A website called 'Oddity Central' has reported on the craze for crooked teeth 'treatments' in Tokyo: a cosmetic dental procedure that lengthens and sharpens the canines, sometimes with adhesive, non-permanent custom-made artificial teeth, to enhance a feature the Japanese called yaeba.

In Japan vampire-like 'fangs', often caused by the molars pushing the canines forward, are considered cute and attractive. It is said that yaeba gives girls an attractive feline look, while others say it 'makes pretty girls look more approachable'.