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Dental Assisting: Head And Neck Anatomy

Subjects : health-sciences, dentistry

Instructions:

Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
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1. What is the latin word for molar?
Enamel forming cells
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Molaris meaning millstone
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged

2. Posterior Superior Alveolar Nerve
Composed of mucosa and surrounds the necks of the teeth
Cells From which connective tissue evolve
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
Folds of tissue that extend horizontally from the uvula to the base of the tongue

3. Buckle groove
Trigeminal - facial - glossopharyngeal - hypoglossal
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
Occlusal surface of the posterior tooth

4. Oblique Ridge
The fixed attachment of a muscle
Occurs in unusual ways and distorted crowns may appear
Inside surface Which is towards the tongue - on anterior teeth
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth

5. Incisive Nerve branch
Mastication - aids in speech - influence facial structure - chewing surfaces
Intervating the anterior teeth and the labial gingiva
Calcium salts are deposited into formed tooth
Pointed or rounded mounds on the crown of the tooth

6. Ligament
Function to resist rotational forces and tilting
Teeth will not erupt in proper position
Band of fibrous tissue which attaches bone to bone
Molaris meaning millstone

7. Attrition
Permeante teeth replace the primary teeth
Forms a large cavity above the roots of the maxillary molars
Wearing away of the incisal or occlusal surfaces of the tooth
Study of prenatal growth and the developing process of an individual

8. Alveolar Crest Fiber Group
Primary and permanent
Mucosa that covers the alveolar bone
Function to resist rotational forces and tilting
Intervates the floor of the mouth the ventral side of the tongue taste buds on the anterior two thirds of the tongue and the lingual gingiva

9. Genial Tubercles
Tissue fluid surrounding the cell membrane of the odontoblast
Compact bone plate of the facial and lingual surfaces
Small bony projections surrounding the lingual foramen
1500 millimeters

10. Pulp horns
Pointed elongations of the pulp
Small yellowish glands on the labial mucosa
Follows the inside of the ramus and the body of the mandible
Outside surface Which is towards the lips

11. Horizontal Fiber Group
Functions the same as the alveolar cfg; originate in alveolar bone
2 to 3 pints
Elevates the posterior portion of the tongue and narrows the fauces
Mucosa that covers the alveolar bone

12. Convects
Ligaments and muscles of mastication
Looking at the border of the tongue
Teeth after cuspids
Curve outward

13. Paranasal
Of or pertaining to area surrounding naval cavity
Full deep rich sound in nasal cavity
Small raised projections where taste buds are located
Molars

14. Which molar contains the cusp of Caribelli?
A dense tissue covered with mucous membrane that can withstand chewing
Glands the size of a walnut that lie on the inside of the mandible and empty saliva into the mouth thru the Wharton's duct
Wings of the sphenoid bone
Maxillary first molar

15. Enamel Lamellae
Narrow long enamel tuft
Substances between cells
Natural teeth in position
Inside of the maxillary teeth

16. Facial Artery
Maxillary third molar
Short tubules that seem to crossover to the enamel
Contains six branches that supply blood to the pharynx muscles - soft palate tonsils - the posterior of the tongue - sub mandibular gland - muscles of the face - nasal septom - nose and the eyelids
Mildest form of cleft palate

17. What teeth do the deciduous (baby) tooth not include?
No bicuspids/ no 3rd molars
A triangular area located behind the last molar
Scroll like bones outside the nasal cavaties
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged

18. Lingual Foramen
Slight ridges on the cervical third of certain teeth that extend mesiodistally
The internal surface at the center of the mandible
Respiratory system - digestive system and glandular organs
Study of the structure and form of the teeth

19. Xerostomia
Where the ectoderm layer matures into the enamel
Excess dryness of the mouth
Developmental segment of a tooth
The slightly raised line extending down the middle of the hard palate

20. Apposition
Where the ectoderm layer matures into the enamel
Resist rotational forces and hold teeth in inter-proximal contact
Developmental segment of a tooth
Calcium salts are deposited into formed tooth

21. Enamel Tufts
Small dark brushes
Week 11
Mucosa that covers the alveolar bone
Trigeminal nerve--because it ennervates the maxilla and the mandible

22. Nasmyths Membrane
Incremental line indicating trauma of birth
Covering over the enamel that is left over from the epithelium ameloblasts
Inside of the maxillary teeth
Where the ectoderm layer matures into the enamel

23. Stensens' Duct (aka Parotid)

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24. External Auditory Meatus
The smallest of the salivary glands located on the floor of the mouth which empty into the mouth thru either the ducts of Rivinus or Bartholin
Forms into the inner lining of the oral cavitiy and enamel of the teeth
A condition where the lower frenum attachment is very short/DDS/frenectomy
Opening for the ear

25. Styloid Process
12 years
Sharp projection on the under surface of the temporal bone
Draws the hyoid bone superiorly and posteriorly and stabilizes it
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen

26. Oblique Fiber Group
Resist rotational forces and hold teeth in inter-proximal contact
Pulverizing or chewing surface
A rounded area beyond the last posterior maxillary tooth
Resists intrusive forces that try to push the tooth inwards

27. Torus
Substances between cells
Excess bone in the middle of the palate
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Calcified masses of dentin

28. Middle Superior Alveolar Nerve
Folds of tissue to the the lingual veins
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Extends from the medial corner of the eye to the nasal cavity
Assists in elevating the chin

29. Morpho differentiation
Bifurcated/ 5 cusps
Trigeminal nerve--because it ennervates the maxilla and the mandible
Study of the structure and form of the teeth
The development of different forms

30. What are the eight landmarks of the face?
Third tooth from the midline
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
1500 millimeters
Acts as anchors between the alveolar bone and the tooth

31. What are the only permeant teeth that are not succedaneous?
Forms a large cavity above the roots of the maxillary molars
Origin of the tooth
Molars
Ligaments and muscles of mastication

32. Dental Arteries
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Follows the length of the body of the mandible past the last tooth and up to the ramus
Supplies blood to the roots and periodontal ligaments of the molars and premolars
H20 - mucin - organic salts and digestive enzymes

33. What are the characteristics of permanent teeth?
Pointed or rounded mounds on the crown of the tooth
Second teeth next to central incisors
Enamel is thinner - pulp chamber is smaller -
Drains the superficial veins of the face and neck into the subclavian vein

34. Mantle Dentin
Forms after the completion of the apical foramen
The first predentin that is formed and matures within the tube
Lining covers inside of the oral cavity
Layers of tooth tissue become calcified

35. Develop Mental Groove
H20 - mucin - organic salts and digestive enzymes
Formed by the uniting of lobes during development of crown
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Folds of tissue that extend horizontally from the uvula to the base of the tongue

36. Imbrication lines
Slight ridges on the cervical third of certain teeth that extend mesiodistally
The largest of three openings located in the posterior region of the hard palate
When the surface of the teeth becomes grooved
A condition where the lower frenum attachment is very short/DDS/frenectomy

37. Xygote
Week 11
Linear elevation of the tooth
Conception thru the first two weeks
Genioglossus - hyoglossus - styloglossus - palatoglossus

38. Gingival Sulcus
The space between the unattached gingiva and the tooth
Cells develop into different tissues
The moveable attachment of the muscle
Radiates from the developmental groove

39. Lacrimal Bones
Natural teeth in position
When the surface of the teeth becomes grooved
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
Glands the size of a walnut that lie on the inside of the mandible and empty saliva into the mouth thru the Wharton's duct

40. Incisive Papilla
Molars
Fleshy elevation under the tongue
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Quarters of the teeth

41. Dentinal Fluid
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
Inner portion of the enamel rod
Shaping the tongue during speech - mastication and swallowing
Tissue fluid surrounding the cell membrane of the odontoblast

42. Vermilion Border
Enamel forming cells
Lift the hyoid bone and assist in opening the mouth
4 cusps/ bifurcated
Portion of the lips where the skin meets the vermilion zone

43. How many roots/ cusps does the mandibular first molar have?
Bifurcated/ 5 cusps
Assist in depressing the mandible and elevating the tongue
Folds of tissue to the the lingual veins
Covers muscle tissue in the posterior portion of the palate

44. Clinical root
The disc becomes displaced
The slightly raised line extending down the middle of the hard palate
Portion of the root seen in the oral cavity
Third tooth from the midline

45. Filiform Papillae
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Demonstrates a disturbance in the body metabolism
To lubricate the oral cavity and to moisten food
Inside of the maxillary teeth

46. Saliva
Clear fluid secreted by the salivary and mucous glands throughout the mouth
Aid in attaching the gingiva to the alveolar bone
Joined at the midline and are often referred to as the median Palatine suture
(free gingiva) surrounds the teeth

47. Embryology
Sharp projection on the under surface of the temporal bone
Extends from the medial corner of the eye to the nasal cavity
The ridges that run horizontally across the hard palate behind the incisive papilla
Study of prenatal growth and the developing process of an individual

48. Pit
Place where the groove comes together or fissures cross
A triangular area located behind the last molar
Elevated are of enamel that forms the Mesial and distal borders
H20 - mucin - organic salts and digestive enzymes

49. Facial development
Assists in elevating the chin
9 weeks thru birth
4th week
Hinge motion and gliding movement

50. If a patient receives toxic agents - how long does it take for their sense of taste to return?
Sharp projection on the under surface of the temporal bone
Small raised projections where taste buds are located
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
10 days