TOPIC: LATERAL OBLIQUE VIEW
🌟IMPORTANT POINTS TO REMEMBER
🔹 The lateral oblique view is one of the most enterprising and satisfactory techniques of having an extraoral view of the jaw.
🔹Size of the cassette used for the lateral oblique view is 5 × 7 in.
🔹The central rays of the beam are directed at –15° to –20° vertical angulations. The beam should be kept perpendicular to the cassette.
🔹Exposure parameters can vary, but it is customary to use 65 kVp, 10 mA and ¼ s for medium-speed screen and film.
🔹For a patient whose intraoral view cannot be taken, it can be a good choice.
🔹Gardener view is the lateral oblique view of the right and left side of the jaws in the same radiograph.
🔹The specific view of the salivary gland or temporomandibular joint imaging can be done with oblique radiography.
📌INDICATIONS OF OBLIQUE RADIOGRAPHY
🔸Lateral oblique radiography is used to assess the presence of unerupted teeth.
🔸Fractures of the mandible can also be imaged in lateral oblique radiography.
🔸The evaluation of lesion or conditions affecting the jaws, including cysts, tumours, giant cell lesion in the site of interest. Intraoral periapical film usually does not give full assessment of third molar. In that case, oblique lateral view is useful.
🔸It is indicated in cases when the extent of lesion cannot be covered completely by intraoral view.
🔸The specific view of the salivary gland or temporomandibular joint imaging can be done with oblique radiography.
📌 TYPES :
🔸 Ramus view: This is a lateral oblique view taken for the ramus of the mandible.
🔸 Body of mandible view: This view is taken for the body of the mandible.
🔸Bimolar view: In this view, both the right and left sides of the mandible are taken in one film.
📌 MULTIPLE CHOICE QUESTIONS (MCQs)
💡Following are the types of lateral oblique views except
- Ramus view
- Body of mandible
- Body of maxilla view
- Bimolar view
Answer: 3
💡Bimolar view is also known as
- Grinspan view
- Gardner view
- Gorlin view
- Guber view
Answer: 2
💡Following are the basic problems in lateral oblique radiography except
- Superimposition of the structure of opposite side of the face
- Superimposition of the cervical spine
- Superimposition of maxillary teeth
- Superimposition of the hyoid bone
Answer: 2