At our office tooth extraction sites are managed with the placement of a bone graft into the extraction socket and placement of a membrane over the bone graft.
The rationale for doing this is multi faceted. For instance, in the anterior (front) of the mouth where the residual boney walls after an extraction are usually very thing and will generally resorb about 30% creating an unaesthetic gum architecture this could create an unfavorable unaesthetic sequel for future prostadontic replacement, ie: implant or bridge.
Thus the placement of a bone graft in the extraction site with a membrane over the bone graft will help maintain the height of the residual boney ridge for future tooth replacement with a greater aesthetic result.
Another advantage of using a bone graft and membrane after an extraction, for instance, in a 3rd molar area, is to prevent food from entering the extraction site.
When food enters the extraction site, the bacteria in the food as well as the food itself, slows the healing process creating more post operative discomfort as well as potential for injection “dry socket”.
The placement of the bone graft, by acting as an internal band aid speeds the healing process and comfort of the patient.
The bone graft and the membrane both resorb as they induce the patient’s own bone to regenerate in the extraction site.
The artificial bone also acts as a scaffold for patients own newly regenerated bone. The membrane covering the bone graft prevents the patients gum tissue epithelial cells from growing down into the grafting area impeding regeneration.
TECHNIQUE
Tooth is carefully extracted from socket. All granulated tissue and infective tissue is curated out of extraction socket to completely obliterate it and sometimes placed in boney defects of adjacent teeth. This bone graft is of non human and non animal source.
A resorbed membrane is carefully placed over bone grafted area and tucked under gum tissue. The gum tissue is then sutured a tight as possible over the grafted area.
We have gotten excellent results using this process with extraction sites over many years.