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Quasistatic Mechanical Testing for Computer-Aided Design and Manufacturing Occlusal Veneers Cemented to Milled Dentin Analog Material
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Demineralization Inhibition by Two Calcium-releasing Restorative Materials.

C T Huang1, J O Burgess2, A Robles3

  • 1Chan-Te Huang, DMD, MS, Clinical and Community Sciences, Division of Biomaterials, University of Alabama at Birmingham School of Dentistry, Birmingham, Alabama, and Department of Dentistry, Chang Gung Memorial Hospital at Keel-ung, Taiwan.

Operative Dentistry
|May 4, 2022
PubMed
Summary
This summary is machine-generated.

Two new calcium-releasing dental materials show promise in preventing root dentin demineralization. These materials offer better protection against caries than traditional resin composites.

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Area of Science:

  • Dental Materials Science
  • Cariology
  • Biomaterials

Background:

  • Root caries is a significant clinical challenge, particularly in aging populations.
  • Restorative materials play a crucial role in preventing secondary caries and preserving tooth structure.

Purpose of the Study:

  • To evaluate the efficacy of two novel calcium-releasing restorative materials in inhibiting root dentin demineralization.
  • To compare their performance against a conventional resin composite and a resin-modified glass ionomer (RMGI).

Main Methods:

  • Extracted human molars were restored with experimental composite, Cention N, a resin composite, or an RMGI.
  • An artificial caries model involving cyclic demineralization and remineralization was employed for 30 days.
  • Polarized light microscopy and image analysis quantified the inhibition of demineralization at the material-dentin interface.

Main Results:

  • Significant differences in demineralization inhibition were observed among the materials (p<0.001).
  • The RMGI (Fuji II LC) exhibited the highest inhibition, followed by Cention N and the experimental composite.
  • The resin composite (Filtek Supreme Ultra) showed a net wall lesion (demineralization).

Conclusions:

  • The experimental composite and Cention N demonstrated net inhibition of root dentin demineralization.
  • These calcium-releasing materials offer a potential advantage over resin composites in caries prevention.
  • While effective, their inhibitory capacity was lower than the reference RMGI.