scholarly journals In Vitro Study of the Structure and Adhesive Interface in Direct Restorations with Commercial Nanocomposite Materials

2019 ◽  
Vol 56 (1) ◽  
pp. 277-281
Author(s):  
Adrian Almasi ◽  
Liana Todor ◽  
Cristian Adrian Ratiu ◽  
Ramona Amina Popovici ◽  
Codruta Victoria Tigmeanu ◽  
...  
Keyword(s):  
Structural Characterization ◽  
In Vitro Study ◽  
Nanocomposite Materials ◽  
Vitro Study ◽  
Scanning Microscopy ◽  
Marginal Adaptation ◽  
Adhesive Systems ◽  
Adhesive Interface

The purpose of this study was: Structural characterization of two commercial nanocomposite materials (Premise ™/Kerr Corp and Tetric EvoCeram�/ Ivoclar-Vivadent); Evaluation of the marginal adaptation and adhesive interface achieved with two commercial adhesive systems (Optibond SoloPlus ™/Kerr Corp and G-Bond ™/GC). Investigation was done using electronic scanning microscopy (SEM).

scholarly journals In vitro Study of the Structure and Adhesive Interface in Direct Restorations with Experimental Nanocomposite Materials and Adhesive Systems

2018 ◽  
Vol 55 (4) ◽  
pp. 620-625
Author(s):  
Anca Porumb ◽  
Adrian Almasi ◽  
Liana Todor ◽  
Cristian Adrian Ratiu ◽  
Gabriela Ciavoi ◽  
...  
Keyword(s):  
Clinical Importance ◽  
In Vitro Study ◽  
Adhesive System ◽  
Nanocomposite Materials ◽  
Variable Number ◽  
Adhesive Systems ◽  
Adhesive Interface ◽  
Chemistry Research ◽  
Self Etch

Using nanotechnology to produce composite materials it has been possible to obtain materials with similar or better mechanical properties than previous generation of microhybrids, and with exceptional aesthetics and chandelier due to the particularities of nanomaterials. At the same time, the improvement of adhesive techniques to enamel and dentin allowed the expansion of the area of direct composite restorations with a better prognostic over time.Eight carie-free molars were used and each of them was prepared with two class II cavities, which were filled using the C13 and C20 nanocomposites and the A1 and A2 experimental adhesive systems prepared at the Raluca Ripan Chemistry Research Institute. The teeth were divided into four groups of two teeth each, depending on the adhesive system and the composite material used. Scanning electron microscopy images (SEM) have described the adhesive interface and structure characteristics for the two nanocomposite materials and for the two studied adhesive systems.The studied nanocomposites have a variable number of porosities and air bubbles, with a clinical importance which is yet hard to establish.The experimental adhesives used produce a good interface and infiltration of the smear-layer but have not been visualized inside the dentinal canals.In vitro studies are necessary to evaluate the durability of adhesion in the case of self-etch adhesives in one or two steps.

scholarly journals Evaluation of bond strength of splinting materials to the teeth using three adhesive systems-an in vitro study

2015 ◽  
Vol 2 (2) ◽  
pp. 94 ◽  
Author(s):  
TinaPuthen Purayil ◽  
Arumugam Chakravarthy ◽  
Kishore Ginjupalli ◽  
NidamburVasudeva Ballal
Keyword(s):  
Bond Strength ◽  
In Vitro Study ◽  
Vitro Study ◽  
Adhesive Systems

scholarly journals Comparative evaluation of microtensile bond strength of different solvent based one step and two step adhesive systems to dentin. An in-vitro study

2013 ◽  
Vol 16 (4) ◽  
pp. 371
Author(s):  
Pavithra Somasundaram ◽  
Roshan Uthappa ◽  
Vinay Shivgange ◽  
GB Shivamurthy ◽  
Vasundhara Shivanna
Keyword(s):  
Bond Strength ◽  
Comparative Evaluation ◽  
In Vitro Study ◽  
Vitro Study ◽  
Adhesive Systems ◽  
Microtensile Bond Strength ◽  
One Step

scholarly journals Influence of salivary contamination on the dentin bond strength of two different seventh generation adhesive systems: In vitro study

2015 ◽  
Vol 18 (6) ◽  
pp. 467
Author(s):  
TaranjeetKaur Bhatia ◽  
Hemant Asrani ◽  
Harpreet Banga ◽  
Aditi Jain ◽  
SudhirS Rawlani
Keyword(s):  
Bond Strength ◽  
In Vitro Study ◽  
Vitro Study ◽  
Adhesive Systems

Synthesis and characterization of novel PUFA esters exhibiting potential anticancer activities: An in vitro study

2011 ◽  
Vol 46 (10) ◽  
pp. 4878-4886 ◽  
Author(s):  
Azmat Ali Khan ◽  
Mahboob Alam ◽  
Saba Tufail ◽  
Jamal Mustafa ◽  
Mohammad Owais
Keyword(s):  
In Vitro Study ◽  
Vitro Study ◽  
Synthesis And Characterization ◽  
Anticancer Activities

scholarly journals To Evaluate the Effect of Water Temperature and Duration of Immersion on the Marginal Accuracy and Microhardness of Provisional Restoration: An In Vitro Study

2020 ◽  
Vol 8 (03) ◽  
pp. 115-126
Author(s):  
Sanjan Verma ◽  
Tarun Kalra ◽  
Manjit Kumar ◽  
Ajay Bansal ◽  
Ritu Batra ◽  
...  
Keyword(s):  
Water Temperature ◽  
In Vitro Study ◽  
Vitro Study ◽  
Marginal Adaptation ◽  
Surface Microhardness ◽  
Effect Of Water ◽  
Fixed Prosthodontics ◽  
Restorative Materials ◽  
Provisional Restoration

Abstract Introduction Provisional restoration is a critical component of fixed prosthodontics treatment, which must satisfy many inter-relative factors such as biological, mechanical, and esthetic. These restorations should have accurate marginal adaptation and optimum strength to maintain functional demands. The present “in vitro” study was conducted to evaluate the effect of water temperature and duration of immersion, on the marginal adaptation and microhardness of four different commercially available provisional restorative materials. Materials and Methods The 240 specimens were then seated on the stainless-steel die which simulated the prepared tooth, and evaluated for the marginal gap for four different provisional restorative materials and divided into four different groups A, B, C, and D. Each group was further divided into six subgroups according to temperature of water and time of immersion. In each group the samples were immersed in water at 20, 30, and 40 degrees, respectively for 5 and 10-minutes duration. Four different temporary restorative materials for crown fabrication were loaded each time to make temporary crowns. Results Each sample was placed under travelling stereoscopic microscope (20× magnification) and photographed. Results for each surface were obtained, and the average of three surfaces was calculated. Knoop hardness was measured using a microhardness tester. The study was subjected to statistical analysis, to know the statistical significance, of the effect of difference in time and temperature changes at the time of final polymerization on surface microhardness and marginal integrity of four different provisional restorative materials. Discussion The mean marginal discrepancies of bis-GMA (group B) at 20, 30, and 40°C for 5 and 10 minutes in water were smaller than the results of other groups. Microhardness evaluation showed that the poly ethyl methacrylate (PEMA) type resin exhibited significantly lower microhardness than the bis-acryl resin composites (Protemp 4 and Systemp.c&b) at both time and temperature intervals. Conclusion The bis-acryl composites material has the least marginal discrepancy in comparison with PEMA and polymethyl methacrylate (PMMA). The bis-acryl composites materials exhibit superior surface microhardness followed by PEMA and PMMA.

Effects of different abutment material and surgical insertion torque on the marginal adaptation of an internal conical interface: An in vitro study

2014 ◽  
Vol 58 (4) ◽  
pp. 230-236 ◽  
Author(s):  
Davide Farronato ◽  
Stefano Pieroni ◽  
Francesco Guido Mangano ◽  
Francesco Briguglio ◽  
Dino Re
Keyword(s):  
In Vitro Study ◽  
Vitro Study ◽  
Marginal Adaptation ◽  
Insertion Torque
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