Isolation of the operating
field
Dry field in oral
environment?
➢ Access
➢ View
➢ Setting of materials
What does complicate the
treatment?
➢ Saliva
➢ Cooling water spray
➢ Blood
Dry field management
Relative dry field
Absolute dry field
Relatively dry field
Cotton rollers
Cotton squares Cotton cups
Relative dry operating field
➢ Belvedere matrix
➢ Wooden wedges
➢ Minidam
d
◼ Ix
Wooden wedge
Access to the cavity
(retracts the gingiva)
Dry field
(stops bleeding)
- Matrix adaptation
(presses the strip tightly)
Absolutely dry oparating field
Rubber dam (kofferdam)
A membrane which isolates the operation field
from oral envionment.
Components
Punch forcep
Frame
Rubber
Clamp
Clamp forceps
Sheet
Benefits
◼ Protection of patient against gulp or aspiration
◼ Protection of dentist and assistant against infection
◼ Aseptic approach
◼ Absolute dry field
◼ Retraction of soft tissues
◼ Protection of soft tissues
◼ Better access to the operation field
RISKS
◼ Limitation of oral breathing
◼ Fear
◼ Latex allergy
◼ Aspiration or gulp of the clamp
◼ Damage of hard and soft tissues
Contact allergy
Rubber
Roll
Square (blank)
Perforation
Round aperture
Ainsworth
Ivory
Perforation plate
How big will the perforation be?
According to:
Size of the tooth
Thickness and kind of the rubber dam
Mode ofapplication
arch
wings
Arch, wings,
Clamps for retention
Clamps for retraction
Contact – areal 4 pointed
Rubber dam frame
Ligaturs
Latex rollers -
wedjets
How many teeth
should be isolated?
Mode of application
◼ Rubber first
◼ Clamp first
◼ Clamp and rubber dam together
◼ Application in seconds
Rubber first
Clamp first
Rubber and clamp together
Rubber, clamp and frame
together – application in seconds
Ligaturs
Latex rollers -
wedjets
Thermoplastic impression
material
Elongation of the clinical crown
before application od the clamp
Lubrication
Napkin
lenka.roubalikova@tiscali.
cz55
Modifications
➢ Optidam
➢ Optradam
➢ Minidam
lenka.roubalikova@tiscali.
cz56
Optidam
lenka.roubalikova@tiscali.
cz57
Optradam
lenka.roubalikova@tiscali.
cz58lenka.roubalikova@tiscali.cz
Minidam