The muscle involved in
incisor clenching is the

Lateral pterygoid

The deciduous teeth erupt
generally in a

Anterior – posterior
sequence

The most common permanent
teeth eruption in maxilla is

(6-1)-2-4-3-5-7-8

The difference between
mesiodistal diameter width between premolars and deciduous molars is referred
as

Leeway space

Curve of Spee is in a

Saggital plane

In a normal dentition,
teeth are placed __________ degrees to the horizontal plane

15

Balanced occlusion is given
by

Thielemann’s formula.
Explanation  Balanced occlusion is (
condylar guidance*incisial guidance)/ ( curve of Spee* cusp height* plane of
occlusion)

Mesiodistal inclination of
the teeth is lowest with

Mandibular canine. The
inclination is 0 degrees and maximum inclination is seen with maxillary
canine and about 17 degrees. Similarly the minimum faciolingual inclination
is about 5 degrees with maxillary first premolar and 28 degrees in maxillary
central incisors.

The total number of
possible occlusal contacts are

198

The process of swallowing
requires a coordination of at least

20 muscles

The presence of overjet in
molars prevents

Cheek biting

The supporting cusps are

Lingual cusp of maxilla and
buccal cusp of mandible teeth

Multiple working side
contacts are seen as a part of

Group function

The areas of contact that a
supporting cusp makes with opposing teeth is

Centric stop

A phasic jaw-closing reflex
is often evoked by a tap to __________ and denotes _____________.

Chin; pathology. Tonic type
is normal

The muscle involved in
incisor clenching is the

Lateral pterygoid

The deciduous teeth erupt
generally in a

Anterior – posterior
sequence

Masseter is covered by

Platysma; Risorius; Parotid
gland

Principal postioner of
mandible during elevation is the

Temporalis

The fan shaped muscles of
mastication is the

Temporalis

The antagonist muscle to
masseter while retruding jaw is the

Posterior temporalis. The
anterior pterygoid is synergistic with masseter while clenching.

The facial muscle(s) active
during opening of jaw is(are)

Digastric group of muscles;
Mylohyoid and geniohyoid; Lateral pterygoid

When the jaw is opened
against resistance the

Temporalis remains silent

The antagonist muscle of
elevator muscles is the

Digastric group of muscles;
Mylohyoid and geniohyoid; Suprahyoid muscles

With mandible is retruded
with mouth closed, the muscle involved are

Posterior fibers of
temporalis; Suprahyoid fibers; Infrahyoid fibers

The duration of each
chewing cycle is between

0.6 – 1 second

The chewing forces reaches
a maximum with

Centric occlusion

The facial muscle contraction
is monitored by receptors in

Tendons (golgi tendon
organs); Muscles (muscle spindles); Other receptors( skin, joint)

The fibers that are capable
of rapid contraction and high tension but fatigue rapidly is the

Type I or phasic fibers.
The type II or tonic functioning fibers handle lower contraction tension and
is resistant to fatigue.

The lateral pterygoid
muscles function to stabilize the tempromandibular joint and is made
predominantly of

Type II or Tonic fibers

The path of opening and
closing of the condyle without involving the translation of condyle is the

Centric relation

In natural dentition

Centric occlusion is
anterior to centric relation by 1 millimeters

The centric relation is

Tooth determined position.
The condyle in the articular fossa determines the centric relation

Basic movements of condyle
include(s)

Hinge movement; Gliding
movement; Translation

In lateral excursion of
mandible, the condyle appears to rotate with a slight lateral shift referred
as

Bennett movement

The maximum lateral shift
is

10-12 millimeters.
Protrusive movement is 8 to 11 millimeters and retrusive movement is 1
millimeter.

The superior head of
lateral pterygoid muscle functions to

Close jaw. The inferior
head functions to open jaw

The major arterial supply
to the jaw is via the

Internal maxillary artery.
The internal maxillary artery is a branch of external carotid artery

The internal alveolar
artery branches from internal maxillary artery just

Medial to ramus of mandible

The gasserian ganglion is
at the

Petrous part of temporal
bone

The parasympathetic
ganglion associated with maxillary nerve is the

Pterygopalatine ganglion

The mylohyoid nerve branch
is associated with

Sphenomandibular ligament

The middle and anterior
palatine branch of maxillary nerve enters the palate through the

Minor palatine foramen. The
posterior palatine branches pass through the major palatine foramen.

The long axes of the
condyloid process if prolonged would meet at a point anterior to foramen
magnum at an angle of

135 degrees

The tempromandibular
ligament is the external portion of the

Capsular ligament

The accessory fibers of the
stylomandibular ligament is the

Stylomandibular ligament

The suspensory ligaments of
the tempromandibular joint are the

Tempromandibular and
sphenomandibular ligaments

The maxillary nerve leaves
the cranium through the

Foramen rotandum

Mandibular nerve passes
through

Foramen ovale

Facial nerve leaves cranium
through

Stylomastoid foramen

The ganglion associated
with maxillary nerve is the

Sphenopalatine ganglion

The ganglion associated
with ophthalmic nerve is

Ciliary ganglion

The ganglion associated
with mandibular nerve is

Submandibular ganglion and
Otic ganglion

 The nasociliary nerve comes out through the

Superior orbital fissure

The sensory root and motor
root of mandibular nerve unite

After leaving foramen ovale

The motor roots of
mandibular division of the fifth cranial nerve are derived from the motor
cells located at the

Medulla oblongata

The greater petrosal nerve
is associated with

Sphenopalatine ganglion

The sensory root of the
fifth cranial nerve enter the brain stem through the

Pons

The semilunar ganaglion is
located in the

Meckel’s cavity

The sensory root of the
fifth cranial nerve is made up of

Unipolar neurons

The ascending fibers of the
central branches of the sensory root of the fifth cranial nerve terminate in

Upper sensory nucleus

The ascending fibers of the
central branches of the sensory root of the fifth cranial nerve convey

Tactile discrimination;
Passive movement; Sense of position

The main nucleus of the
fifth cranial nerve is with the

Dorsal trigeminothalamic
tract

The bulbospinal nucleus is
_______ and associated with __________________.

Ventral trigeminothalamic
tract and pain, temperature

The mesencephalic nucleus
convey the impulses from

Tempromandibular joint,
palate, Periodontal membrane and teeth, Stretch receptor from muscle fibers.
The nucleus conveys and interprets the proprioceptive impulses from all these
areas.

The smallest division of
trigeminal nerve is the

Ophthalmic nerve

The ophthalmic nerve leaves
the cranium through the

Superior orbital fissure

The anterior facial vein is
connected to cavernous sinus through

Superior ophthalmic vein;
Deep facial vein; Pterygoid plexus of vein

The upper pole of the
parotid gland is pierced by the

Auriculotemporal nerve;
Superficial temporal vessels; Temporal branch of facial nerve

Lower pole of parotid gland
overlaps the

Posterior belly of
digastric

The insertion of the medial
pterygoid muscle is into the

Medial surface of
mandibular ramus

The parotid duct pierces
the buccinator muscle and opens into the oral vestibule usually opposite the

Maxillary first-second
molar

The piriform recess is
located

On either side of the
larynx within the laryngopharynx

The recess above the
palatine tonsil is

plica semilunaris

The  recess posterior to the salpingopharyugeal
folds within the nasopharynx is

pharyngeal recess

Recess between
glossoepiglottic fold is

Vallecula

The sensory root of the
fifth cranial nerve arise from the

Semilunar ganglion