A Scanning Acoustic Microscope Study of the Small Caries Lesion in Human Enamel

Abstract

The scanning acoustic microscope was used to image small caries lesions in sections of human enamel. The acoustic micrographs were compared with the polarized light micrographs for the same lesions. The acoustic images gave information on the extent and structure of the lesions through contrast arising from changes in the elastic properties associated with demineralization.

Ultrasonic assessment of the effects of self-assembling peptide scaffolds on preventing enamel demineralization

“…The measurement of sonic velocity has been reported to be related to the mineral content of the enamel substrate. The ultrasonic velocity increases proportionally to the concentration of mineral components in the enamel, thus acting as an index of the degree of mineralization [16,17]. The enamel is a mineralized tissue with a highly complex hierarchical structure composed of aligned enamel rods, arranged perpendicular to the tooth surface.…”

Change in elastic modulus of bovine dentine with exposure to a calcium hydroxide paste

“…[14][15][16] Ultrasonic measurement is used in many fields as a noninvasive technique, which has considerable potential for use in diagnosis and also functions as a research tool. [17][18][19] Ultrasonic devices are used to detect carious lesions [20][21][22] and to evaluate the adhesive interface of dentine bonding systems. 23 The sonic velocity has been shown to increase proportionally with the volumetric concentration of the inorganic components.…”

Effect of CPP–ACP paste on mechanical properties of bovine enamel as determined by an ultrasonic device

“…11 Since then, sonic properties of enamel and dentine have been reported by several researchers. [12][13][14] Ultrasonic devices are also used to detect carious lesions [15][16][17] and to measure the remaining dentine thickness between the tooth surface and pulp chamber. 18 Recently, these devices were used to evaluate adhesive defects of dentine bonding systems.…”