Dental Education Hub

Dr Eugene R. Casagrande – DEH Tile

21st Century Computer-Controlled Local Anesthesia, The Wand STA

Presented by Dr Eugene R. Casagrande, DDS, FACD, FICD

CPD: 1 CPD Credit



Learn how to deliver more comfortable dental injections.

Using Dynamic Pressure Sensing technology, learn how to comfortably and successfully deliver profound anesthesia to a single tooth, offering an alternative to Mandibular Blocks and Infiltrations.

Learn how to easily anesthetize multiple teeth and related tissues with a single-site injection that does not cause collateral numbness to the patient’s lip and face.

This course will review the technology and injection dynamics associated with computer-controlled anesthetic delivery systems, along with a description of techniques for new, state-of-the-art injections such as the AMSA, P-ASA, STA-Intraligamentary, and Crestal.


Key Learning Objectives

  1. The technology of Computer Controlled Local Anesthesia Delivery (CLAD)
  2. The technique for delivery of the STA-Intraligamentary Injection, which can eliminate the need for supra-periosteal infiltrations and mandibular blocks and their associated post-treatment collateral anesthesia in dental patients
  3. The techniques and injection dynamics associated with the administration of comfortable palatal injections (AMSA & P-ASA) which can anesthetize multiple maxillary teeth and related gingival tissues without collateral anesthesia to the patient’s lip or face.
  4. How to easily anesthetize a single tooth with efficacy, safety, and comfort, but without producing collateral numbness and possible injury to a child’s lips or tongue
  5. How to minimize a child’s disruptive behavior and your stress during the administration of local anesthesia for pediatric patients.
  6. A new injection technique (the Crestal Injection) to produce profound anesthesia and increased hemostasis in the placement and recovery of dental implants.
  7. Why a computer-controlled local anesthesia delivery instrument can produce more successful, comfortable, and less stressful dental injections and can produce many benefits to you, your patients, and your practice.


Subjects Covered:

  • Local Anesthesia Developments and Devices
  • Core technology of Computer-Controlled Anesthesia
    • Flow Rate Control
    • Needle Control
  • Wand Handpiece
  • STA, Single Tooth Anesthesia System
    • Dynamic Pressure Sensing Technology
  • Other Computer-Controlled Local Anesthesia Delivery Systems
  • Injection Dynamics
    • Pre-Puncture Technique
    • Anesthetic Pathway
  • Inferior Alveolar Injection
    • Needle Deflection
    • Bi-Rotational Insertion Technique
  • Supraperiosteal Infiltration
    • Collateral Anesthesia
  • AMSA Injection
  • P-ASA Injection
  • STA Intraligamentary Injection
  • Crestal Injection
  • Benefits and Considerations of computer-controlled local anesthetic delivery