OHS Exam 1
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1. occlusion: The contact between maxillary and mandibular teeth
2. Dentition: All teeth in our mouth
3. Diphydont: two sets of teeth (human dentition)
4. Heterodonts: multiple types of teeth - canines, incisors, molars, pre-molars
5. How many teeth in primary dentition?: 20 (10 on each arch, 5 on each quadrant).
6. How many teeth in permanent dentition?: 32 (16 on each arch, 8 on each Quadrant).
7. What does primary dentition lack?: Premolars
8. Edentulous: no teeth
9. What time frame is edentulous?: Birth to 6 months
10. When is primary dentition only seen?: 6 months to 6 years
11. When is mixed dentition present?: from 6 to 12 years
12. When is adult/ permanent dentition seen?: 12 to 17 years
13. When is 3rd molar eruption?: 17+
14. What adult teeth replace primary molars?: Permanent premolars
15. How many of each tooth does primary dentition include?: 2 molars, 1 canine, 2 incisors
16. How many of each tooth does permanent dentition include?: 3 molars, 2 premolars,
1 canine, 2 incisors
17. How many roots do primary maxillary molars have?: 3 roots
18. How many roots do permanent maxillary molars have?: 3 roots
19. How many roots do permanent maxillary premolars have?: 1 root
20. What is the purpose of anterior teeth?: Pointed for biting and tearing
21. Which teeth are classified as anterior teeth?: Incisors and canines
22. What is the purpose of posterior teeth?: Flat for grinding and chewing
23. What teeth are classified as posterior teeth?: Premolars and molars
24. How many incisors are in each arch?: 4
25. What is the difference between central and lateral incisors?: Lateral are slightly
smaller
26. What are the characteristics of incisors?: Single rooted, arched crowns, 1 sharp Incisal edge,
no cusps
27. Do incisors have cusps?: NO
28. What is the function of incisors?: To cut or incise food
29. How many canines in an arch?: 2
, OHS Exam 1
Study online at https://quizlet.com/_i17gpj
30. Which tooth has the longest root?: canine
31. How many cusps do canines have?: One
32. True or false: the only anterior tooth with a cusp is the canine?: True
33. What is the function of the canine?: Hold, grasp, and tear food
34. What is the canine also called?: The cornerstone of the mouth
35. How many premolars in each arch?: Four
36. How many cusps do premolars have?: 2 cusps - bicuspid
37. What is special about pre molars?: There are none in primary dentition
38. How many roots do maxillary first premolars have?: Bifurcated (2)
39. How many roots do all other premolars, maxillary or mandibular, have?
EXCEPT MAXILLARY 1ST PREMOLARS: One root
40. How many cusps do premolars have?: 1 prominent cusp, and 1-2smaller lingual cusps, so 2-3
41. What is the function of the premolars?: grinding food
42. How many permanent molars in each arch?: 6
43. How many primary molars in each arch?: 4
44. How many roots do permanent molars have?: 2-3, bifurcated or trifurcated
45. How many roots do mandibular permanent molars have?: Two
46. How many roots do maxillary per,aren't molars have?: Three
47. How many cusps do permanent molars have?: 4 or 5
48. What is the purpose of molars?: Grinding food
49. What does CEJ stand for?: Cementoenamel junction
50. Where is the Cementoenamel junction?: Separates the root from the crown, where gums lay
51. What are the purpose of lobes?: Where the tooth crown develops from
52. What is another name for lobe?: Primary growth centers
53. What is the cingulum?: Raised, rounded area on the cervical third of the lingual surface
54. Which teeth have cingulum?: Anterior teeth - canines and incisors
55. How many cingulum do anterior teeth have?: One
56. How many lobes do anterior teeth have?: Four
57. What is the rule for deter,in the number of lobes for anterior teeth and
premolars?: 3 + 1 for cingulum or +1 per LINGUAL cusp
58. How many lobes to 2 cusped premolars have?: 3 lobes
59. How many lobes do 3 cusped pre molars have?: 5
Study online at https://quizlet.com/_i17gpj
1. occlusion: The contact between maxillary and mandibular teeth
2. Dentition: All teeth in our mouth
3. Diphydont: two sets of teeth (human dentition)
4. Heterodonts: multiple types of teeth - canines, incisors, molars, pre-molars
5. How many teeth in primary dentition?: 20 (10 on each arch, 5 on each quadrant).
6. How many teeth in permanent dentition?: 32 (16 on each arch, 8 on each Quadrant).
7. What does primary dentition lack?: Premolars
8. Edentulous: no teeth
9. What time frame is edentulous?: Birth to 6 months
10. When is primary dentition only seen?: 6 months to 6 years
11. When is mixed dentition present?: from 6 to 12 years
12. When is adult/ permanent dentition seen?: 12 to 17 years
13. When is 3rd molar eruption?: 17+
14. What adult teeth replace primary molars?: Permanent premolars
15. How many of each tooth does primary dentition include?: 2 molars, 1 canine, 2 incisors
16. How many of each tooth does permanent dentition include?: 3 molars, 2 premolars,
1 canine, 2 incisors
17. How many roots do primary maxillary molars have?: 3 roots
18. How many roots do permanent maxillary molars have?: 3 roots
19. How many roots do permanent maxillary premolars have?: 1 root
20. What is the purpose of anterior teeth?: Pointed for biting and tearing
21. Which teeth are classified as anterior teeth?: Incisors and canines
22. What is the purpose of posterior teeth?: Flat for grinding and chewing
23. What teeth are classified as posterior teeth?: Premolars and molars
24. How many incisors are in each arch?: 4
25. What is the difference between central and lateral incisors?: Lateral are slightly
smaller
26. What are the characteristics of incisors?: Single rooted, arched crowns, 1 sharp Incisal edge,
no cusps
27. Do incisors have cusps?: NO
28. What is the function of incisors?: To cut or incise food
29. How many canines in an arch?: 2
, OHS Exam 1
Study online at https://quizlet.com/_i17gpj
30. Which tooth has the longest root?: canine
31. How many cusps do canines have?: One
32. True or false: the only anterior tooth with a cusp is the canine?: True
33. What is the function of the canine?: Hold, grasp, and tear food
34. What is the canine also called?: The cornerstone of the mouth
35. How many premolars in each arch?: Four
36. How many cusps do premolars have?: 2 cusps - bicuspid
37. What is special about pre molars?: There are none in primary dentition
38. How many roots do maxillary first premolars have?: Bifurcated (2)
39. How many roots do all other premolars, maxillary or mandibular, have?
EXCEPT MAXILLARY 1ST PREMOLARS: One root
40. How many cusps do premolars have?: 1 prominent cusp, and 1-2smaller lingual cusps, so 2-3
41. What is the function of the premolars?: grinding food
42. How many permanent molars in each arch?: 6
43. How many primary molars in each arch?: 4
44. How many roots do permanent molars have?: 2-3, bifurcated or trifurcated
45. How many roots do mandibular permanent molars have?: Two
46. How many roots do maxillary per,aren't molars have?: Three
47. How many cusps do permanent molars have?: 4 or 5
48. What is the purpose of molars?: Grinding food
49. What does CEJ stand for?: Cementoenamel junction
50. Where is the Cementoenamel junction?: Separates the root from the crown, where gums lay
51. What are the purpose of lobes?: Where the tooth crown develops from
52. What is another name for lobe?: Primary growth centers
53. What is the cingulum?: Raised, rounded area on the cervical third of the lingual surface
54. Which teeth have cingulum?: Anterior teeth - canines and incisors
55. How many cingulum do anterior teeth have?: One
56. How many lobes do anterior teeth have?: Four
57. What is the rule for deter,in the number of lobes for anterior teeth and
premolars?: 3 + 1 for cingulum or +1 per LINGUAL cusp
58. How many lobes to 2 cusped premolars have?: 3 lobes
59. How many lobes do 3 cusped pre molars have?: 5
