Once tooth has been lost due to dental decay or trauma, there can be associated changes to the surrounding bone that used to hold the tooth in place. If an individual has been missing a tooth or teeth for an extended period of time, is common that the associated bone structure can diminish over time. If too much bone has been lost, implants may not be able to be placed in the bone in its current state. Fortunately, with the implementation of various bone grafting techniques, implants can still be possible of most individuals. Bone grafting technique allow the patient to regain bone that has been lost in order to have an implant placed. Depending on the degree of bone loss, different bone grafting techniques may be necessary.
Bone Grafting What Is It And How Does It Work?
Typically, bone grafting can be categorized in the minor or major grafting.
-Minor grafting: some implant sites can have areas of insufficient bone making implant placement compromised. Will the use of various bone grafting techniques and materials, of deficiency of this size can ben treatment in a minimally invasive procedure that can often be completed at the time of implant placement. This type of grafting will heal currently along-side your implant to ensure an optimal result.
-Major grafting: there are situations in which a large degree of jaw bone has been lost due to long term tooth loss, trauma, infection, or congenital disorders. If the proposed implant site or sites to not have enough bone, various bone grafting procedures may need to be completed prior to implant placement. Bone grafting procedures can vary from using bank bone, to obtaining bone from other areas within the mouth such as the posterior jawbone, or other areas of the body such as the hip bone. Once the bone graft has been obtained, it is then placed within or on the implant site, fixated in place and allowed to heal. During this healing process, the bone grafting material heals and integrates (fuses) to the surrounding bone underneath the soft tissue, to make the area amenable to implant placement. This bone graft healing can take up to six months prio to implant placement.
Various materials can be used in bone grafting and can be categorized into four main areas:
-Autograft: bone taken from one site in an individual’s body and moving to another site. This typically requires creating two surgical sites: one from the area when the bone graft is harvested, and one where the bone graft is placed. For oral surgery procedures, this bone is typically obtained from the back portion of the lower jaw from inside the mouth.
-Allograft: this is laboratory processed human bone (cadaver bone), from the deceased registered donor from a medial tissue bank. This type of graft acts as a framework for your body to grow and develop new bone over and within.
-Xenograft: this is laboratory processed bone that come from an animal. This is typically bovine(cow) bone.
-Alloplastic: these types of grafts are synthetic, laboratory made materials. These products are substituted to using real bone. One such substitute is Bone Morphogenic Protein, commonly referred to as BMP. These proteins occur naturally in the human, and act to stimulate and regulate bone growth and healing. This material can be used in your treatment to help regain bone that has been lost in area where an implant is desire but is not amenable to an implant in its current state.