You need to create pages for specific keywords. You need in-depth treatment pages to show expertise (think E-E-A-T). This is to ensure that you rank for e.g., all Invisalign keywords, all types, all prices and costs, monthly, etc., aftercare, how to clean, etc. You need location pages to rank for Invisalign Express + London, etc. FAQ pages are no longer required, as each page needs its own FAQs. Blog content for longer tail keywords like “do dental implants hurt” is also important.