Successful computer-guided implant

DENTAL implants, as introduced in the 1980s, required twosurgeries and the use of a temporary denture for at least sixmonths. In the 1990s, this restorative procedure was reduced to a single, albeit daylong, surgical process known as immediate loading.The procedure was further enhanced by the use of computer-guidedtechniques.

The first clinical use of computer-guided techniques combinedwith immediate loading occurred in 2002. Dental implants can now be precisely placed in an hour or less. Dentists can use virtual planning to create a surgical template and fabricate a prosthesis for immediate placement. The patient experiences minimal postoperative pain andswelling with this less invasive procedure.

However, this technology can be limited due to local anatomicalfactors. To place the implant in the best position, the patient must have suitable bone at the desired implant site. Proper seating of computerguided titanium drilling sleeves can be difficult to achieve if the patient’s crestal bone is too high or narrow. Previously, this clinical situation required opening a flap and reducing bone before placing the dental implants.

A case study* in the current issue of the Journal of Oral Implantology, however, achieved implantation without cutting a flap or reducing the bone height, whilst still permitting immediate placement of the already fabricated prosthesis.

The current case study reports on the use of computer-guided implantation in a 54-year-old patient. The patient had a very narrow ridge of bone, making drilling for implant placement difficult.

 The added precision of computer guidance to oral implant surgery provides another leap forward in restorative dentistry. Innovative modifications of software and instrumentation are further advancing dental implant success in patients lacking adequate bone. New techniquesreduce surgery time and expedite postoperative healing.

For the presented case, deeper implant site preparation was necessary for implant seating and placement of the traditional computer generated surgical guide was difficult and therefore had to be eliminated. In the virtual planning phase, a different implant length was used to reposition the guide sleeves. Drilling sequences were changed, using a starting drill that would allow deeper penetration. Osteotomes, instruments to prepare the bone, were incorporated, as was the use of an alternative implant seating mouZoom Lebron XIII 13