LESSON 7

Question 1

Radiographically, enamel will appear as a radiopaque structure of the tooth

Answer 1

Enamel, Dentin and Pulp

Question 2

appears as less radiopaque area at the cervical area of a tooth due overexposure of the lateral portion of the teeth between enamel and alveolar crest.

Answer 2

Cervical burnout

Question 3

a less radiopaque structure found at the apex or sometimes 2mm.

Answer 3

Root canal opening (Apical foramen)

Question 4

a radiopaque structure that lines the root of every tooth present.

Answer 4

Lamina dura

Question 5

is radiopaque area that represent the gingival margin of the alveolar process

Answer 5

Alveolar crest

Question 6

a radiolucent area that surrounds the root of every tooth present in the mouth.

Answer 6

Periodontal ligament space

Question 7

radiopaque structures that shows the normal appearance of the surrounding bones

Answer 7

Bony trabecular pattern

Question 8

a radiolucent structure that is found in between the two maxillary central incisors.

Answer 8

Intermaxillary suture

Question 9

is seen as radiopaque v-shaped projection from the floor of the nasal aperture in the midline

Answer 9

Anterior nasal spine

Question 10

is a radiopaque structure above the anterior nasal spine

Answer 10

Nasal septum

Question 11

is a radiopaque structure below the nasal fossa.

Answer 11

Floor of the nasal fossa

Question 12

appears as an ovoid radiolucency between the roots of the maxillary central incisors.

Answer 12

Incisive foramen

Question 13

is a diffuse radiolucency in the region of the apex of the maxillary lateral incisor.

Answer 13

Lateral fossa

Question 14

is the largest of the paranasal sinuses that appear as radiolucent area

Answer 14

Maxillary sinus

Question 15

in a radiograph it appears as a u-shaped radiopaque line with its open end directed superiorly.

Answer 15

Zygomatic process

Question 16

is a radiopaque structure posterior to the maxillary tuberosity.

Answer 16

Hamular process

Question 17

in infants, appears as radiolucent line through the midline of the jaw

Answer 17

Mandibular symphysis

Question 18

appears as radiopaque mass in the midline below the incisor roots.

Answer 18

Genial tubercle

Question 19

it is an opening on the lingual surface of the midline of the mandible in the region of the genial tubercle.

Answer 19

Lingual foramen

Question 20

seen as radiopaque ridge on the anterior surface of the mandible.

Answer 20

Mental ridge

Question 21

is a radiolucent depression on the anterior surface of the mandible between the alveolar ridge and mental ridge.

Answer 21

Mental fossa

Question 22

appears as an oval radiolucency near the apex of the mandibular second premolar.

Answer 22

Mental foramen

Question 23

is a dark linear shadow (radiolucent) with thin radiopaque superior and inferior borders

Answer 23

Mandibular canal

Question 24

appear as radiolucent lines o f fairly uniform width

Answer 24

Nutrient canal

Question 25

appears radiopaque but quite difuse and of varable width

Answer 25

Mylohyoid ridge

Question 26

It is a continuation of the anterior border of the mandibular ramus.

Answer 26

External oblique ridge

Question 27

it is at lingual surface of the mandibular body

Answer 27

Submandibular gland fossa

Question 28

is characteristically dense, broad radiopaque band of bone.

Answer 28

Inferior border of the mandible

Question 29

it serves as reinforcement for a restorative materials.

Answer 29

Stainless steel pins

Question 30

obturating material use in endodontic treatment that appears radiopaque.

Answer 30

Gutta percha and silver points 3C

Question 31

generally appears radiopaque on radiograph.

Answer 31

Base material

Question 32

The coping of the crown is radiopaque since it is made of metal and the porcelain crown is less radiopaque.

Answer 32

Porcelain crown

Question 33

It is because silicate has no fillers and quarts which composite possess for reinforcement.

Answer 33

Silicate and composite restorative material