Closing Black Triangles Following Invisilign Therapy
It has been my experience that black triangles frequently appear near the completion of Invisilign Therapy in the mandibular arch. Patients are frequently thrilled by the results of having undergone Invisilign Therapy but are quite dismayed by the appearance of large black triangles (spaces in the gingival 2/3 between teeth.There are two ways to eliminate the large spaces: place porcelain veneers which requires significant amounts of tooth structure to be removed or perform direct resin bonding with no removal of tooth structure.The vast majority of my patients select the direct resin bonded approach to preserve as much natural tooth structure as possible. These cases are quite labor intensive and require the dentist to close the spaces in three dimensions so that there are no ledges in the restorations. A small Mylar strip is used and small pieces of a Cosmedent's Renamel MICROFILL are added to the tooth to insure the complete elimination of the space.