Chapter 36
Moisture Control
Oral Evacuation
• Saliva ejector
– Placed in patients mouth
• Preventive procedures, such as cleanings or sealants or
orthodontic bondings, etc.
• HVE
– Know how and where to place each
– Keeps the mouth free of saliva, blood, water and
debris
– Retracts tongue, cheek
– Reduces bacterial aerosol from handpiece
Oral Evacuation cont.
• HVE
– Has beveled end
– Grasps
• Thumb to nose grasp
• Pen grasp
• Understand the positioning of HVE for each area of
the mouth
Evacuation system
• Maintenance
– Follow infection control policies
– Flush the hoses at the end of the day
– Check disposable traps and replace when
needed
– Open saliva hoses and clean or replace the
screens as needed
Rinsing the Oral Cavity
• Limited area rinsing
– Performed frequently during procedure
• Full mouth rinsing
– Rinsing the patients entire mouth
– After long procedures
– Before dismissal
Air-Water Syringe
• 3 functions
– Air
– Water
– Spray, combination of air and water
• Understand the guidelines for Using the
Air-Water Syringe
Isolation of Teeth
•
•
•
•
Cotton roll isolation
Cotton roll holders
Dry-angle isolation
Before removing any of the above, water
should be applied, to loosen the cotton
from the mucosa, thus not damaging the
tissue
Isolation of Teeth
• Ideal conditions of a dental procedure
– Easy to apply
– Protective of the soft and hard tissues
– Comfortable for the patient
– Retraction provides better visualization for the
operator
– Prevention of moisture contamination
– Isolation of the area of concern
Dental Dam
• Dental Dam equipment
– Dental Dam material
• Comes in different sizes, thicknesses, colors
– Frame
• Plastic or metal
– Napkin
• Increases patient comfort
– Lubricants
• Placed on patients lips for comfort and moisture
Dental Dam cont.
• Dental Dam punch
– Creates holes in dental dam material
– The stylus is adjustable to different sizes of
holes
• 5 is the largest and used for the clamped tooth
• 1 is the smallest
– Dental Dam Stamp and template
• Predetermined markings
– Dental Dam forceps
• Used to place and remove clamps
Dental Dam cont
• Dental Dam clamps
– Anchors and stabilizes the dental dam
• Know the parts of the dental dam clamp
– Winged and wingless
• Understand the concept of removing the
rubber dam
Chapter 36
• Please be familiar with all the contents of
Chapter 36, Moisture Control.
• Successful test taking, starts with you
being prepared!!!! 