Effect of Er:YAG Laser on CaF<sub>2</sub>Formation and Its Anti-Cariogenic Action on Human Enamel: An<i>in Vitro</i>Study

Delbem, Alberto Carlos Botazzo; Cury, Jaime Aparecido; Nakassima, C. K.; Gouveia, V. G.; Theodoro, Letícia Helena

doi:10.1089/104454703768247765

Cited by 62 publications

(60 citation statements)

References 24 publications

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“…Besides CO 2 -lasers, which had originally been used for this purpose [1][2][3][4][5][6][7][8][9][10] to reduce the acid dissolution of enamel, other lasers have been investigated in laboratory studies including Nd:YAG, [11][12][13][14] Er:YAG-, [15][16][17][18] and Er,Cr:YSGG-, [19][20][21] as well as argon ion lasers [22][23][24][25][26][27][28] with and without additional topical fluoride application. There are also reports from small scale in vivo studies using an argon laser around orthodontic brackets 29 or Nd:YAG-laser treatment coupled with initiation dye and acidulated fluoride application in children with the effects assessed by following the development of white spot lesions or fissure caries.…”

Section: Introductionmentioning

confidence: 99%

Caries inhibition in vital teeth using 9.6-μm CO2-laser irradiation

Rechmann

Fried

et al. 2011

J. Biomed. Opt.

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Abstract. The aim of this study was to test the hypothesis that in a short-term clinical pilot trial short-pulsed 9.6 μm CO 2 -laser irradiation significantly inhibits demineralization in vivo. Twenty-four subjects scheduled for extraction of bicuspids for orthodontic reasons (age 14.9 ± 2.2 years) were recruited. Orthodontic brackets were placed on bicuspids (Transbond XT, 3M). An area next to the bracket was irradiated with a CO 2 -laser (Pulse System Inc, Los Alamos, New Mexico), wavelength 9.6 μm, pulse duration 20 μs, pulse repetition rate 20 Hz, beam diameter 1100 μm, average fluence 4.1 ± 0.3J/cm 2 , 20 laser pulses per spot. An adjacent nonirradiated area served as control. Bicuspids were extracted after four and twelve weeks, respectively, for a quantitative assessment of demineralization by cross-sectional microhardness testing. For the 4-week arm the mean relative mineral loss Z (vol% × μm) for the laser treated enamel was 402 ± 85 (mean ± SE), while the control showed significantly higher mineral loss ( Z 738 ± 131; P = 0.04, t-test). The difference was even larger after twelve weeks (laser arm Z 135 ± 98; control 1067 ± 254; P = 0.002). The laser treatment produced 46% demineralization inhibition for the 4-week and a marked 87% inhibition for the 12-week arm. This study shows, for the first time in vivo, that the short-pulsed 9.6 μm CO 2 -laser irradiation successfully inhibits demineralization of tooth enamel in humans. C 2011 Society of Photo-Optical Instrumentation Engineers (SPIE).

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Section: Introductionmentioning

confidence: 99%

Caries inhibition in vital teeth using 9.6-μm CO2-laser irradiation

Rechmann

Fried

et al. 2011

J. Biomed. Opt.

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“…In laser therapy, several factors related to exposure need to be considered: the wavelength and energy density of the laser, the irradiation time, the focal distance, and water cooling www.intechopen.com Morioka, et al, 1991;Fried, et al, 1996;Featherstone, et al, 1998;Hossain, et al, 2000;Young, et al, 2000;Hsu, et al, 2000;Tisai, et al, 2002;Kato, et al, 2003;Matson, et al, 2002;Apel, et al, 2002Apel, et al, , 2004Apel, et al, , 2005Rodrigues, et al, 2004;Westerman, et al, 2002;Nammour, et al, 2005Cecchini, et al, 2005Liu, et al, 2006;Fried, et al 2006;Castelan, et al, 2007). Furthermore, to achieve additional prevention, special attention has focused on laser irradiation, topical fluorides and remineralizing solution associations, showing very promising results (Hossain, et al, 2002;Delbem, et al, 2003;Chin-Ying, et al, 2004;Tepper et al, 2004;Rodrigues, et al, 2004;Kwon, et al, 2005;Ana, et al, 2006;Westerman, 2006;Tagliaferro et al, 2007).…”

Section: Laser and Caries Preventionmentioning

confidence: 99%

Structural Changes on Human Dental Enamel Treated with Er:YAG, CO2 Lasers and Remineralizing Solution: EDS Analysis

Contreras‐Bulnes¹,

Olea-Mejía²,

Rodríguez‐Vilchis³

et al. 2012

Oral Health Care - Prosthodontics, Periodontology, Biology, Research and Systemic Conditions

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“…Several studies (6)(7)(8)(9)(10)(11)(12) have focused on the efficiency of the laser on the removal of carious tooth structures, surface pretreatment and cavity preparation. As laser irradiation produces a disorganized, indiscriminate destruction of organic and inorganic components (9, 13) and influences the availability of calcium ions on the tooth structure (14,15), the mechanical and chemical adhesion of GIC is inherently affected (16). However, studies on the application of Er, Cr: YSGG laser, along with CPP[U+2011]ACP, are lacking.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Laser Irradiation on Shear Bond Strength of GI to Dentin After CPP-ACP Treatment

Moezizadeh¹,

Sheikh-Al-Eslamian²

2016

Avicenna J Dent Res

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Background: Dentin sensitivity is one of the most important problems in dentistry. Enamel loss due to root exposure is serious issue and common exposure is one of the reasons for dentin hypersensitivity. There are different methods for solving this problem. One of the most conservative and least expensive methods is use of casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) paste. Objectives: The aim of this study was to evaluate shear bond strength of GIC to dentin, with or without laser, CPP-ACP paste and polyacrylic acid treatments. Materials and Methods: Fifty sound human third molars were bisected in a mesiodistal direction using a diamond disk. Using 400, 600 and 800 grit silicon carbide paper, dentin surfaces were exposed. The teeth were divided into five groups. In groups A, B, D and H, CPP-ACP (GC tooth mousse Itabashi-Ku, Tokyo, Japan) was applied for one hour the first day and repeated at the same time of day for a total of five days. In groups B, C, D and E, the specimens were subjected to laser for 10 seconds using Er, Cr: YSGG laser. In groups B, C, H and G, specimens were treated with 10% polyacrylic acid for 20 seconds. A plastic tube containing GI was positioned over the tooth. Samples were loaded in shear bond using a Universal Testing Machine (Zwick/Roell, Germany), at a 0.5 mm/minute crosshead speed. Results: Despite the failing of groups A and D, group analysis showed that there were no significant differences between the groups. The predominant type of fracture in all groups was adhesive. Conclusions: Application of CPP-ACP, without preconditioning with polyacrylic acid, can decrease shear bond strength. Laser irradiation has no effect on shear bond strength of GIC to dentin in this condition.

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Effect of Er:YAG Laser on CaF₂Formation and Its Anti-Cariogenic Action on Human Enamel: Anin VitroStudy

Abstract: It was concluded that Er:YAG laser influenced the deposition of CaF(2) on the enamel and showed a superficial anti-cariogenic action, but not in depth.

Cited by 62 publications

References 24 publications

Caries inhibition in vital teeth using 9.6-μm CO2-laser irradiation

Caries inhibition in vital teeth using 9.6-μm CO2-laser irradiation

Structural Changes on Human Dental Enamel Treated with Er:YAG, CO2 Lasers and Remineralizing Solution: EDS Analysis

The Effect of Laser Irradiation on Shear Bond Strength of GI to Dentin After CPP-ACP Treatment

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Effect of Er:YAG Laser on CaF2Formation and Its Anti-Cariogenic Action on Human Enamel: Anin VitroStudy

Abstract: It was concluded that Er:YAG laser influenced the deposition of CaF(2) on the enamel and showed a superficial anti-cariogenic action, but not in depth.

Cited by 62 publications

References 24 publications

Caries inhibition in vital teeth using 9.6-μm CO2-laser irradiation

Caries inhibition in vital teeth using 9.6-μm CO2-laser irradiation

Structural Changes on Human Dental Enamel Treated with Er:YAG, CO2 Lasers and Remineralizing Solution: EDS Analysis

The Effect of Laser Irradiation on Shear Bond Strength of GI to Dentin After CPP-ACP Treatment

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Effect of Er:YAG Laser on CaF₂Formation and Its Anti-Cariogenic Action on Human Enamel: Anin VitroStudy