Teeth are essential structures in the human mouth, consisting of four main types: incisors for cutting, canines for tearing, premolars for crushing, and molars for grinding. Each tooth has three layers: the outer enamel, the middle dentin, and the inner pulp, which contains nerves and blood vessels. Adults typically have 32 permanent teeth, arranged in two arches—upper and lower—that work together for chewing, speaking, and maintaining facial structure. Proper care, including brushing twice daily, flossing, and regular dental check-ups, helps prevent decay, gum disease, and tooth loss. Good oral hygiene not only supports overall health but also enhances appearance and confidence.
Table of contents
- Part 1: Create a teeth quiz in minutes using AI with OnlineExamMaker
- Part 2: 20 teeth quiz questions & answers
- Part 3: Automatically generate quiz questions using AI Question Generator
Part 1: Create a teeth quiz in minutes using AI with OnlineExamMaker
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Part 2: 20 teeth quiz questions & answers
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1. What is the primary function of incisors?
A) Grinding food
B) Tearing and cutting food
C) Crushing and grinding food
D) Holding and gripping food
Answer: B
Explanation: Incisors are the front teeth designed for biting and cutting food into smaller pieces.
2. How many permanent teeth does an adult human typically have?
A) 20
B) 28
C) 32
D) 36
Answer: C
Explanation: Adults typically have 32 permanent teeth, including incisors, canines, premolars, and molars.
3. What type of teeth are used for grinding and chewing?
A) Canines
B) Incisors
C) Molars
D) Premolars
Answer: C
Explanation: Molars are located at the back of the mouth and have a flat surface for grinding food.
4. Which tooth is also known as the “eye tooth”?
A) Incisor
B) Canine
C) Premolar
D) Molar
Answer: B
Explanation: Canines are sometimes called eye teeth due to their position under the eyes.
5. What causes tooth decay?
A) Excessive brushing
B) Bacteria breaking down sugars into acids that erode enamel
C) Drinking too much water
D) Eating too many vegetables
Answer: B
Explanation: Bacteria in the mouth feed on sugars and produce acids that damage the tooth enamel, leading to decay.
6. How often should you brush your teeth to maintain oral hygiene?
A) Once a day
B) Twice a day
C) Three times a day
D) Only after meals
Answer: B
Explanation: Brushing twice a day helps remove plaque and prevent gum disease and tooth decay.
7. What is the hard, outer layer of a tooth called?
A) Dentin
B) Pulp
C) Enamel
D) Cementum
Answer: C
Explanation: Enamel is the toughest substance in the human body and protects the inner layers of the tooth.
8. Which vitamin is essential for healthy teeth and gums?
A) Vitamin A
B) Vitamin C
C) Vitamin D
D) All of the above
Answer: D
Explanation: Vitamin A supports enamel formation, Vitamin C aids gum health, and Vitamin D helps absorb calcium for strong teeth.
9. What is the purpose of dental floss?
A) To whiten teeth
B) To remove plaque between teeth
C) To strengthen enamel
D) To freshen breath
Answer: B
Explanation: Flossing cleans areas between teeth that a toothbrush can’t reach, preventing plaque buildup.
10. How many baby teeth does a child typically have?
A) 10
B) 20
C) 28
D) 32
Answer: B
Explanation: Children usually have 20 primary teeth, which are replaced by permanent teeth as they grow.
11. What is gingivitis?
A) A cavity in the tooth
B) Inflammation of the gums due to plaque
C) A type of tooth alignment issue
D) A whitening procedure
Answer: B
Explanation: Gingivitis is the early stage of gum disease caused by plaque accumulation along the gumline.
12. Which part of the tooth contains nerves and blood vessels?
A) Enamel
B) Dentin
C) Pulp
D) Crown
Answer: C
Explanation: The pulp is the innermost part of the tooth, housing nerves and blood vessels that provide sensation and nutrients.
13. What is the recommended age for a child’s first dental visit?
A) 6 months
B) 1 year
C) 3 years
D) 5 years
Answer: B
Explanation: The American Dental Association recommends the first visit by age 1 or when the first tooth appears.
14. What does fluoride do for teeth?
A) Makes them softer
B) Strengthens enamel and prevents cavities
C) Causes sensitivity
D) Whitens them immediately
Answer: B
Explanation: Fluoride helps remineralize tooth enamel, making it more resistant to acid attacks from bacteria.
15. How long should you brush your teeth each time?
A) 30 seconds
B) 1 minute
C) 2 minutes
D) 5 minutes
Answer: C
Explanation: Brushing for at least 2 minutes ensures thorough cleaning of all tooth surfaces.
16. What is a root canal?
A) A procedure to straighten teeth
B) Removal of infected pulp and filling the tooth
C) A type of dental filling
D) Cleaning between teeth
Answer: B
Explanation: A root canal treats infection in the pulp by removing the damaged tissue and sealing the tooth.
17. Which food is best for dental health?
A) Candy
B) Crispy fruits and vegetables
C) Sugary drinks
D) Processed snacks
Answer: B
Explanation: Foods like apples and carrots help clean teeth naturally and stimulate saliva production.
18. What causes bad breath?
A) Brushing too much
B) Bacteria and food particles in the mouth
C) Drinking water
D) Flossing daily
Answer: B
Explanation: Bad breath, or halitosis, is often due to bacterial buildup and leftover food in the mouth.
19. How many sets of teeth do humans have in their lifetime?
A) One
B) Two
C) Three
D) Four
Answer: B
Explanation: Humans have two sets: primary (baby) teeth and permanent teeth.
20. What is the main benefit of regular dental check-ups?
A) To get free toothpaste
B) To detect and prevent dental problems early
C) To change toothbrushes
D) To learn about new candies
Answer: B
Explanation: Regular check-ups allow dentists to identify issues like cavities or gum disease before they worsen.
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