Tooth enamel is the first line of defense your teeth have against plaque and cavities. It is the white, visible part of the tooth and it is also the hardest part of the human body.
Answer and Explanation: Tooth enamel is a substance in the body that is harder than bone. Enamel is the shiny, white coating on the outside of a tooth, and is extremely damage-resistant.
The femur and temporal bones of the skull are the strongest bones in the human body, but the teeth, to be exact, are the hardest parts.
At a level 5, this means your tooth enamel is harder than gold, silver, iron, or steel. Not only that, your tooth enamel is the hardest substance in your entire body. Your fingernails, for example, sit much lower on the Mohs scale, ranking in at 2.5.
Abstract. Tooth enamel is inherently weak, with fracture toughness comparable with glass, yet it is remarkably resilient, surviving millions of functional contacts over a lifetime.
After diamonds, tooth enamel is the second hardest compound in the world. The hardest substance in the body is tooth enamel, your teeth's natural defence system. The only naturally occurring substance harder than tooth enamel is diamond.
The clavicle, or collar bone, is the skin's softest and weakest bone.
Your bones carry that weight every minute of every day as par for the course. Now, consider your teeth. Although paper-thin, the enamel that covers your teeth is much stronger than your bones. In fact, the only substance on earth that is stronger than enamel is diamond.
So why won't teeth heal themselves? When compared to bones – which have plenty of blood vessels running through them – tooth enamel doesn't have any way to get fresh oxygen and nutrients. This means that once it's damaged, your tooth can't repair itself like other parts of your body can.
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 lacrimal bone, the smallest and most fragile bone of the face, is situated at the front part of the medial wall of the orbit . It has two surfaces and four borders.
The hardest bone in the human body is the jawbone. The human skeleton renews once in every three months.
A cubic inch of bone can in principle bear a load of 19,000 lbs. (8,626 kg) or more — roughly the weight of five standard pickup trucks — making it about four times as strong as concrete.
The skin is the body's largest organ.
Ans. The dentin lies beneath enamel and cementum, it's harder than bone but softer than enamel. It being the second hardest tissue and possessing a softer texture than enamel, helps absorb the pressure from chewing.
Diamond is the hardest known material to date, with a Vickers hardness in the range of 70–150 GPa. Diamond demonstrates both high thermal conductivity and electrically insulating properties, and much attention has been put into finding practical applications of this material.
The femur is the longest, strongest bone in your body. It plays an important role in how you stand, move and keep your balance. Femurs usually only break from serious traumas like car accidents.
Your thighbone (femur) is the longest and strongest bone in your body. Because the femur is so strong, it usually takes a lot of force to break it. Motor vehicle collisions, for example, are the number one cause of femur fractures.
Diamonds remain the most scratch-resistant material known to humanity. Metals like titanium are far less scratch-resistant, and even extremely hard ceramics or tungsten carbide cannot compete with diamonds in terms of hardness or scratch-resistance.
Canines. Next to the lateral incisors are our canines, which are the sharpest and longest teeth in our mouths. This enables them to grip and tear food, particularly meat. Unlike incisors, we only have four canines.
Canines. Also known as Cuspids, canines are the sharp, pointed teeth on either side of our incisors. These teeth are used to tear and rip food apart. You have four cuspids in your mouth.