Sealants-Dr. Webb

Question 1

What are the 4 things required for caries formation?

Answer 1

• 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

Question 2

Caries: Primary modifying factors

Answer 2

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

Question 3

Caries: Secondary modifying factors

Answer 3

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

Question 4

Pit & Fissure Caries: Epidemiology/stats

Answer 4

• 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

Question 5

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

Answer 5

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

Question 6

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

Answer 6

• increased significantly from 24% 5o 28%

Question 7

What pulp horn is most prominent in primary teeth?

Answer 7

Mesiobuccal pulp horn

Question 8

Enamel rods: Primary teet vs Permanent teeth

Answer 8

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

Question 9

Primary vs permanent teeth

Answer 9

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

Question 10

Advantages of Rubber Dam Use

Answer 10

• 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

Question 11

Type of sealant material

Answer 11

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

Question 12

Sealant placement technique

Answer 12

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