Radiographic Appearance Of Dental Anomalies

Front 1

Mesiodens?

Back 1

supernumerary between maxillary central incisors

Front 2

Parateeth?

Back 2

supernumerary in molar area

Front 3

Distodens?

Back 3

supernumerary distal to third molar

Front 4

macrodontia?

Back 4

teeth larger than normal

Front 5

Transposition?

Back 5

two teeth have exchanged position

Front 6

Fusion?

Back 6

combining of adjacent tooth germs leading reduced number of teeth

Front 7

Concrescence?

Back 7

Roots of two or more teeth are united by cementum.

Front 8

Gemination?

Back 8

tooth bud attempts to divide leading to invagination of crown

Front 9

Taurodontism?

Back 9

Longitudinally enlarged pulp leading to increased distance between CEJ and furcation

Front 10

Dilaceration?

Back 10

Disturbance in development leads to sharp bend or curve in the tooth.

Front 11

Dens in Dente (dens invaginatus)

Back 11

infolding of outer surface into the interior of the tooth.

Front 12

Dens Evaginatus?

Back 12

outfolding of the enamel organ leading to polyp like enamel on occlusal surface

Front 13

Amelogenesis Imperfecta?

Back 13

malformed or relative lack of enamel of nearly all the teeth

Front 14

dentinogenesis imperfecta

Back 14

roots and pulp chambers are generally small and under develped

Front 15

osteogenesis imperfecta

Back 15

brittle bones characterised by osseous fractures

Front 16

dentin Dysplasia?

Back 16

type 1 = the roots are short or abnormally shaped. The pulp chambers completely fill in before eruption. Periapical radiolucencies (cysts or granulomas)
Type II - pulp is obliterated after eruption

Front 17

Odontogenesis Imperfecta?

Back 17

ghostlike appearance. Large pulp chambers and wide root canals. Poorly outlined roots are short. Teeth that don't erupt are hypomineralised and appear to be resorbing.

Front 18

Enamel Pearl?

Back 18

Smooth round and of similar radiographic density as enamel.

Front 19

Talon Cusp?

Back 19

hyperplasia of the cingulum of a mindibular or maxillary incisor.

Front 20

Turners Hypoplasia?

Back 20

enamel irregularities appear as ill defined rediolucencies on the crown.

Front 21

Congenital Syphilis?

Back 21

30% of people with congenital syphilis develop dental hypoplasia involving permanent incisors (hutchingsons teeth - tapering at mesial and distal surfaces)and first molars (mulberry molars)

Front 22

Internal resorption?

Back 22

radiolucent and round, oval or elongated within the root or crown and continuous with the image of the root canal.

Front 23

External Resorption?

Back 23

smooth resoption of the tooth structure resulting in blunting of the root apex . Almost always the the bone and lamina dura follow the resorbing root and present a normal appearance around the shortened structure. Occasionally may involve lateral surfaces of roots.

Front 24

Pulp Stones?

Back 24

Foci of calcification on the pulp chamber. Radiopaque structure in the root canal.

Front 25

Pulpal Sclerosis?

Back 25

Diffuse calcification in the pulp chambers and canals . Generalised, ill defined collection of fine radiopacities throughout the pulp chambers and canals

Front 26

Hypercementosis?

Back 26

Excessive deposition of cementum on the tooth roots.