Development and evaluation of radiopaque, light cure composite

Ashima Valiathan, V. Kalliyana Krishnan, Mira Mohanty, K. S. Bhat

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)


After the development of a two-paste chemical cure composite, evaluation of its physicochemical properties, toxicological evaluation and in-vivo experiments in dogs teeth with histopathological study of dental tissues, a clinical trial was carried out and commercial production recommended. As the shelf life of the material was not enough, a light cure composite was developed, its material characteristics, toxiclological study, in-vivo experiments in dogs with histopathological evaluation and clinical trials carried out. However, the material was radiolucent, and could not be seen in an x-ray and differentiated from a cavity after filling was done. This led to the development of radiopaque light cure composite. Compressive strength, diametral strength, and microhardness were tested with 200-250 phr range of incorporated radiopaque glass particle filler of the size 0.7 to 1.0 μm. this improved the properties when compared to conventional composites. The composite was non-toxic and suitable for animal studies. In vivo studies are underway in dogs with histopathological studied of the pulp and dentin. The material awaits clinical trials prior to commercial production.

Original languageEnglish
Pages (from-to)421-426
Number of pages6
JournalBiomedical Sciences Instrumentation
Publication statusPublished - 29-05-1999
Externally publishedYes
EventProceedings of the 1999 36th Annual Rocky Mountain Bioengineering Symposium (RMBS) and 36th International ISA Biomedical Sciences Instrumentation Symposium - Copper Mountain, CO, USA
Duration: 16-04-199818-04-1998

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Medical Laboratory Technology


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