Panoramic radiography has many advantages including
short time for the procedure, greater patient acceptance and cooperation
, overall coverage of the dental arches and associated structures (more anatomic structures can be viewed on a panoramic film than on a complete intraoral radiograph series), simplicity, low …
What is the purpose of panoramic radiograph?
Panoramic radiography, also called panoramic x-ray, is a two-dimensional (2-D)
dental x-ray examination that captures the entire mouth in a single image, including the teeth, upper and lower jaws, surrounding structures and tissues
.
Which conditions are panoramic radiographs used to evaluate?
A periapical or panoramic examination is useful for evaluating
dental development
. A panoramic radiograph also is useful for the evaluation of craniofacial trauma. may have the advantage of reduced radiation dose, cost and imaging of a larger area.
Who is the father of panoramic radiography?
While several individuals experimented with early attempts at panoramic radiography,
Yrjö Veli Paatero
, a Finnish dentist, is typically credited as the “father of panoramic radiography.” The first commercially manufactured panoramic radiography unit in the United States, the Panorex, was introduced in 1959.
What is a disadvantage of panoramic radiographs?
Greater ease and less time necessary to produce a single image representing the patient’s entire dentition. The disadvantages of panoramic radiographs relate to these weaknesses: …
Magnification, geometric distortion, and overlapped images of teeth sometimes occur
.
When do you take a panoramic radiograph?
Patients who have impacted teeth
, particularly impacted wisdom teeth, are usually ordered to take panoramic x-rays for evaluation of the affected teeth. Those with gum diseases, deep cavities, TMJ problems and facial or teeth trauma are encouraged to have it done as well.
What do Bitewings show?
Bitewing X-rays show
details of the upper and lower teeth in one area of the mouth
. Each bitewing shows a tooth from its crown (the exposed surface) to the level of the supporting bone. Bitewing X-rays detect decay between teeth and changes in the thickness of bone caused by gum disease.
Can a panoramic be used instead of a FMX?
Panoramic Films
A panoramic X-ray is one that encircles the mouth from one side to the other, showing the entire mandible, TMJ, upper jaw and nasal sinuses. They’re
not as sharp and detailed as an FMX
, but are able to show anatomy around the teeth that isn’t visible in a full mouth series.
What is the name of the area of sharp focus in panoramic radiography?
Panoramic Theory
The patient’s dental arch must be positioned within a narrow zone of sharp focus known as
the “focal trough”/imaging plane
(Figure 2), de- signed by panoramic machine manufacturers as the ideal patient position to produce the optimum image.
At what age should an FMX be taken?
Panoramic and FMX
Panoramic and FMX’S are full mouth X-rays. These are super important to take starting at
age 5
, because they’ll give us an inside look at the adult teeth that are coming in! These X-rays are typically taken about once every 3 to 5 years so we can track the growth of your child’s teeth.
How many types of panoramic units are there?
There are
two standard sizes
for dental panoramic films: 30 cm × 12 cm (12′′ × 5′′) and 30 cm x 15 cm (12′′ × 6′′). The smaller size film receives 8% less X-ray dosage on it compared to the bigger size.
What is panoramic ultrasound?
Panoramic ultrasound is
a technical modification of conventional ultrasound that produces images with a large anatomic field of view
. Images obtained with this technique display both lobes of the thyroid gland on a sin- gle image, and provide an accurate imaging representation of a variety of thyroid disorders.
Why are Bitewings taken?
Bitewings show teeth above the gum line and the height of the bone between teeth. Bitewings
help diagnose gum disease and cavities between teeth
. The bitewing X-ray is placed on the tongue side of your teeth and held in place by biting down on a cardboard tab. Normally four bitewings are taken as a set.
Why is it called bitewing?
These X-rays are called bitewing
because the paper or plastic tab attached to the film that you bite down on allows the film or digital sensor to hover between your bite in a similar fashion to an airplane wing
.
What’s considered an FMX?
An FMX is
a series of 18-20 x-rays
, which includes all 4 bitewings and PA’s of every tooth. It allows a comprehensive look at every tooth, and is especially useful if there are multiple teeth with problems to diagnose.
