Glencoe Health
Glencoe Health
1st Edition
McGraw-Hill Education
ISBN: 9780078913280
Textbook solutions

All Solutions

Section 13.2: Healthy Teeth and Mouth

Exercise 1
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Periodontal disease refers to the inflammation of the gums and other periodontal structures such as the bone and tissues of the teeth. This is often caused by a bacterial infection and the build-up of plaque in the mouth. The term plaque is used to describe the deposit of bacteria and small food particles that adhere to the tooth.
Exercise 2
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The tissue that contains blood vessels and nerve of the tooth is called pulp of the tooth.
Exercise 3
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Tooth decay starts when the plaque builds up in the tooth. Once the plaque coats the teeth, it seals out the saliva. As a result, the tooth is no longer protected from the bacteria. This results in the break down of the tooth enamel. Eventually, a hole or cavity in the tooth is formed. If the decay spreads down to the pulp of the tooth, an extraction is needed.
Exercise 4
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Sealants are placed on the depressions and grooves of molars and premolars to help protect it from bacteria and acids that decays the teeth. Since the bristles of the toothbrush does not reach the pits, plaques accumulate in these areas and sealants keeps acids and bacteria aways from this areas.
Result
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Sealants
Exercise 5
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Sensitive layers of the teeth are the $textit {root, pulp cavity}$, and $textit {dentin}$. The dentin connects directly to the vessels and the root of the tooth. The pulp cavity has the blood vessels and nerves of a tooth. Once that the dentin is exposed, pain is triggered.
Step 2
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Nonsensitive layer of a tooth is the crown specifically the $textit {enamel.}$ This is a hard substance made up of calcium.
Result
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Sensitive layers of teeth and nonsensitive layer
Exercise 6
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They specialized in root canal problems and diagnosing tooth pain and its management. They are also experts in the interior of the tooth. They remove damaged pulp, clean the root canal, and fill it to prevent reinfection.
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Endodontist
Exercise 7
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Dear brother,

Please brush and floss your teeth regularly because it makes your smile prettier. Having nice and clean teeth will make people know that you have good hygiene. It will also prevent you from having toothaches. Isn’t it nice to eat whatever you like and still have pearly whites? I hope you do it regularly.

Sincerely,

Your sister

Result
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Importance of flossing and brushing teeth
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