How many permanent teeth does an adult human have?
20
30
32
24
The organisms that can only be seen with a microscope is called ________ .
Microbes
Living things
Non-living things
None of these
What is the part of the tooth that you can see above the gum?
Crown
Enamel
Dentine
Pulp
_______ is the hardest substance in our body.
Canine
_________ are the smallest microbes.
Bacteria
Protozoa
Viruses
Fungi
The substance produced by germs, which harm the enamel is ___________ .
Alkali
Acids
________ are the most abundant microbes on the earth.
The type of tooth which is sharp, pointed, and is made to help tear food.
Incisor
Molar
Premolar
The part of the tooth that is inside the gums is called the ________.
Root
The teeth in front of the mouth and used for cutting is _________ .
Molars
Canines
Incisors