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. Where does the primordium of the permanent dentition develop?
Absence of single or multiple teeth
An extracellular substance that is partially calcified - yet serves as a framework for later calcification
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.
The successional dental lamina - an extension of the dental lamina that extends out lingually to the primary tooth germs

2. Where is the dental sac originally derived from?
Local or systemic or hereditary
Hereditary in localized form. endocrine dysfunction is complete
Union of root structure of two or more teeth by cementum
The ectomesenchyme

3. What happens during the apposition stage?
Epithelial
Dental tissues secreted as matrix in successive layers.
Large tooth with two pulp cavities. one fewer tooth in dentition. may cause problems in appearance and spacing
The tooth germ

4. What are the etiological factors of tubercle?
Apposition of the cementum
The ameloblasts
Only dentinal tubules with processes
Trauma - pressure or metabolic disease

5. Which teeth are nonsuccedaneous?
The ameloblasts place an acellular dental cuticle on the new enamel surface
Traumatic injury or crowding of teeth
The permanent molars
Induction - proliferation

6. When does dens in dente occur?
Trauma - pressure or metabolic disease
During the cap stage
The permanent molars
Enamel organ

7. What happens to the thickened non tooth producing portions of the dental lamina eventually?
It disintegrates as the developing oral mucosa comes to line the oral cavity
The enamel - dentin - and cementum are secreted in successive layers
8th week
Abnormally large teeth

8. What causes the induction of the preameloblasts to differentiate into ameloblasts?
The outer enamel epithelium
Extra cusp due to effects on enamel organ
The disintegration of the basement membrane allows the preameloblasts to come into contact with the newly formed predentin
The ameloblasts

9. What is the structure responsible for root development?
The cervical loop
It disintegrates as the developing oral mucosa comes to line the oral cavity
Odontoblastic process
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.

10. The oral epithelium is induced by the ectomesenchyme to produce what?
The dental lamina
As a result of the apposition of cementum over dentin
The outer cells of the dental papilla and the central cells of the dental papilla
Common with permanent maxillary molars

11. What are the 2 layers in the dental papilla within the concavity of the enamel organ?
Commonly affects the permanent maxillary lateral incisor. tooth may have deep lingual pit and need endodontic therapy
Dental follicle
The outer cells of the dental papilla and the central cells of the dental papilla
The outer enamel epithelium - the inner enamel epithelium - the stellate reticulum - and the stratum intermedium

12. What are the etiological factors for micro/macrodontia?
The enamel organ
Hereditary in localized form. endocrine dysfunction is complete
Displacement of ameloblasts to root surface
Traumatic injury or crowding of teeth

13. What are the formative cells for dentin?
Commonly affects the permanent maxillary lateral incisor. tooth may have deep lingual pit and need endodontic therapy
The ameloblasts place an acellular dental cuticle on the new enamel surface
Odontoblasts
The basement membrane that seperates the enamel organ and dental papilla

14. Odontoblasts leave attached cellular extensions in the length of the predentin called what?
Maturation
In the cap stage
Odontoblastic process
Preameloblasts

15. How is the reduced enamel epithelium created?
The dental sac
The enamel organ is compressed
The cementum - PDL - and alveolar bone
The outer enamel epithelium - the inner enamel epithelium - the stellate reticulum - and the stratum intermedium

16. What hard tissue is can not have tissue formation after eruption?
The enamel organ
Cementoblasts
Enamel
An extracellular substance that is partially calcified - yet serves as a framework for later calcification

17. What are the odontoblastic processes is contained in what?
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.
Cementocytes
A mineralized cylinder - the dentinal tubule
Dental papilla

18. What are the clinical ramifications of gemination?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

19. What is concrescence?
Large tooth with two pulp cavities. one fewer tooth in dentition. may cause problems in appearance and spacing
Induction
Union of root structure of two or more teeth by cementum
Alveolar bone

20. What will the inner cells of the dental lamina differentiates into?
9th to 10th weeks
Odontoclasts
The primordium of the pulp
Odontogenesis

21. What are the clinical ramifications of concrescence?
The enamel organ - dental papilla - dental sac
Oral epithelium
Common with permanent maxillary molars
The ectomesenchyme - which was influenced by the neural crest cells

22. When the undifferentiated cells of the dental sac come into contact with the root dentin they differentiate into what?
Tall columnar cells
Odontogenesis
Development of one or more extra teeth
Cementoblasts

23. What is the main process involved in the bud stage?
Enamel organ
Tooth germ
8th week
Proliferation

24. What wll the inner enamel epithelium differentiate into?
Enamel secreting cells (ameloblasts)
Induction - proliferation
Commonly involves permanent maxillary lateral incisor and 3rd molars
Tall columnar cells

25. What hard tissue is innervated by nerves?
Tooth germ tries to divide
The ameloblasts
The ectomesenchyme
Dentin and alveolar bone

26. What is cementogenisis?
Commonly affects the permanent maxillary lateral incisor. tooth may have deep lingual pit and need endodontic therapy
Enamel secreting cells (ameloblasts)
Preameloblasts
Apposition of the cementum

27. What are the incremental lines for enamel?
To shape the root (or roots) and induce dentin formation in the root area so that it is continuous with coronal dentin
Lines of Retzuis
There are none - they are lost with eruption
Enamel organ invaginates into the dental papilla

28. What are the mature cells for dentin?
Dental follicle
Lines of Retzuis
11th to 12th weeks
Only dentinal tubules with processes

29. What is tubercle?
Hereditary
May cause disruption of occlusion and aesthetic problems - may need partial or full dentures - bridges - and/or implants
Enamel
Extra cusp due to effects on enamel organ

30. What is dens in dente?
Tooth germ
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
Trauma - pressure or metabolic disease

31. What processes are involved with the apposition stage?
Enamel organ invaginates into the dental papilla
Hereditary
Enamel pearl - enamel dysplasia - and concresence
Induction - proliferation

32. Where is the enamal organ originally derived from?
The dental lamina
The enamel organ - dental papilla - dental sac
The ectoderm
The basement membrane that seperates the enamel organ and dental papilla

33. When does the tooth bud become a tooth germ?
In the cap stage
Cementoblasts
The Tomes' process - a tapered portion of each ameloblast that faces the disintegrating basement membrane
The enamel organ is compressed

34. What are succedaneous teeth?
Permanent teeth formed with primary predecessors - the anterior teeth and the premolars
Dental follicle
Maturation
Epithelial

35. The preameloblasts induce dental papilla cells to differentiate into what?
Ameloblasts
Maturation
Differentiation of enamel organ into bell with four cell types and dental papilla into two cell types.
Into odontoblasts

36. What is the embryological background for enamel?
Tooth germ tries to divide
Enamel organ invaginates into the dental papilla
Enamel organ
Sphere of enamel on root

37. What is the cementum matrix called?
Abnormally small teeth
The enamel organ
The dental lamina
Cementoid

38. What will the dental papilla eventually form?
Sphere of enamel on root
Trauma - pressure or metabolic disease
Future dentin and pulp tissue
The dental sac

39. When root formation is completed the portion of the basement membrane disintegrates its cells may become what?
6th to 7th weeks
Epithelial rests of Malassez
Tooth germ tries to divide
Hereditary in localized form. endocrine dysfunction is complete

40. What is microdontia?
Abnormally small teeth
There is unequal growth in different parts of the tooth bud
During the cap stage
Tooth germ tries to divide

41. What do the odontoblasts do?
Dentinogenesis - Which is the apposition of dentin matrix - or predentin - on the other side of the basement membrane
9th to 10th weeks
Bud stage
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.

42. What happens during the appositional stage?
The enamel - dentin - and cementum are secreted in successive layers
Epithelial
Permanent teeth formed with primary predecessors - the anterior teeth and the premolars
The ameloblasts place an acellular dental cuticle on the new enamel surface

43. What is the predominate process of the cap stage?
The primordium of the pulp
Morphogenesis
Cuboidal cells
Odontoblasts

44. What cell bodies are involved in the eruption and mineralization process but will be lost after eruption?
The actual vertical movement of the tooth
The basement membrane that seperates the enamel organ and dental papilla
The ameloblasts
Traumatic injury or crowding of teeth

45. What are the etiological factors for supernumerary teeth?
Inner
Dental follicle
Hereditary
Displacement of ameloblasts to root surface

46. How many types of cells are found in the enamel organ in the bell stage?
The enamel organ - dental papilla - dental sac
The basement membrane
4 types
Proliferation

47. What is the time span for initiation?
The dental sac
The bud stage
6th to 7th weeks
Odontoclasts

48. When the inner epithelial epithelium columnar cells elongate and repolarize they differentiate into what?
Pitting or intrinsic color changes in enamel. changes in thickness of enamel possible. problems in function and aesthetics
Dentin and alveolar bone
Extra cusp due to effects on enamel organ
Preameloblasts

49. What are the etiological factors for enamel pearl?
A mineralized cylinder - the dentinal tubule
Displacement of ameloblasts to root surface
Abnormally large teeth
Outer

50. What are the major components of the tooth germ?
Apposition of the cementum
Dental papilla
The enamel organ
The enamel organ - dental papilla - dental sac

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