Influence of Carbamide Peroxide on the Flexural Strength of Tooth-colored Restorative Materials: An In Vitro Study at Different Environmental Temperatures

2010 ◽  
Vol 35 (3) ◽  
pp. 300-307 ◽  
Author(s):  
H. Yu ◽  
Q. Li ◽  
Y. Lin ◽  
W. Buchalla ◽  
Y. Wang
Keyword(s):  
Flexural Strength ◽  
Clinical Relevance ◽  
Environmental Temperature ◽  
Dental Materials ◽  
In Vitro Study ◽  
Vitro Study ◽  
Carbamide Peroxide ◽  
Restorative Materials ◽  
Environmental Temperatures

Clinical Relevance The flexural strength of dental materials can be affected by carbamide peroxide. The environmental temperature can be thought to be a factor influencing the bleaching effects on dental materials.

EFFECT OF HUMAN ENAMEL ON WEAR OF THREE TYPES OF INTERIM RESTORATIVE MATERIALS (AN IN-VITRO STUDY)

2017 ◽  
Vol 63 (4) ◽  
pp. 3933-3945
Author(s):  
Khaled Haggag ◽  
Muhammad Abbas ◽  
Zainab EL Sharkawy
Keyword(s):  
In Vitro Study ◽  
Vitro Study ◽  
Human Enamel ◽  
Restorative Materials

scholarly journals The behaviour of composites, glass ionomers and compomers in erosive conditions – in vitro study

2014 ◽  
Vol 60 (5) ◽  
pp. 200-203
Author(s):  
Andreea Borş ◽  
Cristina Molnar-Varlam ◽  
Melinda Székely
Keyword(s):  
Surface Roughness ◽  
Wear Resistance ◽  
Erosive Wear ◽  
In Vitro Study ◽  
Vitro Study ◽  
Initial Surface ◽  
Dental Filling ◽  
Filling Materials ◽  
Restorative Materials

Abstract Objective: The aim of this in vitro study was to evaluate the influence of erosive conditions on the wear resistance of aesthetic direct restorative materials. Methods: Six dental filling materials were tested: two composites (Filtek Z550 and X-tra fil), two compomers (Dyract Extra and Twinky Star) and two glass ionomers (Ketac Molar and Fuji II LC). Twenty disks (10mm×2mm) of each material were prepared (n=120) and kept in artificial saliva at 37˚C for 24 hours. Specimens were cycled in acidic soft drink (Coca-Cola) 5×/day, for 5’, over 30 days. Initial surface roughness ISR (Ra-μm) and final surface roughness FSR were measured using a profilometer. The wear rate was calculated as difference of final minus the initial roughness (ΔSR=FSR-ISR). For statistical analysis t-test and one-way ANOVA test were used by GraphPad Prism version 5.03 statistical software. The level of significance was set at p<0.05. Results: The erosive wear rates (mean±SD, μm) after exposure to acidic beverage were: 0.30±0.03 (Ketac Molar), 0.28±0.04 (Fuji II LC), 0.27±0.00 (Filtek Z550), 0.23±0.01 (X-tra fil), 0.20±0.00 (Twinky Star) and 0.14±0.01 Dyract Extra, respectively. There were significant differences between the tested materials (p<0.05). Conclusions: Dental filling materials had different behaviour under the same erosive condition, however all investigated aesthetic restorative materials showed surface degradation. These findings suggest that erosive wear resistance of tooth coloured restoratives could influence their longevity in intraoral acidic conditions. Acknowledgements: The study was supported by the Internal Research Grant no. 5/30.01.2013 of the University of Medicine and Pharmacy of Tirgu Mureş.

Effect of two fluoride varnishes on the color stability of three resin-based restorative materials: an in vitro study

2015 ◽  
Vol 7 (4) ◽  
pp. 355-360 ◽  
Author(s):  
Raha Tafaroji ◽  
Mina Biria ◽  
Farhad Ameri ◽  
Hassan Torabzadeh ◽  
Pasha Qahari ◽  
...  
Keyword(s):  
In Vitro Study ◽  
Color Stability ◽  
Vitro Study ◽  
Restorative Materials

Marginal, Internal Fit and Microleakage of Zirconia Infrastructures: An In-Vitro Study

2011 ◽  
Vol 36 (1) ◽  
pp. 72-79 ◽  
Author(s):  
L. Korkut ◽  
H. S. Cotert ◽  
H. Kurtulmus
Keyword(s):  
Clinical Relevance ◽  
In Vitro Study ◽  
Manufacturing Technology ◽  
Vitro Study ◽  
Internal Fit ◽  
Fitting Accuracy

Clinical Relevance Fitting accuracy and microleakage dominate prognostic covariates for the long-term durability of crown restorations. The fitting accuracy and microleakage potential of zirconia infrastructures might be influenced by manufacturing technology.

scholarly journals Comparison of flexural strength in three types of denture base resins: An in vitro study

2015 ◽  
Vol 7 (6) ◽  
pp. 461 ◽  
Author(s):  
RArun Jaikumar ◽  
Suma Karthigeyan ◽  
SyedAsharf Ali ◽  
NMadhulika Naidu ◽  
RPradeep Kumar ◽  
...  
Keyword(s):  
Flexural Strength ◽  
In Vitro Study ◽  
Vitro Study ◽  
Denture Base
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