What is Digital OPG?
- An OPG which refers to ORTHOPANTOGRAM , provides a panoramic look of the mandible and teeth.
- It is done by applying a technique known as “tomography”.
- The X-ray tube goes over the head, the x-ray film goes in the opposite direction behind the head.
- This promotes an image slice in which the mandible and teeth are under care, and the various structures are blurred.
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Anatomy
The anatomy includes the following parts of the body, that are:-
- Aramus and angle of mandible.
- Coronoid process.
- Mandibular notch
- Condyle of mandible.
- Alveolar ridge.
- Symphysis menti.
- Maxillary sinuses.
- Nasal fossae, 16 upper and 16 lower teeth.
Palmer Notation
- The mouth is classified into four sections known as quadrants upper as well as lower right quadrant and upper as well as lower left quadrant.
- The numbers 1 through 8 are applied for labeling each of
the teeth in all kinds of four quadrants. - The numbering varies from the middle of the mouth to the back.
- In Adults they have 32 teeth.
- Teeth ordered 1and 2 in each quadrant are called incisors.
- The third tooth is referred to as canine.
- Numbers 4 and 5 are referred to as premolar.
- Numbers 6,7 and 8 are referred to as molars.
- The 8th tooth also known as 3rd molar are normally called wisdom teeth.
- Pediatric OPG presenting the adult teeth at the top of the gum line.
Reasons for OPG requests
Dental Disease
– Caries – visible as different shaped kinds of radiolucency located in the crowns and necks of teeth.
– Periodontitis – these occurs due to the inflammation expands into the underlying alveolar bone as well as there is a reduction of attachment.
– Periodontal Abscess – Radiolucent area revolve around the roots of the teeth.
– Extraction of teeth for eg- wisdom teeth.
– OPG presents angulation/ shape of roots/ area and shape of crown/ damage on other teeth.
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Transplant workup
- To appear for evidence of any underlying dental disorders for example- abscess.
- Patients on steroids later the transplant are immunosuppressed as well as the mouth is a common site of damage.
X-ray detectors consists of the following:-
- High resolution scintillator technologies and standardized Ethernet connectivities.
- Obtaining pictures to be ported simply to a computer for processing.
- Passing through a hard radiation sensor fabrication procedure to ensure its longevity and picture quality which is immune for X-ray radiation degradation across time.
- This means a person will be eligible to acquire the exactly high qualified images over and over, and receive consistent results around the lifetime of one’s modality.
- Detector also applies the trending advancements in MEMS technology to support the typical gaps between individual picture sensors in assembly near the default pixel size.
- This also advantages detectors in terms of planarity, which means the exact high image is qualified and maintained throughout the entire field of look of the detector.