Is teeth whitening the solution to get shiny pearly whites ?

Hi!
I am a senior high student and I wish to be a model. My boyfriend also feels that I have the looks as well the figure and he is very supportive. I have a photo shoot coming up and I wanna look my best. The only problem is that I have yellow teeth. I always see ads for teeth whitening toothpaste and I even tried using it for two months but it was of no use. Then my boyfriend came to the rescue and told me to get a teeth whitening job done. I am very excited about this but at the same time a little jumpy. I don't know anyone personally who has done this.

Can someone help me out and help me make the right decision? Can you please tell me the pros and cons as well. Any suggestions are welcome.
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