Test your basic knowledge |

Dentistry Tooth Development And Eruption

Subjects : health-sciences, dentistry

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. What happens when the reduced enamel epithelium is created?
The primary tooth can now erupt into the oral cavity - the REE fuses with the oral epithelium - then enzymes from the REE disintegrate the central portion of the epithelial tissue leaving an epithelial tunnel for the tooth to erupt
The ameloblasts
Hereditary in localized form. endocrine dysfunction is complete
Tall columnar cells

2. When root formation is completed the portion of the basement membrane disintegrates its cells may become what?
Dental papilla
Epithelial rests of Malassez
Into odontoblasts
Proliferation - differentiation - morphogenesis

3. What are the etiological factors for micro/macrodontia?
Hereditary in localized form. endocrine dysfunction is complete
Cementoblasts
Ameloblasts
After the crown is completely shaped and the tooth is starting to erupt into the oral cavity

4. When the inner epithelial epithelium columnar cells elongate and repolarize they differentiate into what?
Local or systemic or hereditary
Common on permanent molars or cingulum of anterior teeth
After the crown is completely shaped and the tooth is starting to erupt into the oral cavity
Preameloblasts

5. How is the reduced enamel epithelium created?
Future dentin and pulp tissue
Dentin secreting cells (odontoblats)
The enamel organ is compressed
Tooth germ

6. What is cementogenisis?
Large tooth with two pulp cavities. one fewer tooth in dentition. may cause problems in appearance and spacing
Future dentin and pulp tissue
Apposition of the cementum
Common on permanent molars or cingulum of anterior teeth

7. What are entrapped cementoblasts called?
Occurs commonly between the maxillary centrals - distal to the 3rd molars and premolar region. may cause crowding - failureof normal eruption and disruption of occlusion
Connective
The primordium of the pulp
Cementocytes

8. What will the dental sac give rise to?
The cementum - PDL - and alveolar bone
Extra cusp due to effects on enamel organ
To shape the root (or roots) and induce dentin formation in the root area so that it is continuous with coronal dentin
The cervical loop

9. What are the formative cells for enamel?
The enamel organ - dental papilla - dental sac
Differentiation of enamel organ into bell with four cell types and dental papilla into two cell types.
Ameloblasts
The actual vertical movement of the tooth

10. What is macrodontia?
Abnormally large teeth
The apposition of the enamel matrix
In the cap stage
8th week

11. The oral epithelium is induced by the ectomesenchyme to produce what?
The dental lamina
As a result of the apposition of cementum over dentin
When the gingiva recedes and no actual tooth movement takes place
The stellate reticulum

12. What are the clinical ramifications of concrescence?
Common with permanent maxillary molars
Ectoderm lining stomodeum gives rise to the oral epithelium and then to the dental lamina - adjacent to deeper ectomesenchyme - Which is influenced by the neural crest cells. Both tissues are seperated by a basement membrane
The basement membrane that seperates the enamel organ and dental papilla
Faulty development of enamel from interference involving ameloblasts

13. What processes are involved with the apposition stage?
Sphere of enamel on root
Common on permanent molars or cingulum of anterior teeth
Induction - proliferation
Large single rooted tooth with one pulp cavity and exhibits 'twinning' in crown area. normal number of teeth in dentition. may cause problems in appearance and spacing

14. What are the formative cells for cementum?
Union of 2 adjacent tooth germs
Only dentinal tubules with processes
Cementoblasts
Occurs commonly between the maxillary centrals - distal to the 3rd molars and premolar region. may cause crowding - failureof normal eruption and disruption of occlusion

15. What is the predominate process of the cap stage?
Imbrication lines of von Ebner
11th to 12th weeks
To shape the root (or roots) and induce dentin formation in the root area so that it is continuous with coronal dentin
Morphogenesis

16. What will the inner cells of the dental lamina differentiates into?
Traumatic injury or crowding of teeth
An extracellular substance that is partially calcified - yet serves as a framework for later calcification
The enamel organ
The primordium of the pulp

17. What else undergoes proliferation in the bud stage besides the dental lamina?
Differentiation of enamel organ into bell with four cell types and dental papilla into two cell types.
The ectomesenchyme
Enamel
Abnormally large teeth

18. What is the main process involved in initiation?
Induction
The tooth germ
Initiation
Enamel organ

19. What are the incremental lines for enamel?
A mineralized cylinder - the dentinal tubule
The cementum - PDL - and alveolar bone
Inner
Lines of Retzuis

20. What are the etiological factors for enamel pearl?
The basement membrane that seperates the enamel organ and dental papilla
Connective
The ameloblasts
Displacement of ameloblasts to root surface

21. What is another name for the dental sac?
There are none - they are lost with eruption
Dental follicle
Apposition of the cementum
The actual vertical movement of the tooth

22. What is concrescence?
Dental tissues fully mineralize to their mature levels.
Compressed layer of flat to cuboidal cells
Dens in dente - gemination - tubercle - and fusion
Union of root structure of two or more teeth by cementum

23. In the cap stage the tooth bud does not grow - what happens?
There is unequal growth in different parts of the tooth bud
Union of 2 adjacent tooth germs
Enamel organ forms into cap - surrounding mass of dental papilla from the ectomesenchyme and surrounded by mass of dental sac also from the ectomesenchyme. Formation of the tooth germ.
Odontoblasts

24. What causes the induction of the preameloblasts to differentiate into ameloblasts?
The disintegration of the basement membrane allows the preameloblasts to come into contact with the newly formed predentin
Hereditary - endocrine dysfunction - systemic disease - excess radiation exposure
Dental papilla
Commonly affects the permanent maxillary lateral incisor. tooth may have deep lingual pit and need endodontic therapy

25. What are the developmental disturbances of the cap stage?
The tooth germ
The bud stage
Dens in dente - gemination - tubercle - and fusion
Dentin and alveolar bone

26. When does the tooth bud become a tooth germ?
Ectoderm lining stomodeum gives rise to the oral epithelium and then to the dental lamina - adjacent to deeper ectomesenchyme - Which is influenced by the neural crest cells. Both tissues are seperated by a basement membrane
Faulty development of enamel from interference involving ameloblasts
The bud stage
In the cap stage

27. How is the dentinocemental junction formed?
After the crown is completely shaped and the tooth is starting to erupt into the oral cavity
To shape the root (or roots) and induce dentin formation in the root area so that it is continuous with coronal dentin
Alveolar bone
As a result of the apposition of cementum over dentin

28. What are the incremental lines for cementum and alveolar bone?
Hereditary - endocrine dysfunction - systemic disease - excess radiation exposure
May cause disruption of occlusion and aesthetic problems - may need partial or full dentures - bridges - and/or implants
Arrest and reversal lines
Future dentin and pulp tissue

29. What stage does supernumerary teeth occur?
Union of root structure of two or more teeth by cementum
Initiation
Epithelial
Local or systemic or hereditary

30. What is the structure responsible for root development?
Absence of single or multiple teeth
Displacement of ameloblasts to root surface
The cervical loop
8th week

31. What are succedaneous teeth?
The stellate reticulum
Permanent teeth formed with primary predecessors - the anterior teeth and the premolars
Faulty development of enamel from interference involving ameloblasts
Maturation

32. When does the process of root development take place?
Enamel organ invaginates into the dental papilla
Displacement of ameloblasts to root surface
After the crown is completely shaped and the tooth is starting to erupt into the oral cavity
The primordium of the pulp

33. What type of tissue is enamel?
Epithelial
The cementum - PDL - and alveolar bone
Odontoblastic process
Outer

34. What is the primordium of the tooth?
The tooth germ
Extra cusp due to effects on enamel organ
Permanent teeth formed with primary predecessors - the anterior teeth and the premolars
After the crown is completely shaped and the tooth is starting to erupt into the oral cavity

35. What is gemination?
Tooth germ tries to divide
The outer cells of the dental papilla and the central cells of the dental papilla
Faulty development of enamel from interference involving ameloblasts
Dental papilla

36. Passive eruption
Hereditary
There are none - they are lost with eruption
Dental follicle
When the gingiva recedes and no actual tooth movement takes place

37. What is microdontia?
Bud stage
Faulty development of enamel from interference involving ameloblasts
Abnormally small teeth
Commonly involves permanent maxillary lateral incisor and 3rd molars

38. Where is the dental papilla originally derived from?
The cervical loop
Maturation
The ectomesenchyme - which was influenced by the neural crest cells
May be confused as calculus deposit on root

39. What happens to the thickened non tooth producing portions of the dental lamina eventually?
Tall columnar cells
It disintegrates as the developing oral mucosa comes to line the oral cavity
Differentiation of enamel organ into bell with four cell types and dental papilla into two cell types.
Cuboidal cells

40. What are the mature cells for alveolar bone?
Into odontoblasts
Abnormally large teeth
Tooth germ tries to divide
Osteocytes

41. When the undifferentiated cells of the dental sac come into contact with the root dentin they differentiate into what?
There is unequal growth in different parts of the tooth bud
Cementoblasts
During the cap stage
Into odontoblasts

42. What are the development disturbances of the apposition and maturation stages?
Enamel pearl - enamel dysplasia - and concresence
Morphogenesis
Osteocytes
Initiation stage

43. What kind of cells occur in the inner enamel epithelium?
Tall columnar cells
Growth of the dental lamina into bud that penetrates growing ectomesenchyme
Dental tissues fully mineralize to their mature levels.
Hereditary

44. What are the mature cells for cementum?
Cementocytes
Epithelial rests of Malassez
Enamel
Osteoblasts

45. What happens during the maturation stage?
Pressure on the area
Dental tissues fully mineralize to their mature levels.
Cementocytes
Tall columnar cells

46. What are the clinical ramifications of micro/macrodontia?
Connective
9th to 10th weeks
The stellate reticulum
Commonly involves permanent maxillary lateral incisor and 3rd molars

47. What kind of cells reside in the stratum intermediate?
The stellate reticulum
Compressed layer of flat to cuboidal cells
9th to 10th weeks
Displacement of ameloblasts to root surface

48. The stellate reticulum is located inner or outer?
11th to 12th weeks
Epithelial rests of Malassez
Outer
The actual vertical movement of the tooth

49. What kind of cells occur in the outer enamel epithelium in the bell stage?
Cuboidal cells
Ectoderm lining stomodeum gives rise to the oral epithelium and then to the dental lamina - adjacent to deeper ectomesenchyme - Which is influenced by the neural crest cells. Both tissues are seperated by a basement membrane
Common on permanent molars or cingulum of anterior teeth
There is unequal growth in different parts of the tooth bud

50. What is dens in dente?
Trauma - pressure or metabolic disease
Dentinogenesis - Which is the apposition of dentin matrix - or predentin - on the other side of the basement membrane
Enamel organ invaginates into the dental papilla
Local or systemic or hereditary

Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?

Major Subjects
Tests & Exams AP CLEP DSST GRE SAT GMAT	Certifications CISSP go to https://www.isc2.org/ PMP ITIL RHCE MCTS More...	IT Skills Android Programming Data Modeling Objective C Programming Basic Python Programming Adobe Illustrator More...	Business Skills Advertising Techniques Business Accounting Basics Business Strategy Human Resource Management Marketing Basics More...
Soft Skills Body Language People Skills Public Speaking Persuasion Job Hunting And Resumes More...	Vocabulary GRE Vocab SAT Vocab TOEFL Essential Vocab Basic English Words For All Global Words You Should Know Business English More...	Languages AP German Vocab AP Latin Vocab SAT Subject Test: French Italian Survival Norwegian Survival More...	Engineering Audio Engineering Computer Science Engineering Aerospace Engineering Chemical Engineering Structural Engineering More...
Health Sciences Basic Nursing Skills Health Science Language Fundamentals Veterinary Technology Medical Language Cardiology Clinical Surgery More...	English Grammar Fundamentals Literary And Rhetorical Vocab Elements Of Style Vocab Introduction To English Major Complete Advanced Sentences Literature Homonyms More...	Math Algebra Formulas Basic Arithmetic: Measurements Metric Conversions Geometric Properties Important Math Facts Number Sense Vocab Business Math More...	Other Major Subjects Science Economics History Law Performing-arts Cooking Logic & Reasoning Trivia

Test your basic knowledge |

Dentistry Tooth Development And Eruption

Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?

Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests

Major Subjects

Tests & Exams

Certifications

IT Skills

Business Skills

Soft Skills

Vocabulary

Languages

Engineering

Health Sciences

English

Math

Other Major Subjects

Browse all subjects

Browse all tests

Most popular tests