Etching, Sealants, and PRR Flashcards
What is the objective of sealants?
Eliminate area that harbors bacteria and prevent nutrients reaching bacteria in base of pit or fissure
What are two types of sealants?
Self curing
Visible light curing
is complete penetration of sealants neccessary?
nope.
- Were once used- NO MORE
- Not enough abrasion resistance
- Brittle
- Prone to fracture
Glass Ionomers
When is the ideal time to add sealants?
Soon after occlusal surface of tooth has erupted in oral environment
What is the key to placing sealants?
isolation:
Cotton rolls
Dry angle/parotid shield
Rubber dam
Isovac
- CHALKINESS
In tooth structure at base of the pit or groove - SOFTENING
In tooth structure at the base of pit or groove - BROWN DISCOLORATION
Radiating peripherally from the pit or groove - RADIOLUCENCY
Beneath enamel surface on radiograph - HIGH RISK CARIES
- IF THE ANSWER IS YES TO ANY OF THE ABOVE, CAN INDICATE DEMINERALIZED, DECALCIFIED, UNDERMINED or CARIOUS TOOTH STRUCTURE
visual exam
DECREASE bacterial habitation in pits and fissures and PREVENT caries in pits and fissures
sealant
t/F: Retained by MICROMECHANICAL RETENTION (board question). Sealants must be adequately retained.
True
t/f: Sealants are best retained on premolars
true
t/f: Upper molars receive the most benefit.
true
t/f: Children who receive sealants are 72% less likely to experience any restorative service over the next five years compared to those who received no sealant.
true
t/f: Occlusal surfaces are 5X more likely to decay than smooth surfaces - sealants prevent this
true
_____of sealants will require one reapplication
30%
10% will require _____ reapplications of sealants
2-3
