To test the hardness of a specimen take it and try to scratch it with the first rock in your hardness kit, Talc. If it is scratched then the rock you’re testing is hardness 1. If not then try to scratch the Talc with your rock. If the rock scratches the Talc then it is harder than the Talc.

The strongest muscle based on its weight is the masseter. With all muscles of the jaw working together it can close the teeth with a force as great as 55 pounds (25 kilograms) on the incisors or 200 pounds (90.7 kilograms) on the molars. The uterus sits in the lower pelvic region.

tooth enamel

Absolutely, yes. Drinking milk makes your teeth stronger and protects tooth enamel. It also strengthens your jaw bone, which can help you keep your natural teeth longer, and fights tooth decay. For children, expectant mothers and women in general, milk is especially important.

As long as the bone surrounding the tooth was not broken, it is likely to accept the tooth and be fully healed in six to eight weeks.

Dairy products, such as cheese, yogurt and milk, contain lactic acid and the enamel-fortifying mineral calcium, which strengthen teeth while also whitening them. Chewing on cheese also prompts production of saliva, which washes away staining food particles.

Lactose is sugar, and sugar should be avoided before sleeping. Milk that lingers on your teeth can cause damage. Without brushing your teeth after drinking milk (especially at night before sleeping), the sugar in milk will stay on your teeth. This will lead to cavities and decay.

Drinks before Bed When kids drink juice, chocolate milk or even milk right before bed without brushing their teeth afterward, the sugar in those drinks lingers on the teeth, which can lead to decay and cavities.

A glass of milk (warm or not) can help you sleep more soundly, thanks to a healthy dose of tryptophan and calcium, says Murphy. And more sleep means less next-day cravings. Milk also delivers protein, which helps support muscle strength and growth.

Milk contains components related to the hormone testosterone that may stimulate oil glands in the skin, setting the stage for acne. Karcher has heard similar stories. “I’ve had patients who said they stopped dairy and their acne got better. You can have a totally healthy diet without dairy.