Treatment of Trauma from Occlusion

Question 1

True of False

occlusal trauma may, under certain circumstances accelerate attachment loss

Answer 1

True

Question 2

True or False

immobilization is essentail for periodontal regeneration

Answer 2

True

Question 3

What are four reversible methods of occlusal therapy

Answer 3

night goals
extracoronal splints
muscle relaxants
muscle exercises

Question 4

What are four irreversible methods of occlusal therapy

Answer 4

intracoronoal splints
occlusal adjustment; selective grinding
ortho
orthognathic surgery

Question 5

What are five indications of occlusal adjustments

Answer 5

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

Question 6

What are five contraindications of occlusal adjustments

Answer 6

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

Question 7

What are the goals in occlusal adjustment

Answer 7

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

Question 8

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

Answer 8

centric relation

excursions

Question 9

What is limited occlusal adjustment by selective grinding

Answer 9

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

Question 10

What is a long centric occlusal adjustment

Answer 10

so that CR-CO is not an inclined deflective contact

Question 11

What is axial loading of forces occlusal adjustment

Answer 11

to prevent “jiggling” bucco-lingual forces

Question 12

In which three ways can you reduce wear facets

Answer 12

grooving
spheroiding
pointing

Question 13

It is important to not have these kinds of contacts

Answer 13

non-working contacts

Question 14

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

Answer 14

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

Question 15

What are the most ideal and the worst contact relationsips

Answer 15

ideal - cusp to fossa

worst - cusp to cusp

Question 16

Where are two centric relation interferences

Answer 16

mesial inclines maxillary

distal inclines mandibular

Question 17

If there is forward displacement, which inclines would you trim

Answer 17

mesial incline of maxillary

distal incline of mandibular

Question 18

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

Answer 18

flatten maxillary mesial incline

Question 19

How would you correct incline to incline contact

Answer 19

recontour both maxillary mesial incline and mandibular distal incline

Question 20

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

Answer 20

trim the maxillary centric cusp; spheroid the maxillary palatal cusp

Question 21

How would you correct a premature contact in central only

Answer 21

deepen the fossa

Question 22

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

Answer 22

recontour both cusp inner inclines (not cusp tips)

Question 23

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

Answer 23

recontour both cusp inclines

Question 24

As a general rule, do not reduce this

Answer 24

a holding cusp tip; just adjust the inclines

Question 25

When are you only able to flatten the cusp tip

Answer 25

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

Question 26

Why is "balancing" not desired

Answer 26

they can cause lateral forces

Question 27

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

Answer 27

PUBL palatal upper buccal lower (inner inclines)

Question 28

What are four characteristics of working side contacts

Answer 28

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

Question 29

What is the rule to adjust the working side contacts

Answer 29

BULL buccal upper lingual lower inner inclines

Question 30

What are two characteristics of protrusive contacts

Answer 30

should have anterior guidance | no posterior interferences

Question 31

What are the three steps for recontouring anterior teeth

Answer 31

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

Question 32

What are the steps of the polishing sequence

Answer 32

green midgets brown midgets fine polish patient comfort

Question 33

What is the direction of a CR-CO deflection

Answer 33

mandible guides anterior and vertical

Question 34

What is the usual correction for a CR-CO deflection

Answer 34

mesial inclines maxillary | against distal inclines mandibular

Question 35

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

Answer 35

periodontal splints

Question 36

What are two indications of periodontal splinets

Answer 36

``` 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 ```

Question 37

What is the outcome of periodontal splints

Answer 37

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

Question 38

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

Answer 38

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

Question 39

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

Answer 39

amalgam/composite reinforced splint | provisional crowns splinted together

Question 40

What are two examples permanent extracoronal splints; no tooth preparation

Answer 40

swing-lock partial denture | bite-plane