Orofacial Anatomy :Complete Verified Questions with A+ Graded
Solutions Updated 2025\2026
Mucobuccal fold
Base of the vestibule where the buccal mucosa meets the alveolar mucosa
alveolar mucosa
Mucosa between the mucobuccal fold and gingiva.
buccal mucosa
Mucous membrane lining the cheek.
labial mucosa
the inner surface of the lips
mucogingival junction
Distinct line of color change in the tissue where the alveolar membrane meets with attached
gingivae
attached gingiva
gingiva that tightly adheres to the bone around the roots of the teeth
interdental papilla
sharp, pointed projection of gingival in between the teeth
Lingual frenum of tongue
-thin sheet of tissue
-attaches midline of ventral surface of tongue to floor of mouth
sublingual fold
ridge of tissue on each side of the floor of the mouth
sublingual caruncle
small papilla at anterior end of each sublingual fold
Classes of Teeth
incisors, canines, premolars, molars
arches of teeth
,maxillary and mandibular
primary dentition
consists of 20 teeth (A-T) that are normally lost during childhood and are replaced by the
permanent teeth
what teeth are missing in primary dentition
premolars
permanent dentition
consists of 32 teeth that are designed to last a lifetime
what are the 3 dentition periods
primary, mixed, permanent
FDI
uses dashes
ridges on teeth
linear elevations on all teeth
cusps
canine and posterior teeth one major elevation
how many cusps on a maxillary molar
2 buccal, 2 lingual, (5th normally on 1st molar)
how many cusps on maxillary premolar and a mand 1st premolar
2
how many cusps on a mand 2nd premolar
3 - 2 buccal, 1 lingual
Contact area
Where the proximal sides of two teeth come together and touch
Height of contour
The greatest distance around a tooth
, Embrasures are
The proximal spaces around a tooth, v-shaped valleys, part of the self-cleaning process
Line angle
Junction of two walls in a cavity preparation
point angle
Angle formed by the junction of three surfaces
How many line angles do anterior teeth have?
4
How many line angles are there in the posterior teeth?
8
How many point angles does each tooth have?
4
What do incisors do?
tear food
What do molars do?
grind food
What do premolars do?
pierce and crush
Shapes of teeth
triangle, pentagon, trapezoid, and rhomboid
gingival sulcus
space between the free gingiva and the tooth surface
where does attached gingiva begin
base of gingival sulcus
free gingiva groove
anatomical feature on outside of the gingiva
Solutions Updated 2025\2026
Mucobuccal fold
Base of the vestibule where the buccal mucosa meets the alveolar mucosa
alveolar mucosa
Mucosa between the mucobuccal fold and gingiva.
buccal mucosa
Mucous membrane lining the cheek.
labial mucosa
the inner surface of the lips
mucogingival junction
Distinct line of color change in the tissue where the alveolar membrane meets with attached
gingivae
attached gingiva
gingiva that tightly adheres to the bone around the roots of the teeth
interdental papilla
sharp, pointed projection of gingival in between the teeth
Lingual frenum of tongue
-thin sheet of tissue
-attaches midline of ventral surface of tongue to floor of mouth
sublingual fold
ridge of tissue on each side of the floor of the mouth
sublingual caruncle
small papilla at anterior end of each sublingual fold
Classes of Teeth
incisors, canines, premolars, molars
arches of teeth
,maxillary and mandibular
primary dentition
consists of 20 teeth (A-T) that are normally lost during childhood and are replaced by the
permanent teeth
what teeth are missing in primary dentition
premolars
permanent dentition
consists of 32 teeth that are designed to last a lifetime
what are the 3 dentition periods
primary, mixed, permanent
FDI
uses dashes
ridges on teeth
linear elevations on all teeth
cusps
canine and posterior teeth one major elevation
how many cusps on a maxillary molar
2 buccal, 2 lingual, (5th normally on 1st molar)
how many cusps on maxillary premolar and a mand 1st premolar
2
how many cusps on a mand 2nd premolar
3 - 2 buccal, 1 lingual
Contact area
Where the proximal sides of two teeth come together and touch
Height of contour
The greatest distance around a tooth
, Embrasures are
The proximal spaces around a tooth, v-shaped valleys, part of the self-cleaning process
Line angle
Junction of two walls in a cavity preparation
point angle
Angle formed by the junction of three surfaces
How many line angles do anterior teeth have?
4
How many line angles are there in the posterior teeth?
8
How many point angles does each tooth have?
4
What do incisors do?
tear food
What do molars do?
grind food
What do premolars do?
pierce and crush
Shapes of teeth
triangle, pentagon, trapezoid, and rhomboid
gingival sulcus
space between the free gingiva and the tooth surface
where does attached gingiva begin
base of gingival sulcus
free gingiva groove
anatomical feature on outside of the gingiva
