# Dental atlas attribution

`dentition-v2.glb` is a derivative distributed under [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/).

- **Z-Anatomy — The libre 3D atlas of anatomy — CC BY-SA 4.0**; Gauthier Kervyn (anatomy/design), Marcin Zielinski (Blender), and contributors.
- **BodyParts3D — The Database Center for Life Science — CC BY-SA 2.1 Japan**; Kousaku Okubo and contributors.
- [Upstream source and attribution](https://github.com/Z-Anatomy/Models-of-human-anatomy/blob/master/License.txt).
- [BodyParts3D](https://dbarchive.biosciencedbc.jp/en/bodyparts3d/download.html).

Adapted in September 2026 from the repository's attributed `human-body-overview-v20.glb`: extracted 28 teeth and upper/lower gingiva; baked original placement, centered/rescaled, subdivided surfaces, separated gum islands, and added subtle vertex-colour variation. Original source remains unchanged. No third-party inner-ear or kidney models are included.

Source hash, per-tooth provenance, vertex/triangle counts and output size are recorded in `dentition-v2.json`. Rebuild with `src/resources/biology/teeth-explorer/tools/build-dental-assets.mjs` from the repository root. Runtime enamel/gum materials and studio reflections are newly authored. Anatomical left/right are the subject's own sides. The source does not contain wisdom teeth.

`tooth-anatomy-v3.glb` is a separately authored educational tissue model,
generated by `tools/build-tooth-anatomy.mts` in this resource. Its internal
tissues are not extracted from Z-Anatomy, CT data or a patient scan. Shapes,
thin layers, colours and surface detail are illustrative. Anatomical references:
[ADA](https://www.mouthhealthy.org/all-topics-a-z/tooth) and
[University of Leeds Histology](https://histology.leeds.ac.uk/home/oral/mouth/).