Bone Grafting: Essential for Stunning Implant Success

When patients hear their Hillsboro dentist mention bone grafting, it often triggers anxiety, leading them to reconsider the procedure. This apprehension usually stems from a lack of understanding about why bone grafts are necessary. Not every dental implant procedure requires bone grafting, but a significant number of them do. It’s crucial for patients to comprehend that bone provides the essential foundation for supporting an implant.

Importance of Bone Grafting

Bone grafting plays a pivotal role in dental implants. The bone must possess adequate height, width, and positioning for successful implant placement, depending on the type of restoration desired. Furthermore, the bone should ideally match the level of the adjacent bone. Think of the bone as the foundation of a house—it must be robust and level to support the structure effectively. Similarly, in the mouth, a solid bone foundation is vital. After tooth extraction or prolonged absence of a tooth, bone deterioration occurs, termed atrophy. This affects the alveolar bone, which houses the teeth and their roots. Atrophy typically causes more width loss than height, but both dimensions are crucial.

If the bone is too thin, implant placement becomes impossible as the implant body won’t be fully covered by bone. If the bone’s height is inadequate, the implant risks proximity to adjacent anatomical structures. Implant placement with insufficient bone height can lead to hygiene issues, unaesthetic appearance, and periodontal complications. Dental surgeons generally reconstruct the bone foundation to optimal conditions before implant placement.

Types of Bone Grafts

Various types of bone grafts are used in dental procedures. After tooth extraction, banked bone (allograft) or bone from another species (xenograft, often bovine) is inserted into the socket. A resorbable collagen membrane covers the bone, preventing gum invasion into the socket before bone healing completes, thus preserving socket width and height.

For thin or short bones, autogenous bone grafting is usually essential. This involves transferring bone from another part of the body. Common donor sites include non-tooth-bearing areas like above the wisdom tooth site (ramus), the chin, the maxilla (upper jaw), or the malar buttress (where the cheekbone meets the upper jaw). Tori, naturally occurring bone outcroppings in the jaws, can also serve as donor sites.

Sinus Lifts and Other Solutions

In cases where the upper jaw bone atrophies vertically, it approaches the maxillary sinus. A decision must be made to add bone to the upper jaw (maxilla) or perform a sinus lift. This involves accessing the sinus membrane without tearing it and placing bone beneath. Depending on initial bone levels, implants may be placed simultaneously or in a secondary procedure months later.

Patients often express concern over bone grafting, particularly about the donor site. Alternatives to using a patient’s bone exist, such as allograft blocks from cadavers. While they’re treated to remove disease-causing elements, their resorption is unpredictable, and they may not always integrate well with the patient’s body. Implants in such grafts risk bone loss and failure.

Emerging Techniques and Alternatives

Human recombinant bone morphogenic protein (BMP) is another option. BMP signals the body to grow bone where applied, often used for sinus lifts by soaking a collagen membrane and placing it into the sinus. Success rates are comparable to autogenous grafts, providing a viable alternative to avoid bone harvesting, despite the high cost.

When sufficient oral bone cannot be harvested, bone might be sourced from the hip, tibia, or skull. These procedures sometimes necessitate hospitalization.

Another technique, distraction osteogenesis, involves cutting the bone, allowing a segment to be free yet still attached to soft tissues to maintain blood supply. This segment, through mechanical stretching over time, stimulates new bone growth. However, challenges like device tolerance and managing bone direction remain.

In the lower jaw, if insufficient height exists, nerve lateralization—moving the nerve that provides sensation to the lower jaw—can be considered as an alternative to grafting.

Understanding Enhances Acceptance

When patients understand the importance and procedure of bone grafting, the acceptance of implants increases significantly. A solid comprehension of the treatment and reasoning behind bone grafting minimizes reluctance. By investing time in explaining both the process and benefits, dentists and specialists can enhance patient confidence in their dental implant treatment plan. Creating a strong foundation improves implant success, longevity, functionality, and reduces post-implant complications.

For more information, contact Aloha Dental Specialty Center Hillsboro Dental Care today at 503-614-0198. Discover why we are the preferred choice in the Hillsboro, Beaverton, and Portland area.

Contact Information:

Aloha Dental Specialty Center Hillsboro Dental Care
Address: 7546 NE Shaleen St, Hillsboro, OR 97124, USA
Phone: 503-614-0198
Website: Aloha Dental Specialty Center

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Related: Learn more about dental implants at ADSC | All-on-4 dental implants