In-situ observation of fractal structures and electrical conductivity in human tooth enamel

Crystallographic structure of human tooth enamel by electron microscopy and x‐ray diffraction: hexagonal or monoclinic?

“…They comment that this transition where the disappearance of birefringence was observed could be interpreted as a phase transition of order‐disorder type between these phases. It is highly likely that this observation also be related to the report made by Reyes‐Gasga et al (1997) and Reyes‐Gasga, et al (1999) on the electrical conductivity recorded in human tooth enamel and the appearance of fractal structures observed around this temperature. However, this supposition requires further experimental analysis.…”

Wettability modification of human tooth surface by water and UV and electron-beam radiation

“…Next, the strong influence of the injected electrons on the surface electric potential of the HAP substrate is due to charge trapping in the vicinity of the HAP surface. The charge trapped on localized centers leads to electric field generation near the surface according to the Laplace equation ∇ϕ = − E [25]. This induced electric field may reach the magnitude of E = 10 6 V/cm at the flat surface [9,12].…”

Initial stages of hydration and Zn substitution/occupation on hydroxyapatite (0001) surfaces

“…Hydroxyapatite (HAP), with chemical formula Ca 10 (PO 4 ) 6 (OH) 2 , is widely used in the repair, reconstruction, and replacement of diseased or damaged parts of bones or teeth [1][2][3][4]. HAP also claims attention as an environmental adsorbent of metals and toxic waste removal due to its porous nature and highly active ion exchange character [5,6].…”