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SP15 Periodontology > Treatment of Trauma from Occlusion > Flashcards

Treatment of Trauma from Occlusion Flashcards

1
Q

True of False

occlusal trauma may, under certain circumstances accelerate attachment loss

A

True

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2
Q

True or False

immobilization is essentail for periodontal regeneration

A

True

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3
Q

What are four reversible methods of occlusal therapy

A

night goals
extracoronal splints
muscle relaxants
muscle exercises

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4
Q

What are four irreversible methods of occlusal therapy

A

intracoronoal splints
occlusal adjustment; selective grinding
ortho
orthognathic surgery

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5
Q

What are five indications of occlusal adjustments

A 
periodontal occlusal trauma
post ortho
prior to extensive restorations
certain types of TMD
certain wear patterns
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6
Q

What are five contraindications of occlusal adjustments

A 
severe malocclusion
non-ideal but well tolerated
severe wear or if occlusal adjustment would expose dentin
patient in pain
if no suitable endpoint can be reached
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7
Q

What are the goals in occlusal adjustment

A

occlusal stability over time
axial loading of forces
anterior guidance in excursions
smooth gliding unrestrained

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8
Q

What are the two types of comprehensive occlusal adjustment by selective grinding

A

centric relation

excursions

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9
Q

What is limited occlusal adjustment by selective grinding

A

mainly excursive movements; directed toward eliminating lateral “jiggling-type” forces

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10
Q

What is a long centric occlusal adjustment

A

so that CR-CO is not an inclined deflective contact

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11
Q

What is axial loading of forces occlusal adjustment

A

to prevent “jiggling” bucco-lingual forces

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12
Q

In which three ways can you reduce wear facets

A

grooving
spheroiding
pointing

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13
Q

It is important to not have these kinds of contacts

A

non-working contacts

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14
Q

What are the six steps in comprehensive occlusal adjustment by selective grinding

A 
CR-CO hit and slide
non-working side (balancing) interferences
working contacts
protrusive contacts
sharp or irregular incisal edges
polish all teeth that were adjusted
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15
Q

What are the most ideal and the worst contact relationsips

A

ideal - cusp to fossa

worst - cusp to cusp

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16
Q

Where are two centric relation interferences

A

mesial inclines maxillary

distal inclines mandibular

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17
Q

If there is forward displacement, which inclines would you trim

A

mesial incline of maxillary

distal incline of mandibular

18
Q

How would you correct a CR mandibular cusp tip to maxillary incline

A

flatten maxillary mesial incline

19
Q

How would you correct incline to incline contact

A

recontour both maxillary mesial incline and mandibular distal incline

20
Q

How would you correct a prematurity in centric, working, and non-working

A

trim the maxillary centric cusp; spheroid the maxillary palatal cusp

21
Q

How would you correct a premature contact in central only

A

deepen the fossa

22
Q

How would you correct a CR incline to incline contact on both maxillary and mandibular holding cusps

A

recontour both cusp inner inclines (not cusp tips)

23
Q

How would you correct incline to incline premature contact on maxillary palatal holding cusp

A

recontour both cusp inclines

24
Q

As a general rule, do not reduce this

A

a holding cusp tip; just adjust the inclines

25
Q

When are you only able to flatten the cusp tip

A

where there is cusp to embrasure relationship; then place the contact on flat areas

26
Q

Why is “balancing” not desired

A

they can cause lateral forces

27
Q

What is the rule to adjust the non-working side contacts

A

PUBL
palatal upper
buccal lower
(inner inclines)

28
Q

What are four characteristics of working side contacts

A

canine guided if possible
group function is acceptable if posterior teeth not compromised
cross tooth (lingual cusp) working slide contacts are interference
decrease frictional contact

29
Q

What is the rule to adjust the working side contacts

A

BULL
buccal upper
lingual lower
inner inclines

30
Q

What are two characteristics of protrusive contacts

A

should have anterior guidance

no posterior interferences

31
Q

What are the three steps for recontouring anterior teeth

A

round off uneven incisal edges
gain esthetic harmony
limited amount of by the amount of wear

32
Q

What are the steps of the polishing sequence

A

green midgets
brown midgets
fine polish
patient comfort

33
Q

What is the direction of a CR-CO deflection

A

mandible guides anterior and vertical

34
Q

What is the usual correction for a CR-CO deflection

A

mesial inclines maxillary

against distal inclines mandibular

35
Q

This is an appliance for the immobilization or stabilization of injured or diseased parts

A

periodontal splints

36
Q

What are two indications of periodontal splinets

A 
to immobilize excessively mobile (class II/III) teeth by sharing forces of more stabile teeth
to stabilize teeth in their new position after orthodontic treatment
37
Q

What is the outcome of periodontal splints

A

while they stabilize teeth, they do not decrease individual tooth mobility once the splint is removed

38
Q

What are four examples of provisional extra coronal splints; no tooth preparation

A

wire and acrylic/composite splints
acid etch composite splints
mesh splints attached by composites
cast splints attached by composite

39
Q

What are two types of provisional intracoronal splints; involves tooth preparation

A

amalgam/composite reinforced splint

provisional crowns splinted together

40
Q

What are two examples permanent extracoronal splints; no tooth preparation

A

swing-lock partial denture

bite-plane

SP15 Periodontology (9 decks)

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