Teeth whitening is a popular cosmetic dentistry technique that utilizes oxidizing agents like hydrogen peroxide to lighten the shade of adult teeth. There are two primary methods: professional dental clinic bleaching and at-home bleaching, each with varying effectiveness and duration of results. Benefits include improved cosmetic appearance and an enhanced smile, while drawbacks include limited effectiveness on specific dental conditions and inconsistent results with at-home methods.

1. Teeth Whitening

2. INTRODUCTION
Teeth whitening or bleaching is amongst the most common techniques in
dentistry, especially in field of cosmetic dentistry.
Let us know in more detail about the technique and its benefits.

3. PROCESS OF TEETH WHITENING
Teeth whitening/bleaching makes use of various oxidizing agents like hydrogen
peroxide or carbamide peroxide that lightens the dark shade of adult teeth.
The process penetrates these porosities in the rod like crystal structure of
enamel that helps to oxidize the stain deposits.
After the enamel, the dentin layer underneath is also bleached after a certain
period of time.
The whitening effect lasts for certain months to a year, depending upon the
factors such as consumption of tea, coffee along with cigarette smoking.

4. METHODS OF TEETH WHITENING
Dental Clinic Bleaching: This technique is performed by dentists by
applying high concentration of oxidizing agents with quick results and
precautionary measures.
At Home Bleaching: This is performed at home by the teeth bearer. It
involves a thin mouth-guard or strip that holds a low concentration of
oxidizing agent next to the teeth for as long as several hours a day for a
period of 5 to 14 days.

5. BENEFITS OF TEETH WHITENING
Dramatic improvements in cosmetic appearance of stained teeth.
Best techniques used by dentists with better and long lasting
results.
Regained attractive feature of smile through whiter teeth.

6. DISADVANTAGES OF TEETH WHITENING
Least effective on teeth having white spots, decay and infected
gums.
Light activated bleaching can give varied results as per its efficiency.
At home bleaching may offer varied results and non-uniform
whitening.

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