Ortho, prosthesis, hypersensitivity, pulp testing quiz - seminar II

bone after extraction

may have bone resorption in residual ridges

bone tori/exostoses

may interfere with dentures

what are the risks if you don't replace missing teeth?

migration

added stress on remaining teeth

loss of vertical dimension

types of a fixed partial

traditional/bilateral

cantilever

implant supported

resin retained (maryland bridge)

what position may be needed to clean a fixed prosthesis?

charters

why should a pt rinse a rpd?

to remove debris when cleaning is not possible

how often should the pt brush their rpd?

twice a day with denture paste

obturator

used to close a congenitial/acquired opeing in the palate

when should you remove an obturator during an appointment?

radiographs

calculus/biofilm removal

treatment of natural teeth

complete denture

full denture designed to replace the entire dentition of an upper or lower arch

what solutions might be damaging to certain dental materials?

hypochlorite (bleach)

chemical solution cleansers

peroxide (loosen debris)

enzyme agents

hypochlorite

abrasive cleaners

denture pastes and powders

low abrasiveness

instructions for new denture wearer

gradually increase wear time

hypersalivation may occur

taste might alter

start with a soft diet and increase

chew on both sides

use caution with hot foods

recare time for prostheses wearers

1 year

6 months at minimum

arch wire use

distributes force and guide movement

elastomers use

hold wires in brackets

apply light, continuous force to close spaces

palatal expander

device used in orthodontics to widen the upper jaw

herbst appliance

fixed appliances that improves the overbite by encouraging lower jaw growth.

irregularly placed teeth are more...

susceptible to biofilm retention and more difficult to clean

ortho toothbrush recomendations

power brush: most effective

manual: soft or bilevel

ortho toothbrush method

sulcular

adapt to appliance

all surfaces

ligual and palatal

what might be used when polishing ortho patients?

air polisher

visual residual resin

appears dull and opaque

tactile residual resin

rought to explorer

may abrade explorer tip leaving a gray line

average total enamel loss after ortho removal?

55 µm

even greater when filled resins are used for bonding

outer surface of enamel =

fluoride-rich layer

what is common after ortho treatment?

demineralization

stimuli that elicit pain

tactile

thermal

evaporative

osmotic

chemical

fluid filled dentinal tubules extend...

from pulp to DEJ/DCJ

nerve fiber endings extend....

slightly beyond dentinopulpal junction

wind around odontoblastic process

stimulus at outer aspect of dentin causes...

fluid movement in dentinal tubules

fluid movement creates...

pressure on the nerve endings in the tubule

causes transmission of pain impulse by stimulating nerves in the pulp

natural desensitization

sclerosis of dentin

secondary dentin

smear layer

calc

trigger questions

what teeth/surfaces are sensitive?

on a scale of 1-10 (10 being the most) how strong is the pain?

how long does the pain last?

does it hurt when you bite down?

percussion

a method of examining a tooth by tapping the dentition with a solid object, such as the handle of an intraoral mirror, to evaluate tooth vitality

pulp testing

indicates if tooth is vital or nonvital

how to prevent nerve depolarization?

potassium based products

how to prevent stimulus from moving the fluid in the tubules?

occlusion of dentinal tubules; reduction of tubule diameter

dentinal tubule orifices increase...

three times original size when biofilm is present

potassium salts (desensitizing agent)

reduce the depolarization of the nerve membrane

potassium nitrate dentrifice containing fluoride available OTC

fluorides (desensitizing agent)

CaF₂ crystals within the dentinal tubule decrease lumen diameter

create a barrier by blocking open dentinal tubules

oxalates - potassium and ferric (desensitizing agent)

decrease the lumen diameter

block open dentinal tubules

gluteraldehyde (desensitizing agent)

decrease lumen diameter

can be combined with hydrophilic resin to seal tubules

calcium phosphate (desensitizing agent)

caries control, reduce demineralization

occludes dentinal tubule openings

aka novamin, MI paste (recaldent)

arginine and calcium carbonate (desensitizing agent)

occludes the dentinal tubules

mouthrinses

0.63% stannous fluoride

gels

5,000 ppm fluoride