Mineral density changes in bovine carious dentin after treatment with bioactive dental cements: a comparative micro-CT study.

Objectives: To evaluate the potential of conventional glass ionomer cement (GIC), Biodentine™, MTA, and Portland cement to induce mineral density changes in carious dentin compared to zinc oxide eugenol control cement (ZOE).

Materials And Methods: Fifty blocks of bovine root dentin were prepared and a biofilm model using ATCC strains of S.mutans, S.

Is the morphology and activity of the occlusal carious lesion related to the lesion progression stage?

Objective: To investigate the relationship between degree of dentin demineralization with both lesion activity and morphology of the occlusal carious cavity.

Design: Occlusal sites (n=138) were identified by visual examination (Nyvad's scores 0-6) in 67 extracted teeth which were scanned in a high energy micro-CT. After 3D reconstruction, each stack was resliced in the mesio-distal direction and tooth mineral density (MD) was measured along a path from enamel to the deepest part of dentin in the slice showing the most severe carious involvement.