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Related Concept Videos

Local Anesthetics: Clinical Application as Intravenous Regional Anesthesia01:16

Local Anesthetics: Clinical Application as Intravenous Regional Anesthesia

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Intravenous regional anesthesia or the Bier block technique is used to anesthetize a specific limb or extremity. It uses exsanguinated or blood-drained vessels to transport local anesthetics or LAs to the peripheral nerve trunks. Lidocaine without vasoconstrictors like epinephrine is most commonly used for this technique. Other drugs used are prilocaine, ropivacaine, and chloroprocaine. Bupivacaine is not recommended for this technique due to its high cardiac toxicity.
One of the advantages of...
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Local Anesthetics: Clinical Application as Spinal Anesthesia01:11

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Spinal anesthetics are given during lower abdomen and limb surgeries to block sensory and motor neurons. They are administered in the mid to low lumbar regions, primarily acting on the cauda equina's nerve roots. The blockade level depends on the local anesthetic (LA) concentration. Usually, low LA concentrations are sufficient to block sensory fibers, while only high LA concentrations block motor fibers. Other factors like injection volume and speed, the patient's posture, and the drug...
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Dynamic Navigation for Dental Implant Placement
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Intraosseous Anesthesia Using Dynamic Navigation Technology.

Sameer D Jain1, Caroline K Carrico2, Ido Bermanis3

  • 1Departments of Endodontics, School of Dentistry, Virginia Commonwealth University, Richmond, Virgini.

Journal of Endodontics
|September 13, 2020
PubMed
Summary
This summary is machine-generated.

Dynamic navigation technology significantly improved the safety and accuracy of intraosseous anesthesia delivery, eliminating root perforations. This advanced method proved superior to the freehand technique in precise dental procedures.

Keywords:
Dynamic navigationNavidentguided anesthesiaguided endodonticsintraosseous anesthesia

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Area of Science:

  • Dental Anesthesiology
  • Medical Technology
  • Surgical Navigation

Background:

  • Intraosseous anesthesia delivery traditionally uses freehand techniques.
  • These methods carry risks of root perforation and inaccuracies.
  • Novel dynamic navigation technology offers a potential improvement.

Purpose of the Study:

  • To evaluate the safety and 3-dimensional (3D) accuracy of dynamic navigation for intraosseous anesthesia.
  • To compare this novel method against the traditional freehand injection technique.

Main Methods:

  • Utilized 3D-printed jaw models with simulated dental anatomy.
  • Employed freehand and dynamic navigation (Navident with X-Tip) for intraosseous drilling.
  • Compared root perforation rates and measured 2D/3D deviations using cone-beam computed tomography.

Main Results:

  • Dynamic navigation achieved 0% root perforation, significantly lower than the freehand group's 22%.
  • 2D deviations ranged from 0.70-0.96 mm; 3D deviations were 1.23 mm (tip) and 1.36° (angle).
  • Inter-radicular distance did not significantly impact dynamic navigation accuracy.

Conclusions:

  • Dynamic navigation ensures 100% successful and accurate intraosseous delivery, regardless of inter-radicular distance.
  • This technology is significantly safer, preventing adjacent tooth root injury compared to freehand drilling.