Sinus lift closed
SINUS L LIFT (Sinus Lift Closed)
Difficult conditions for the insertion of implants are most often found in the posterior alveolar regions of the jaws : as a result of pneumatisation of the sinuses (with age) and when teeth are missing, the alveolar process atrophies. One of the methods that allows us to use implants in this particular area is the sinus floor liftand the insertion of autogenous bone or biomaterials into the space created between the floor of the maxillary sinus cavity and the elevated mucosa lining this cavity.
The high success rate of this type of procedure and the possibility of a single-stage implant insertion have led to the rapid adoption of the sinus lift procedure in implant treatment planning.
The healing of implants, inserted with a sinus floor lift, usually proceeds without complications, although the time is significantly prolonged.
The elevation of the maxillary sinus floor opens up new possibilities for implant treatment, as it allows implants to be inserted in difficult anatomical conditions, especially in lateral sections within the jaw.
CLOSED METHOD
With the closed method, it is possible to lift the maxillary sinus floor by a maximum of 3.0-3.5 mm, but practically always the procedure is accompanied by the simultaneous insertion of an implant. The procedure carries a greater risk of perforation of the mucosa of the maxillary sinus floor, which is related to the fact that it is performed without full visual control. This risk can be minimised by using a thorough radiological diagnosis before the procedure. In both methods, as usual, the experience of the surgeon is paramount.
And in particular, the correct assessment of the bone resistance felt during the procedure, related to the change in bone density in the area of the lamina propria. The management of sinus membrane rupture is still the subject of much controversy. There are even opinions that minor perforations of the mucosa do not disqualify this type of procedure and that the insertion of an implant is acceptable after such a complication. However, continuous radiological follow-up is necessary.
