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Starting with 1980, the medical world began perfecting the sinus lift technique, a delicate procedure which involves lifting the sinus membrane from the maxillary sinus floor to increase bone volume necessary for the insertion of dental implants. The sinus lift technique consists of placing a bone graft inside the sinus without affecting the well-functioning of the nasal cavity. We have performed many such procedures and we have improved constantly.We owe our constantly favorable and predictable results to a careful selection of biomaterials (those which have stood the test of time in our own work and INDEPENDENT international studies), surgical technique (microsurgery) and technology (piezosurgery).
CT SCANS IN SINUS LIFT PROCEDURES
CT scans provide us with information about the sinuses, the state of the membrane, the width of the bone ridge, the morphology of the sinus floor and the width of the vestibular and palatine walls. It allows us to adapt the surgical techniques to the anatomical particularities of the area (blood vessels, nerves, etc) The sinus membrane is very thin and coats the sinus walls.
The purpose of this procedure is to place bone augmentation materials between the alveolar bone and the membrane, without perforating it.
We use piezosurgical techniques which do not damage the soft tissues, leaving the membrane intact, and special instruments to safely lift it. A thorough investigation of the sinus anatomy and the strict surgical protocol ensure a success rate of over 99%.
PIEZOSURGERY IN SINUS LIFT
With piezosurgery (Vario Surgery), the doctor cuts a window into the vestibular wall of the sinus, to gain access to the sinus membrane. This is separated from the inside of the bone cavity with the fine tips attached to the piezosurgery device. The tension inside the membrane released, it can be more easily lifted off the bone. After coming off, it becomes visible that it moves with the patient’s breathing.
The bone graft is generally obtained by mixing granulated biomaterials (artificial bone) with the patient’s own bone. It is inserted in between the membrane and the floor of the sinus. The next step is applying a collagen membrane (resorbable biomaterial) which seals the window and prevents soft tissue proliferation. The membranes guide the healing in the desired direction. The wound is then sutured and will protect the graft from external factors.
INDICATIONS AND TREATMENT FOLLOWING SINUS LIFT
Upon completion of procedure, we recommend the patient to follow a treatment consisting of anti-inflammatory drugs, antibiotics, pain killers, cold bandages and to avoid physical effort. The patient must avoid any activity which exerts pressure on the sinuses and the nasal cavity, in order to prevent the bone graft from moving or damaging the bone graft or any other complications.If the advice is followed, primary healing should be faster. A good communication with the medical team is paramount during treatment. After surgery, periodical checks are mandatory to monitor healing and remove the stiches.
Usually, full recovery which results in thickening of the sinus floor with new bone takes anywhere from 8 months to 1 year. This period is necessary to stabilize the bone graft and fully mineralize the newly formed bone.
THE ADVANTAGES OF SINUS LIFT
- Precision due to direct visual access.
- Does not depend on the volume of the initial bone.
DISADVANTAGES OF SINUS LIFT
- Requires top notch equipment and outstanding prowess (we frequently perform this type of surgery, with excellent results)
- The span of the procedure.
INTERNAL SINUS LIFT – THE TECHNICAL OPTION
Access to the sinus coincides with the preparation for implant insertion.
It is less invasive, but it requires the presence of at least 6 mm of bone tissue.[hr]
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