Patient: Hello, Dr. Tan! After periodontal treatment, the doctor said that the teeth on my adjacent side were in bad condition, so a fixed denture was not recommended. So I had my invisible denture restored on October 15. This summer, I had periodontal treatment and 3 invisible denture restorations for my lower front teeth at Tianjin Medical University Dental Hospital. Dr. Tan, will the invisible denture cause gum recession on my missing teeth? I would like to have a fixed denture in the future, but if I have gum recession, will I be unable to have a fixed denture? Tan Jing, Department of Prosthodontics, Peking University Dental Hospital: Some patients are prone to gum recession after using invisible denture. Therefore, I do not recommend the use of invisible denture when the patient has periodontitis. If the gum recession is severe it may not be appropriate to have a fixed denture restoration. If you have any questions, please continue to ask. Thank you!