Computer‐supported implant planning and guided surgery: a narrative review

Abstract

The digital technology rapidly evolves and new developments have resulted in further improvement of the accuracy. Future developments include the reduction of the number of steps needed from the preoperative examination of the patient to the actual execution of the guided surgery. The latter will become easier with the implementation of optical scans and 3D-printing.

Accuracy Evaluation of a Stereolithographic Surgical Template for Dental Implant Insertion Using 3D Superimposition Protocol

“…The performance of computer-guided implant systems and their accuracy relies on all the cumulative and interactive errors involved, from examination, impression, CBCT data acquisition, and guide manufacturing to the surgical procedure and improvements of templates design should be performed to reduce inaccuracy [12]. …”

“…The most notable error with guided surgery was expected to occur in vertical direction (too superficial implant position) due to the presence of debris in the implant cavity [12] or to the blockage of the implant holders in the sleeves of the guide during surgery [32]. However, the use of a guide sleeve incorporated in the design with no need for additional metal sleeves and also the presence of the additional buccal window allowed debris removal during drilling and irrigation results in a reduced vertical deviation 0.50 (±0.38) when compared to Farley and coworkers findings (1.24 mm ± 0.78 mm).…”

“…The sleeve incorporated stereolithographic surgical template for flapless implant insertion is designed to lower mechanical tolerance of surgical instruments [19], considered by Vercruyssen and coworkers [12] a source of error occurring during execution phase, leading to improper implant positioning.…”

“…The protocol of static surgical guidance involves several steps from data collection, to planning, surgical template manufacturing, and effective surgical placement of the implants [12]. Errors can occur at each individual step and the final inaccuracy is the sum of all mistakes.…”

Postextraction Computer-Guided Implant Surgery in Partially Edentate Patients With Metal Restorations: A Case Report

“…Computer-guided implant surgery makes possible the correct positioning of implants despite the presence of anatomically sensitive structures like maxillary sinus, mandibular canal or mental foramen (7,8). Besides, another advantage is the @ C I C E d i z i o n i I n t e r n a z i o n a l i possibility to avoid a more invasive surgery access (9). Being the digital implant planning prosthetically-driven by the wax-up, a superior aesthetic and control of the masticatory load is achievable (10,11).…”