dental anatomy final review

When applying anesthesia in the mental foramen, what gets anesthetized?

The skin of the chin, the lower lip, the labial gingiva of the mandibular incisors from canine central and lateral, oral mucosa of the lower lip, buccal gingiva of the mandibular premolars

How many muscles of mastication?

8- 4 pairs, masseter, lateral pterygoid, medial pterygoid, temporalis

Which muscles elevate the mandible?

Anterior and middle fibers of the Temporalis, medial pterygoid, masseter (prime mover)

What space does the mandibular nerve pass through immediately after exiting the foramen ovale?

Infratemporal space

What space does the maxillary nerve pass through immediately after exiting the foramen rotundum?

Pterygopalatine space

true or false: does the mandibular nerve pass through the foramen ovale?

T

Where is the genial tubercle?

In the interior surface of the mandible, surrounding the lingual foramen

Which cranial nerve provides secretory fibers to innervate the parotid?

CN 9, glossopharyngeal

What are the bones that form the orbit of the eye?

Ethmoid, sphenoid, lacrimal, maxillary

If there is an infection in the chin where does the drainage go?

Submental, submandibular, cervical lymph nodes

T or F: The lateral pterygoid muscles are innervated by the molar branch of the facial nerve?

false They’re innervated by cranial 5, mandibular branch

T or F: the lateral pterygoid muscles have their origins in the zygomatic arch?

F- masseter

T of F: the lateral pterygoid muscles work together to retrude the mandible

F, posterior fibers of the temporalis .

Which artery branch supplies blood to all the mandibular teeth?

Inferior alveolar artery

Which artery branch supplies blood to all the maxillary teeth?

PSA, posterior superior alveolar artery

Which branch innervates the ⅔ of the tongue for sensation?

Lingual branch of the trigeminal nerve

Which muscle originate in the pterygoid fossa of the sphenoid?

none

what’s The lateral pterygoid muscle’s origin, and insertion location

origin:pterygoid plate insertion:disc of the TMJ

Medial pterygoid muscle

origin: medial side of the ramus (pterygoid fossae); insertion: angle of the mandible

Temporalis: origin

origin: temporal fossae; inserts: temporal crest

Masseter

origin: zygomatic arch insert: angle of the mandible

hich nerve passes the incisive canal?

Nasopalatine nerve

When you retract the lower lip what muscle pulls it back?

Mentalis muscle

What adapts lips to a straw?

Orbicularis oris

What are the branches of the external carotid artery?

Facial, lingual, maxillary

What bones make up the zygomatic arch?

Temporal process of the zygomatic bones connect with the zygomatic process of the temporal bone; maxillary, zygomatic, and temporal

The skin of the chin and mucosa membrane of the lower lip receive blood from which branch of the inferior dental?

Mental artery of inferior alveolar branch

If we have a hematoma…

This can result from incorrect way of injection of the PSA block when the needle penetrates the posterior superior maxillary molars pterygoid plates

Hyperactivity of which muscle makes it difficult for children to retract the lower lip?

Mentalis

Facial paralysis can be caused by parotid gland surgery because the facial nerve passes through the capsule of the parotid gland;

true

Skin of the chin and lower lip receive blood from the…

mental branch of the inferior alveolar artery

Where is the incisive papilla located?

Between the posterior of the central incisors, anterior ⅔ of the palate

If a patients mandibular 1st molar will be extracted which terminal nerves need to be anesthetized?

Lingual, buccal, inferior alveolar nerve

protrusion of the mandible without occlusal contact results from contracts of the masseter muscle;

F, protrusion happens from the lateral pterygoid muscles

What is the curve of spee?

Anterior and posterior

Curve of wilson

is medial and lateral

Overbite is?

Inferior superior- vertical

Overjet?

Anterior posterior- horizontal

Condyle movement has 2 movements:

(right side)laterotrusive; working side, (left side)mediotrusive; nonworking

In centric relationship the condyle and disc are positioned on the posterior slope of the fossae:

false

Which postural position of the mandible is determined by the neuromuscular activity and to lesser degree by elastic properties of the muscle?

Rest position(neutral position) of the mandible

What is tissue between the retromolar pad of the mandible and maxillary tuberosity?

Pterygomandibular raphe

What is not true of the maxillary 1st premolar?

maxillary 1st premolar has lingual cusp that is too short, nonfunctional. - its the Mandibular

Which premolar has 3 cusps and a lingual groove?

Mandibular 2nd

Where is the cusp of carabelli?

Mesiolingual cusp of the maxillary 1st molar

Which permanent teeth are first? Mandibular 1st molar

6-8 year molar

The heights of contour for the surfaces of the mandibular 1st premolar?

Buccal: cervical third Lingual : middle third

when do the primary central incisors erupt?

6-12 months

lateral primary incisors erupt at

9-16 months

primary canines erupt at

9-16 months

primary first molars erupt at

13-19 months

primary second molars erupt at

23-33 months

what is teh primary formula

I 2/2 C 1/1 M 2/2=5

what is the permanent formula

I 2/2 C1/1 PM 2/2 M3/3 =8

permanant maxillary central I erupts at

7-8 years old

lateral maxillary permanent I erupt

8-9 years old

permanent maxillary Canine erupts at

11-12 years old

maxillary first pre molar erupts at

10-11

maxillary second pre molar erupts at

10-12 years old

maxillary first molar erupts at

6-7 years old

maxillary 2nd molar erupts at

12-13 years

mandiublar central erupts

6-7 years old

mandibular lateral erupts

7-8 years old

mandibular canines erupts

9-10 years old

mandibular 1st pre molar erupts at

10-12 years old

manidbular 2nd pre molar erupts at

11-12 years old

mandibular first molar erupts at

6-7 years old

mandibular 2nd molar erupts at

11-13 years old