What if you have insufficient bone for implant placement?
In patients with insufficient bone, grafting can be done to improve the quantity and quality of the bone to place the implant.
Bone loss may be because of the following reasons:
The graft used may be taken from different part of your own body ( autologous) or from cadaveric bone obtained from bone banks (allograft) and from synthetic sources (alloplast).After bone grafting ,the implants may or may not be placed in the same sitting.
The patients are recommended to wait for a period of 4-6 months before final teeth are given.
Collagen membrane and PRF (platelet rich fibrin) are often used with grafting to hasten the healing and achieve more favorable results.PRF is obtained from the patient’s own blood and is used to accelerate the healing of soft and hard tissues. There is no risk of an allergic reaction as its patients own blood that is used to make PRF.
Sinus lift surgery is done in the upper jaws when there is insufficient bone in the premolar and molar region for the placement of dental implants. It is done by lifting the membrane of the maxillary sinus followed by placement of bone graft. Depending upon the amount of bone available, two types of sinus lift procedures exist-
The indirect technique is used if the bone height is at least 7-8 mm and the direct one is used if the height is less. With the indirect techniques a specialized kit like OSSTEM CAS kit is used to condense the bone and lift the sinus membrane and bone graft material is placed into the newly created space.
In the direct sinus lift, a small window is made on the outside of the sinus wall and an opening is created in the bone, which is filled with bone graft.
Dental implants can be placed while performing the sinus lift surgery or after it. If the height of the bone is minimal, it requires from 4 to 6 months for healing and bone regeneration after the sinus lift procedure. The patient should be under regular medical supervision in the postoperative period.