Morphological Study of the Effects of CO₂Laser Emitted at 9.3 μm on Human Dentin

Abstract

These results suggest that laser irradiation at these parameters affected the sample surface only (less than 20 microm) and would be less harmful to thermal damage of dental pulp for dentin ablation.

Morphological alterations of radicular dentine pretreated with different irrigating solutions and irradiated with 980‐nm diode laser

“…Laser technology has been investigated in Endodontic therapy and several laser systems, such as Nd:YAG, Er:YAG, and CO 2 , have demonstrated the ability of cleaning and reducing microorganism from root canals (De Moura-Netto et al, 2007;Godoy et al, 2007;Kimura et al, 2000;Takeda et al, 1998). Because of its practical application and potential applicability, the 980-nm diode laser has been evaluated in Endodontic field (Coluzzi and Goldstein, 2004;Kimura et al, 2000;Stabholz et al, 2004).…”

“…Because of its practical application and potential applicability, the 980-nm diode laser has been evaluated in Endodontic field (Coluzzi and Goldstein, 2004;Kimura et al, 2000;Stabholz et al, 2004).…”

“…To solve this problem, some laser systems currently available, such as Nd:YAG, Er:YAG, and CO 2 , have been investigated in the endodontic field, demonstrating the potential of cleaning and disinfecting root canal system (Anic et al, 1998;Armengol et al, 1999;De Moura-Netto et al, 2007;Godoy et al, 2007;Kimura et al, 2000;Moritz et al, 2001).…”

“…This new system gained importance due to its compactness and low cost (Coluzzi and Goldstein, 2004;Da Costa Ribeiro et al, 2007;Kimura et al, 2000;Stabholz et al, 2004). This laser also has a high penetration power, high absorption pick in melanin and hemoglobin and low interaction with water and hydroxyapatite.…”

Carbon dioxide laser in dental caries prevention

“…The authors suggested that not only re-crystallization, but also an increase of inorganic content occurred in the laser-irradiated dentin surface, and this might be related to the increased resistance to demineralization. 18 González et al 42 and Kimura et al 61 found conflicting results when they studied the CO 2 laser effect on human dentin. The first study showed 42 by SEM that the CO 2 laser effect with a wavelength of 10.6 mm (2 W, 10 J, 0.2 s, 25 pulses) varied from charring, cratering, poring, fissuring, fracturing and cracking up to melting.…”