# Bristle Shape Notes
> Bristles come in many shapes and stiffnesses. A guide to what the shapes are meant to do and which are worth paying attention to.

## Guides
- [Tapered Bristles: Common Questions](https://types-of-toothbrush-bristles.pages.dev/tapered-bristles-gumline/): Tapered bristles narrow to a fine tip, and brands often promote tapered bristles at the gumline as a way to reach where the tooth meets the gum.
- [Crisscross Patterns: What to Know](https://types-of-toothbrush-bristles.pages.dev/crisscross-bristle-patterns/): Crisscross bristle patterns are tufts set at opposing angles so they form an X shape when viewed from the side.
- [Charcoal-Infused Bristles: Common Questions](https://types-of-toothbrush-bristles.pages.dev/charcoal-infused-bristles/): Charcoal infused bristles are nylon filaments mixed with charcoal, which gives them a dark color and a marketing story.
- [Nylon vs Natural Bristles](https://types-of-toothbrush-bristles.pages.dev/nylon-vs-natural-bristles/): Most mainstream toothbrushes use nylon (synthetic) filaments, while natural bristles come from animal hair and are rarer.
- [Head Size and Fit](https://types-of-toothbrush-bristles.pages.dev/head-size-and-fit/): Head size and fit decide whether a brush can reach your back teeth and sit comfortably against the gumline.

## About
- [About Bristle Shape Notes](https://types-of-toothbrush-bristles.pages.dev/about/): not medical advice, how the site is funded and how guides are made

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