scholarly journals Fissure sealant materials: Wear resistance of flowable composite resins

2016 ◽  
Vol 10 (3) ◽  
pp. 194-199 ◽  
Author(s):  
Sohrab Asefi ◽  
Solmaz Eskandarion ◽  
Shadi Hamidiaval
Keyword(s):  
Wear Resistance ◽  
Composite Resins ◽  
Fissure Sealant ◽  
Flowable Composite

Microleakage of microfill and flowable composite resins in class V cavity after load cycling

2002 ◽  
Vol 27 (2) ◽  
pp. 142 ◽  
Author(s):  
Suk-Ho Kang ◽  
Oh-young Kim ◽  
Myung-Hwan Oh ◽  
Byeong-Hoon Cho ◽  
Chung-Moon Um ◽  
...  
Keyword(s):  
Composite Resins ◽  
Class V ◽  
Flowable Composite ◽  
Load Cycling

scholarly journals Microleakage of a Self-Adhesive Flowable Composite, a Self-Adhesive Fissure Sealant and a Conventional Fissure Sealant in Permanent Teeth with/without Saliva Contamination

2019 ◽  
Author(s):  
Zohre Sadat Hosseinipour ◽  
Alireza Heidari ◽  
Mehdi Shahrabi ◽  
Kiana Poorzandpoush
Keyword(s):  
Practical Method ◽  
Permanent Teeth ◽  
Third Molars ◽  
Fissure Sealants ◽  
Fissure Sealant ◽  
Dye Penetration ◽  
Flowable Composite ◽  
Saliva Contamination ◽  
Vertise Flow

Objectives: Application of fissure sealants is a practical method for prevention of occlusal pit and fissure caries. Microleakage is an important factor affecting the success of fissure sealant treatment. This study aimed to assess the microleakage of a self-adhesive flowable composite, a self-adhesive fissure sealant and a conventional fissure sealant in permanent teeth with/without saliva contamination. Materials and Methods: This in vitro, experimental study evaluated 108 extracted human third molars, which were randomly divided into six groups (n=18) of control, Denu-Seal conventional fissure sealant applied on etched enamel with/without saliva contamination, Vertise Flow self-adhesive flowable composite applied on rinsed and dried enamel with/without saliva contamination and Prevent Seal self-adhesive fissure sealant applied on rinsed and dried enamel with/without saliva contamination. Microleakage was assessed using the dye penetration technique and subsequent observation of samples under a stereomicroscope. Data were analyzed using the Kruskal-Wallis and Tukey’s test. Results: Microleakage of the conventional fissure sealant with/without saliva contamination was significantly lower than that of other groups (P<0.05). Conclusion: Microleakage of the conventional fissure sealant is less than that of self-adhesive fissure sealant and self-adhesive composite, irrespective of saliva contamination.

scholarly journals Hardness and modulus of elasticity of primary and permanent teeth after wear against different dental materials

2015 ◽  
Vol 09 (04) ◽  
pp. 587-593 ◽  
Author(s):  
Rodrigo Galo ◽  
Marta Maria Martins Giamatei Contente ◽  
Daniel Galafassi ◽  
Maria Cristina Borsatto
Keyword(s):  
Modulus Of Elasticity ◽  
Artificial Saliva ◽  
Dental Materials ◽  
Permanent Tooth ◽  
Composite Resins ◽  
Permanent Teeth ◽  
Deciduous Teeth ◽  
Fissure Sealant ◽  
Plate Design ◽  
Before And After

ABSTRACT Objectives: The purpose of this study was to determine the Young's modulus and the hardness of deciduous and permanent teeth following wear challenges using different dental materials. Materials and Methods: Wear challenges were performed against four dental materials: A resin-based fissure sealant (Fluoroshield®), a glass ionomer based fissure sealant (Vitremer®), and two microhybrid composite resins (Filtek Z250 and P90®). Using the pin-on-plate design, a deciduous or a permanent tooth was made into a pin (4 mm × 4 mm × 2 mm) working at a 3 N vertical load, 1 Hz frequency, and 900 cycles (15 min) with Fusayama artificial saliva as a lubricant. Before and after the tribological tests, the hardness and elasticity modulus of the tooth samples were measured by creating a nanoindentation at load forces up to 50 mN and 150 mN. All of the results were statistically analyzed using ANOVA and post-hoc Duncan's tests (P < 0.05). Results: No difference in hardness was encountered between deciduous and permanent teeth (P < 0.05) or modulus of elasticity (P < 0.05) before or after the wear challenges for all of the dental materials tested. Conclusions: Wear challenges against the studied dental materials did not alter the properties of permanent or deciduous teeth after the application of a 3 N load.

Post silanization improves bond strength of translucent posts to flowable composite resins

2007 ◽  
Vol 82B (2) ◽  
pp. 320-324 ◽  
Author(s):  
Alberto Albaladejo ◽  
Raquel Osorio ◽  
Federica Papacchini ◽  
Cecilia Goracci ◽  
Manuel Toledano ◽  
...  
Keyword(s):  
Bond Strength ◽  
Composite Resins ◽  
Flowable Composite

scholarly journals Wear resistance of indirect composite resins used for provisional restorations supported by implants

2019 ◽  
Vol 11 (4) ◽  
pp. 232 ◽  
Author(s):  
Akimasa Tsujimoto ◽  
Carlos Jurado ◽  
Jose Villalobos-Tinoco ◽  
Wayne Barkmeier ◽  
Nicholas Fischer ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Composite Resins ◽  
Indirect Composite

Effect of adhesive application on the shear bond strength of flowable composite resins and APC plus to orthodontic molar tubes

2013 ◽  
Vol 27 (7) ◽  
pp. 811-819 ◽  
Author(s):  
Maria Lobato ◽  
Javier Montero ◽  
Laura Ceballos ◽  
Raquel Oyagüe ◽  
Victoria Fuentes ◽  
...  
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Composite Resins ◽  
Flowable Composite ◽  
Adhesive Application

Polymerization Shrinkage and Depth of Cure of Bulk Fill Flowable Composite Resins

2014 ◽  
Vol 39 (4) ◽  
pp. 441-448 ◽  
Author(s):  
D Garcia ◽  
P Yaman ◽  
J Dennison ◽  
GF Neiva
Keyword(s):  
Hardness Test ◽  
Knoop Hardness ◽  
Test Methods ◽  
Composite Resins ◽  
Bottom Surface ◽  
Polymerization Shrinkage ◽  
Depth Of Cure ◽  
Flowable Composite ◽  
Nanohybrid Composite ◽  
Flowable Composites

SUMMARY Objective To evaluate polymerization shrinkage and depth of cure of two bulk fill flowable composites, one nanohybrid composite modified to a flowable consistency, and one standard flowable composite, comparing the scraping method to the Knoop hardness test. Methods Two bulk fill flowable composites, SureFil SDR flow (SSF) (Dentsply) and Venus Bulk Fill (VBF) (Heraeus Kulzer), one standard flowable, Filtek Supreme Ultra Flowable (FSUF) (3M/ESPE) (control), and one regular bulk composite that can be made flowable, SonicFill (SF) (Kerr), were used in this study. For polymerization shrinkage (PS), ten 2-mm samples were made for each composite and cured for 20 seconds and shrinkage was measured with a Kaman linometer. For hardness, ten specimens of each composite were made in a 10 × 10-mm mold and cured for 20 seconds; the bottom surface was scraped according to ISO 4049 specification, and the remaining thickness was measured with a micrometer. Hardness samples were prepared at 2-, 3-, 4-, and 5-mm thick ×14-mm diameter, cured for 20 seconds, and polished. After 24 hours of dry storage, a Knoop indenter was applied at 100 g load for 11 seconds. Three readings were made on the top and bottom of each specimen and averaged for each surface to calculate a Knoop hardness value and a bottom/top hardness ratio. One-way analysis of variance and Tukey tests were used to determine significant differences between thicknesses and between test methods for each material. Results PS values were 3.43 ± 0.51%, 3.57 ± 0.63%, 4.4 ± 0.79%, and 1.76 ± 0.53% for FSUF, SSF, VBF, and SF, respectively. VBF showed significantly greater shrinkage (4.4 ± 0.79%), followed by FSUF (3.43 ± 0.51%) and SSF (3.57 ± 0.63%), which were similar, and SF (1.76 ± 0.53%), which had significantly less shrinkage (p&lt;0.05). Values for the scraping method for depth of cure were significantly greater for SSF and VBF (&gt;5.0 mm), followed by SF (3.46 ± 0.16 mm) and FSU (2.98 ± 0.22 mm). Knoop top hardness values (KHN) were: VBF 21.55 ± 2.39, FSUF 44.62 ± 1.93, SSF 29.17 ± 0.76, and SF 72.56 ± 2.4 at 2 mm and were not significantly different at 3-, 4-, and 5-mm thick within each material. Ratios for bottom/top values (depth of cure) for 2, 3, 4, and 5 mm were: VBF 0.80 ± 0.1, 0.78 ± 0.03, 0.67 ± 0.10, and 0.59 ± 0.07, respectively; SSF 0.74 ± 0.08, 0.72 ± 0.08, 0.69 ± 0.18, and 0.62 ± 0.08, respectively; SF 0.82 ± 0.05, 0.68 ± 0.05, 0.47 ± 0.04, and 0.21 ± 0.02, respectively; and FSUF 0.56 ± 0.08 at 2 mm and 0.40 ± 0.08 at 3 mm. The bottom/top ratio was .80 or less at all depths and decreased below 0.70 at 4-mm depth for VBF and SSF, at 3 mm for SF and at 2 mm for FSUF.

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