Your dentist asked for a panoramic: one image of the whole mouth, and it is almost never taken in the same room

The practice calls it five different things. Panoramic, panoramic radiograph, orthopantomogram, OPG, panorex. Which word you use changes where you find it on a price list, and none of the five will be taken by your dentist in their own chair.

What does it capture, and how is it different from the small X-rays?

The RSNA reference on panoramic radiography describes it as capturing images of the entire mouth in a single shot, including the teeth, the upper and lower jaws, and the surrounding structures and tissues. The technical difference from intraoral X-rays is where the detector sits: intraoral films go inside the mouth, while the panoramic detector is built into the machine.

That difference is why a panoramic does not replace a bitewing X-ray, or the other way round. One shows the whole map, the other shows the detail of a sector. The dentist decides which is needed for what they are treating.

Why does the dentist ask for it?

• To plan treatment for dentures, braces, extractions and implants, per the same reference.
• To evaluate impacted teeth, including wisdom teeth.
• To look at advanced periodontal disease.
• To have a baseline image before referring you to a specialist, which is where this errand most often gets lost.

How long does it take and what happens during the shot?

RSNA describes an exposure that generally lasts 12 to 20 seconds, during which the X-ray tube rotates in a semicircle around the patient's head. You are asked to stay very still while the rotating arm travels around the perimeter of your head. The whole visit, registration included, is among the shortest there is.

Before the shot you remove all jewellery, glasses and metal objects that could interfere with the X-rays, and you are given a lead apron. If you are pregnant, say so: the reference notes that precautions must be taken to minimise radiation exposure.

Why does this order fall through so often?

For a purely logistical reason. Your dentist works in one place and the panoramic is taken in another, so the medical order turns into an extra trip nobody coordinates. The patient leaves with the paper, intends to go that week, and the next appointment gets rebooked because they arrive without the image.

When a case goes beyond what primary care resolves, the technical guidance for Chile's GES oral health strategy describes referral to the secondary level, with a specialist request form and a specialty waiting list. A missing image stalls that whole referral.

Some dental clinics run this follow-up themselves and write to the patient until the image arrives. Ask at yours whether they work with Surface.