| 摘要 |
Process for connection between two materials, by fusion obtained by means of a laser beam, applicable in dentistry and allowing obturation or reconstruction of a damaged tooth by means of a calcium-based additive material such as hydroxyapatite or a phosphate of calcium, characterised in that the fusion between the mineral material of the teeth and the calcium-based additive material is produced by activation of the reaction of a phosphoric acid on the said materials, by means of a laser beam, and in that there is used, in order to obtain the activation of the reaction of the phosphoric acid on the mineral stroma of the tooth and on the additive material, a laser having a wavelength corresponding to an absorption peak of a radiation common to the mineral material of the teeth, to the additive material and to the phosphoric acid. |
