MAX

MAXILLARY RUGAE

raised areas of dense connective tissue in the

anterior 1/3 of the palate

MAXILLARY RUGAE

this area resists anterior displacement of the

denture and is a secondary support area

MAXILLARY RUGAE

plays an important role in speech

MAXILLARY RUGAE

the mucosal folds in the anterior region of the hard

palate

CORONOID PROCESS

allows the patient to open wide, protrude and go

into lateral movements

Flange

the borders of a denture

MINOR SALIVARY GLANDS

located in the posterior third of the hard palate

where the tissue is very glandular and displaceable

LABIAL FRENUM

folds of mucous membrane

LABIAL FRENUM

do not contain significant muscle fibers

LABIAL FRENUM

NO ACTION OF ITS OWN

LABIAL VESTIBULE

A “V” SHAPED NOTCH SHOULD BE

RECORDED DURING IMPRESSION MAKING

LABIAL VESTIBULE

IT IS DIVIDED LEFT AND RIGHT BY THE

LABIAL FRENUM

LABIAL VESTIBULE

ORBICULARIS ORIS ITS MAIN

MUSCLE WHICH FORMS THE OUTER

SURFACE

ORBICULARIS ORIS

THE MAIN

MUSCLE WHICH FORMS THE OUTER

SURFACE OF THE LABIAL VESTIBULE

BUCCAL FRENUM

dividing line between the labial and buccal vestibule

BUCCAL FRENUM

may be single or double

BUCCAL FRENUM

requires more clearance for its actions

orbicularis muscle

moves the buccal frenum forward

buccinator muscle

moves the buccal frenum backward

HAMULAR NOTCH

a narrow cleft that extends from the tuberosity to

the pterygoid muscles

HAMULAR NOTCH

distal limit of the buccal vestibule

HAMULAR NOTCH

situated between the tuberosity and hamulus of the

medial pterygoid bone

HAMULAR NOTCH

where the tensor veli palatini runs horizontally

POSTERIOR PALATAL SEAL

distal to the junction of the hard and soft palate at

the vibrating line

VIBRATING LINE

an imaginary line across the posterior part of the

palate

VIBRATING LINE

marks the movable and unmovable part of the soft

palate

MAXILLARY TUBEROSITY

an important primary denture support area

MAXILLARY TUBEROSITY

provides resistance to horizontal movements of the

denture

MAXILLARY TUBEROSITY

posterior convexity of the maxillary body

BUCCAL VESTIBULE

Extends from the buccal frenum to the hamular notch

HARD PALATE

its’ horizontal portion provides the primary stress

bearing area

HARD PALATE

consists of the two horizontal palatine processes

and appears to resist resorption

HARD PALATE

is not conducive to the stability and support of a

denture due to the inclined planes

INCISIVE PAPILLA

a pad of fibrous connective tissue overlying the

orifice of the nasopalatine canal

INCISIVE PAPILLA

pressure in this area will cause disruption of blood

flow and impingement on the nerve, causing patient

to complain of pain or a burning sensation

INCISIVE PAPILLA

its location serves as an indication as to the amount

of resorption that has taken place

INCISIVE PAPILLA

where the nasopalatine nerves and vessels passes

through

FOVEA PALATINA

usually two, slightly posterior to the junction of the

hard and soft palates

MAJOR PALATINE FORAMEN

the orifice of the anterior palatine nerve and blood

vessels

MEDIAN PALATINE RAPHE

extends from the incisive papilla to the distal end of the hard palate

SUBLINGUAL FOLDS

formed by the superior surface of the sublingual

glands and the ducts of the submandibular glands

EXTERNAL OBLIQUE LINE

ridge of dense bone from the mental foramen,

coursing superiorly and distally to become

continuous with the anterior region of the ramus

EXTERNAL OBLIQUE LINE

the attachment site of the buccinator muscle

EXTERNAL OBLIQUE LINE

anatomic guide for the lateral termination of the

buccal flange of the mandibular denture

SUPRAHYOID MUSCLES

function in elevation of the hyoid bone and the

larynx and depression of the mandible

ALVEOLOLINGUAL SULCUS

the space between the residual ridge & tongue .

ALVEOLOLINGUAL SULCUS

extends from lingual frenum to retromylohyoid

curtain

RETROMYLOHYOID SPACE

lies at the distal end of the alveolingual sulcus

RETROMYLOHYOID CURTAIN

is formed posteriorly by the superior constrictor

muscle, laterally by the mandible and

pterygomandibular raphe, anteriorly by the lingual

tuberosity of the mandible and inferiorly by the

mylohyoid muscle

BUCCAL SHELF AREA

extends from the buccal frenum to the anterior edge

of the masseter muscle

BUCCAL SHELF AREA

considered as a primary stress- bearing area

because it is covered by a layer of cortical bone, & it

lies at right angles to vertical occlusal forces

MYLOHYOID RIDGE

a bony prominence along the lingual aspect of the

mandible

MENTAL FORAMEN

the anterior exit of the mandibular canal and the

inferior alveolar nerve

MENTAL FORAMEN

can cause numbness on the

lower lip

GENIAL TUBERCLE

a pair of dense prominences at the inferior border

of the mandible at the lingual midline

GENIAL TUBERCLE

represents the muscle attachment of the

genioglossus and geniohyoid muscle

MANDIBULAR TORI

are lingual bilateral prominences of cortical bone

inthepremolar area.but they may extendposteriorly to

the molar area

MUSCULAR FORCES

these forces are exerted by the muscles of the lips,

cheeks and tongue upon the polished surface of the

denture and by the muscles of mastication indirectly

through the occlusal surface

PHYSICAL FORCES

these rely on the presence of an intact film of saliva

between the denture(impression surface) and

mucosa(ridge)