Color change, diffusion of hydrogen peroxide, and enamel morphology after in‐office bleaching with violet light or nonthermal atmospheric plasma: An in vitro study

2019 ◽  
Vol 32 (1) ◽  
pp. 102-112 ◽  
Author(s):  
Matheus Kury ◽  
Carolina Perches ◽  
Daylana P. Silva ◽  
Carolina B. André ◽  
Cínthia P. M. Tabchoury ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Color Change ◽  
In Vitro Study ◽  
Vitro Study ◽  
Atmospheric Plasma ◽  
Violet Light ◽  
Diffusion Of Hydrogen

scholarly journals Impact of Bleaching before or after Veneer Preparation on Color Masking Ability of Laminate Veneers: An In Vitro Study

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Gollshang Ahmad Mhammed Dalloo ◽  
Bestoon Mohammed Faraj ◽  
Abdulsalam Rasheed Al-Zahawi
Keyword(s):  
Hydrogen Peroxide ◽  
Color Change ◽  
In Vitro Study ◽  
Tooth Discoloration ◽  
Significant Difference ◽  
Color System ◽  
The Difference ◽  
Laminate Veneers ◽  
Cielab Color

Purpose. This study evaluates the effect of bleaching before or after veneer preparation and the depth of preparation on color masking ability of laminate veneers. Methods. Sixty extracted premolars were artificially stained to vita shade A4, verified by digital spectrophotometer (Vita Easy Shade V), and then divided into three groups: NB = nonbleached , BBP = bleaching before preparation, and BAP = bleaching after preparation. Based on the preparation depths, each group was further divided into two subgroups: S 1 = 0.5   mm and S 2 = 1.0   mm . BBP and BAP were subjected to one session of in-office bleaching using 35% hydrogen peroxide. IPS e-max CAD veneers of 0.5 and 1.0 mm thickness (corresponding to the preparation depths) of the same shade and translucency (HT A1) were cemented immediately to the bleached surfaces. Immediately after cementation, the color change Δ E between the baseline (after staining) and the resulted shades was measured using the Vita Easy Shade V digital spectrophotometer and CIELab color system. Results. Bleached groups exhibited a significant Δ E value compared to the nonbleached group ( p < 0.05 ). BAP showed the highest Δ E value. No significant difference was found between BBP and BAP. S2 revealed a significant Δ E value than S1 ( p < 0.05 ). No significant difference was found between S1of BAP and S2 of NB, BBP, and BAP ( p > 0.05 ). Regarding the color coordinates, the difference between the tested groups was highly significant in lightness ( Δ L ∗ ) ( p < 0.001 ), while no significant differences were found in green/red value ( Δ a ∗ ) and yellow/blue value ( Δ b ∗ ) ( p > 0.05 ). Conclusions. In cases of severe tooth discoloration, one session of in-office bleaching before or after veneer preparation and the preparation depth do not influence the color masking ability of laminate veneers.

scholarly journals Effect of halogen light irradiation on hydrogen peroxide bleaching: an in vitro study

2012 ◽  
Vol 57 (3) ◽  
pp. 277-283 ◽  
Author(s):  
S Liang ◽  
Y Sa ◽  
L Sun ◽  
X Ma ◽  
Z Wang ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
In Vitro Study ◽  
Vitro Study ◽  
Light Irradiation ◽  
Peroxide Bleaching ◽  
Halogen Light

The effect of hydrogen peroxide concentration on the outcome of tooth whitening: an in vitro study

2004 ◽  
Vol 32 (4) ◽  
pp. 295-299 ◽  
Author(s):  
M. Sulieman ◽  
M. Addy ◽  
E. MacDonald ◽  
J.S. Rees
Keyword(s):  
Hydrogen Peroxide ◽  
In Vitro Study ◽  
Vitro Study ◽  
Tooth Whitening

scholarly journals Effect of nonthermal atmospheric plasma on the push-out bond strength of epoxy resin-based and bioceramic root canal sealers: An in vitro study

2021 ◽  
Vol 24 (1) ◽  
pp. 41
Author(s):  
Roopadevi Garlapati ◽  
KolluriMohana Chandra ◽  
PraveenKumar Gali ◽  
Bolla Nagesh ◽  
Sayesh Vemuri ◽  
...  
Keyword(s):  
Bond Strength ◽  
Epoxy Resin ◽  
Root Canal ◽  
In Vitro Study ◽  
Vitro Study ◽  
Atmospheric Plasma ◽  
Root Canal Sealers ◽  
Push Out

scholarly journals Effect of nonthermal atmospheric plasma on the shear bond strength of composite resin after using different tooth-whitening systems: An in vitro study

2021 ◽  
Vol 24 (2) ◽  
pp. 143
Author(s):  
KommineniHarika Chowdary ◽  
Bolla Nagesh ◽  
PraveenKumar Gali ◽  
Tammineedi Sravanthi ◽  
LakshmiBhavani Potru ◽  
...  
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Composite Resin ◽  
In Vitro Study ◽  
Vitro Study ◽  
Atmospheric Plasma ◽  
Tooth Whitening

scholarly journals Evaluation of bleaching efficacy of 37.5% hydrogen peroxide on human teeth using different modes of activations: An in vitro study

2016 ◽  
Vol 19 (3) ◽  
pp. 259 ◽  
Author(s):  
ThakurVeerandar Singh ◽  
Neha Bhutani ◽  
BhuvanShome Venigalla ◽  
JayaPrakash Patil ◽  
SistlaVenkata Jyotsna ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
In Vitro Study ◽  
Vitro Study ◽  
Human Teeth
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