MICRODELEGATION-    WORKING WITH CHAIR SIDE ASSISTANT 

INSTRUMENT GRIP AND INSTRUMENTTRANSFER.

Guide for instrument grip and instrument transfer.
the methods can best be learned by 50 repeated exercises made 3-5 times. In order to train specific movements-patterns so the become "automatizised" most dentists and assistants have to repeat the movements at least 150 to 300 times and sometimes more. The number of necessary repetitions is quite different. Taking that into account I have never experienced dentists and assistants who couldn't learn these movement pattern.

IF MOVEMENT-PATTERNS  SEEMS DIFFICULT TO LEARN,                                                                 REPEAT THEM TILL YOU FIND IT EASY.

Many - especially dentists - give up  to learn movement-patterns ,  that could be learned using say 3 more training sessions of 10 minutes !! 

With kind regards and good luck-
Herluf Skovsgaard, dentist, consultant and lecturer in ergonomics

Assistant use suction and syringe,- to retract soft tissue, to
clean mouth, to dry cavity or to dry mirror, when dentist is
working with mirror and spray,at the same time.

25 cm between micromotor-contra-
angle and the mouth of the patient.

dentist takes unitinstrument
with a finger, before hand
is closed.

assistant takes suction tip
with right hand.

unit tray for solo-work
dentist takes instrument 
“from below”.

4-handed instrument transfer
assistant takes handinstrument with left 
hand on instrument tray placed as shown

new instrument parallel
with used instrument.

little finger ready.

little finger takes used
instrument

-and assistant places new
instrument in dentists handi
in exactly same position.

used instrument is placed
on tray.

SOLO LEFT TO RIGHT HAND TRANSFER GRIP

solo-instrument transfer from tray
dentist takes new instrument with
left hand

-and is ready to transfer with new 
instrument parallel to used one

used instrument is taken with
left hand between middle-
finger and index-finger. used instrument is taken and
left hand has begun to 
rotate a bitwhich places new instrument
in right hand, with kept
support on head of patient

 this can also be done with a
mirror in “rest position” as
shown.