Stains/Polishing/Plaque & Bleeding index (Final Review) Flashcards
Two types of stains include:
- extrinsic
- intrinsic
Surface stain:
extrinsic
Stain occurring within the tooth:
intrinsic
The following image shows:
Extrinsic staining
The following image shows:
Intrinsic staining
Sources of stain may be ____ or _____
exogenous or endogenous
If a stain is caused by factors external to the tooth (extrinsic or intrinsic):
Exogenous source
If a stain is caused by factors within the tooth (intrinsic always):
Endogenous source
An exogenous factor has the ability to cause what type of stain?
Extrinsic or intrinsic
An endogenous factor has the ability to cause what type of stain?
Intrinsic only
List some causes/examples of intrinsic stains:
- drug-induced (tetracycline)
- Tooth-trauma stain (necrotic pulp/pulpless tooth)
- restorative materials
- tooth development (fluorosis, hypoplasia, genetics)
Yellow stains are ___ stains
extrinsic
What type of stain is being described?
-common in all ages
-associate with plaque accumulation
-typically related to poor oral hygiene
-source is typically food pigments
Yellow stain
What is the source of a yellow stain typically?
Food pigments
What type of stain is associated with poor oral hygeine & plaque accumnulation?
yellow stain
Green stains are ____ stains
extrinsic
What type of stain is being described?
-light to dark in color
-found within the plaque
-typically noted on facial cervical third of maxillary anteriors
-sometimes covered by materia alba or grayish debris
-caused by chromogenic bacteria, tobacco use, dark foods/drinks, and poor oral hygeine
Green stains
Where are green stains typically found?
within plaque on facial cervical third of maxillary anteriors
Dark green stain may:
become incorporated into tooth structure
Green stains causes: (4)
- chromo-genic bacteria
- tobacco use
- dark foods/drinks
- poor oral hygeine
What type of stain is being described?
-found along cervical 1/3 near gingival margin
-fine line that can be continuous or interrupted
-can appear black at pits/fissures
-attached via pellicle structure
-made up of microorganisms (gram + rods)
-common in women & children
-reforms after removal
Black line stain
A black line stain is a ____ stain
extrinsic
Where is a black line stain typically found?
along cervical 1/3 near gingival margin & may appear at pits & fissures