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week 53 > Sealants-Dr. Webb > Flashcards

Flashcards in Sealants-Dr. Webb Deck (12)
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1

What are the 4 things required for caries formation?

  • Time
    • brushing frequency
  • Tooth/Host
    • biofilm formation
  • Bacteria
    • thorough cleaning
  • Fermentable carbohydrates
    • affects oral pH
  • important to explain to parents if we control and remove any of these, we can prevent caries

2

Caries: Primary modifying factors

  • Tooth anatomy
  • Saliva
  • Biofilm pH
  • Use of fluoride
  • Diet 
  • Oral hygiene
  • Immune system
  • genetic factors

3

Caries: Secondary modifying factors

  • Socioeconomic status
  • Education
  • Life-style
  • Enviroment
  • Age
  • Ethnic group
  • Occupation

4

Pit & Fissure Caries: Epidemiology/stats

  • by 11 y.o.
    • 40% caries in primary teeth
    • 20% caries in permanent teeth
  • 23% have untreated primary tooth decay
  • 11% have untreated permanent tooth decay
  • by 17 y.o.
    • 78% have experienced tooth decay
  • by 19 y.o.
    • 10% have lost at least one permanent tooth to caries
  • Progressive and cumulative effects of caries continue into adulthood
    • 95% of adults experiencing caries
    • 25% of seniors being edentulous

5

In most states, What perent of 3rd graders have experienced caries?

  • over 50% 
    • Ranging from 40% (connecticut) to 75% (arizona)

6

For 2-5 year olds, from the periods of 1988-1994 to 1999-2004, what happened to prevalence of caries in primary teeth

  • increased significantly from 24% 5o 28%

7

What pulp horn is most prominent in primary teeth?

Mesiobuccal pulp horn

8

Enamel rods: Primary teet vs Permanent teeth

  • Primary teeth
    • gingival 1/3 of crown extend toward occlusal from the DEJ
  • Permanent
    • gingival 1/3 of crown extend toward cervical

9

Primary vs permanent teeth

  • primary teeth
    • greater constriction of crown
    • more prominent cervical contour
    • broad, flat proximal contacts
    • narrows occlusal surfaces

10

Advantages of Rubber Dam Use

  • Better access and visualization by retracting soft tissue and proving a dark background
  • Moisture control
    • superior form of isolation
  • Improved safety 
    • prevent aspiration
    • swallowing foreign bodies
    • protect soft tissues
  • Decreased operating time
  • Children become quieter and more relaxed
  • Acts as a seperating barrier so perceived as less invasive
  • Becomes primarily nasal breather
    • enhances nitrous oxide admin

11

Type of sealant material

  • Glass ionomer
  • Compomer
  • Resin-Based sealants
    • unfilled
    • filled
    • clear
    • colored
    • light cured
    • chemically cured
    • fluoride-releasing

12

Sealant placement technique

  1. clean tooth
  2. etch w/acid
    1. post etch-frosty appearance
  3. Bonding (optional)
  4. Sealant placement
  5. Check polymerizatoin & for voids
  6. Check occlusion