Before whitening, schedule a dental checkup to treat cavities and gum problems; healthy teeth and gums ensure more secure

https://www.mediafire.com/file/3k0h3edyv2e206x/pdf-62479-872.pdf/file

Before whitening, schedule a dental examination to treat cavities and gum problems; healthy teeth and gums make sure more secure, more foreseeable whitening results and comfort.