| A | B |
|---|
| the most common dental problem in teenagers | dental caries |
| plaque contains sugars and starches that react with some foods and form | acids |
| the main cause of tooth loss in adults | gum disease |
| helps remove plaque | brushing and flossing teeth |
| a dentist who treats malocclusion | orthodontist |
| cause vibrations in the air which produces sounds | sound waves |
| sends impulses which the brain interprets as sound | auditory nerve |
| sudden, loud noises or loud noises that continue for a long period of time can cause | hearing loss |
| germs from the nose and throat can pass into the | middle ear |
| vibrations of this causes three tiny bones in the ear to move | eardrum |
| carries impulses to the vision center of the brain | optic nerve |
| the largest organ in the body | skin |
| cannot see objects that are far away clearly | nearsightedness |
| cannot see objects that are close clearly | farsightedness |
| helps light to focus properly on the retina | lens and cornea |
| light focused on this causes vision to occur | retina |
| this on the skin causes perspiration odor | bacteria |
| causes harm to the skin | overexposure of the sun |
| numbers on sunscreens that tell you how much protections they give | SPF numbers |
| helps maintain body alignment | good posture |
| a person's body uses less energy during this state | sleep |
| a series of menta pictures that form during sleep | dreams |
