New technique simplifies dental bone graft procedures

dental bone graft

To avoid additional surgeries and increased treatment costs, US researchers have developed a new surgical technique to close dental bone graft areas.

In dentistry, bone grafts are performed after tooth extraction to preserve the integrity of the jawbone. It is a common issue that, when performing a bone graft, the graft material will lose its shape during the suturing of the soft tissue. This complication can be prevented with the use of ‘tenting’ screws or tacks to help keep the graft in place; however, removal of the screws or tacks requires a second retrievable surgery.

Now a team from the University of Minnesota, Minneapolis have introduced a technique that aims to maintain the integrity of the dental bone graft during closure.

Termed the Continuous Periosteal Strapping Suture (CPSS) technique, the method—which is described in the Journal of Oral Implantology—relies on resorbable sutures and membrane thereby eliminating the need for a separate surgery to remove ‘tenting’ screws or tacks.

The researchers further found that using sutures with a higher tension rate, or tensile strength, increased the duration of the suture time from 56-70 days to 91-119 days. This increased tensile strength for a longer period is expected to be a critical part of membrane and graft stabilisation, because having longer-lasting sutures will help ensure the sustainability of the procedure.

“One of the biggest challenges when osseous grafting the ridge to widen the site with particulate material is containing the graft and avoiding lateral displacement during healing,” one of the paper’s authors Dr Gregori M. Kurtzman said.

“The CPSS technique predictably helps contain the graft without the need for an increase in material costs or complicated techniques.”

The researchers concluded that although their technique is limited by the tensile strength and resorption rate of the specific suture used, they still found it to have fewer complications and predictable outcomes.

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