Prevelance And Impact of Disease Flashcards
(28 cards)
What is DMFT
decayed, missing, filled, teeth
Details present caries experience
Previous treatment of caries
What problems lie in DMFT
Hard to establish reasons for missing teeth- congenitally missing, xla re. Or tho or xla re. Caries?
Irreversible- no good for measuring beneficial interventions
Combines past tx with current disease- hard to establish if past treatment for caries
Components are unequal in impact. Xla not equivalent to filling
What are the 4 things required for caries to occur
Susceptible tooth
Plaque bacteria
Sugar- ferment able carbohydrate
Time
How can you reduce risk with regards to the tooth
Improve diet
Add trace element- fluoride
Protective coatings- fissure sealants
How can you reduce risk re. Plaque bacteria?
Chemical/ mechanical removal
How can you reduce the risk re. Sugar?
Improve diet
Restrict ferment able carbohydrates
How can you reduce risks re. Time?
Avoid snacking
What is a common disclosing agent?
Erythrosin- red agent
Why are antibiotics not used as a plaque control method?
Disrupts natural flora. Candida albicans
Resistance
Hypersensitivity
Storage/ shelf life
What are the negatives of chx re. Plaque control
Staining
Taste disturbances
Parotid gland swelling
Disrupts oral flora
What is chx active on?
Gram -ve and +ve
S. Mutans more sensitive than s. Anguinis
What are STAMPS?
Specifically targeted anti microbial peptides
- anti microbial
- specific to certain bacteria eg. Strep. Mutans
What enzymes may be used re. Plaque control?
Why are they not widely used
Dextranases
Mucinases
Polysacharidases
Not very effective
Don’t store well in tp
Very specific
Hypersensitivity
What sweeteners are available to replaces sucrose
Xylitol- bulk sweetener
Encourages saliva flow
Reduces bacteria and acid production
Sacharinne- intensive sweetener
What are fissure sealants used?
To eliminate pits and fissures prone to caries
Why are pits and fissures prone to caries
Plaque accumulate and is hard to remove
Pits and fissures benefit less from topical fluoride
What are the advantages font issues sealants?
Prevents occult caries
Active caries can be sealed to stop progression
Tooth does not have to be cut
What are the disadvantages to tissues sealants
Hard to place
Require good cooperation and moisture control
Need to be monitored- lesions will progress if lost
What are indications for fissure sealants ?
High caries risk Pre cooperative for restorations Medically compromised Active fissure caries Deep fissures or pits
Describe the procedure for placing fissure sealant
Clean tooth Isolate Etch- 37% phosphoric acid Wash isolate Place sealant Cure
What material are conventional fissure sealants
Acrylic resin.
Bowens bisGMA
How do sealants stick?
Acid etch dissolves enamel creating tiny porosities
Resin flows into porosities binding the resin to the tooth on setting
Why are GI sealants considered less efficient
Wear quicker
Fall off more often
When are GI sealants useful?
Limited cooperation
Anxious individuals
Partially erupted teeth
