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Clinical photography in orthodontics: the standard views, consistency and common errors

Key points

  • Photographs are an essential part of the orthodontic record. Taken before, during and after treatment, they let sets from different times be compared.
  • The usual set has four extraoral views (frontal at rest, frontal smiling, profile and three-quarter) and six intraoral views (frontal, right and left buccal, upper and lower occlusal, and overjet).
  • In general terms, the equipment is a camera with a macro lens and a flash, cheek retractors and occlusal mirrors.
  • Consistency matters more than any single photograph: the same views, framing, head position and light at every visit.
  • Common errors can be avoided. Training and a set routine help.

Why photographs are part of the record

Sandler and Murray describe photographs as an essential part of the clinical record in orthodontics [1]. McKeown, Murray and Sandler describe photographs taken before, during and after treatment as part of the records, and note that poor-quality photographs can misrepresent the starting situation or the progress of treatment [2]. Sandler and Murray also describe digital photography for orthodontic records [3].

A photograph shows the patient only as the camera saw them. The position of the head, the angle and distance of the camera, and the light all change the picture. This is why the views are standardised: the same view, taken the same way, can be compared from one visit to the next.

The extraoral views

Four views of the face are usual:

For all four, the head is level and in a natural position, the camera is at the height of the patient’s eyes, the background is plain, and the face is framed the same way each time. Hair is kept away from the face, and glasses are taken off.

Four framed panels with simple head outlines, no faces. Frontal at rest: an oval with a dashed vertical midline and a dashed horizontal eye line. Frontal smiling: the same, with a short curved line low in the oval for the smile. Profile: a side outline of a head facing right with a dashed vertical line. Three-quarter: an oval with the dashed midline moved toward one side. Frontal at rest Frontal smiling Profile Three-quarter
Figure 1. The four extraoral views as simple outlines. Dashed lines: the facial midline and the eye line, which stay level and centred from one visit to the next. Schematic; not drawn from photographs.

In the Studio, Simplified Face uses three of these views: “Frontal at rest, frontal posed smile and profile”. Its landing page says to take the photos “with the camera at eye height”, and that “Photo measurements depend on head position, camera distance and calibration.” A photo is calibrated from the iris, the pupil distance, or a ruler held at the face. Face has no three-quarter view and does not measure intraoral photographs. Simplified Practice keeps photographs in record sets “with frames for extraoral and intraoral photos”.

The intraoral views

Six intraoral views are usual:

Six framed panels with simple tooth shapes. Frontal: an upper and a lower row of teeth with a dashed midline. Right buccal and left buccal: side rows of teeth that get larger toward the front. Upper occlusal and lower occlusal: teeth placed along a U-shaped arch. Overjet: an upper incisor in front of a lower incisor, seen from the side, with a short arrow between them. Frontal Right buccal Left buccal Upper occlusal Lower occlusal Overjet
Figure 2. The six intraoral views as simple shapes. The buccal views are drawn with the front teeth toward the middle of the figure. Schematic; not drawn from photographs.

In the Studio, Simplified Practice keeps intraoral photographs in the frames of each record set. On the Plus and Pro plans, its printing includes “Photo composites”.

Equipment, in general terms

This article gives no camera settings. Whatever settings a clinic uses, keeping them the same from one visit to the next is what makes the photographs comparable.

Keeping views consistent between visits

Sandler and colleagues compared clinical photographs taken by orthodontists, professional photographers and orthodontic auxiliaries. The orthodontists produced more good-quality intraoral photographs, and the study points to training and a set routine [4].

Consistency comes from doing the same things in the same order:

The same frontal intraoral schematic three times. Level: the biting plane is horizontal and the midline is centred. Tilted: the whole picture is rotated, so the biting plane slopes against the frame. Off-centre: the teeth are shifted to one side, so the midline is not in the middle of the frame. Level, centred Tilted Off-centre
Figure 3. One view, taken three ways. Blue: the biting plane. Dashed: the middle of the frame. Two tilted or off-centre photographs can suggest a change that is only in the camera. Schematic.

Common errors

McKeown, Murray and Sandler describe common errors in clinical photography and how they can be avoided [2]. Some examples of what goes wrong:

Storing and labelling photographs

Photographs are one part of the record set described in Orthodontic records: what a complete set contains.

In the Studio, Simplified Practice keeps record sets and says: “Add a new set at each stage.” Where Practice keeps the records, in the words of its landing page: “In this browser on this device. If you sign in, a copy is also kept in your private Studio cloud, so your records open on your other devices. When you are signed in, a short list of the next 14 days of appointments is also sent to our server for reminders. If you use patient messages, they are kept on the Studio server.” The privacy policy adds: “Without an account, everything you enter stays on your device and nothing clinical reaches us.”

Consent

Consent and record-keeping rules depend on the country and the clinic, and this article does not cover legal requirements. Using a patient’s photographs outside their record, for teaching, publication or marketing, needs the patient’s written consent.

Limits

Keep and measure photographs in the Studio

Simplified Practice keeps each patient’s photographs in record sets, with frames for extraoral and intraoral photos, a lateral cephalogram, a panoramic radiograph and documents. Simplified Face measures frontal, smile and profile photographs and shows each value next to its published reference value; every analysis is on every plan, including Free.

Educational content for clinicians and students. This page describes how orthodontic photographs are taken and kept. It does not cover treatment or legal requirements, and it does not replace clinical judgement.

References

  1. Sandler J, Murray A. Clinical photography in orthodontics. J Clin Orthod. 1997;31(11):729-739.
  2. McKeown HF, Murray AM, Sandler PJ. How to avoid common errors in clinical photography. J Orthod. 2005;32(1):43-54.
  3. Sandler J, Murray A. Digital photography in orthodontics. J Orthod. 2001;28(3):197-201. doi: 10.1093/ortho/28.3.197
  4. Sandler J, Dwyer J, Kokich V, McKeown F, Murray A, McLaughlin R, O’Brien C, O’Malley P. Quality of clinical photographs taken by orthodontists, professional photographers, and orthodontic auxiliaries. Am J Orthod Dentofacial Orthop. 2009;135(5):657-662.

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