Deterioration of the jaw bone can happen in areas where you’re missing teeth, since the tooth roots stimulate the jaw bone. Without sufficient bone, you won’t be a candidate for dental implant placement. To alleviate this, bone grafting, the replacement or augmentation of missing bone around the teeth, can be performed. There are three types of bone graft procedures: autogenous, allograft, and xenograft. Autogenous grafts take bone from one area of your body and transplant it to the location in the mouth being restored. Allografts involve bone from a donor. Xenografts use bone from non-human sources. Bone grafts usually take about six to nine months to heal completely. Dental implants will not be placed until your mouth has healed completely.
Periodontal disease causes bone loss around teeth, which can increase the chances for tooth loss. Once a tooth has been lost, the supporting jaw bone will disappear over time. This can make wearing dentures uncomfortable. However, simple techniques are now available to regrow lost bone, provide support for dental implants, or to improve esthetics beneath a fixed bridge.
Guided tissue bone regeneration does not always require the removal of bone from any other part of the body. Instead, many options use membrane barriers, tissue stimulating proteins, or bioactive growth factor gels. Occasionally bone grafting procedures are required; bone grafts can be from your own bone, tissue banks, or synthetic materials. The goal of each of these treatment options is to stimulate the body to grow new bone or to hold the space for the bone to regenerate into.
The BenefitsThe bone and gum tissue should fit together like a turtleneck around your neck. But when periodontal disease is present, this supporting tissue and bone is destroyed and pockets in the gums develop. Eventually, if too much bone is lost, the tooth will need to be extracted.Guided tissue bone regeneration helps the body to regenerate lost bone. By repairing the damage done by periodontal disease, this procedure will increase the chances of keeping your natural teeth and will decrease the odds of serious health problems associated with periodontal disease.
Ridge augmentation is a common procedure performed to help recreate the natural contour of the gums. Often, after a tooth is removed, the bone in the jaw will begin to deteriorate and recede. The height and width of the socket, which was supported by the tooth, will begin to shrink after the tooth is removed. Many patients will eventually develop an indentation in the gums or jawbone where the tooth used to be.
Restoring the original height and width of the socket is not usually medically necessary. However, it may be necessary in order to place a dental implant or for aesthetic purposes. If a person’s bone has deteriorated too much, placing a dental implant may not be possible.
There are two types of Ridge Augmentation procedures: Soft Tissue and Hard Tissue. Occasionally, both types of ridge augmentation are performed at once.
Soft tissue grafts are usually done to improve the esthetics and cleansibility of the site. Prior to the procedure, the area will be numbed. An incision is made to expose the site and a soft tissue graft is then obtained either from the palate (roof of the mouth) or a soft tissue substitute. The graft is then inserted into the area receiving the graft, which is then secured with stitches.
Hard tissue grafts are done to recreate adequate bone contouring prior to dental implant placement. Prior to the procedure, the area will be numbed. An incision is made and the gum lifted away to expose the bone defect. A bone graft obtained either from another site within the mouth or cadaver bone is placed in the area receiving the graft and secured using titanium screws. The area is then closed with stitches.
Healing time varies by patient and the size of the area repaired but usually lasts no longer than 6 months.
When one or more teeth are extracted from the mouth, soft tissue and bone can begin to collapse. Without the tooth root to stimulate it, the surrounding jawbone will almost immediately begin to collapse and shrink. If there is too much bone loss, it may be impossible to place dental implants and it may become more expensive, more invasive, more time consuming, and more uncomfortable to replace the lost bone. Ridge (or Socket) preservation is a type of bone grafting procedure that rebuilds and stabilizes bone where an extraction has left an empty, weakened socket.
Ridge preservation procedures begin with the removal of the tooth. The doctor will do so carefully so as to not disturb existing bone in the socket. Next, the doctor will insert a specialized bone-grafting product. This product can be an autogenous graft, allograft, or alloplast/xenograft. The bone-grafting material is designed to build and regrow bone in the socket. After it has been placed, the grafting material will be stabilized with stitches and/or a membrane. Healing time is approximately 3-5 months before a dental implant can be placed.
Ridge preservation can essentially minimize the amount of bone loss that occurs after the removal of one or more teeth. Leaving the socket empty after an extraction is sure to lead to deteriorating bone in the jaw, making it more difficult to place an implant later.
Ridge preservation is also:
· Minimally invasive with minimal discomfort
· Prepares the site for future placement of a dental implant without additional grafting
· More cost effective and less painful than waiting to have the grafting procedure later
· Preserves a natural looking smile
Often patients who have lost teeth in the upper jaw require a sinus lift in order to have dental implants placed. This is because the bone in the area where teeth are missing naturally beings to shrink, or resorbs, over time. As a result, the sinuses expand to occupy the empty space where the bone used to be. With insufficient bone to securely place the dental implant, a sinus lift is necessary to move the sinus where it is meant to be and to place additional bone in the area.
There are two forms of sinus lift procedures and the form you receive depends on your individual needs and the amount of bone you still have. You doctor will discuss your options prior to the procedure.
Before the procedure begins, a local anesthetic is applied to the site. The doctor will then create a small opening in the bone to access the sinus cavity. Using a small instrument, the doctor will then gently lift the sinus back to its original position. A grafting material is then placed beneath the newly raised sinus cavity along the existing bone. This grafting material will then mesh with your bone, thus creating more bone.
After the Procedure
Usually, you will require 4-9 months to heal completely from the sinus lift procedure before dental implants can be placed. This increase in bone will compensate for bone lost and will allow for multiple implants to be placed. Without this procedure, many patients will not qualify for dental implants.