Often, a puppy's milk tooth will fall out while eating or playing. Since a pup's tooth is very small, it is often swallowed before an owner notices that it has fallen out. Sometimes there will be a small amount of blood, but usually this is not noticed as well as the pup quickly swallows it as well.
When the teething
process is complete, the Chihuahua will then have 42 permanent teeth.
It is not uncommon for a Chihuahua to have double teeth. This happens when a milk tooth stays in place while the adult canine is erupted. With the milk tooth blocking its normal path, the adult canine will emerge just behind the smaller one. Since this was not the natural path, it it often crooked or slanted off to one side.
This can often be avoided by examining the mouth every week, beginning at the age of 3 months until teething is complete. If spotted early enough, the very small (and lightly rooted) milk tooth can easily be removed by an experienced veterinarian. Once it has been extracted, the larger adult tooth will generally move back into its proper place as it continues to emerge.
Many owners wonder what type of bite set the Chihuahua breed should have. In the U.S., per AKC breed standards, the Chihuahua may have either a scissors bite or a level bite.
- A scissor bite
is one in which the incisor teeth in the upper jaw are in contact with but slightly overlap those in lower jaw
- A level bite
is very similar; however the incisor teeth meet exactly, surface to surface. The upper incisors will not overlap those in the lower jaw even slightly.
While both are acceptable bite for the breed, it should be noted that dogs that have a level bite are prone to more dental problems. The reason for this is because with a level bite, the teeth tend to wear down more quickly.
These Chihuahua will need to be monitored more often than those with a scissor bite; though both do require at-home dental brushing and at-home or professional scrapings.