Abstract:
:The aim of the present work was to investigate the effect of the different organically modified nanoclays on clinically significant properties of new synthesized dental pit and fissure nanocomposite sealants. Their morphological characteristics were examined by means of X-ray diffraction (XRD) analysis and scanning electron microscopy (SEM). A universal testing machine was used to conduct the flexural and compression tests. Surface roughness measurements were taken by using a 3D-optical profilometer. Color changes after aging in black tea were determined by recording UV-visible spectra. XRD plots depicted possible structures governed by intercalated regions along with some "tactoids" nanoparticles. SEM images revealed a better dispersion for the methacrylated clay nanofiller. Flexural modulus and microhardness were found to be higher for sealants reinforced with such polymerizable nanoclays. These specific nanocomposites yielded smoother surfaces, as well as clinically accepted color changes even after 1 week aging in black tea.
journal_name
Dent Mater Jjournal_title
Dental materials journalauthors
Nikolaidis A,Vouzara T,Koulaouzidou Edoi
10.4012/dmj.2019-214subject
Has Abstractpub_date
2020-09-29 00:00:00pages
773-783issue
5eissn
0287-4547issn
1881-1361journal_volume
39pub_type
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