Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Scanning electron microscopic characterization of sensitive vs. insensitive human radicular dentin.

M Yoshiyama1, J Masada, A Uchida

  • 1Department of Operative Dentistry, Tokushima University School of Dentistry, Japan.

Journal of Dental Research
|November 1, 1989
PubMed
Summary

Hypersensitive teeth show open dentinal tubules, while desensitized areas have tubules blocked by crystals. This research clarifies the structural differences in dentinal tubules related to tooth sensitivity.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Discovery of cockroach specimens of the genus Squamoptera (Ectobiidae: Pseudophyllodromiinae) from Okinawa, Japan, showing wing polymorphism.

Tropical biomedicine·2021
Same author

Ecological succession of the microbial communities of an air-conditioning cooling coil in the tropics.

Indoor air·2016
Same author

Species clarification of Ogasawara cockroaches which inhabit Japan.

Tropical biomedicine·2015
Same author

Are tyrosine residues involved in the photoconversion of the water-soluble chlorophyll-binding protein of Chenopodium album?

Plant biology (Stuttgart, Germany)·2014
Same author

Lymphokine-activated killer cell activity Characteristics of effector cells and their progenitors in blood and spleen.

Immunology today·2014
Same author

Images created in a model eye during simulated cataract surgery can be the basis for images perceived by patients during cataract surgery.

Eye (London, England)·2014

Area of Science:

  • Dental Science
  • Biomaterials Science

Background:

  • Tooth hypersensitivity is a common clinical issue.
  • Understanding dentinal tubule structure is key to managing sensitivity.

Purpose of the Study:

  • To investigate structural changes in dentinal tubules between hypersensitive and desensitized areas.
  • To correlate tubule morphology with tooth sensitivity levels.

Main Methods:

  • A novel biopsy technique using a diamond bur for vital tooth dentin.
  • Scanning electron microscopy (SEM) and microradiography (MR) on paired dentin specimens.
  • In vivo scratch test to identify hypersensitive areas on exposed human dentin.

Main Results:

  • Hypersensitive areas exhibited open dentinal tubule orifices.

Related Experiment Videos

  • Membranous structures were observed on the walls of tubules in hypersensitive regions.
  • Naturally desensitized areas showed dentinal tubules obturated with rhombohedral crystals.
  • Membranous structures were absent in desensitized tubules.

    • Conclusions:

    • Open dentinal tubules are associated with tooth hypersensitivity.
    • Tubule occlusion by crystals correlates with natural desensitization.
    • Structural differences in dentinal tubules explain varying sensitivity.