What is dental volume tomography (DVT)?
Similar to computer tomography (CT), dental volume tomography is a three-dimensional imaging of body areas. A special X-ray machine with a high-performance computer is used for this purpose. While CT scans the examined region in layers, DVT records the entire region in a single scan. This results in a reduction of the radiation dose by 50-80% compared to a CT.
Our device can already scan areas of different sizes during the acquisition, depending on requirements, so that the radiation exposure can be further reduced.
During the examination, a three-dimensional data set is reconstructed with the aid of a computer. Secondary reconstructions in all planes and in the 3D view can be produced from this data.
Dental volume tomography can be used in all areas of dentistry and in ear, nose and throat medicine.
With its 3D visualization, it enables the physician to enter a new dimension in diagnostics. For you as a patient, DVT currently offers the maximum possible basis for optimal treatment.
What are the advantages of DVT?
- Representation of the examined region in all three planes of the room in original size 1:1
- Extremely high resolution and outstanding image quality
- Overlay-free imaging of the anatomical situation in thin layers
- Lower radiation exposure compared to conventional computer tomography (CT)
- Short examination time (less than one minute)
- Sitting examination without an oppressive examination atmosphere (no “claustrophobia”)
- No contrast agent necessary
What are the indications for DVT?
- Precise planning in implantology and bone surgery
- Representation of displaced and surplus teeth (e.g. wisdom teeth) in relation to their neighbouring structures such as nerves or neighbouring teeth.
- Representation of cysts, tumors and chemical-inflammatory processes such as periodontitis
- Assessment of the maxillary sinus and temporomandibular joints
- Diagnosis of facial fractures in accidents
- Orthodontic diagnostics
- ENT diagnostics
- DVT before wisdom tooth removal
DVT before wisdom tooth removal
In the lower jaw an important nerve runs, which supplies the chin, the lip and the teeth with feeling. There are wisdom teeth that are very close to the nerves and can endanger these nerves during surgical removal. Sometimes the nerve even runs between the roots. This can only be seen exactly in a three-dimensional image.
DVT in implantology
It is important to accurately measure the remaining bone before implantation, especially when bone supply is reduced. The course of the nerves in the lower jaw and the residual height in the upper jaw in relation to the maxillary sinus can be precisely measured. The implantation and any necessary bone augmentation are thus precisely planned in advance. Using a computer planning program, the implant position can be determined in advance and an exact, individual drilling template can be fabricated. Please also read our practice brochures IMPLANTOLOGY and BONE CONSTRUCTION.
DVT before periodontal treatment
In periodontitis, the inflammation causes bone loss around the affected teeth. Conventional x-rays do not show the exact form of bone resorption. Is it an even horizontal or a vertical bone resorption with the formation of deep bone pockets? The latter is more favourable for the success of a regenerative treatment and can be reliably assessed in the three-dimensional representation with a DVT.
Please read more in our practice brochure PARODONTOLOGY.
DVT before root tip resection
If there is inflammation at the root apex, cysts and bone resorption can become so large that a root apex resection no longer makes sense and the tooth should be removed carefully and gently. In a two-dimensional conventional X-ray, the extent of the inflammation and its location in relation to surrounding structures such as the maxillary sinus and mandibular nerve cannot be assessed as well as in DVT.
Are the costs covered by the cash register?
Most private insurances cover the costs of DVT recording. The statutory health insurances do not cover dental volume tomography. Invoicing is carried out in accordance with the Gebührenordnung für Ärzte (GOÄ) as an analogous calculation to computer tomography. The expenditure of the evaluation is considered thereby. This is higher for implant planning than for the assessment of a tooth-nerve relationship in wisdom teeth.
Do you have any questions or interest? Please contact us – in our practice at the Ärztehaus am Stuttgarter Platz 1 in 10627 Berlin.