Ultrasonic Instrumentation Tips for Premolars
Mechanized instrumentation for premolar teeth involves appropriate ultrasonic insert and/or tip (UIT) selection and knowledge about crown and root anatomy. Also, “technique intelligence,” or the combination of concentration, mental imagery, correct technique, and experience, should be considered for proper adaptation and activation of the UIT. Because of the anatomy of premolar teeth, multiple tip designs must be selected to adapt to the curvature, concavities, and grooves (see “Instrumenting Premolars” in the November 2017 issue of Dimensions of Dental Hygiene for figures depicting the typical anatomy of premolars).1A set of straight, right-curved, and left-curved designs is necessary. However, additional inserts with varying shank diameters and tip lengths will also be needed. The size and tenaciousness of the calculus deposit are key to selecting the appropriate UIT diameter, as tip length is relative to probing depth readings. For example, a long, ultrathin UIT is essential for plaque biofilm and fine deposit removal within deep pockets with tight gingival tissue.
* References can be found in the original article via the link below.
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