Resting photo vs dynamic photo: what is the difference

There is a frequent confusion in documentation: calling any photo from the front a "frontal photo," without saying whether the patient was relaxed or making a face. For assessment, these are two different records, answering different questions. The resting photo says what the skin and volume are like when the muscle is not acting. The dynamic photo says how the face behaves when the muscle acts.

This page explains when to use each one, how to ask for the expression, how to label the file and how not to compare one with the other by mistake.

What does each photo answer?

The resting photo answers questions about what is fixed: folds that remain without contraction, volume, symmetry in a neutral state. This is what is known as a static wrinkle. The dynamic photo answers questions about what depends on movement: where the dynamic wrinkle appears, how strong the contraction is, whether there is movement asymmetry between the sides.

For the resting photo, a neutral expression is the standard. For the dynamic photo, the standard is a clear, repeatable command.

When is the dynamic photo really needed?

Not always. In a session focused on volume (lips, cheekbone, chin), the resting photo and the documentation views are enough. The dynamic photo makes a difference when:

• the concern is expression lines (forehead, glabella, outer corners of the eyes);
• there is movement asymmetry (one eyebrow rises more, one side of the smile lifts more);
• planning involves botulinum toxin and the contraction pattern needs to be mapped;
• it is a follow-up visit to assess the effect of a previous toxin treatment.

Details on the expressions are in dynamic photos for botulinum toxin, photo of the glabella in contraction and photo of the forehead with raised eyebrows.

How to ask for the right expression?

The command changes what the photo shows. "Make an angry face" produces different expressions in each patient, or on each day. Prefer short, descriptive commands that are always the same:

Take two photos of each expression and record the best one. If the expression differs in the follow-up photo, the comparison loses its meaning. A useful option: record a short video and then extract the peak frame, as in video to assess facial dynamics, always with consent for clinical video.

How to organize and label the files?

The file name should say what the photo is: resting or the type of expression. Mixing everything in a "frontals" folder means that six months later nobody knows whether the frown in a photo was the resting state or a contraction. A simple pattern:

• patient_frontal_resting_date
• patient_frontal_raised-forehead_date
• patient_frontal_frowned-glabella_date
• patient_frontal_maximum-smile_date

More on this in naming clinical photo files. And keep in mind that a forced smile tends to mislead the record, as shown in photo with a forced smile that misleads.

How to handle a patient who cannot relax?

Many people tense up in front of the camera. The forehead lifts, the lip tightens, the eyes squint. Some practical strategies:

• talk about something else for a minute before starting;
• ask them to close their eyes, breathe deeply and open them slowly;
• take the photo as they exhale, without a countdown;
• repeat if needed and choose the most faithful one;
• explain that the resting photo is only for the record.

Standardizing photos between visits depends on repeating this ritual, not on a single photo.

How does the resting photo relate to planning?

The resting photo is the one that serves as the basis for the planning conversation and, in general, for the simulation. When the patient understands that the frontal photo used in planning is the resting one, expectations of a natural look line up. See one frontal photo for planning for what the image needs to have.

What mistakes to avoid?

• Saving resting and dynamic photos without labels.
• Comparing a resting before photo with a dynamic after photo.
• Using different commands at each visit.
• Accepting a "resting" photo with a contracted forehead.
• Asking for an exaggerated expression and using that photo as the main one.

Two photos, two questions and two names: that is the standard that keeps the chart readable years later.