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Knowledge
• This study power point is to be used as an aid, to help you understand what to study
• To be successful, you must take accountability for your own destiny.– Which means that I give you this as a guide,
not a complete “answer key” for the test!
• Success should always be a goal.
Chapter 32
• Office Environment– Temperature– Lighting– Wall and Floor Coverings– Traffic Control– Sound Control– Privacy
Specific Areas of the Dental Office
• Reception area
• Administrative/business area
• Clinical treatment areas
• Sterilization center
• Dental Lab
• Dentist’s private office
• Dental staff lounge
Reception area
• Patients are received
• Greeted pleasantly and welcomed
• Cleaned everyday
• Adequate seating
• Current journals
• Play area
Treatment Area
• Also known as the Dental Operatory
• Usually two or more units
• Comfort and mobility for team
Clinical Equipment
• Patient Dental Chair– Designed for comfort– Patient seated with chair in lowest and upright
and arm rest raised
Stools
• Operator– large seat and back– Adjustable
• Assistant’s stool—provide stability, mobility and comfort– 4-6 inches higher than operator
Dental Unit
• Basic function– provide necessary electrical and air-operated mechanics
• Delivery systems– Can be mounted on the floor, wall or side
• Rheostat– Operates hand pieces
• Waterlines– Supplies water
Cont.
• Air-Water syringe-needed for every procedure– Delivers a stream of water– Delivers a stream of air– Delivers a combined spray of air and water
Operating Light
• Illuminates the oral cavity during procedures
• After patient is seated in supine position, light is positioned over patients chest approximately 25 to 30 inches below patients chin
Oral Evacuation system
• Saliva ejector
• High-volume evacuator (HVE)– Both used to remove water/debris from
patients mouth
Central Sterilization
• Used for maintaining dental instruments– Two areas
• Contaminated area• Clean area
Understand the following
• Dental Lab
• Private Office
• Staff lounge
• Morning and evening routines for assistants
Chapter 33Delivering Dental Care
• Understand how to prepare the treatment area
• Knowing your patient
• Reviewing their chart
• Treatment room checklist
Team Dentistry
• Theory—four-handed dentistry– Operator and assistant work together to
perform clinical procedures in an ergonomically structured environment.
– Main goal—to deliver the best and most effective care to your patient by increasing productivity
Goals of Team Dentistry
• Utilize ergonomically correct dental equipment• Utilize preset trays• Minimize stress and fatigue • Follow the principles of motion economy during
transfer of instruments and materials• Use appropriate moisture-control techniques • Delegate expanded functions
Team Positioning
• Patient– Lowered to supine position– Operator will make final adjustments
• Operator– Access and vision are most essential – Needs comfort and support– Seated as far back as possible, front edge of stool just touching
the backs of knees– Thighs parallel to floor– Feet kept flat on floor– Backrest of chair positioned to support– Height to maintained to allow forearms parallel to the floor
Cont.
• Dental Assistant– Anticipate what is needed next– Seated well back on stool– Feet resting on foot ring– Positioned as close as possible to dental chair– Legs parallel to patients chair– Eye level four to six inches above the
operator
Classification of Motion
• Class I—– Movement of fingers only
• Class II– Movement of fingers and wrist
• Class III– Movement of finger, wrist and elbow
• Class IV-– Use of entire arm and shoulder
• Class V-– Use of entire upper torso
Operating Zones
• Using the Clock concept understand the (time) zones.– Example transfer zone is 4 – 7 for right-
handed operator
• Always assume that you are working with a right-handed operator unless otherwise stated.
Instrument Transfer
• Four-handed dentistry is the concept that a qualified chair side assistant is seated across from the dentist and they work as a team
Objectives for Efficient Instrument Transfer
• In your book there is a list of the objectives, please be very familiar with these objectives
Grasps
• Pen grasp
• Palm grasp
• Palm-thumb grasp– You should be able to identify the grasp that
should be used with any given instrument– Understand the concept of the different grasp
Four-Handed Transfer
• You will need to know the method of four-handed instrument transfer– Including each type of instrument as well as
grasp
Expanded Functions Dental Assistants
• Understand the laws applying to EFDA’s
• Credentialing
• Dental Supervision
Identifying Instruments
• Instrument– Number– Design
• Handle, shank, working end
– Black’s Formula– Id the 1st , 2nd and 3rd number
Classification of Hand Instruments
• Examination instruments– examples
• Hand cutting instruments– examples
• Restorative Instruments– examples
• Accessory instruments– examples
Instruments
• You are responsible for knowing the names and uses of each instrument that we have covered in class
Hand pieces
• What types of hand pieces are there?
• What is the difference in the hand pieces?
• What type of burs are used in each?
• What type of attachments are there, and which hand pieces do the fit in?
Burs
• Name the different types of burs.
• What burs are used in what areas/procedures
• How do you know??
Hand pieces
• Maintenance– Know and understand the general
considerations for Hand piece sterilization
Burs
• Parts of a Bur– Shank– Neck– Head
• Straight shank--???
• Latch type shank--???
• Finishing burs, diamond rotary , abrasive rotary, laboratory rotary
Burs
• Carbide steel burs – Used in the operatory, in patients mouth
• Lab burs– Used in Lab to smooth or shape, models,
dentures, appliances, crowns, etc.