Tunneling Knife by Huerzeler, Wachtel and Zuhr
Both tunneling knives have spoon-shaped working-ends. The whole working-end features an angle which facilitates the preparation in convex areas. The new development of the tunneling instruments reduces the risk of a perforation in case of a buccal splitflap development. Furthermore the usage of the tunneling instruments ensures an improved wound healing which in turn can lead to an improved esthetic result.