effects of trauma on dentition :)

Question 1

causes of trauma on primary dentiton

Answer 1

falls
bumping into objects
non accidental

Question 2

causes of trauma on secondary dentiton

Answer 2

sport
assault
road traffic accidents

Question 3

what is the most common primary tooth injury

Answer 3

luxation ie loosening of the tooth

Question 4

what is the most common affected teeth in primary/permanent

Answer 4

maxillary centrals for both

Question 5

what is the most common injury to permanent teeth

Answer 5

uncomplicated crown fracture (does not involve pulp)

Question 6

tooth fractures

Answer 6

enamel infraction
enamel fraction
uncomplicated enamel dentine crown fracture
complicated enamel dentine crown fracture
crown root fracture
root fracture

Question 7

enamel infraction

Answer 7

crack in enamel

bacteria can enter

Question 8

enamel fraction

Answer 8

break of enamel

Question 9

uncomplicated enamel dentine crown fracture

Answer 9

break involving enamel and dentine, not the pulp

Question 10

complicated enamel dentine crown fracture

Answer 10

break through enamel, dentine and pulp

reaching the pulp, more difficult to keep the tooth vital

Question 11

crown root fature

Answer 11

fracture going through the crown below the level of bone through the root

Question 12

root fracture

Answer 12

fracture within the root

Question 13

periodontal tissue injuries

Answer 13

concussion
labial luxation
subluxation
lateral luxation
avulsion
intrusion
extrusion

Question 14

concussion periodontal tissue injuries

Answer 14

tooth moves slightly in socket
not wobbly in the socket
pulp may heals, sensation may return

Question 15

labial luxation

Answer 15

loosened

move towards the left (palatal lunation would be to the right)

Question 16

subluxaton

Answer 16

loosening of the tooth, wobbled in socket

stays in the same place

Question 17

lateral luxation

Answer 17

loosened

tooth has gone sideways

Question 18

avulsion

Answer 18

tooth knocked out

Question 19

intrusion

Answer 19

tooth has been knocked in the way

Question 20

extrusion

Answer 20

tooth knocked out of th eay

not completely out of the socket

Question 21

soft tissue injuries

Answer 21

laceration
contusion
abrasion

Question 22

laceration

Answer 22

tear in mucosa

Question 23

contusion

Answer 23

bruise

usually cause by blunt object

Question 24

abrasion

Answer 24

rubbing or scraping

Question 25

long term effects of trauma to primary teeth

Answer 25

discolourtion
discolouration and infection
resorption and early exfolation
delayed exfoliation

Question 26

discolouration of primary teeth

Answer 26

bleeding in pulp can enter dentine tubles
may recover or stay
tooth still alive

Question 27

Discoloration and infection

Answer 27

• Pulp has died

- Inflammatory response leads to an abscess

Question 28

Resorption and early exfoliation

Answer 28

• PDL membrane can be damaged

signals do not go to osteoclasts to prevent them working, can lead to exfoliation

Question 29

delayed exfoliation

Answer 29

signalling system does not work

tooth can remain in the mouth for longer

Question 30

permeant teeth defects

Answer 30

enamel defects
abnormal tooth/root morphology
delayed eruption

Question 31

enamel defects in 2 teeth

Answer 31

primary tooth can hit cells of developing permanent tooth
leads o brown or white spots or voids
(voids may go brown due to food pigment)

Question 32

aboral tooth/root morphology

Answer 32

primary tooth could be forced on the permanent tooth

-crumpling of permannt

Question 33

delayed eruption permanent tooth

Answer 33

primary does not exfoliate properly

Question 34

what is a sinus

Answer 34

draining abcess

Question 35

enamel opacity or hypoplasia

Answer 35

omeloblasts get damaged orientation changes
leads to opacity
- enamel crystals not well packed therefore leads to voids

Question 36

dilaceration

Answer 36

primary tooth into permanent tooth
tooth at a right angle due to crumpling
root is not straight when it meets the crown

Question 37

odontoa

Answer 37

primary tooth has been pushed up too far

• cells have been mixed up
• no root formed as it has been pushed into the bone
• no root = comes out

Question 38

sequelae to trauma to 2 teeth

Answer 38

pulp death
inflammatory respobtion 
replacement resorption
pupal obliteration
tooth fracture

Question 39

trauma leading to pulp death

Answer 39

blood supply through apex can be compromised

tooth can die

Question 40

trauma leading to inflammatory respotion

Answer 40

inflammatory cells can eat tooth away to deal with abcess

Question 41

trauma leading to replacement respotion

Answer 41

singnal not sent from PDL membrane

tooth eaten away and replaced by bone and will eventually fall out

Question 42

trauma leading to pupal obliteration

Answer 42

pulp can be damaged but not to point of dying

can start raging prices quicker or internal replacement respotion

Question 43

trauma leading to tooth fractire

Answer 43

can break

more risk if pulp has died

Question 44

prevention to tooth injury

Answer 44

gum sheilds

helmets

Question 45

emergency managment for an avulsed permanent tooth

Answer 45

1 check for other important injuries i.e. head injury therefore go to A and E
2 where were they
recommend tetanus jab if in tooth was in toil
3 clean the tooth carefully and reimplant
or store in milk (or contact lens sol, saliva, coke or cordial better than water) until reimplanted
- push into socket slowly, allow blood to come out
DO NOT SCRUB - cells of PDL membrane will be scrubbed off