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Trend Report

Guided Surgery

Part 1: Conventional Surgical Stent

Dental implants have become a treatment option widely used for the replacement of lost teeth. Dentists have placed implants where the greatest amount of bone is present, with little regard for where the final definitive restoration would be placed. In most cases, the placement of the implant has not been as accurate as intended. Even a minor variation in comparison to the ideal placement causes difficulties in the fabrication of the final prostheses. Failures arise due to a lack of consideration of the super structure during pre-surgical planning. Accurate placement is required to achieve the best functional and esthetic result. Since the oral cavity is a relatively restricted space, a high degree of accuracy in placement of the implant is very important for the success of the prostheses. This can be achieved by means of a surgical guide which provides adequate information regarding implant placement and fits onto the existing dentition or on to the edentulous span at the time of surgery. This article evaluates the conventionally used radiographic templates with their fabrication, advantages, and disadvantages in Part I and gives a review of the computer-aided surgical guide in Part II.