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Trauma mod 6 > Trauma lecture 4 > Flashcards

Trauma lecture 4 Flashcards

1
Q

why review trauma cases

A

not all sequelae of trauma are immediate
may complications/side effects can occur months/years after incident

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2
Q

what kind of complicaitons in primary teeth can occur?

A

pulpal necrosis
pulpal obliteration
root resorption
damage to the successors

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3
Q

primary tooth pulpal necrosis- what to look for

A

persistent grey colour
no reduction in size of pulp cavity radiographically
radiographic signs of periapical inflammation
clinical signs of infection: tenderness, sinus, suppuration, swelling

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4
Q

what to do if signs of infection on a primary tooth

A

extract

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5
Q

primary tooth pulpal obliteration what to look for

A

tooth may become yellow/opaque colour
radiographically, pulp chamber will shrink

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6
Q

what to do with primary tooth pulpal obliteration

A

nothing if asymptomatic
extract is signs of infection

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7
Q

primary tooth resorption - what to look for

A

radiographic signs of root resorption
possible clinical mobility

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8
Q

what to do if primary tooth root resorption

A

extract if signs infection

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9
Q

what age is most damage to successor teeth

A

before 3 years of age

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10
Q

what injuries carry most risk to successor teeth

A

intrusive luxation

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11
Q

age of white/yellow brown enamel hypomineralsiation

A

2-7 years

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12
Q

crown dilaceration age

A

approx 2 years

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13
Q

odontoma like malformation

A

1-3 years

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14
Q

roto duplication age

A

2-5 years

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15
Q

what is root dilaceration

A

deviation of root shape from the normal long axis formation

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16
Q

radiographic signs of root dialceration

A

root malformation/change in angulation
delayed/ failed eruption

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17
Q

how to treat root dilaceration

A

surgical/ortho realignment or possible extraction

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18
Q

complications to permanent teeth

A

pulp necrosis
resorption
ankylosis
replacement resorption
external resorption
internal resorption

19
Q

permanet tooth pulpal necrosis - what to look for

A

no response to sensibility testing
grey discolouration
patient symptoms, histpry
radiographic signs of periradicaulr infection

20
Q

what to consider for treating permanent tooth pulpal necrosis

A

is there acute infection
does the tooth have a closed apex
how developed is the root

21
Q

if starting rct within 2 weeks of re-implanting an avulsed tooth, why not use calcium hydroxide

A

this may contribute to replacement resorption - ledermix is good to use

22
Q

why does calcium hydroxide do to dentine

A

degrades collagen structure weakening flexural strength of dentine over time. if possible only place for 2 weeks

23
Q

what to do if there is a closed apex

A

treat the same way as an adult tooth and start endo tx

24
Q

what to do if there is an open apex

A

need to create apical stop
MTA apical barriersvs calcium hydroxide apical barrier

25
Q

calcium hydroxide or MTA for apical barrier formation

A

MTA is the treatment of choice

26
Q

why not MTA over calcium hydroxide for apical barrier formation

A

higher incidence of cervical root fractures with CaOH

27
Q

how to identify reactionary dentine formation

A

pulp chamber and root canal shrinking
the may darken (yellowing) and have reduced responsed to sensibility testing

28
Q

how to treat permanent tooth reactionary dentine

A

monitor
only tx is signs of periapical inflammation/infection

29
Q

why does the tooth darken

A

thickening of dentine causes the tooth to darken

30
Q

what does the process of reactionary dentine indicate

A

the tooth is still vital

31
Q

types of permanent tooth resorption

A

inflammatory root resorption
external inflammatory resorption
cervical resorption
internal resorption
replacement resorption

32
Q

when does external inflammatory resorption occur

A

teeth that have necrotic pulp and associated infection

33
Q

what causes cervical resorption

A

damage to cervical region

34
Q

what is internal inflammatory resorption

A

infrequnet complication caused by chronic pulpal inflammation

35
Q

what causes internal inflammatory resorption

A

roto canal having necrotic, infected pulp

36
Q

what can internal inflammatory resorption be seen as

A

‘pink spot’ discolouration if the resorption affects coronal 1/3 of canal

37
Q

what is ankylosis

A

fusion of the root to the surrounding bone

38
Q

what is replacement resorption

A

process by which the root structure is removed and replaced by investing bone tissue

39
Q

how is replacement resorption different from inflammatory resorption

A

there is no infection or inflammation

40
Q

replacement resoprtion and ankylosis signs

A

no mobility
metalic tone on percussion

41
Q

9 tests for trauma

A

colour
ept
thermal test
transillumination
ttp
mobility
sinus
history
radiographic exam

42
Q

what is pulp vitality determined by

A

intact blood supply
not nerve supply

43
Q

how to treat root fractures

A

apical 1/3 and mid 1/3 - treat up to point of fracture
coronal 1/3 - splinting, extracting

44
Q
A

Trauma mod 6 (6 decks)

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