The Invisible Tooth

By Kay Hisano | Dated December 20, 2025

Toshi, a 1-year-old Domestic Longhair, came in recently for her routine vaccination. During her examination, Dr. Zoe noticed significant gum inflammationm thickening around one of her upper premolars, and the area was sore to touch, so we recommended a closer look under general anaesthesia.

Once asleep, it became clear that the loose tooth present was actually Toshi’s retained baby premolar, which should have fallen out as her adult teeth came in. After removing this tooth, we took dental radiographs to check the underlying structures. The X-rays showed that Toshi’s adult premolar was still buried deep under the gum (see blue circle below) and had never erupted, which explained her discomfort and inflammation.

Dr Zoe was able to carefully remove the unerupted tooth, and Toshi recovered very well for her general anesthetic. Toshi’s case highlights how important dental radiographs are. Even with a thorough visual exam, only about half of dental problems can be seen without X-rays. Radiographs allow us to identify hidden issues early and treat them before they cause pain.

If you’re unsure about your pet’s dental health, we’re always happy to assess and guide you.