https://takako-dental.com/contents/641/
21.09.26
The implant treatment requires the implant body, which serves as the foundation, to be implanted in the jawbone, so the bone must be thick and high enough to support the implant body. Therefore, if the jaw bone is too small, it may be diagnosed as untreatable.
One way to solve such a problem is to perform "osteogenesis" in the area where the implant is to be placed.
In this article, I would like to explain in detail about osteogenesis and bone grafting, including the treatment process and its merits and demerits.
Please refer to this article if you are considering treatment.
What is "osteogenesis"?
Implant treatment requires sufficient bone thickness and height in the jaw. The procedure used to increase the amount of bone in the jaw that is lacking is called osteogenesis. This treatment allows the patient to undergo treatment without giving up on the implant.
What happens if I have low bone?
If the jaw bone is too thin or too low for an implant, the implant body will penetrate the jaw bone or be exposed through the gum.
It would be difficult to drill a hole for the implant to be placed in the first place, and it would be difficult for the implant to bond with the bone and surrounding tissues, making it less stable.
Therefore, before placing an implant, osteogenesis is performed to provide the necessary thickness and height to stabilize the implant.
Who needs it?
There are several factors that can cause jaw bone insufficiency. There are two main patterns that are most common.
One is common in the elderly, where the jaw bone becomes thin because it is less sensitive to stimulation due to years of living with dentures. The other is a case of tooth loss due to severe periodontal disease that has caused the jawbone to unravel.
Other cases where there is little jaw bone in the area where the implant is to be placed, such as when a tooth has been missing for a long period of time due to extraction or dehiscence but left untreated, or when part of the jaw bone has been lost due to a tumor, etc. are eligible for osteogenesis treatment.
Who can receive this treatment?
Some people may not be able to undergo osteogenesis if they are habitual smokers or have a systemic disease that prevents them from undergoing the surgery itself.
Smoking reduces blood flow due to the components contained in cigarettes, which prevents the bonding of bone and surrounding tissues and the healing of wounds in the surgical site.
In addition, patients with systemic diseases that make it difficult for them to undergo open surgery may not be able to undergo osteogenesis as well as implant placement surgery because of the increased burden on the body. If you wish to undergo this procedure, please be sure to discuss your situation with us during the medical interview.
Types of Osteogenesis
There are two main types of osteogenesis procedures. One is the GBR method (bone-guided regeneration), which is generally performed, and the other is the sinus-raft method, which is performed in the maxilla. Each method is explained below.
GBR (bone-guided regeneration)
The gums are incised and the area where the bone is lacking in the jaw where the implant is to be placed is filled with autologous bone or artificial bone (bone replacement material) and covered with an artificial membrane called a "membrane. The gums are then closed and a period of several months is allowed for the jaw bone to regenerate and increase, waiting for it to stabilize. Once the thickness and height have stabilized, implant placement surgery is performed.
Sinus Lift Method
This procedure is called "maxillary sinus lift" and is performed when there is insufficient bone in the upper jaw. The upper jaw tends to be thinner than the lower jaw because of the proximity of the maxillary sinus, a cavity located near the nose, although individual differences exist. By increasing the thickness of the bone in this area to a stable thickness, this treatment allows for the stable placement of implants.
Advantages and disadvantages of osteogenesis
Osteogenesis is a revolutionary treatment method that opens up the possibility of receiving treatment even when it has been determined that implant treatment would not be possible.
However, it requires surgical treatment and requires a thorough understanding of the treatment details, including advantages as well as disadvantages.
Advantages
The greatest advantage is that bone thickness and strength can be secured, making implant treatment possible even for people with bone so small that they would not be able to receive implants.
It also opens up the possibility of treating multiple teeth as well as single teeth.
In addition, the gums, which have been thinned and unbalanced due to low bone, will return to their original height, and esthetic restoration can be expected.
Disadvantages
Normal implant treatment also involves surgical procedures for incision of the gums and cutting of the jawbone, but if osteogenesis is required, the same surgical procedure must be performed before the incision, so two surgeries are necessary. Postoperative swelling and pain will also occur, so the physical burden is more than that of implant surgery alone.
After bone formation, there is a period of about six months to allow the bone to grow, bond with the tissue, and stabilize, so if implant treatment follows, be prepared for a long period of time to complete the procedure.
Treatment Flow
1: Anesthesia
Local anesthesia is administered to begin treatment. For patients with a strong fear of surgery, intravenous sedation may be used.
2: Gingival incision
The gums of the area where bone is to be created are exposed through an incision.
3: Bone cutting
In the case of a sinus lift in the maxillary sinus, a portion of the bone is cut away to expose and remove the Schneider's membrane, the mucous membrane that covers the maxillary sinus.
4:Bone grafting
The area of thinning bone is filled with previously harvested autogenous bone or bone grafting material and covered with an artificial membrane called a "membrane. The artificial membrane is covered with the membrane.
5: Suture
The incised gums are put back and sutured.
6:Regeneration period
Wait approximately six months for the bone to regenerate and stabilize. Since there are individual differences, check with your family doctor for the actual healing period. After that, move on to the implant placement surgery.
Conclusion
Not all clinics that provide implant treatment can perform osteogenesis.
If you consult with a clinic that does not perform osteogenesis, you may receive a diagnosis that implants cannot be placed.
Bone augmentation is a method that allows such patients to avoid giving up on implant treatment. If implant treatment is possible through osteogenesis, the treatment options will expand.
And after the treatment, you will have teeth that you can chew firmly and gums that are well-shaped.
Please consider your lifestyle and health condition, and consult with the clinic that handles your treatment.
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