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Flashcards in 1-5 Deck (52)
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31

Caries---summary

  • Multi-factorial
  • Bacterial driven
  • Chronic
  • Imbalance in physiologic equilibrium
  • Dynamic
  • LifestyleAssociated/ Behavioral
  • Mostly preventable
  • Highly prevalent

32

Tooth changes due to environment, habit, or systemic

-alter morphology of erupted teeth
-brushes abrade, teeth grind, acids erod
---combination or overlap

33

1-Abrasion
2-Attrition
3-Erosion

1-tooth brush, oral piercings, tobacco use
2-bruxism (grinding), food/diet
3-extrinsic/intrinsic

34

Abrasion Effects

-physical wearing away of tooth by objects other than food and the opposing dentition
-vshaped notched at cervical (also gingival recession) or isolate notech on incisal/occlusal
-can lead to dentin hypersensitivity 

35

Abrasion Causes

-toothbrushing w/ hard bristle
-abrasive dentifrice (toothpaste)
-parafunctional---use teeth for other things (tooth pick, as a tool)
-nail biting
-oral piercings
-tobacco

 

36

Oral Piercing Abrasion

37

parafunctional abrasion

38

toothbrushing abrasion

39

Tobacco Abrasion

 

40

Abrasion prevention/treatment

-use soft bristled brush
-good toothpaste, dentifrice
-fluoride
-tobacco prevention
-counseling against piercing
-remove piercings

41

Attrition

-Physical wearing away of tooth structure due to tooth on tooth contact or during mastication of foods 
-Bruxism= soreness with TMJ, headaches, broken teeth, + gingival recession

  • proximal contacts can be worn away 

42

Attrition Bruxism

-stress reduction
-Occlusal guard
-botox injections 

43

Attrition---Bruxism 

44

Attrition- Bruxism

45

Diet Related Attrition

46

Attrition Prevention/Treatment

-Bruxism=stress reduction, occlusal guard, change in medication
-food= change in diet, change in handling of food, and source of food

47

Erosion Effects

-loss of tooth structure by dissolution 
-teeth were dentin has been exposed by abrasion or attrition may have erosion
-"cupping"---appearance of soft dentin eroding faster than enamel
-restorations that are resistant to erosion than surrounding tooth= rising out 
-dentin hypersensitivity

48

Erosion

49

Erosion Causes

-Extrinsically---soft drinks (carbonated), fruit juice, sports drinks, vinegar, wine, work environment

-intrinsic---regurgitation, vomiting

50

Erosion Dynamics

-salivary pellicle---protective function against acid
-pellicle= physical and chemical barrier
-Ca and P in pellicle buffer the acids and replace mineral lost
-when protective system is overwhelmed= dissoltion

51

Erosion from intrinsic Acid
---from vomiting, usually on lingual surface= translucent 

52

Erosion Prevention/Treatment

-Reduce consumption of erosive fluids
-dont brush until after 30 min
-avoide erosive environ
-Bulimia 
- drinking water
-fluoride