When is a sinus lift necessary?
If a tooth is lost, the insertion of a dental implant is usually the best solution in many respects. However, before inserting a dental implant, it is always necessary to check whether the bone volume of the jaw is sufficient to anchor a dental implant in a long-term and stable manner. If the tooth gap persists over a longer period of time, this is usually accompanied by a visible decrease in bone volume. In these cases, the jawbone must then be rebuilt so that the implant can grow firmly into the bone. In general, a sinus lift refers to an increase in bone height in the posterior region of the upper jaw.
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Sinus lift - procedure and duration
"The first step, when you have decided to place a dental implant, is the exact diagnosis of the upper jaw bone. DVT x-rays and a 3D scan enable a precise, three-dimensional representation and measurement of the current tooth and jaw situation. This diagnostic basis is used to decide which method of bone augmentation is the right approach for you. In general, a sinus lift is used in the lateral upper jaw. A distinction is made between an internal (closed) and an external (open) sinus lift.
Internal sinus lift
The internal sinus lift, also known as a closed sinus lift, is used when there is only a very slight height deficit of the bone. In these cases, the usually very uncomplicated internal sinus lift is the optimal way to gain a few millimetres (max. 3 mm) in height of the jawbone. In this process, the bone is lifted above the tooth socket into which the artificial implant root will later be inserted. An internal sinus lift is therefore usually carried out during the implantation, which avoids an additional intervention for the patient.
External sinus lift
An external sinus lift, also known as an open sinus lift, is necessary if the height of the jawbone already shows a high loss. If several millimetres (more than 3 mm) of bone height must be gained, the external sinus lift is therefore the most suitable option. In this case, the bone replacement material is inserted into the mouth through a small channel on the outside of the jaw to allow for extensive bone augmentation. The external sinus lift is usually chosen when several teeth are to be replaced or the volume of the jaw bone has already decreased considerably.
After the procedure, cooling of the treated areas helps to prevent possible swelling and reduce pain.