December 2011, Volume 7, Issue 11
Published by AEGIS Communications
NuOssTM XC Sinus
A unique self-expanding composite graft for sinus augmentation.
Caused by any number of factors, dental bone loss in the area of the posterior maxilla is a concern for many potential dental implant patients. A sinus augmentation or “sinus lift procedure” can be performed to increase the amount of bone in this region in order that dental implants might be placed. During this procedure, the sinus membrane is elevated and a dental bone grafting material is placed.
Though various protocols for a sinus lift procedure exist, the lateral window sinus lift approach can be employed when a significant amount of bone augmentation is needed. This procedure requires the elevation of a full-thickness buccal flap, which exposes the lateral maxillary sinus wall. A “window” is then made in the sinus wall, which allows for the elevation of the Schneiderian membrane and subsequent bone graft placement. Upon successful regeneration, the augmented site is of sufficient bone volume and quality for successful placement of dental implants.
A potential complication of the sinus lift procedure is the sinus perforation. The incidence of sinus perforations varies, but it has been reported that perforations can occur up to 60% of the time a sinus lift is performed. Although various means of repairing these perforations have been developed, the increased chance of infection, graft failure, or the potential for implant failure may be a cause for concern.
Traditional dental bone-grafting particulates have been widely used due to their success and availability. As well, the use of dental bone-grafting putty has proven popular with its ease of placement when compared to the particulate materials. However, neither of these materials will allow the clinician to have significant placement control in the area where augmentation is most needed. Factors such as sinus shape, sinus volume, putty viscosity, particulate handling, particle slumping, and even gravity are all factors that can contribute to less than desirable placement of the graft material. Should a perforation not be repaired, graft migration could result in subsequent infection and increased potential for postoperative complications.
NuOss XC Sinus
A unique, patent-pending bone-grafting composite has been developed that will allow the successful implantation of a bone-grafting material with increased control and less concern for subsequent complications. NuOss XC Sinus bone-grafting composite is comprised of 80% mineralized porous anorganic bovine bone, and 20% type I bovine collagen. In its expanded form, the composite material provides a three-dimensional matrix that optimizes spacing of the bone-grafting particulate, allowing improved vascular access into the grafted site. The material is preformed into shapes and volumes commonly used in the sinus lift procedure, and can conform to irregular defects when hydrated. Histological evaluation of the material shows results comparable to traditional bone-grafting materials.
The unique self-expanding feature of the material may allow for a less invasive procedure to be used while still allowing an adequate amount of grafting material to be placed (Figure 1, Figure 2 and Figure 3). Unlike traditional particulate materials, NuOss XC Sinus can be placed without hydration, in a compressed format, allowing for expansion on contact with blood or saline. The composite nature of the material allows for precise placement of the graft, with minimal concern of particle migration. Efficiency of graft placement into the sinus cavity may be enhanced as well.
NuOss XC Sinus offers clinicians a unique grafting material as compared to traditional bone-grafting materials. The clinician now has the opportunity to more precisely control graft delivery and placement, without the concern of overpacking the defect and compromising the needed vascular access. As well, the three-dimensional matrix optimizes particle spacing, maintains space, and allows for improved vascular access to the grafted area. The composite nature eases concerns for particle migration and subsequent postoperative complications.
NuOss XC Sinus requires no special handling and can be stored at room temperature. It allows for minimal preparation time, easy graft delivery, and saved time.
The preceding material was provided by the manufacturer. The statements and opinions contained therein are solely those of the manufacturer and not of the editors, publisher, or the Editorial Board of Inside Dentistry.
For More Information, Contact:
ACE Surgical Supply, Inc.