How CBCT Scan Help in Implants?
In cases where regular x-rays are not sufficient, CT is often used. Your oral surgeon is able to obtain a 3-D image that is very useful for dental implants using cone beam imagery.
Cone Beam CT in Comparison with Standard X-rays
A regular tooth or facial x-ray provides the oral surgeon with a two-dimensional picture to determine whether dental implants are being placed. The surgeon can get a much more realistic and detailed picture with the three-dimensional image from the cone beam CT while deciding with about dental implants. This 3D imagery also contributes to a more accurate placement of implants. It is easy to ask why cone beams are not always utilized in dental care, as they give a clearer picture. This is because the dose of cone beam CT is higher. Our office takes care to make sure that your cone beam CT is safe. A high dose simply does not have to be used regularly. The cone beams are very useful, however, and very secure when dental implants are correctly, safely and accurately placed.
CBCT scans produce much like the panoramic picture very quickly. No inconvenience to the patient actually happens from a panorama picture except that a CBCT machine is not so common and the patient may need to drive to the location where the patient is present when one is not readily available. Increased financial costs and an increased radiation dose are the main negative effects of CBCT compared to standard dental radiography. The costs of CBCT scans vary, given the large difference between the costs of the machines producing these scans.
The benefits must outweigh the risks to justify use of CBCT. As these risks are minor, it would probably outweigh and be prudent if producing a CBCT scan is beneficial for your patient. These advantages can be improved by therapy or a reduction in therapeutic risk. Unfortunately, complications are common in implant dentistry and can range from minor to serious. Implant malposition is one of the most frequent complications in implant dentistry. This can lead to a variety of complications: fenestration, dehiscence and recession, difficult rehabilitation, poor biomechanics, interproximal structural loss, damage to adjacent anatomies etc. The damage to the lower alveolar nerve is one of the most serious complications. In 13% of the mandibular implant placement treatments and 3% of the time the damage was permanent. While these numbers are not frequent, it is alarming that the numbers exceed 1% in a fully avoidable situation.
There is a particular situation in which the risk of complication and CBCT scans mitigates that risk. Maybe a questionable amount of nodules in the oral-face dimensions is the clearest sign for a CBCT scan. An implant site ideally has a minimum of 7 mm in size: 2 mm in the face plate, 4 mm in the implant and 1 mm in the palatal or lingual plate. Of course, some cases will exceed these amounts, while others are clearly not, and some are questionable.
The angulation of the alveolar bone, presence of undercuts, the position of the maxilla or the nasal floor and neurovasculature position are further factors of osseous anatomy which can only be demonstrated through the CBCT scan. Although CBCT can properly capture these areas in three dimensions, it asks that we compare this benefit with the potential gains from radiographic examinations with fewer risks. The decision-making process is a recent study compiled a panoramic radiograph or a CBCT scan for measuring the vertical bone height of the rear mandible. The measures were taken from the alveolar crest to the ceiling of the lower alveolar channel and they were shown to be extremely similar and to be less than 1 mm variable. Their panoramic images were calibrated and captured. In addition, the same does not apply to periapical pictures in which there can be much greater inaccuracy.
Contact us at Oral and Facial Surgery of Oklahoma for dental implants in OKC.
**Disclaimer: This site content is not intended to be medical advice nor establishes a doctor-patient relationship.
Comments are closed.