Moisture control/ dental education in india

MOISTUREMOISTURE
CONTROLCONTROL
INDIAN DENTAL ACADEMY
Leader in continuing dental education
www.indiandentalacademy.com

DefinitionDefinition
• Refers to exculding sulcular fluid, saliva
and gingival bleeding from the
operating field.
• Refers to preventing the hand piece
spray and restorative debris from being
swallowed or aspirated by the patient.

NEED FOR FLUID CONTROL ANDNEED FOR FLUID CONTROL AND
HEMOSTASISHEMOSTASIS
Hydrophillic material Hydrophobic material
Increased wettability Decreased wettability
Decreased contact
angle.
Increased contact
angle.
Toloerate and displace
moisture
Do not tolerate and
displace moisture.

• Dry, clean operating field.
• Access and visibility.
• Enhance the properties of dental
materials.
• Protection of the patient and operator.
• Increases operating efficiency.
• Successful impression making.

IMPORTANCE OF MOISTUREIMPORTANCE OF MOISTURE
CONTROL IN IMPRESSION MAKINGCONTROL IN IMPRESSION MAKING
• Irreversible hydrocolloid (alginate)
• Reversible hydrocolloid(agar-agar)
• Poly ether elastomers
• Polysulfide
• Addional polyvinyl siloxane
• Condensation polyvinyl siloxane
HYDROPHILLIC
MATERIALS
HYDROPHOBIC
MATERIALS

• DONE BY-
– RUBBER DAM.
– HIGH VOLUME EVACUATOR
– SALIVA EJECTOR
– SVEDOPTER
– ABSORBENTS
– ANTI SLILOGOGUES

RUBBER DAM-RUBBER DAM-
ARMAMENTARIUMARMAMENTARIUM

RUBBER DAMRUBBER DAM
• Most effective of all isolation deviceMost effective of all isolation device
especially in restorative dentistry.especially in restorative dentistry.
• Limited application in cast restorationLimited application in cast restoration

HIGH VOLUME EVACUATORSHIGH VOLUME EVACUATORS
• Used in preparatory phase along withUsed in preparatory phase along with
an assistantan assistant
• Suction of water and debris from theSuction of water and debris from the
mouth.mouth.

SALIVA EJECTORSSALIVA EJECTORS
• Removes saliva that collects on the floorRemoves saliva that collects on the floor
of the mouthof the mouth
• Placed in corner of mouth opposite toPlaced in corner of mouth opposite to
the quadrant being operatedthe quadrant being operated
• Disposable inexpensive plastic materialDisposable inexpensive plastic material
preshaped according to operators usepreshaped according to operators use
• Used effectively by lone dentistUsed effectively by lone dentist

SVEDOPTERSVEDOPTER
• Function both as saliva ejector andFunction both as saliva ejector and
tongue retractortongue retractor
• Consists of metal saliva ejector withConsists of metal saliva ejector with
attached tongue deflectorattached tongue deflector
• Used effectively in mandibularUsed effectively in mandibular
teethteeth

DRAW BACKSDRAW BACKS
• Reduced access to lingual surfaces ofReduced access to lingual surfaces of
mandibular teethmandibular teeth
• Bruises tender soft tissue in floor ofBruises tender soft tissue in floor of
mouthmouth
• Cannot be used in presence ofCannot be used in presence of
mandibular torimandibular tori

ABSORBENTSABSORBENTS
• Cotton rolls and cellulose wafersCotton rolls and cellulose wafers
• Used in short periods of isolationUsed in short periods of isolation
• Along with saliva ejectors reduces salivaryAlong with saliva ejectors reduces salivary
flowflow
• PLACEMENTPLACEMENT
– Maxillary teeth - Adjacent vestibuleMaxillary teeth - Adjacent vestibule
– Mandibular teeth - Between teeth andMandibular teeth - Between teeth and
tonguetongue

ANTI SIALOGOGUESANTI SIALOGOGUES
• Gastro intestional anti cholinergics acting onGastro intestional anti cholinergics acting on
smooth muscles and biliary tractsmooth muscles and biliary tract
• Produces dry mouth as side effectProduces dry mouth as side effect
• Serves in patients with ineffective isolationServes in patients with ineffective isolation
by mechanical devicesby mechanical devices

DRUGS USEDDRUGS USED
• Methantheline bromide - BanthineMethantheline bromide - Banthine
• Propantheline bromide - Pro banthinePropantheline bromide - Pro banthine
• DOSAGE;-DOSAGE;-
– ORAL ROUTE :.ORAL ROUTE :.
• PROBANTHINE - 15 MGPROBANTHINE - 15 MG
• BANTHINE - 50 MGBANTHINE - 50 MG
– One tablet 1 hour before appointmentOne tablet 1 hour before appointment
produces unpleasent bitter tasteproduces unpleasent bitter taste

INTRA ORAL INJECTIONINTRA ORAL INJECTION
• PropanthelinePropantheline -- 2-6 mg2-6 mg
• Onset of actionOnset of action -- 5-10 minutes5-10 minutes
• Duration of actionDuration of action -- Approximately 1.5hoursApproximately 1.5hours
• Drying effectDrying effect
prolonged by injectingprolonged by injecting
propanthelinepropantheline -- 2-3 mg after 1.5 hours2-3 mg after 1.5 hours

CONTRA INDICATIONSCONTRA INDICATIONS
• Drug hyper sensitivityDrug hyper sensitivity
• GlaucomaGlaucoma
• AsthmaAsthma
• Obstructive disorders of gastro intestinalObstructive disorders of gastro intestinal
tracttract
• Congestive cardiac failureCongestive cardiac failure
• Lactating mothersLactating mothers

OTHER DRUGSOTHER DRUGS
• Clondine hydro chlorideClondine hydro chloride : 0.2 mg 1: 0.2 mg 1
hour beforehour before
thethe
appointmentappointment
• Side effectsSide effects : Sedation: Sedation

HAEMOSTASISHAEMOSTASIS
• It is a method of controlling bleedingIt is a method of controlling bleeding
from gingiva.from gingiva.
• Delivered in the gingival sulcus throughDelivered in the gingival sulcus through
retraction cords which are impregnatedretraction cords which are impregnated
with hemostatic agentswith hemostatic agents

HAEMOSTATIC AGENTSHAEMOSTATIC AGENTS
• Racemic epinephrineRacemic epinephrine - 8%- 8%
• Alum solution ( potassium aluminium sulfate)Alum solution ( potassium aluminium sulfate) - 100%- 100%
• Aluminium sulfate / chloride solution - 5-25 %Aluminium sulfate / chloride solution - 5-25 %
• Ferric sulfateFerric sulfate - 13.3 %- 13.3 %
• Tannic acidTannic acid - 20-100 %- 20-100 %
• Ferric sub sulfate (monsel’s solution)Ferric sub sulfate (monsel’s solution)
• Zinc chloride solutionZinc chloride solution - 8- 40 %- 8- 40 %
• Negatol solutionNegatol solution - 45%- 45%

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Moisture control/ dental education in india

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