This never means the promotions, discounts and inexpensive prices are definitely causing bad results, and eventually not all expensive treatments are good treatments. The major factors are materials and experience of the dentist who is taking care of you.
How to check if the dental materials are good enough?
Consulting with your doctor about the details of the treatment you are entering into is strongly advised. In most of the cases the information you provide in consultation will help the dentist know positive and negative effects of the materials on your body.
Consulting with your dentist, you will be able to know the names of the materials which are going to be used and it gives you some information to look up and find out if they are enough qualified or not.
Additionally once you know the prospective qualified dental material, your dentist is committed to use the same.
How to check if the dentist is experienced enough?
The best way to check is to look for reviews, testimonials and comments posted by real people from their real profiles on social media and Google. Most of the dentists have accounts in Yelp, Facebook and Google which all have the feature of receiving comments and reviews from real profiles. You cosmetic dentistry need is most probably someone's experience.
There is no average price for cosmetic dentistry but after choosing the level of service, you won't receive an overpriced treatment if do a detailed research, checking other dentists in same level and giving the same level of quality.