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CJ Restorative 2 > management of tooth wear > Flashcards

management of tooth wear Flashcards

1
Q

what are pathological aspects of tooth wear?

A

excessive toothwear
attrition
abrasion
erosion

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2
Q

what are clinical signs of physiological attrition?

A

disappearance of mamelons
flattening of occlusal cusps
exposed dentine- cup shaped lesions

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3
Q

how does pathological attrition display?

A

confined to local areas

caused by parafunction - eg. bruxism

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4
Q

what is bruxism?

A

a parafunction
grinding and clenching
often associated with stress

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5
Q

what are signs and symptoms of bruxism?

A 
visable wear facets
abnormal rate of attrition
hypertrophy of masticatory muscles
muscle tenderness
TMJ pain
tooth mobility
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6
Q

how can bruxism be managed?

A

remove occlusal interferences

acrylic splint to protect teeth

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7
Q

how does dentine attrition occur?

A

rate of attrition higher than enamel

results in secondary dentine, protecting from sensitivity

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8
Q

what is abrasion?

A

pathological wearing away of tooth substance as a result of repetitive mechanical process or habit

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9
Q

what are signs of abrasion?

A

common in exposed root surfaces

notches in root surfaces

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10
Q

what types of abrasion are there?

A

cervical abrasion
habitual abrasion
iatrogenic abrasion

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11
Q

features of cervical abrasion?

A

v shaped groove

causes- horizontal brushing, abfraction

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12
Q

what is abfraction?

A

tooth flexure from occlusal loading
micro fractures in enamel
causes cavitaion

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13
Q

what is habitual abrasion?

A

localised to area of habit:
pipe smoking
wind instruments
hair pins

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14
Q

what is iotrogenic abrasion?

A

opposing teeth grinding to accommodate restorations

ceramic crowns

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15
Q

what is erosion?

A

progressive loss of dental tissue by acidic chemical processes without bacterial action

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16
Q

what are signs of erosion?

A 
can occur on any surface
polished and smooth
shallow depressions
proud restorations
palatal chipping of incisal edge
criss cross appearance
cupping of lower molar cusps
worse at cervical area
17
Q

what do signs of extrinsic erosion show?

A

labial surfaces of anterior teeth

occlusal of lower molars

18
Q

where do signs of intrinsic erosion show?

A

palatal surfaces of uppers

occlusal of lower molars

19
Q

what are causes of intrinsic erosion?

A 
reflux
vomiting
alcohol abuse
pregnancy
bulimia
hiatus hernia
gastric ulceration
20
Q

how can erosion be managed dentally?

A

remove cause
fluoride therapy
advise not to brush immediately after acid contact

21
Q

when may a restorative intervention be required re. NCTSL?

A 
poor aesthetics
loss of vitality
loss of function
sensitivity
compromised pulp

CJ Restorative 2 (19 decks)

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