The sinus lift procedure allows dentists to place an implant in a situation where there is insufficient bone tissue to support the implant. A closed sinus lift using the CAS KIT system is less invasive than the open method and the healing process is more efficient.
The maxillary sinus is the largest of the paranasal sinuses. It obtains its final size and shape with the development of the middle part of the human face, after the period of eruption of permanent teeth. The capacity of the maxillary sinus in adults is between 8 and 25 cm.
The loss of a tooth leads to progressive atrophy (atrophy) of the alveolar process of the jaw over time. In such a case, augmentation procedures, i.e. procedures that reconstruct the bone, are the only solution for a patient interested in placing implants. One such procedure is the sinus lift.
A sinus lift is carried out under local anaesthetic. The dentist separates the oral mucosa from the bone. He then drills a hole in the jawbone and carefully, very precisely separates the sinus membrane (Schneider’s membrane). Once the sinus membrane has been pushed away, a space is created which the dentist fills with bone substitute material.
Shortly afterwards, the dentist places the oral mucosa in its original position and sutures the wound. With a minor bone defect, the sinus lift procedure can be carried out at the same time as placing the implant. More advanced defects require time for the bone to build up. In this case, the implant can be placed six months after surgery.
The use of the CAS KIT (Crestal Approach-Sinus KIT) allows implant dentists to significantly minimise the invasiveness of the sinus lift procedure. It is worth bearing in mind that interventions in the sinus area are associated with a risk of complications. The CAS KIT implantology kit allows the Schneider mucosa to be debrided and lifted using saline solution. In this way, the dentist does not risk disrupting it and performs the procedure at a lower level of invasiveness. Prior to the sinus lift procedure, the dentist will order a cone beam computed tomography (CBCT) scan to be able to accurately determine the condition of the mucosa and the height of the retained bone. To be eligible for the CAS KIT procedure, the patient must show a height of the retained alveolar process of the jaw of not less than 4 mm.