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Related Concept Videos

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Cranial Nerves: Types Part I

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Related Experiment Video

Updated: Aug 30, 2025

The Establishment of a Murine Mandibular Molar Extraction Socket Healing Model
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Trigeminocardiac reflex during maxillary third molar extraction: Our experience.

Anmol Agarwal1, Gaurav Mittal1, Ritesh Garg1

  • 1Department of Oral and Maxillofacial Surgery, Institute of Dental Studies and Technologies, Ghaziabad, Uttar Pradesh, India.

National Journal of Maxillofacial Surgery
|September 2, 2022
PubMed
Summary

The trigeminocardiac reflex (TCR) can occur during dental procedures, causing bradycardia and apnea. Understanding TCR is crucial for managing patient safety in maxillofacial surgery.

Area of Science:

  • Neurology
  • Cardiology
  • Oral Surgery

Background:

  • The trigeminal nerve, the largest cranial nerve, innervates the face and oral mucosa.
Keywords:
Apneabradycardiadentocardiac reflexoculocardiac reflextrigeminocardiac reflex

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  • Trigeminocardiac reflex (TCR) involves a triad of bradycardia, apnea, and altered gastric motility upon trigeminal nerve stimulation.
  • Transient loss of consciousness in dentomaxillofacial surgery may be mediated by TCR, also known as the dentocardiac reflex.