Forums Laser Resources Laser Physics Related Literature Pain Blocking Mechanism

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  • #3226 Reply

    Anonymous
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    Anyone have access to the whole study?

    Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2004 Feb;97(2):246-50.  Related Articles, Links  

     
    Short-term histomorphological effects of Er:YAG laser irradiation to rat coronal dentin-pulp complex.

    Inoue H, Izumi T, Ishikawa H, Watanabe K.

    Department of Operative Dentistry and Endodontology, Fukuoka Dental College, Fukuoka, Japan. dragonp@college.fdcnet.ac.jp

    OBJECTIVE: The objective of the study was to examine the morphological changes of neural elements in dentin-pulp complex ultrastructurally after Er:YAG laser irradiation and elucidate the mechanism of pain reduction in cavity ablation. STUDY DESIGN: The Er:YAG laser was applied at occlusal surfaces of upper and lower first molar cusps of 6 rats, and shallow cavities were ablated. The dentin and pulps were examined with light and electron microscopes at 6 hours after the irradiation. Teeth, without laser irradiation, from three rats were used as controls. RESULTS: Disruption of nerve terminals in the dentinal tubules, degeneration of nerve terminals between odontoblasts, and disruption of the myelin sheath in the pulp core were demonstrated with electron microscope. CONCLUSION: Some Er:YAG laser beams could penetrate to deeper areas than ablated area, and damage of nerve fibers and terminals might be a mechanism of pain reduction in cavity ablation with Er:YAG laser.

    #9422 Reply

    Glenn van As
    Spectator

    Cool cool cool……..so maybe there is something to it huh.

    Glenn

    #9423 Reply

    cerecdoc
    Spectator

    This is great! I’ve been wanting some hard data on this “religion” since I first heard about it. Believing it has been the hardest part for me of being a laser dentist.

    It’s nice to have some demonstrated physical effects noted.

    Does this article address any long term effects to the nerves? Not that such might be harmless anyway!

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