When performed correctly, tunnel grafting is by far the safest and most predictable method to do onlay augmentations on the mandibular ridge. This is made true by the fact that no incision lines are in contact with any augmentation material. However, the technical challenges to the implant surgeon have frequently been severe. These were highlighted by the difficulty of tissue elevation on the lingual and retro-molar pad areas. The combination of the anatomically adjustable “Tunnel Graft Instruments”, and the “Tunnel Graft Retractors” now permit the surgeon to master this procedure with added confidence and success.
