Role of periodontal mechanoreceptors in evoking reflexes in the jaw-closing muscles of the cat.

摘要: 1. In anaesthetized cats the left maxillary and mandibular canine incisor teeth were extracted. Nine weeks later animals again titanium implants placed into edentulous ridge of maxilla mandible. 2. Terminal experiments performed between 9 10 months after inserting implants. Recordings made from trigeminal ganglia peripheral nerves cats. Neurones identified which responded to forces applied but none was found implant. 3. The responses motor units in temporalis muscle studied response ramp-plateau tooth implant using peristimulus time histograms cumulative sum (cusum) analysis. A small amount inhibition observed However, much more profound when similar tooth. 4. results confirm that are a tooth, periodontal mechanoreceptors stimulated evoke reflex inhibitions jaw-closing muscles. there is evidence situated distant periodontium can also such reflexes. 5. discussed relation overall functional role reflexes mastication.