Gum appearance in a photo

What the camera is looking at

Gum Appearance reads the visible margin where gum meets tooth: colour relative to the surrounding tissue, and contour — whether the margin looks tight and scalloped or fuller and rounded.

In an Advanced Check-in this is graded per region (anterior, upper arch, lower arch, and both buccals) rather than averaged. That matters, because gum appearance is rarely uniform — a single low region is a completely different picture from a low average.

Why it's the best first target

Interdental cleaning changes what the gum margin looks like within about two weeks for most people. Compared with brightness — months — that is an extremely fast feedback loop.

Fast loops are what keep people in a habit. If you want proof that thirty seconds a day does something, this is the dimension that will give it to you first.

What shifts it

• Interdental cleaning — floss, picks, or an interdental brush, once a day, every gap. Technique matters less than consistency.
• Brushing angle. Angled into the gum margin, not scrubbed across the middle of the tooth. Most people brush the part that was already clean.
• Pressure. Harder is worse. Excessive force changes the margin in the wrong direction.
• Time. The full two minutes, twice. Not negotiable and not replaceable by a better brush.
• Things outside your control — hormonal changes, some medications, smoking. Worth knowing, so you don't read a plateau as personal failure.

Where the photo stops

This is the dimension where the gap between what a camera sees and what matters is widest.

• Pocket depth — the measurement a hygienist takes with a probe — is invisible to a photo. It is also the measurement that matters most clinically.
• Bone level is invisible without an X-ray.
• Recession is partly visible but easy to misjudge between photos taken at different angles.
• Bleeding on probing — the signal professionals actually use — cannot be captured by a still image at all.

So: use the trend to know whether your routine is landing. Use a dentist to know whether anything needs attention. These are different questions and ToothPal only answers the first.

Reading the trend

1. Look at regions, not the average, if you have Advanced Check-ins. One region moving alone is the most useful signal the app produces.
2. Give any change three scans before you believe it.
3. A dip after starting to floss is common and usually settles. Don't stop on the strength of one reading.
4. Persistent, one-sided change that doesn't recover is the classic 'book an appointment' pattern.

Questions