Denture maintenance and hygiene Flashcards
What is the pellicle?
salivary glycoprotein and immunoglobulin
What does the pellicle act as a substrate to?
oral debris and microorganisms to adhere
What is the effect of certain bacteria and fungi converting sucrose to glucose?
glucose acts as a protective plaque covering under which they can proliferate
What do bacteria and fungi convert sucrose to?
glucose
When is sucrose to glucose and subsequent plaque formation favoured by bacteria and fungi?
when salivary flow rate is decreased and by rough or otherwise irregular surfaces
Why might elderly pts have reduced salivary flow?
they are on multiple medications
What does candida have affinity for in a denture?
adherence to methacrylate resin
Name bacteria found in denture plaque?
s. aureus
alpha strep
beta. strep
group D strep
assorted gram -ve
K. pneumoniae
e.coli
fusobacteria causes what oral symptom?
excrete volatile sulphur compounds (halitosis)
What systemic disease can denture bacteria cause?
pneumonia by ingestion
What percent of denture wearing present with stomatitis?
up to 60% denture wearers
What is denture stomatitis associated with?
night time wearers
what classification is used for denture stomatitis?
Newton classification
Newton type 1?
pin-point hyperaemic lesions (localised simple inflammation)
Newton type 2?
diffuse erythema confined to the mucosa contacting the denture (generalised simple inflammation)
Newton type 3?
granular surface (inflammatory papillary hyperplasia)
Newton type 1 advise to pt?
OHI
Treatment for denture stomatitis?
Types of denture cleaners?
mechanical
chemical
combination of both
Ideal properties of denture cleaner?
must be easy to use
effective in removal of denture deposits
bactericidal and fungicidal properties
non-toxic to pt
harmless to denture material
mechanical denture cleaner?
soap (liquid), water and soft brush
= effective at removing biofilm an debris
What side of the brush does what?
small side- inside surfaces of denture
larger side - teeth on denture
The main Chemical denture cleaners?
usually alkaline
can have hypochlorites of peroxides with their composition
Types of chemical denture cleaners?
When to use ultrasonic bath?
plaque build up on denture
Instructions for denture care?
Safety instructions for denture cleaning?
Water above what temp change property of acrylic?
50 dc
cleaning cocr?
soapy water
Where to find guidelines on cleaning denture?
British society for gerodontology
What causes a higher risk of developing caries with a p/p?
higher risk of caries and periodontal disease
Why does wearing a p/p increase plaque formation?
How to reduce plaque formation on the distoproximal surfaces?
prepare guide planes as close to he gingival margin as possible
What teeth in p/p have more plaque accumulation?
abutment teeth
preventative tx plan?
Time period where fluoride varnish is being up taken into tooth?
12-48hours
duraphat varnish?
sodium fluoride - 2600ppm
hardens on contact with saliva
advise to pt after applying fluoride varnish?
don’t eat or drink for the next 4 hours
don’t brush teeth until following day
types of fluoride varnish?
Alternatives to duraphat if pt is allergic or are asthmatic?
xylitol
How to use xylitol?
When to use phosphopepide-amorphous calcium phosphate?
root exposure and xerostomia
How to use phosphopepide-amorphous calcium phosphate?
it follows the use of fluoridated toothpaste twice a day using a cotton swab, finger or custom tray
How to stimulate salivary flow?
How often would you review a pt with a p/p?
every 6 months
high caries risk every 3 months
reapply fluoride varnish…
reactivate clasps
