Socket Bone Grafting Techniques using d-PTFE Membranes

Socket Bone Grafting Techniques using d-PTFE Membranes is organized by Dentaltown, L.L.C.

Released: 6/4/2014
Expiration Date: 6/30/2028

Overview:
Dense PTFE is non-resorbable and chemically stable. In addition to its long history in the field of guided tissue regeneration, PTFE has been used for over 30 years in cardiovascular applications such as sutures, vascular grafts, and heart valves. PTFE is bio-inert and does not cause inflammation. If manufactured with a small pore size (0.3 microns), bacteria are prevented from entering the structure of the barrier while still allowing diffusion of oxygen and small molecules across the membrane. Upon implantation, dense PTFE is immediately coated with plasma proteins, facilitating cellular adhesion to the smooth, biocompatible surface. This cellular adhesion is observed to form a hermetic seal, providing resistance to the migration of bacteria and epithelial cells around and under the membrane when it is exposed to the mouth. Plasma protein adsorption also facilitates diffusion of soluble organic molecules across the membrane. Removal of dense PTFE is simplified due to the lack of tissue ingrowth into the surface structure. The primary advantage of high-density PTFE is the ability to remain exposed in the mouth while protecting the underlying defect and bone graft. The membrane is soft, flexible, and easy to handle. Primary closure is not required and the membrane may be removed without additional surgery if exposed. If the primary closure technique is used, the membrane may be easily removed through a small incision in a flapless technique.

Educational Objectives:
Upon completion of this course, participants should be able to achieve the following:

• Understand design principles of surgical flaps that facilitate placement and retention of d-PTFE membranes
• Understand the need for thorough debridement of the surgical site prior to the placement of biologic materials at the surgical site
• Manage d-PTFE membrane application in regards to trimming of the membrane in order to accommodate the morphology of the defect, as well as seating of the membrane in order to prevent its distortion upon placement
• Understand suturing principles that facilitate flap and membrane adaptation to the surgical site
• Perform minimally invasive socket grafting techniques using d-PTFE membranes when primary closure cannot be obtained at the surgical site and when a gain in keratinized tissue is desired