Some neighbors who have been missing teeth for a long time need to have another "bone graft" step to plant their teeth. In fact, there are many types of bone grafting surgery, and different bone grafting methods need to be selected according to different situations. Today, let me introduce to you the common bone grafting method of maxillary teeth - maxillary sinus lifting surgery.
What is "maxillary sinus lifting surgery"?
Before starting, put a structural diagram of maxillary sinus
From the figure, we can see that if the maxillary teeth are defective for a long time, the maxillary sinus will gradually "encroach" and lose the original alveolar bone position, that is, the bone is absorbed and there are fewer bones. The implant is not injected enough, and it cannot be firmly combined at the same time, and it may also cause the implant to poke into the maxillary sinus, causing inflammation.
Therefore, the maxillary sinus mucosa must be lifted up to make room for the implant to facilitate the implant to implant more firmly.
Two categories of maxillary sinus lifting
Maxillary sinus lifting is divided into internal lifting and external lifting.
maxillary sinus elevation surgery means that directly opens the bottom of the maxillary sinus, and lifts the maxillary sinus mucosa upwards, creating enough bone space so that the implant can be implanted smoothly. Internal lifting surgery can implant while completing bone grafting, in one step.
Maxillary sinus external lifting , is suitable for patients with more severe alveolar bone resorption . A small mouth is opened from the lateral bone plate of the maxillary sinus , and the maxillary sinus mucosa is lifted up from the small mouth with an instrument, and the bone transplant material is implanted or not inserted between the maxillary sinus base mucosa and the maxillary sinus base (if the lifting height is small, it may not be implanted) to increase the bone mass from the maxillary sinus base to the alveolar ridge.
Advantages of maxillary sinus lifting surgery
Due to the existence of maxillary sinus, if the alveolar ridge atrophy is severe, or the patient has a larger maxillary sinus and the base wall of the maxillary sinus are too low, it will bring more restrictions to maxillary dental implants.
Maxillary sinus bottom lifting surgery is to lift the maxillary sinus mucosa from the sinus bottom by surgical methods. can effectively increase the bone mass of , thereby improves the possibility of successful dental implant surgery .
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