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Dental Assisting: Head And Neck Anatomy

Subjects : health-sciences, dentistry

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Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
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1. What are the four main functions of deciduous teeth?
A bat shaped bone which forms the anterior portion of the skull
Buccal - lingual - and inferior alveolar
Intervating the anterior teeth and the labial gingiva
Mastication - aids in speech - influence facial structure - chewing surfaces

2. Internal Jugular Vein
Inside of the maxillary teeth
Molaris meaning millstone
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Maxillary third molar

3. Incisal Edge
Where the proximal sides of two teeth come together and touch
Enamel is thinner - pulp chamber is smaller -
Biting edge of the teeth
Lower arch of the teeth

4. What is the latin word for molar?
When the surface of the teeth becomes grooved
Greater - lesser - naso palatine nerves
Molaris meaning millstone
Raised vertical folds of tissue on the lateral border of the tongue

5. Mylohyoid Nerve Branch
Resists intrusive forces that try to push the tooth inwards
Initiation of the tooth begins
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Covers muscle tissue in the posterior portion of the palate

6. Gingiva
1500 millimeters
The internal surface at the center of the mandible
Composed of mucosa and surrounds the necks of the teeth
Joined at the midline and are often referred to as the median Palatine suture

7. Median Sulcus
Permeante teeth replace the primary teeth
Wings of the sphenoid bone
Week 12
What divides the tongue in half and runs from the base to the tip of the tongue

8. Circumvallate Papillae
Extends from the mucogingival junction to the gingival groove
Band of fibrous tissue which attaches bone to bone
Bony projection found on the bottom border of the temporal bone
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10

9. Dentoperiosteal Fiber Groups
Supportive fibers that anchor the tooth to the bone
The moveable attachment of the muscle
4 cusps/ bifurcated
Where the proximal sides of two teeth come together and touch

10. Ameloblast
6 years old
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Enamel forming cells
Tissue covering the alveolar processes

11. Hypercementosis
Digstric - Mylohyoid - stylohyoid - geniohyoid
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Outside surface Which is towards the lips
Causes a thickening of the cementum around the apex

12. What is the largest cranial nerve and the most important to dental auxillaries and why?
Dividing point of a multi-rooted tooth
Trigeminal nerve--because it ennervates the maxilla and the mandible
Enamel is thinner - pulp chamber is smaller -
Set of arches found farther in the back of the throat

13. How many teeth are in the Primary teeth?
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
20
Small grooves noted on some teeth
Mastication - aids in speech - influence facial structure - chewing surfaces

14. Hyoid Bone
A horseshoe shaped bone lying at the base of the tongue--all the muscles of the tongue and the floor of the mouth attach to this bone
The connective tissue of the marginal gingiva
9 months (5 months ultrasound to tell sex)
Upper arch of the teeth

15. Circular Ligament Fiber Groups
Dentin found between the tubules
Cells that form cementum
Circle and tighten the gingival margin around the neck of the tooth
Healthy gingival tissue with an orange texture

16. Sphenoid
A bat shaped bone which forms the anterior portion of the skull
Healthy gingival tissue with an orange texture
Shed from the oral cavity
Portion of the lips that are red

17. Perikymata
Bone that surrounds the root of the tooth
Drains the floor of the mouth
Lining covers inside of the oral cavity
Small grooves noted on some teeth

18. Mental Artery
Surface towards the midline
Genioglossus - hyoglossus - styloglossus - palatoglossus
Formed by the uniting of lobes during development of crown
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip

19. Imbrication lines
Developmental segment of a tooth
Slight ridges on the cervical third of certain teeth that extend mesiodistally
Inside of the maxillary teeth
A faint line going from the ala of the nose to the corner of the mouth

20. Maxilla
Week 12
Tissue fluid surrounding the cell membrane of the odontoblast
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
Largest facial bone with two sections joined at the median suture

21. lst and second premolars
Teeth after cuspids
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Portion of the lips where the skin meets the vermilion zone
The mandibular first premolar

22. Dental Sac
Composed of mucosa and surrounds the necks of the teeth
An enclosed area that matures into dentin - cementum and pulp
Chewing and swallowing food
Act to maintain the gingival integrity of the marginal gingiva

23. Groove
Small linear depression
Bone that surrounds the root of the tooth
A rounded area beyond the last posterior maxillary tooth
A line that represents the alveolus bone lining the socket

24. Fetal Alcohol Syndrome symptons
Excess bone in the middle of the palate
A rounded area beyond the last posterior maxillary tooth
Small head - low nasal bridge - thin upper lip - small mandible
The development of different tissues

25. How many teeth are in the permanent set of teeth?
Follows the inside of the ramus and the body of the mandible
Function to resist rotational forces and tilting
A bony projection that separates each socket
32

26. What is Ankyloglossia and who can treat it / What is the treatment called?
Upper arch of the teeth
A condition where the lower frenum attachment is very short/DDS/frenectomy
Third tooth from the midline
Origin - fixed point - insertion - movable point

27. Enamel Lamellae
Narrow long enamel tuft
Linear elevation of the tooth
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
A line that represents the alveolus bone lining the socket

28. Neonatal line
Incremental line indicating trauma of birth
Elevates the posterior portion of the tongue and narrows the fauces
A small projection in the middle of the upper lip
Pulverizing or chewing surface

29. What is another name for premolars?
The gingiva in the floor of the gingival sulcus that attaches to the enamel
A horseshoe shaped groove that follow the curve of the dental arch
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
Bi-cuspids

30. Cemental Spurs
Interdental ligament
The largest of the salivary glands which lie just below and in front of the ear
Found near the cementoenamel junction
The deepest point of the vestibule

31. Enamel Spindle
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
Trigeminal nerve--because it ennervates the maxilla and the mandible
Short tubules that seem to crossover to the enamel
The connective tissue of the marginal gingiva

32. Fimbriated Folds
Folds of tissue to the the lingual veins
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
Forms after the completion of the apical foramen
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum

33. What are the 4 muscles of the floor of the mouth?
Digstric - Mylohyoid - stylohyoid - geniohyoid
Lift the hyoid bone and assist in opening the mouth
Resists intrusive forces that try to push the tooth inwards
Supportive fibers that anchor the tooth to the bone

34. Naso Palatine Nerve
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
A period of both primary teeth and permeant teeth are in the dentition
(free gingiva) surrounds the teeth
Substances between cells

35. Ectoderm
Wings of the sphenoid bone
10 days
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Small linear depression

36. Xerostomia
Excess dryness of the mouth
Triferacated
Mandibular central incisors
Retracts the tongue and raises the tip of the tongue

37. External Jugular Vein
Drains the superficial veins of the face and neck into the subclavian vein
A period of both primary teeth and permeant teeth are in the dentition
Outside surface Which is towards the lips
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged

38. Maxillary Tuberosity
Cells develop into different tissues
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
A rounded area beyond the last posterior maxillary tooth
Two

39. Alveolar Mucosa
A line of tissue that extends from the tongue to the floor of the mouth
Appears to be loosely attached - covering the alveolar bone.
Secrete saliva to assist in process of digestion
A raised area of tissue laying behind the maxillary central incisors on the hard palate

40. Inferior Alveolar Artery
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
Acts as anchors between the alveolar bone and the tooth
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Shaping the tongue during speech - mastication and swallowing

41. What is the purpose of permanent teeth?
Mildest form of cleft palate
Third tooth from the midline
Mandibular central incisors
Cut - tear - and grind food

42. Maxillary Nerve Branch
Wings of the sphenoid bone
A faint line going from the ala of the nose to the corner of the mouth
Bluish veins that run the length of the tongue
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx

43. Incisive Papilla
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Upper arch of the teeth
A projection that extends off the back of the soft palate
Occurs in unusual ways and distorted crowns may appear

44. Taste Buds
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
The mandibular molars
Oval structures that are located on the dorsal surface of the tongue
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue

45. What are the 12 landmarks of the oral cavity?

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46. Incisive Nerve branch
Intervating the anterior teeth and the labial gingiva
Dentin found between the tubules
Looking at the border of the tongue
A bony projection that separates each socket

47. Occlusion third
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
Enamel is thinner - pulp chamber is smaller -
Occlusal surface of the posterior tooth
Retracts or depresses the tongue

48. Mamelons
Resists forces that try to pull the tooth outward
Arteries supplying blood to most of the head and the neck
Three bulges on the incisal edge
Ligaments and muscles of mastication

49. Primary Dentin
Looking at the border of the tongue
Smaller branch that ennervates the soft palate uvula and tonsils
The inner surface of the lips
Forms the bulk of the tooth

50. Mylohyoid Artery
No bicuspids/ no 3rd molars
The gingiva in the floor of the gingival sulcus that attaches to the enamel
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
Branches off the inferior alveolar artery before intering the mandibular canal

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Dental Assisting: Head And Neck Anatomy

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