supragingival and subgingival irrigation

Question 1

objective of supragingival irrigation

Answer 1

diminish gingival inflammation by disrupting biofilms coronal to the gingival margin

Question 2

objective of subgingival irrigation

Answer 2

reduce the number of bacteria in the periodontal pocket space

Question 3

what is the dental water jet

Answer 3

device that delivers pulsed irrigation of water or other solution supra and sub gingivally

Question 4

dental water jet incorporates what two phases

Answer 4

compression and decompression phase

Question 5

the phases creates two zones of fluid movement called what?

Answer 5

hydrokinetic activity

Question 6

what are the two zones from the hydrokinetic activity

Answer 6

1. impact zone: intital fluid contact with an area of the mouth
2. flushing zone: depth of fluid penetration within a subgingival sulcus or perio pocket

Question 7

how deep does the dental water jet get into the sulcus

Answer 7

6 mm

Question 8

benefits of home irrigation

Answer 8

1. biofilm removal
2. bleeding reduction
3. perio pathogens reduction up to 6 mm
4. reduction in PGE2, cytokines, and loosely attached plaque

Question 9

indications for recommendation for water jet

Answer 9

1. on perio maintenance
2. individuals who are noncompliant with dental floss
3. individuals with special needs, dental implants, diabetes, or bridgework/crowns

Question 10

water as an irrigant features? advantages?

Answer 10

• tap water has been shown to be highly effective as an irrigant in numerous studies
• readily available, cost-effective, no side effects

Question 11

chlorhexidine as an irrigant

Answer 11

• diluted with water for home use
• available by prescription only
• max strength is .12 percent

Question 12

essential oils as irrigants

Answer 12

• example is listerine
• only effective when used at full strength
• available over the counter
• flush unit with water after use

Question 13

standard irrigation tip features

Answer 13

• made of plastic material
• place tip at 90 degree angle at the neck of the tooth
• use water spray to trace along gingival margin

Question 14

subgingival irrigation tip features

Answer 14

• has a soft rubber tipped end
• adjust water pressure to lowest setting
• slide rubber tip beneath the gingival margin and direct tip at 45 degree angle

Question 15

orthodontic irrigation tip features

Answer 15

• soft tapered brush that facilitates biofilm removal around ortho
• place tip at 90 degree angle

Question 16

rationale for subgingival irrigation

Answer 16

-disruption and dilution of bacteria and their products from within the periodontal pocket

Question 17

_____ application of in-office subgingival irrigation with an antimicrobial agent has been show to have only ____ or ____ beneficial effects over perio instrumentation alone

Answer 17

single

limited or no

Question 18

why is there no long term substantivity of antimicrobial agent in pockets?

Answer 18

due to continuous crevicular fluid flow and pocket serum proteins

Question 19

is routine in-office subgingival irrigation recommended? why?

Answer 19

no because bacteria are not eliminated and their numbers return to original levels in a short period of time

Question 20

subgingival irrigation performed before perio instrumentation may ____ the incidence of bacteremia and ___ the number of microorganisms in aerosols

Answer 20

reduce and reduce