The Differences Between One and Two-Stage Dental Implants
posted: May 08, 2011.
The best method for permanently replacing a missing tooth is with a dental implant. But did you know that there are two main techniques for placing implants? Implants can be placed either using a one stage or a two stage surgical technique, and as their names suggests, one is performed in one step while the other requires a second surgery.
With a one-stage procedure, a healing abutment is placed at the time of surgery. An abutment is a connector that attaches the implant from the bone into the mouth and which protrudes through the gum tissues. Following a 3 to 6 month healing period in which the implant fuses to the bone, a crown is then placed on the implant restoring the immediate appearance of a healthy, normal tooth. One-stage implant systems are generally used when the bone quality is good, guaranteeing good initial implant stability. They are also used when cosmetics is not a concern, such as the back areas of the mouth.
Under special conditions an implant can be placed and a crown placed on top of it at the same time. However, this is a very special circumstance requiring ideal conditions and surgical experience as well as crown fabrication know-how. It is generally safer and wiser not to subject an implant to biting forces until it is fully healed and integrated with the supporting bone.
A two-stage procedure is typically used for replacing teeth where there is no immediate need for a cosmetic solution and when more of a margin of safety is required. With this approach, the implant(s) are placed into the jawbone and the gum tissues cover them. They are not exposed to the mouth, but stay buried and left to heal. Once healed, a second surgery is performed to attach an abutment for securing the crown in place. This approach is used when there is poorer bone quality or quantity. This may make it necessary to regenerate bone around the implant at the time of its placement. There may also be other health considerations dictating that a two-stage approach may be indicated.
Depending on your individual situation and medical status, our implant team will determine which approach is best for you. To learn more about these two procedures, read the Dear Doctor article, “Staging Surgery In Implant Dentistry.” You are also welcome to contact us to discuss your questions or to schedule an appointment.