Conditioning of Enamel with Nd:YAG and CO2 Dental Laser Systems and with Phosphoric Acid An In-Vitro Comparison of the Tensile Bond Strength and the Morphology of the Enamel Surface

Fuhrmann, Robert; Gutknecht, Norbert; Magunski, Andreas; Lampert, Friedrich; Diedrich, Peter

doi:10.1007/pl00001943

Cited by 22 publications

(12 citation statements)

References 16 publications

(33 reference statements)

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“…posite wurden höhere Haftkräfte angegeben als für kompositmodifizierte Glasionomerzemente (RMGIC) [1,8,26,29]. Allerdings wurden auch signifikante Unterschiede zwischen den Adhäsiven desselben Typus gefunden [12,15,35]. Zudem könnte der Nachteil von RMGIC im Hinblick auf die absoluten Haftwerte durch eine höhere Feuchtigkeitstoleranz [7,17,19,28] For shear testing, the specimens were inserted into a shear force jig ( Figure 1) and measured with a universal testing machine (Instron 4444; Instron Corp., Wilmington, DE, USA) with a crosshead speed of 0.1 mm/s.…”

Section: Methodsunclassified

Influence of Enamel Conditioning on the Shear Bond Strength of Different Adhesives

et al. 2010

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Section: Methodsunclassified

Influence of Enamel Conditioning on the Shear Bond Strength of Different Adhesives

et al. 2010

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“…Reports of the effectiveness of laser irradiation on enhancing the bond strength of dental enamel to restorative materials vary widely in the literature [26][27][28][29][30][31][32][33][34][35][36]. Studies have shown that IR laser radiation can leave deposits of loosely attached enamel that compromise the bond between the enamel and the resin [32].…”

Section: Introductionmentioning

confidence: 99%

Irradiation of dental enamel with Q‐switched λ = 355‐nm laser pulses: Surface morphology, fluoride adsorption, and adhesion to composite resin

et al. 2003

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“…The use of lasers for etching enamel surface has been debated in many researches. Although some researchers (loos et al 1994), (Guiraldo et al 2016) 21,22 agree that laser etching is not suitable for etching enamel, others (Fuhrmann et al 2001), (Goel et al 2017) 23,24 reported that laser irradiation can be used to etch tooth enamel.…”

Section: Discusionmentioning

confidence: 99%

Effect of Laser Etching on Bonding and Debonding of Orthodontic Bracketse

Eid

Halim

2018

Egyptian Dental Journal

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Objectives: Comparing effect of surface enamel conditioning when irradiated with Er,Cr:YSGG laser versus typical phosphoric acid etching on shear bond strength of orthodontic brackets and their effect on esthetics of enamel surfaces after debonding. Methods: Forty freshly extracted premolars were used in this study. Sample was divided into two groups (n=20), group I; enamel etched with 37% phosphoric acid (3M Unitek, Monrovia, USA) for 15 s. Group II; enamel was irradiated with Er,Cr:YSGG laser ablated with an energy output of 4.5 watt/20hz (2.78 μm wavelength) used for 15 sec. Orthodontic brackets (NU-EDGE.022" ROTH RX.TP orthodontics) were bonded to enamel surface of all specimens (Feltik Supreme XT Flowable, 3M/ESPE). The teeth were placed in Lloyd universal testing machine at crosshead speed of 0.5 mm/minute, and the shear force to remove the brackets was recorded. The bracket bases and enamel surfaces were examined after debonding under a light stereomicroscope at 20 x magnification and the adhesive remnant index (ARI) scores were assigned to each specimen. Statistical analysis was conducted using SPSS. The SBS data were compared with an unpaired t test. Statistical significance for both tests was defined as p < 0.05. The distributions of ARI scores were compared with an unpaired t test. Results: A higher shear bond strength mean value was recorded in acid etching group (14.71±0.82) Mpa, where unpaired t test revealed that the difference between groups was statistically significant (P<0.0001). Higher (ARI) mean value was recorded in laser etching group (2.3±0.47), where unpaired t test revealed that the difference between groups was statistically significant (P<0.0001). Conclusions: Er:YAG laser is capable of obtaining optimal bond strength for orthodontic brackets when used as a surface conditioning agent though have lower bond strength, In addition, it leaves the enamel with a rougher surface upon debonding versus typical acid etching techniques.

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Conditioning of Enamel with Nd:YAG and CO2 Dental Laser Systems and with Phosphoric Acid An In-Vitro Comparison of the Tensile Bond Strength and the Morphology of the Enamel Surface

Abstract: The CO2 and Nd:YAG dental lasers tested produce enamel conditioning and tensile bond strength sufficient to meet the requirements of bracket bonding.

Cited by 22 publications

References 16 publications

Influence of Enamel Conditioning on the Shear Bond Strength of Different Adhesives

Influence of Enamel Conditioning on the Shear Bond Strength of Different Adhesives

Irradiation of dental enamel with Q‐switched λ = 355‐nm laser pulses: Surface morphology, fluoride adsorption, and adhesion to composite resin

Effect of Laser Etching on Bonding and Debonding of Orthodontic Bracketse

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