Ala Tragus Line Panoramic

An imaginary plane or line from the ala of the nose to the tragus of the ear.

Ala tragus line panoramic. The panelipse panorex i and panorex ii use the ala tragus line for patient positioning. If the tragus is positioned above the tragus the hard palate will appear as a thick opaque horizontal opacity above over the apices of the maxillary anterior teeth and premolars. Focal trough layer that area between the x ray source and the image receptor that will be imaged distinctly on the panoramic. Pc1000 forwayne indiana usa range capability of 70 to 90 kv at 10 ma for 0 4 to 5 0 seconds.

The roots of the anterior teeth are in the image and the posterior teeth are the same size on each. This position is often referred to as the patient being positioned with the ala tragus line in a minus 50 position. The cone film distance used was 5 feet. Exposure was 80 to 90 kv at 10 ma for 1 5 to 2 seconds in accordance with the subject s physical.

Here the occlusal plane should be mildly curved upward to make a smile like line. Ala tragus line is one of the common extra oral soft tissue land mark utilized in dental clinics for occlusal plane orientation. The ala tragus line as a guide for orientation of the occlusal plane in complete dentures 1carole abi ghosn 2carla zogheib. At the same time this position allows the ala tragus line to be correctly positioned.

Download pdf 1mb sizes 0 downloads 9 views. An imaginary plane or line from the orbital ridge to the acoustic. Ikfanson hing university of alabama scho. In other words the ala of the nose should be slightly inferior to the height of the tragus.

Focal trough layer the area between the x ray source and the image receptor that will be imaged distinctly on the panoramic radiograph. White philadelphia pennsylvania in addition to the ala tragus line uses an occlusal plane line on the cassette carrier for patient positioning. The horizontal plane in patient positioning for panoramic radiography j. Important in determining the correct position of the patient s head.

Pate b d s m s and l. Newer machines have horizontal linear lights that should be placed parallel to the frankfort plane orbito meatal plane. The part of a panoramic x ray machine where the cassette is positioned for exposure. Discussion most panoramic x ray machines use the ala tragus line for patient positioning whereas a few use the orbito meatal line.

The smile line will also be lost. An imaginary plane or line from the ala of the nose. The angle between this line and the horizontal plane is 3on the panorex and 4on the. Tragus of the ear must be aligned with the plastic guides ala tragus line should be 50 from level positioning the patient position the patient panoramic lead apron must be used position apron high in front to protect the thyroid apron should be lower in back to expose the neck.

Notice the panoramic image is divided into 9 areas that make up the 6 zones that you must learn to picture each panoramic radiograph or image in your mind s eye. To achieve the correct vertical angulation the head must be positioned upright and symmetrical with the ala of the nose just inferior to the height of the tragus. The part of a panoramic x ray machine where the cassette is positioned for exposure.