In Group A, which was the control group, the teeth were etched and bonded, while those in Group B were bleached
, etched and bonded.
The northern part of the reef, which was worst-affected in 2016, bleached
"much less" in 2017 even though some of the reefs underwent similar levels of heat stress in both summers.
In the control visits, when the non-vital tooth has been bleached
, the steps followed are as previously described for the walking bleach technique.
And even on bleached
reefs, there are some colonies that do not bleach.
Practise printing on flannel first, so you get the hang of how drippy the bleach is and what colour the towel will turn when bleached
Hannig et al30 used the knoop hardness test and reported a significant decrease in both superficial and deep surface hardness of bleached
Conclusion: There were significant surface alterations found in the bleached
specimens as compared to control group.
Concerns regarding bleaching efficacy, the development of off-flavors and changes in functionality are issues, as these have been reported for whey bleached
with hydrogen peroxide and benzoyl peroxide.
* GIV--endodontically treated teeth bleached
and restored with composite resin;
The natural and original dark skin is seen as more realistic and stable while the bleached
skin is idealistic (the skin bleacher has a colonial mentality of ideal skin).
APPLICATION: By partially replacing NaOH with Mg(OH)[.sub.2], papermakers may be able to decrease oxalate-related scaling without sacrificing brightness in bleached