No, milk teeth are generally not yellow. They are typically whiter than permanent teeth.
Why Milk Teeth Appear Whiter
Milk teeth, also known as baby teeth, possess a thinner layer of enamel compared to the permanent teeth that will eventually replace them. This thinner enamel allows more of the underlying dentin to show through. However, this thinner enamel is also naturally whiter than the thicker enamel of permanent teeth. As a result, milk teeth typically appear brighter and whiter.
Comparison with Permanent Teeth
When permanent teeth start to erupt, they may seem slightly yellow compared to the remaining milk teeth. This difference in color is not due to the milk teeth being yellow, but rather the permanent teeth having a thicker, less white enamel. As mentioned in the reference, "Your child's permanent teeth may look slightly yellow compared with the baby teeth that still remain in their mouth". This difference in shade can be especially noticeable during the transitional phase of mixed dentition.
Key Differences Summarized
Here's a table summarizing the color differences:
| Feature | Milk Teeth (Baby Teeth) | Permanent Teeth |
|---|---|---|
| Enamel Thickness | Thinner | Thicker |
| Enamel Color | Whiter | Less White/Slightly Yellow |
| Overall Appearance | Brighter, Whiter | May appear less white in comparison |
Factors Affecting Teeth Color
While milk teeth are typically whiter, several factors can influence the perceived color of any tooth:
- Diet: Certain foods and drinks can stain teeth, temporarily affecting their color.
- Oral Hygiene: Poor dental hygiene can lead to plaque buildup, which may contribute to discoloration.
- Genetics: Inherited traits can also impact the natural shade of one's teeth.
- Medications: Certain medications can lead to tooth discoloration.
In conclusion, milk teeth are usually whiter due to their thinner, naturally brighter enamel, and may be contrasted by the slightly yellow color of permanent teeth, as explained by the reference.
