Dental Biofilm and other soft deposits

What are some soft deposit types

Acquired Pellicle, Bacterial Biofilm (plaque),Materia Alba,Food Debris

Acquired Pellicle

ha tis aquire pellice function?

Keeps teeth moist

Aquire pellie is what

Protien layer , base layer

How fast does ap reform

at least 30 mintues sometimes faster

Bacterial Biofilm def

A dense, nonmineralized, complex mass of bacterial colonies and other oral

microorganisms in a gel-like intermicrobial matrix

What microogramisj does it have in Bacterial Biofilm

yeast, viruses, protoza, and others

What does biolfilm form to

Adheres firmly to the acquired pellicle, teeth, calculus and restorations

Distribution of biolfilm is found wherw

A stagnation sites anywhere were its hard to distrupt

Machenical distruvtion Mechanical destruction

brushing, chewing, eating, moving the mouth

What are some stagnation sites

Proximal surfaces

 Gingival margin

 Mispositioned teeth

Where do we see biofilm the heaviest

Mandibular arch

Wher edo we see biofil the least

maxillary lingual

What are some factors that increase biofilm formation

Rough surfaces

 Restorations

 Calculus

What is the only way to remove biofilm

mechanical actions such as toothbrushing, flossing, and polishing

Materia Alba

looks like cotage cheese

Materia alba lyes ontop of biofilm

Materia alba def

Loosely adherent,

unstructured white or

grayish white mass of

oral debris and

bacteria which lies over

dental biofilm.

How to remove materia alba

does need mechanical distrubtion it can be removed with vigorous rinsing and water irrigation

What water irragartion can get rid of

What is the Significance of ← listen to audio

Both despoist biofilm and material alba contibe to what

gingival inflammation, continuation and formation of each other

How can the tissue be

returned to health?

remove the deposit and encourage good oral health brishing and cleaning for at least 2 weeks consitant

Food Debris

What is biorfilm formation

begins with pellice forms on the tooth surface begins withinh 30 mins → bacterial attach to pellicle→ bacteria mutiply in colonies→ colonies increase in # and sizes→ collonies join together→ bateria grow and for a new layer of bacteria→ mactrix form

Biofilm components

80% of bioflim is water

Maxtrix formation

What does the salSalivary constituents form

Proteins, Carbohydrates, Lipids that

form a polysaccharide-protein complex

submarginal biofilm will not have ← listen to audio entire slide 14 no question

wont have to salivary components

What are inorganic compenets

Calcium

 Phosphorus

Magnesium

 Potassium

 Sodium

fluroide

The highest level of inorginac compounds are

calcium and phosphorus

What increase the presents of fluriode in the body

Amount present increases with

use of fluoridated water and

topical application

How does dental biofilm form

first gave epithesEpithelial cells and a few cocci

How does dental biofilm form day 1-2 days with no distrubtion

Masses of cocci and short rods form

It takes how long to see gingival change

1-2 weeks

How does dental biofilm form day 4-7 days with no distrubtion

Filamentous bacteria and

leucocytes/fusobacteria appear

What happens ro the dental biofilm form day 2-3 weeks with no distrubtion

ibros and spirochetes are prevalent along

with cocci and filamentous

 Filamentous densely packed tuft like groups

 Gingivitis clinically evident

When does acute gingivis appear

about 2-3 weeks

How can you get rid of actue givitivis

Effective brushing for 3-5 days

Healthy mouth bacteria

cocci and rods

Inflammed bacteria in the mouth

lus filamentous, vibrios, spirochetes

Molbiel bacteria is most causing what? ← listen to the audio for slide 18

Pattern of ogranixation goes from ← listen to audio and make sure to write down

Highly active (motile) bacteria

is a concern

What does the present of white blood cells being present means ← listen to audio

it knows that there is bacteria inn the mouth,

subginigival biofilm

Complex anaerobic microorganism can not sueveive with

being exposes to oxygen use a water flosser, hydrtp prroxide

What weakens to immune ystem and can cause bone distrubtion as well

Nutrients are obtained from gingival sulcular fluid ← audio

Biofilm is a product of what

bacterial growth

Where do hard and crunchy food affect the most on the teeth

the occlusal and incisal third of the crown

What increase biofilm formations

surcose, table sugar

soft diets tend to adhence what

biofilm accumlation

Dental caries defintion

Decalcification of the

mineral components and

dissolution of the organic

matrix of the enamel,

dentin, and cementum

When dematerialization out way reminielartion that makes of reminiscence

dental caries

What is requires to have a dental carie

Susceptible tooth surface, Specific microorganisms, Cariogenic food stuff source, actual sugar, lactovisile, and

For decay its nsugar;ot the amount of sugar, it's eaten at ones but its actual how often you are eating these sugars

reminizaltion takes

3 hours at a neutral pH

You need long stretches of not eating food, which will delay caries

nocariogentic food sourecs are what ex gove ex:

What are the effects of sucrose

get unto plaque

what is biofilm broken doen by

acid-producing bacteria

What causes tooth demineralization

Acid is released into biofilm

The frequents occurance of biofilm and acid makes caries

Repeated/frequent exposure to biofilm acids

cause caries

What sis the critical ph of eneamel

5.5

When ph gets to 5.5 of the enamel the enamel is breaking down

it takes 1-2 hours to return to neutral/normal pH

Frequency of carbohydrate intake effects

A little frequently is more detrimental

What is the singke most important etoligical (cause) factor in most periodontal disease

dental biofilm

What has a direct impact in periodontal diesease

enzymes and other toxic products manufactured or relesased by bacteria and have direct influence on periodontal disease

products of bacterial metabolism can be

toxins, acids

What does high ph of bioflim cause?

What is the role of fluoride in biofilm

High concentrations of fluoride in biofilm can kill bacteria and counteract the effects of biofilm. Having fluoride also helps with remineralization to occur

tissue response ← listen to audio