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Learn proper mirror handling techniques, handle positions, & finger rest establishment for mandibular posterior sextants. Master aspects facing toward & away for optimal treatment. Explore clock positions & alternate finger rests for enhanced access. Discover variations & modifications to improve clinician positioning and access to deep pockets.
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Topics • Using mirror to retract the cheek • Handle position for mandibular posterior teeth • Aspects facing TOWARD and AWAY • Sequence for establishing a finger rest • Alternate clock positions and finger rests
Assume the recommended clock position for the treatment area. Step 1: Assume Clock Position
Grasp mirror Place the mirror head in a “Frisbee-position” between the dental arches. Step 2: Grasp and Place Mirror
Turn mirror until it is parallel to the buccal mucosa of cheek Establish extraoral finger rest Use arm muscles to retract cheek 3. Turn, Rest, and Retract
Handle Position For Mandibular Posterior Teeth
Hand in palm DOWN position Handle rests against index finger in green shaded area Handle Position for Mandibular
Sit at 9:00 for posterior aspects facing TOWARD you. Right-Handed Clinician
Sit at 10:00 to 11:00 for posterior aspects FACING AWAY from you. Right-Handed Clinician
Sit at 3:00 for posterior aspects TOWARD you. Left-Handed Clinician
Sit at 2:00 to 1:00 for posterior aspects FACING AWAY from you. Left-Handed Clinician
Variations of Basic Skills • Clinician position and fulcruming techniques may be modified for areas difficult to access. • Alternate positions can facilitate access within deep periodontal pockets.
Alternate Technique: Right-Handed • Clock position is 3 to 4 o’clock • Intraoral finger rest
Alternate Technique: Right-Handed (cont.) • Clock position is 3 to 4 o’clock • Finger-on-finger fulcrum
Alternate Technique: Left-Handed • Clock position is 8 to 9 o’clock • Intraoral fulcrum
Alternate Technique: Left-Handed (cont.) • Clock position is 8 to 9 o’clock • Finger-on-finger fulcrum