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Chapter 19
instrument transfer and maintaining operating field
Term | Definition |
---|---|
Pen Grasp | when an instrument is held the same way as a pen or a pencil between the pad of the index finger and the pad of thumb, the side of the middle finger is opposite of the thumb. used to hold instruments that have angled shanks |
Palm Grasp | hold the instrument I the palm of the hand and fingers grasp the handle of the instrument. used for surgical and cotton pliers, rubber dam and other forceps. the palm & instrument is pointed up when working on the maxillary arch and down for mandibular |
Palm- Thumb Grasp | the handle is in the palm with 4 fingers wrapped around the handle with the thumb toward the paitent. used with instruments having straight shanks & blades like the straight and wedelstaedt chisel |
Reverse Palm- Thumb grasp | used to hold the evacuator tip in the patients mouth also called the thumb to nose, where the thumb is pointed toward the assistant |
Modified Pen Grasp | the index and middle finger rest on top of the instrument. preferred by some and provides more control and strength while lessening the operators fatigue. used with angle shanks |
Tactile Sensation | allows the operator to know that the exchange has taken place without taking their eyes of the oral cavity. DA should pass with enough pressure so the dentist can feel it in their hand. |
Requirements For M.O.F | determined by the procedure, teeth being treated, oral anatomy, and preferences of the operator |
Why Maintain Operating Field | keeping the treatment area clean, visible, accessible and comfortable for the patient |
Tools Used For M.O.F | dental lighting, HVE, low volume saliva ejector, air/water syringe, retractors and mouth props |
Passing/Receiving Left | DA passes and receives with the left hand |
Passing/Receiving Right | DA passes and receives with the right hand |
Angled Shank Transfer | the primary working end should be placed away from the assistant on the tray |
Straight Shank Transfer | the primary working end should be placed toward the assistant on the tray |
Pen Grasp Pick Up | pick up the end closest to the assistant. this is the opposite from the end that the dentist uses |
Transferring | hold the instrument parallel to the one held by the operator. hold them as close as possible with out tangling them |
retrieving instruments | one and two handed transfers. one handed sequence is the approach, the retrieval, and the delivery. the two is requires both hands and is used mostly for surgical forceps and pliers |
Air/Water Syringe Retrieval | cover the nozzle and the tip with the palm of the hand. can be accomplished with one and two handed transfers |
Instruments With Blood/Debris | Assistant should be ready with gauze to place over the working end as it is received. this is to keep the patient from seeing it. |
Retraction Of Tissues | the tongue, cheeks, lips and tissues are retracted for and increased field of vision. types are the mouth mirror, rubber dam, evacuator tip, cotton rolls, gauze, and specially designed retractors |
Stenson's Duct | saliva from the parotid gland enters the mouth through it. located on the buccal mucosa around the maxillary second bicuspid area. to help control the moisture dry angles are used |
Indirect Vision | when the operator uses a mouth mirror to view the areas of the oral cavity not seen directly |
Cotton Pliers | when transferring and receiving the instrument, the DA must hold it at the working end so the material doesn't drop |
Successful Transfer | when the DA can anticipate what instrument the dentist wants next, the dentist's view remains in the oral cavity, stress/fatigue are reduced, safety/comfort for the patient and productivity is increased using less time and motion |
Dry Angles | triangular absorbent pads that absorbs the flow of saliva and protect the cheek. placed directly on the buccal mucosa. must be moist before removal |