Other exposed proteins and organic components in dentine and local oral tissues

The organic components of dentine and local oral tissues represent a heterogeneous collection of proteins and molecules that form the extracellular matrix (ECM). Approximately 90% of the dentine organic matrix is composed of Type I collagen, which provides a scaffold for hydroxyapatite crystal deposition, while the remaining 10% consists of non-collagenous proteins (NCPs) like dentin sialophosphoprotein (DSPP) and proteoglycans that regulate mineralization [1][2]. These components are crucial in the pathogenesis of dental caries, where bacterial acids demineralize the inorganic phase, exposing the organic matrix to degradation by host-derived enzymes like matrix metalloproteinases (MMPs) [3]. Therapeutic interventions often target these components to improve dental bonding or treat sensitivity; for example, glutaraldehyde is used to coagulate proteins within dentinal tubules to block fluid movement, and chlorhexidine is applied to inhibit MMPs and preserve the integrity of the resin-dentine interface [4][5]. Understanding the interaction between dental materials and these organic components is essential for developing durable restorative treatments and promoting tissue regeneration. [1] Goldberg, M., et al. (2011). Dentine: a dynamic tissue. [2] Linde, A. (1989). Dentin matrix proteins: composition and possible functions. [3] Tjäderhane, L., et al. (2015). The role of host-derived ethylenediaminetetraacetic acid-soluble proteins in dentine caries. [4] Qin, X., et al. (2014). Effect of glutaraldehyde on the collagen stability. [5] Pashley, D. H., et al. (2004). Collagen degradation by host-derived enzymes during aging.

Other names

Dentin organic matrixDentine extracellular matrixOral tissue organic componentsNon-collagenous dentin proteinsDentin phosphoproteins

Drugs interact with these components through protein coagulation, cross-linking, enzymatic inhibition of matrix metalloproteinases (MMPs), or chemical hybridization to stabilize the dentine-pulp complex and facilitate dental adhesion.