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Sinus augmentation (sinus lift) is performed when the floor of the sinus is too close to an area where dental implants are to be placed. This procedure is performed to ensure a secure place for the implants while protecting the sinus.

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Lowering of the sinus can be caused by:

  • Long-term tooth loss without the required treatment
  • Periodontal disease
  • Trauma


A sinus augmentation procedure is a relatively common form of oral periodontal plastic surgery designed to increase the height of the maxillary bone so that reconstructive work, such as dental implants, can be performed.

The maxillary sinuses are located behind the cheekbones, and run from under the eyes to the area just above the upper back teeth.

It is very common that the roots of the upper back teeth will protrude into these sinuses and, if the teeth require to be removed, not much supportive bone is left between the maxillary sinus and the mouth. This creates a problem because it means there is very little natural bone in which to anchor a dental implant.

before after sinus augmentation

Before the Sinus Augmentation Procedure:

First, either board certified Beverly Hills periodontist Dr. Aalam or Dr. Krivitsky thoroughly reviews your medical history, as well as the health of your sinuses. Then, the anatomy of your upper jaw and sinuses is examined with the use of X-rays. CT scans are also often used, as they accurately measure the height and width of your existing bone.

During the Sinus Lift Procedure:

During the sinus augmentation procedure, Dr. Aalam or Dr. Krivitsky enters the sinus from the location of the missing upper tooth or teeth. The sinus membrane is then gently manipulated upward after which a bone grafting material is placed at the base of the sinus. When there is sufficient bone present between the jaw and the bottom of the sinus, Dr. Aalam or Dr. Krivitsky can then proceed to place a dental implant.

If there is not enough bone available before healing, then further work in the area must wait. The bone and any bone grafting material must be thoroughly integrated for the dental implant to be successful. Complete and successful healing may take several months and will depend on the location of the affected area and the health of the patient. Dr. Aalam or Dr. Krivitsky will determine when bone is sufficiently healed, so that dental implants can be placed.

If you are considering sinus augmentation, schedule a consultation with Dr. Aalam or Dr. Krivitsky today by calling (310) 826-8242.

Next, learn more about bone grafting.


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