When a tooth falls out and its place is empty for a long time, the bone in this place atrophies. This is due to the lack of functional load on it. And then it will not be possible to install a new tooth, since there is not enough bone tissue to securely hold the implant.
Also, a lack of bone tissue can be the result of individual characteristics, trauma, surgery.
In all these cases, before implantation, a bone augmentation operation is first performed - a sinus lift. In this case, the following are suitable for the role of a graft:
- a piece of bone tissue of the jaw, rib, iliac region. Bone tissue is taken from the patient himself, this is called autotransplantation;
- donor bone tissue after appropriate processing. This is called allotransplantation;
- bone tissue of animals - xenotransplantation;
- artificial materials. It can be bioceramics, hydroxyapatite, and others.
When is a sinus lift done?
Sinus lift is also called bone augmentation. Most often, bone tissue is built up in the area of the upper lateral teeth. In 80% of cases of implantation in this area, a sinus lift is required. For this, bone powder from a completely biocompatible material is poured into the area near the maxillary sinuses.
If you want to have a dental implant and your doctor has identified a bone deficiency, you have two options:
- use a removable denture,
- make a sinus lift, and then install permanent implants and crowns.
If you have chosen the latter option, our dental implantologist will diagnose the corresponding area. For this we have a Cone Beam Computed 3D Tomography. Your research will give you a minimal dose of radiation - about the same as a six-hour plane flight.
Based on the obtained 3D image, the dentist will determine the exact volume of bone tissue and the absence of inflammation in the sinus.
How is the amount of bone tissue determined?
A panoramic image will not allow you to determine the exact amount of bone tissue. Only a 3D shot is needed here. Our clinic has equipment for 3D tomography, so you can take a picture on the spot and the dentist will immediately know the result.
On the 3D image, the doctor will see how the exact distance between the boundaries of the sinuses and the oral cavity is, and whether there is enough space for the implant. One of the smallest implants is 10 mm long, and if the bone tissue is only 8 mm thick, implantation is impossible without its augmentation.
Tomography allows you to obtain frames in lateral and direct projections, and the ruler function allows you to measure the amount of bone tissue with an accuracy of tenths of a millimeter.
Sinus lifting for inflammation in the sinus
The picture shows not only the volume of the bone, but also allows you to diagnose the sinuses. The main contraindication for bone augmentation is sinus inflammation. It can be sinusitis, sinusitis, cyst.
With inflammation, fluid collects in the sinus. Its level can be low without even causing a runny nose. But when performing a sinus lift, there should be no fluid in the sinuses at all.
How to do a sinus lift if the sinus is inflamed
If you have sinusitis or sinusitis and need a sinus lift, see your ENT. Our specialist will suggest the best treatment option. The methods can be different. Sinusotomy shows excellent results, and it is used most often.
Also, inflammation in the sinus can be the result of tooth infection. If the root of the tooth has inflammation - granulomas - the infection can go into the sinus. In this case, it is necessary to get rid of inflammation both in the root of the tooth and in the sinus, and only then carry out the augmentation of bone tissue.
How sinus lifting is done at Doctor PROFI
There are two options for performing a sinus lift:
- Closed - if the height of the natural bone is more than 7 - 8 mm.
- Open - if the height is less than 7 - 8 mm.
Closed sinus lifting is performed just before implantation in one stage. To do this, the dentist:
- Makes a hole where the implant will stand.
- Shifts the maxillary sinuses, freeing up space.
- Fills the space with a special powder.
- Immediately, without additional incisions, the implant is installed.
In this case, when sinus lifting and implantation are performed in one procedure, it is important to protect the new implant from excessive load and increase it slowly and gradually. Thanks to this, the bone filler will have time to gain the necessary strength and form correctly.
After the procedure, edema forms on the side of the cheeks, which disappears in 5 to 7 days. During the recovery period, try to exclude physical activity and protect yourself from colds and runny nose.
An open sinus lift is done when there is a large lack of bone tissue. The procedure is more complicated than closed augmentation and is performed at least 20 weeks before implantation.
Open sinus lifting is done in 4 stages:
- A hole is made in the gum and bone.
- The floor of the maxillary sinus is displaced to make room for new bone tissue.
- Artificial bone tissue is placed in the vacated space.
- Sew up the hole.
The operation takes less than an hour. The patient does not feel pain or discomfort. Our specialists carry out the procedure using high-quality anesthetic, without blood and with minimal trauma to the surrounding tissues. Thanks to this, patients recover quickly after a sinus lift.
After an open sinus lift, you need to wait about 5-6 months. During this time, synthetic bone is formed from the introduced substance. At the same time, natural fabrics will already penetrate artificial formations, due to which the new bone will acquire the necessary softness. The doctor takes a control X-ray to assess the condition of the bone tissue and installs the implants according to the agreed plan. Online booking