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22 Cards in this Set
- Front
- Back
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What type of tooth structure would benefit the most from sealants?
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Pits ans fissures.
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How many times more vulnerable are pits and fissures than smooth surfaces?
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8x
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Why cant tooth brushing alone clean pits and fissures?
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The diameter of the bristle is to large to fit into some of the more narrow spaces.
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How does microbiology enter into the reason pits and fissures are more vulnrable?
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Without the ability to clean the narrow spaces STREPTOCOCCUS MUTANS can set up shop.
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What are some indications for use of sealants?
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*Deep occlusal fissure, fossa or lingual pit
*Age 6-7 seal 1st permanent molars *Age 11-13 seal 2nd perm. molars *Susceptibility of tooth:Diet, Plaque mgmt, and Caries History |
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T/F:
Sealants are better retained on teeth with a more mature surface than on recently erupted teeth. |
False! :
Sealants are better retained on recently erupted teeth than teeth with a more mature surface. |
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What are the differences/ challenges in placing sealants on the 1st and 2nd molars?
Which is better retained? |
1st Molars are better retained.
*Typically they are easier to clean *They do not undergo as much abrasion *They tend to be more errupted |
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Why are sealants better retained on mandibular molars than on maxillary molars?
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Gravity-sealant is a liquid
Accessability |
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What are some contraindications for sealants?
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*Patient behavior negates dry-field; kid won't sit still.
*Open carious lesion. *Not fully erupted. *A large occlusal restoration already exists. |
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By what method are sealants retained on the tooth surface?
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They are retained by adhesive forces.
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What process is used to prep the tooth before the sealant is applied?
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The tooth surface is etched.
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T/F
1)Sealants cling better to teeth with deep, irregular pits and fissures. 2)Ironically deep, irregular pits and fissures are more likely to have decay. |
True / True
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What are the 2 most important requirements when preparing asurface for a sealant?
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Surface must be clean and dry.
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What are some of the reasons sealants are underused?
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Lack of insurance, DDS are treatment oriented, restrictions on auxiliary placement, lack of consumer knowledge of effectiveness, most DDS won't accept Medicaid, DDS afraid of sealing a carious leasion and disparities linked to race/income/education.
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What are some methods for cleaning the tooth surface when prepping to place a sealant?
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Air polishing
Hydrogen peroxide Polishing with pumice Brushing w/ a nonfloridated toothpaste Use of a laser |
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For sealant retention the tooth must have what?
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1. Max surface area
2. deep, irregular pits and fissures 3. be clean 4. be absolutely dry |
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What are tooth conditioners and why are they used?
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Tooth conditioners are echants. They are used to increase the surface areaand make it rough.
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What are some ways to maintain a dry field?
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Cotton rolls
bibulous pads over the parotid duct. |
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What are the 2 main types of sealants?
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Light-cured
Autopolymerized |
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Recent studies indicate an approximate __% retention rate of sealants 1 yr after placement.
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Recent studies indicate an approximate 90% retention rate of sealants 1 yr after placement.
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T/F
Even when sealants are eventually lost, most studies indicate that the caies incidence for the teeth is less than that of control surfaces that have never been sealed. |
True!
Even when sealants are eventually lost, most studies indicate that the caies incidence for the teeth is less than that of control surfaces that have never been sealed. |
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What are all the types of sealants?
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Glass ionomer cement
Sealants w/ bonding agents Self etching, light-cured sealants, Fluoride-releasing sealants Colored versus Clear sealants |
