The hard surfce on the surface of a tooth is enamel.
Labial surface
Basically it is the outer layer of a tooth that can get broken down by grinding your teeth and chewing hard candies.
The hard surface of the tooth is made of enamel which is the hardest tissue in the human body. Tooth enamel has no living cells so unlike a broken or fractured bone the body has no way to repair chipped/cracked enamel.
The root of a healthy tooth has an outside surface called cementum.
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Dentine
The ouside of the tooth is called the Enamel
The entire back surface is called the "lingual" of the tooth.
It is one of the 4 components of the mammalian tooth and is to be found just beneath the hard enamel outer layer or in ridges between ridges of hard enamel. Being softer than the enamel, in herbivores (like the elephant) the dentine wears away faster ensuring that the roughness of the tooth surface is maintained as the tooth itself wears away. In omnivores and carnivores, it mechanically supports the enamel surface and protects the tooth pulp and nerves.
It is one of the 4 components of the mammalian tooth and is to be found just beneath the hard enamel outer layer or in ridges between ridges of hard enamel. Being softer than the enamel, in herbivores (like the elephant) the dentine wears away faster ensuring that the roughness of the tooth surface is maintained as the tooth itself wears away. In omnivores and carnivores, it mechanically supports the enamel surface and protects the tooth pulp and nerves.
tooth enamil I believe enamel is the hard, outer covering of a tooth. The soft inner tissue is called pulp.
A resin one surface anterior is a tooth colored filling on a front tooth.