Chapter 36
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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

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Chapter 36

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Chapter 36

Chapter 36

Moisture Control


Oral evacuation

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

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

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

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

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

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 teeth1

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

  • 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 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 cont1

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 361

Chapter 36

  • Please be familiar with all the contents of Chapter 36, Moisture Control.

  • Successful test taking, starts with you being prepared!!!! 


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