José Luis Calvo-Guirado, PhD, DDS, Eur PhD, MS¹, Associate Researcher at the Universidad Autónoma de Chile, Director of Calvo-Guirado Dental Implant Institute, Spain

Introduction.

The most worldwide dental procedure is tooth extraction, and teeth are still considered clinical residue and, therefore, are discarded as infectious medical waste in many dental offices.

The human demineralized dentin matrix, from extracted crushed human teeth, was developed in 2008 for its osteoconductive and remodeling capacity inside the bone into the implant dentistry field. Bone and dentin are made up of body fluid (10%), collagen (30%), and hydroxyapatite (60%) by weight¹. Dentin is an acellular matrix rich in collagen without vessels, whereas bone is a cellular tissue with vessels. A "Smart Dentin Grinder TM" was designed to grind and classify the extracted teeth into a specific size dentin particle. A chemical cleanser, EDTA, and buffered saline were applied to process the dentin particles in a bacterium free for 8 minutes^2-6. This novel procedure is indicated mainly in clinical cases in which teeth must be extracted. The bone graft material derived from the tooth with no antigenicity enhances the remodeling capabilities of the bone⁷.

References

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2. Calvo-Guirado JL, Ballester-Montilla A, N De Aza P, Fernández-Domínguez M, Alexandre Gehrke S, Cegarra-Del Pino P, Mahesh L, Pelegrine AA, Aragoneses JM, Maté-Sánchez de Val J. Particulated, Extracted Human Teeth Characterization by SEM⁻EDX Evaluation as a Biomaterial for Socket Preservation: An in vitro Study. Materials (Basel). 2019; 25;12(3):380. doi: 10.3390/ma12030380.
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