Thermal effects and antibacterial properties of energy levels required to sterilize stained root canals with an Nd:YAG laser

Radiofrequency heating and magnetically induced displacement of dental magnetic attachments during 3.0 T MRI

“…According to Eriksson and Albrektsson, 26 exposure to temperatures of 44-47 u C (7-10 u C above body temperature) for 1 min is sufficient to cause alveolar bone necrosis. Further, Ramsköld et al 30 reported that an increase in temperature could be deleterious to tissues adjacent to the tooth, although elevations of 10 u C for 1 min are still considered safe for periodontal tissue, which is less susceptible to thermal damage than bone tissue because of its high degree of vascularization. 30,31 The temperature increase in magnetic attachments is far below the safety limit of 10 u C. Although this standard covers all medical implants, the increase in this study was below the industrial standard of a maximal temperature increase of 2.0 u C (CENELEC standard prEN45502-2-3), set to limit tissue damage and patient discomfort.…”

“…Further, Ramsköld et al 30 reported that an increase in temperature could be deleterious to tissues adjacent to the tooth, although elevations of 10 u C for 1 min are still considered safe for periodontal tissue, which is less susceptible to thermal damage than bone tissue because of its high degree of vascularization. 30,31 The temperature increase in magnetic attachments is far below the safety limit of 10 u C. Although this standard covers all medical implants, the increase in this study was below the industrial standard of a maximal temperature increase of 2.0 u C (CENELEC standard prEN45502-2-3), set to limit tissue damage and patient discomfort. Safety of ferromagnetic keepers during MRI Another safety concern is the possible adverse effect of the displacement force acting on the prosthesis owing to the magnetic field.…”

Temperature changes on the root surfaces of mandibular incisors after an 810-nm high-intensity intracanal diode laser irradiation

“…7 Therefore, several studies have been conducted to establish safe parameters of laser irradiation in dentistry, not only in the inner surface but also on the outer surfaces of the dental root. 8,9 Mostly in endodontics, the use of high-intensity diode lasers has been improving treatment outcomes as an adjuvant in bacteria reduction, removal of smear layer, and sealing improvement. [8][9][10] Also, researchers have reported in the literature that intracanal laser irradiation can increase the temperature up to 7 to 10°C without causing any damage to periodontal tissues or ligaments.…”

“…8,9 Mostly in endodontics, the use of high-intensity diode lasers has been improving treatment outcomes as an adjuvant in bacteria reduction, removal of smear layer, and sealing improvement. [8][9][10] Also, researchers have reported in the literature that intracanal laser irradiation can increase the temperature up to 7 to 10°C without causing any damage to periodontal tissues or ligaments. 8,9,11 However, the same protocol of irradiation cannot be used for all types of teeth, owing to the extreme difference of thickness between them, especially after endodontic enlargement procedures.…”

A Thermal Investigation of Dental Bleaching In Vitro

“…If this results in temperature increases of more than 10°C, there may be periodontal injury. 11,12 To minimize these increases, dentists rely on the application of a pigmented bleaching agent in order to restrict the heat generated by the light absorption to the superficial gel layer. 13,14 Therefore, investigating heat generation during light-activated bleaching is the first step when choosing the light parameters to use for clinical applications.…”