tooth tissue loss

Question 1

what can tooth tissue loss be caused by

Answer 1

1) Attrition
2) erosion
3) abrasion
4) trauma
5) tooth tissue defects during formation
6) abfraction concept

Question 2

attrition

Answer 2

Wear due to tooth tooth contact

• affects mainly incisal/occlusal surfaces
• attrition is a natural part of aging, will continue throughout life

Question 3

what can cause attraction (other than natural)

Answer 3

1) Bruxisum and/or clenching
- habit
- can be compounded by different malocclusions eg class II incisors or cross bites
- loss of posterior teeth elads to loss of posterior support, anterior teeth do more work

Question 4

bruxism

Answer 4

Parafunctional activity of the muscles of mastication

• often whilst sleeping
• loud
• stress related

Question 5

how can you treat bruxism

Answer 5

• jaw exercise
• hard/soft splints/NightBiteGuards (coverings for the lower/upper arch)
• can refer to specliasts for treatment

Question 6

erosion

Answer 6

Tooth loss due to non carious acid dissolution

- initially of enamel then dentine

Question 7

where can acid come from

Answer 7

drinks
food
swimming
battery manufacturing ect

Question 8

erosion aetiology

Answer 8

Extrinsic factors
-	diet/occupational
-	soft drinks/sports drinks
-	alcohol
-	citrus fruit
-	pickles vinegar
-	occupational
Intrinsic factrs
-	bulimia
-	pregnancy (vomiting/acid reflux)
-	innless (vomit/acid reflux)

Question 9

abrasion

Answer 9

tooth wear due to contact with food or other objects

Question 10

trauma aetiology

Answer 10

• falls
• bikes
• swings
• contact sports
• non accidental injury
• increased overjet is a risk factor, teeth pre othro eg in class 2 can be at risk of fracture
• most common in 8-10 year old boys
• mouthguards can prevent this