3D-marginal adaptation versus setting shrinkage in light-cured microhybrid resin composites

Dental Materials : Official Publication of the Academy of Dental Materials
Afrodite KakabouraG Eliades

Abstract

To comparatively evaluate the 3D-marginal adaptation to dentine versus shrinkage strain of two light-cured microhybrid resin composites. Dentine cavities (Ø: 2 mm; h: 1 mm; n=2x4) were prepared, filled with a single layer of EsthetX and Premise resin composites, respectively, without any adhesive cavity pre-treatment, and light-cured for 40s at 750 mW/cm2. All the specimens were imaged by computerized X-ray microtomography. Sequential sections (n=11) at 8.09 pixel size were taken at top, middle and bottom sites of each restoration relative to the axial wall and the interfacial micro-void volume fraction (%VF) was calculated. Shrinkage strain (%S) and strain rate (%SR) of the composites were measured by the bonded-disc method (n=4). The results of %VF per material and restoration site were subjected to statistical analysis by 2-way ANOVA and Tukey's test, whereas the results of %S and %SR were analysed by t-test (p=0.05). Regression analysis was performed to determine correlations between %PF and %S, %S(R). The results of %VF at top (t), middle (m) and bottom (b) restoration sites were (%, mean+/-S.D.): EsthetX 0.84+/-0.11 (t), 0.80+/-0.32 (m), 6.74+/-5.12 (b), Premise 0.99+/-0.24 (t), 0.92+/-0.38 (m), 1.72+/-0.97 (b). The resul...Continue Reading

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Citations

Mar 14, 2012·Clinical Oral Investigations·Pascal Czasch, Nicoleta Ilie
Jul 1, 2010·Journal of Oral Science·Christos RahiotisAfrodite Kakaboura
Apr 1, 2014·Dental Materials : Official Publication of the Academy of Dental Materials·Masao IrieGoro Nishigawa
Jun 9, 2014·Dental Materials : Official Publication of the Academy of Dental Materials·Aline A NevesBart Van Meerbeek
Oct 16, 2010·Journal of Dental Biomechanics·Luis Felipe J SchneiderNick Silikas
Nov 28, 2012·Dental Materials : Official Publication of the Academy of Dental Materials·Amir NazariYasunori Sumi
Aug 9, 2011·Dental Materials : Official Publication of the Academy of Dental Materials·Eitetsu ChoJunji Tagami
Jun 15, 2011·Dental Materials : Official Publication of the Academy of Dental Materials·Turki A BakhshYasunori Sumi
Oct 5, 2010·Dental Materials : Official Publication of the Academy of Dental Materials·Hidekazu TakahashiMarkus Balkenhol
Nov 17, 2009·Dental Materials : Official Publication of the Academy of Dental Materials·Yu-Chih ChiangKarl-Heinz Kunzelmann
Dec 23, 2008·Dental Materials : Official Publication of the Academy of Dental Materials·Jianying LiDavid C Watts
Dec 17, 2008·Dental Materials : Official Publication of the Academy of Dental Materials·Ulrich LohbauerGeorge Eliades
Sep 3, 2008·Dental Materials : Official Publication of the Academy of Dental Materials·Jirun SunSheng Lin-Gibson
Aug 15, 2014·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Ronaldo HirataPaulo G Coelho
May 27, 2014·Clinical Oral Investigations·Nicoleta Ilie, Katharina Stark
May 12, 2016·Clinical Oral Investigations·Maria D GaintantzopoulouSpiros Zinelis
Aug 20, 2016·Odontology·Dalia Kaisarly, Moataz El Gezawi
Oct 23, 2016·Dental Materials : Official Publication of the Academy of Dental Materials·Vesna MileticNenad Mitrovic
Sep 30, 2016·Journal of Esthetic and Restorative Dentistry : Official Publication of the American Academy of Esthetic Dentistry ... [et Al.]·Norah K AlajajiAla Ali
Jul 30, 2015·Journal of Applied Oral Science : Revista FOB·Larissa Marinho AzevedoMaria Teresa Atta
Feb 12, 2014·Restorative Dentistry & Endodontics·Seung-Hoon Han, Sung-Ho Park
Oct 12, 2018·Clinical Oral Investigations·Igor KrižnarAleš Fidler
Dec 8, 2015·Clinical Oral Investigations·S Jacker-GuhrW Geurtsen
May 4, 2017·International Journal of Dentistry·Sheela B AbrahamGeorge Eliades
Dec 8, 2016·Journal of Esthetic and Restorative Dentistry : Official Publication of the American Academy of Esthetic Dentistry ... [et Al.]·Hamad AlgamaiahRonaldo Hirata

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