisor text theses ua Cairo Safinaz Hussien Fahmy Hassan 2019 monographic eng

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94 P. : charts , photographs ; 25cm The study aim was to evaluate the retention rate of Hydroxyapatite Nanofiber reinforced flowable composite compared to conventional resin-based flowable composite during management of initial non cavitated pits and fissures carious lesion in adult population over a one-year period. A total of 19 volunteer patients ranging in age from 18 to 28 years, diagnosed with at least 2 non-cavitated pit-and-fissure caries in the first and second molars were selected for this randomized split-mouth design trial. A total of 38 sealants, were placed. The teeth were sealed with NovaPro{u2122} Flow Hydroxyapatite Nanofiber reinforced flowable composite in one side, while Filtek{u2122} Z350 XT Flowable conventional resin-based composite on the contralateral. Each restoration was independently evaluated in terms of retention rate at 1, 6, and 12 months. Data were analyzed using Wilcoxon signed-rank test and Friedman{u2019}s test at p < 0.05. The Results showed that NovaPro{u2122} Flow Hydroxyapatite showed complete retention with 100% at 1, 6, month evaluation periods, while Filtek{u2122} Z350 XT retention rates were 100%, 78.9%, respectively, for the same evaluation periods. At the 12-month recall, 2 (10.5%) total losses were observed in subjects treated with NovaPro{u2122} Flow and 2 total losses (15.8%) for Filtek{u2122} Z350 XT. No statistical significant difference in the retention rate in both sealants during different follow-up intervals (P>0.05) Conclusions: The retention rate of both hydroxyapatite nanofibers reinforced flowable resin composite and the conventional nanofilled flowable resin composite after one year of follow up was comparable. Clinical relevance: The clinical survival rate of both tested materials may indicate them as effective approaches for preventing carious lesions in permanent teeth specialized Safinaz Hussien Fahmy Hassan ; Supervised Mona Ismail Riad , Mai Mamdouh Elsayed Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Operative Dentistry Issued also as CD Composite versus conventional resin-based Hydroxyapatite nano-fiber reinforced Initially demineralized pits and fissure http://172.23.153.220/th.pdf http://172.23.153.220/th.pdf EG-GiCUC 200122 20250223032517.0 eng