Mineralization of enamel
Tooth erosion also known as acid erosion or dental erosion is identified as a process of tooth wear. It is clinically defined as an irreversible loss of tooth structure due to a chemical dissolution of minerals of the tooth by acids which are not of bacterial origin.
The enamel is the outermost protective layer of the tooth. If we don’t protect it, it cannot protect our teeth. There are several ways to strengthen enamel such as diet modifications, avoiding sugar, brushing right, getting rid of bruxism, etc.
Yes, it is safe to swim while you on periods. Period blood doesn't flow outside the vagina like it usually does due to the counter-pressure of the water. But You still need to wear some a tampon or a menstrual cup to avoid getting into a sticky situation.
Resin tooth filling typically contains a filler particle such as quartz, which provides the mixture's strength and color. It is costly as compared to silver tooth filling.
In some cases, the change in period blood color can indicate a health problem like fibroids, low estrogen levels, and even vaginosis.