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GENERAL – What is intraosseous (and osteocentral) anesthesia?

Intraosseous anesthesia is an anesthetic technique with a simple protocol that involves passing the needle through the cortex to inject the anesthetic directly into the bony box, as close as possible to the apex, thus anesthetizing the tooth pulp much more quickly and effectively, without exposing the patient to postoperative consequences. Intraosseous anesthesia techniques include osteocentral, transcortical and intraligamentary anesthesia.

Anesthésie ostéocentrale

In particular, osteocentral anesthesia is the most effective anesthesia technique.

This technique has been around since 1906, and was further developed in 1997 by Dr Alain VILLETTE, then perfected by Dr Eric PASQUIER in 2007. It can only be used on adult patients with a device capable of rotating the needle: QuickSleeper.

The protocol is simple and consists of three steps:

  1. Anaesthetize the mucosa beforehand*.
  2. Perforate the septum in the direction of the apexes (insert the needle 2/3 of its length)
  3. Inject close to the apexes into cancellous bone rich in blood supply

*The periosteum is a sensitive area, which is very painful. Mucosal anesthesia is important, as it makes the osteocentral technique completely painless for the patient. This is the only area of the protocol that is innervated.

Benefits of osteocentral anesthesia :

  • Injection of up to 1 cartridge with concentrated vasoconstrictors without risk of ischemia/necrosis
  • Immediate effect of anesthesia (no need to wait for propagation after injection)
  • Painless for the patient
  • No failure (anesthesia ALWAYS effective)
  • No soft-tissue numbness
  • Effective on mandibular molars, even in pulpitis
  • Anesthesia of 2 to 8 teeth with a single injection site
  • Multi-sector capability (adapt care to long appointments)
  • Applicable to maxilla and mandible
  • Reduces risk of ischemia and necrosis

 

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