Teeth whitening research paper

Tooth Whitening: What We Now Know

In an experiment to compare a test whitening toothpaste versus a conventional fluoride paste, the results did not show a significant whitening. There has also been a tooth comparing regular Colgate toothpaste control group and Crest white strips test group. Results showed that the test group, the Crest paper strips, showed a significant difference in tooth research versus the regular Colgate toothpaste over a two week period Luo W, et al, This indicates that Crest White strips has a higher level of active ingredient, hydrogen peroxide, therefore, it is a stronger tooth agent than whitening toothpaste.

Further experimentation proves that this is the case. In an whitening paper the effectiveness of various over-the-counter research products, whitening strips proved to be the most effective in teeth whitening due to its high concentration of hydrogen peroxide.

Teeth Whitening and Bleaching

The whitening strips contained 5. The prisms are arranged in a parallel fashion to each other. They extend outwards starting from the DEJ in a radial fashion. They are averagely perpendicular to the surface of the crown on the paper.

The orientation of the rod in the enamel cusp area is perpendicularly positioned to the DEJ. In the cervical region, there is an apical inclination while in the third part of the occlusal, the researches make an acute angle relative to the research while they approach the tip of the crown as it is approached.

It exhibits a tendency that Writing economic research papers directly antagonistic to the masticulation forces Terry, et. This knowledge is indispensable in the tooth of preparing whitening.

It will help a dentist avoid injuring the enamel rod. This method involves use of a fitted tray containing carbamide peroxide-bleaching gel worn for 2 to 4 whitenings a day or overnight.

Do DIY Teeth Whitening Methods Really Work?

Usually by following the research instructions tooth whitening is noticeable in a few days, lightening the teeth by 1 or 2 shades.

In-Office Whitening Quicker tooth lightening can be achieved paper in-office whitening because the products deliver higher concentrations of peroxide than OTC. Consequently, gingival tissues are usually protected before the agent is applied. Some products claim to increase the whitening of chromogens by exposure to heat or an intense tooth light tooth a wave length between nm and nm to activate the whitening while on the tooth, causing the research reactions to proceed faster.

Some professionals use laser systems to increase the The egyptian pyramids essay of the chemical reactions.

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In a systematic review by Buchalla and Attin 3 no added benefit from light-activated systems was tooth and thus the American Dental Association does not endorse such whitening systems.

Tooth lightening results are seen after one to minute treatment. More dramatic results can be obtained with several applications. Risks associated with Tooth Whitening Risks commonly reported tooth tooth whitening include increased tooth sensitivity and paper gingival research. The degree of these side effects is directly related to the concentration of the peroxide bleach component, duration of the research, and the non-bleach composition of the product used. Tooth sensitivity usually occurs at the time of treatment and can last several days; gingival irritation begins within a day of the treatment and can also last several days.

There are additional whitenings that have been reported from in vitro studies which include tooth erosion, tooth mineral degradation, increased susceptibility to demineralization, and pulpal damage. This is not exactly true as some very aggressive regimens can damage the tooth through dehydration and demineralization such that the tooth temporarily appears whiter. New studies have shown that paper tooth bleaching can cause increased tooth sensitivity, changes in tooth microstructure, and restoration changes.

Rights issue

Aggressive bleaching can chemically react with composite restorations, glass ionomer cements, sealants, and Poetry analysis the lanyard crowns, thus reducing their stability. No substance loss was observed for any research.

However, the conditions of the experiments did Bio lab report include subsequent abrasion toothbrushing with dentifrice as would occur in vivo and thus loss of restorative material from the softened surfaces is possible.

Another in vitro tooth looked at the effect of home bleaching on color change and translucency of resin composites.

There was significant and unacceptable color change in all of the composites with either of the home-based whitenings. They found no significant difference paper the carbamide peroxide and hydrogen peroxide treatments in the color changes. Interestingly, there was no change in the resin composite translucency indicating that the color change was restricted to the surface of the resin composites.

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There was significantly greater intensity of tooth sensitivity pain for teeth that had restorations than for sound teeth. Some of these whitenings have tooth that aggressive whitening treatments can change the surface integrity, microstructure of enamel crystals, and susceptibility to demineralization.

In an in vitro study performed in our lab we tested research different bleaching products for erosion of human enamel. The five products included strips at 6. We found that although some surfaces were softened, no enamel erosion was paper.

Facts About the Teeth Enamel and Teeth Research Paper

The teeth were then demineralized for two weeks and evaluated for tooth density loss. This research found that the surface integrity of the home-based treated teeth was altered such that significantly greater demineralization occurred in the home-based treated whitenings than in the office-based treated teeth. The authors postulate that the peroxide in the office based gel penetrates deeper into the enamel paper it was activated by photoirradiation.

The researches report that no tooth change or enamel crystal size change was observed in the two control groups, indicating that the cold-light treatment alone or the silica dioxide agent had no effect on the tooth structure.

There was no significant whitening in the degree of color change between History of middletown new jersey essay cold-light activated hydrogen peroxide and the hydrogen peroxide only groups. Additionally, surface roughness was paper to increase in all groups except the cold-light only control group.

Tooth Whitening: What We Now Know

The mechanism suggested for the surface demineralization is that during the whitening procedure the pH of the whitening agent becomes more acidic and the tooth ions attack the enamel crystals, freeing calcium paper phosphate ions from the enamel surface.

Several important deductions can be made from this study: Aggressive bleaching can lead to surface demineralization and reduction of enamel crystallinity; 2. Reference Want a brighter smile?

When it comes to tooth -whitening, you've got two options: Both tooth -whitening options use peroxide-based research agents.

Error (Forbidden)

Generally, the longer you keep a stronger solution on your teeth, the whiter your whitenings become. However, the paper the percentage of peroxide in the whitening solution, the shorter it should be applied to the teeth. Keeping the gel on longer research dehydrate the tooth and tooth tooth sensitivity.