• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

Card Range To Study

through

image

Play button

image

Play button

image

Progress

1/53

Click to flip

Use LEFT and RIGHT arrow keys to navigate between flashcards;

Use UP and DOWN arrow keys to flip the card;

H to show hint;

A reads text to speech;

53 Cards in this Set

  • Front
  • Back
Evidence of plaque as etiological factor?
1) association of microbial plaque w/ gingivitis and periodontitis
2) specific bacteria for specific forms of perio disease
3) bacterai can damage tissue or activate tissue damiging host response
4) caries studies in gnotobiotic animals
What did the study by Loe et al demonstrate?
the relationship b/w plaque and gingivitis in humans

-subjects stopped brushing teeth and w/i 7-21 days everybody developed gingivitis.
-gram neg bacteria domianted
which tooth surface accumulates the least amount of plaque?
lingual
where does most plaque accumulate?
interproximals of posteriors
What is the percent reduction in plaque and gingival bleeding by powered toothbrushes?
11% plaque reduction
6% bleeding reduction
who benefits from powred tooth brushes
1) children and adolescence
2) children with disabilities
3) hospitilized patients
4) patients w/ fixed ortho appliences
who does not beenfit from powred toothbrudhes?
patients with rheumatoid arthritis, chronic periodontitis, and good brushers
what are some abrasives in dentrifices?
silicone oxides, aluminum oxides,granular polyvinyl chlorides, calcium pyrophosphates, and calcium carbonate.
what percent of dentrifices contain fluoride?
90%
what is the percent comp of surfactants in dentrifices?
1-3%
what is the percent comp of abrasives in dentrifices?
20-40%
hpw much faster is dentin abraded compared to enamel? what about cementum?
25 times faster than enamel
35 times faster than enamel
what is the percent comp of binders in dentrifices?
1-2%
what is the percent comp of humectants in dentrifices?
20-60%
function of humectants?
retain moisture and prevent hardening
what is the percent comp of water in dentrifices?
15-50%
what amount must flouride be present in dentrifices to be effective?
about 1000ppm
function of potassium nitrate and strontium chloride in dentrifices?
desensitizing agents
function of pyrophosphates in dentrifices?
anticalculus agents
how do anticalculus agents work?
interfere w/ crystal formation of calculus, but does not affect flouride in paste or increase tooth sensitivity.
-does not affect SUBGINGIVAL calculus
-does not affect EXISITING calculus
-reduce supragingival calculus by about 30%
function of zin in dentrifices?
-traps phosphates
-inhibits nucleation of calculus and coats crystal
function of gantrez?
-traps phosphates
-inhibits nucleation of calculus and coats crystal
function of triclosan?
anti-gingivitis agent

antibiotic?
types of stains:
1) intrinsic
-part of tooth structure
-not removable by mechanical action, but can be bleached

2) extrinsic
-tooth surface
-caused by food, drink, and smoking
-can be mechanically removed by prophy or abrasive dentrifices
what are examples of intrinsic staining?
1) TETRACYCLINE STAIN
2) FLUOROSIS
3) DISCOLORATION FROM AGING
what brushing technique for perio patients?
Bass technique (vibrating) w/ sulcular emphasis
brushing technique for kids?
scrub method
-horizontal
describe the Bass and Modified Bass methods of brushing:
1) place brush parallel to occlusal plane
2) bristles placed at ging. margin w/ 45% angle
3) firm back-and-forth brushing for 10 strokes.
---concentrates on apical 1/3 of crown and ging sulci
4) Modified bass-roll bristles toward occlusal
5) repeat above for next 3 teeth anteriorly until all surfaces and arches are done
6) redo everything for the occlusal surfaces
describe the Stillmen method of brushing:
same as Bass method, except the SIDES of the bristles are used instead of the ENDS!!
-penetration into ging sulci is avoided
-RECOMMENDED FOR PATIENTS WITH GINGIVAL RECESSION AND ROOT EXPOSURE
----PREVENTS ABRASIVE TISSUE DESTRUCTION
describe the Charters method of brushing:
bristles point 45 degress AWAY from gingiva.
-ends dont touch gingiva
-sides of bristles mussage gingiva to increase bloodflow

-SUITABLE FOR TEMP CLEANING IN AREAS OF HEALING WOUNDS AFTER PERIODONTAL SURGERY
where does perio usually develop?
interpoximals
specific interdental cleaning tools are recommended based on:
1) size of interdental space
2) presence of furcation
3) tooth alignment
4) presence of ortho appliances or fixed prosthesis
negative of dental floss?
often misses plaque on root groove surfaces and furcations
specific flosses are recommend based on?
tightness of tooth contacts
roughness of proximal surfaces
patients manual dexterity
dental floss technique?
-floss must contact line angle to line angle of proximal surface
-must glean subgingival area

1) grab 12-18 inch floss
2) move thru contact point via back-forth motion
3) wrap around prox surf and move to marginal ging
4) move across to adjecent tooth and do the same
5) rpeat for whole dentition
how low is the use of floss?
only 8%
what interdental cleaning devices are recommended for patients w/ perio or exposed root surfaces?
interproximal brushes and others
massaging gingiva causes
1) epithelial thickening
2) increased keratinization
3) increased blood circulation
4) increased mitotic activity

-not in sulcular epithelium and interdental gingiva
oral irrigator benefit?
-clean non-adherent bacteria and debris better than toothbrushes and mouthrinses
-distrupts and detoxified subgingival plaque
-can deliver antimicrobial agents into periodontal pockets
-particularly beneficial for ortho appliances and fixed prostheses
SUBGINGIVAL irrigation w/ H20 or chlorohexidine?
chlorohexidine diluted to 1/3 produces significant results.

water is not effective in flushing SUBGINGIVALLY
-it is effective for SUPRAGINGIVAL irrigation
is SUBGINGIVAL irrigation recommended for patients requiring antibiotic prophylaxis before dental treatment?
no, especially if inflammation is present b/c of transient bacteremia.

-SUPRAGINGIVAL irrigation IS recommended
is one-time SUBGINGIVAL irrigation at the dental office effective?
no, better during routine home use
difference b/w root surface vs crown surface?
root surface (cementum) has more organic material. once demin has occured, collagen is exposed.
--leads to rapid decay
what amoutn of flouride is more effective in dentrifices, 1000 or 5000?
5000ppm
patients with many caries or at high risk should use what conc flouride dentrifices?
5000ppm
what are the 2 ADA accepted agents for the treatment of gingivitis?
1) chlorohexidine digluconate
2) essential oils
chlorohexidine digluconate side effects?
1) brown staining
2) impairment of taste perception
what essential oils are used in oral rinses?
thymol, eucalyptol, menthol, and methyl salicylate
triclosan in toothpaste is more effective w/?
zinc citrate and copolymer of methoxyethylene
what is a disclosing agent?
stains bacteria to analyze oral hygene effectiveness
what is the Plaque Index of Silness and Loe?
more convenient plaque index that does not require staining.
what is the bleeding point index?
provides evaluation for gingival inlammation .

-prome 1mm into gingival sulcus and drag. wait 30sec and check for bleeding.
what is Targetted hygeine?
access to gingival margins of all tooth surfaces during brushing