Effect of Er:YAG laser energy on the morphology of enamel/adhesive system interface

Delfino, Carina Sinclér; Corona, Silmara Aparecida Milori; Pécora, Jesus Djalma; Palma-Dibb, Regina Guenka

doi:10.1016/j.apsusc.2005.11.056

Cited by 25 publications

(20 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Similar results were reached in an earlier investigation that tested the bond durability of laser-irradiated enamel on permanent teeth (18). The explanation for this result may be the Er:YAG laser's micro-ablative process, which causes vaporization of water and dental organic components and subsequent micro-explosive destruction of inorganic substrates, resulting in a rough (16) and irregular surface (19). The morphology of laser-prepared cavities leads to an increased area of adhesive interface, which likely takes more time to be degraded.…”

Section: Discussionsupporting

confidence: 74%

Bond Durability of Er:YAG Laser-Prepared Primary Tooth Enamel

Borsatto¹,

Martinelli²,

Contente³

et al. 2013

Braz. Dent. J.

View full text Add to dashboard Cite

This study evaluated in vitro the influence of thermocycling and water storage (WS) on the shear bond strength (SBS) of composite resin in cavities prepared in primary tooth enamel with conventional bur or Er:YAG laser. The test surfaces were obtained from 48 primary molars and randomly assigned to 2 groups (n=24), according to cavity preparation: A: bur-preparation and B: Er:YAG laser irradiation. The specimens were restored with an etch-and-rinse adhesive system and composite resin. Each group was divided into 4 subgroups (n=6) according to WS duration and number of thermal cycles (TCs): I: 24 h WS/no thermocycling; II: 7 days WS/500 TCs; III: 1 month WS/2,000 TCs; IV: 6 months WS/12,000 TCs. The specimens were tested to failure in shear strength at a crosshead speed of 0.5 mm/min. Data were analyzed statistically by two-way ANOVA and Tukey's test. SBS means (S.D.) in MPa were: AI: 17.45 (2.03), AII:16.38 (1.49), AIII: 6.88 (0.66), AIV: 7.77 (1.53), BI: 12.32 (0.99), BII: 15.37 (2.24), BIII: 15.05 (2.01) and BIV-5.51 (1.01). WS duration and number of TCs influenced significantly the SBS values only for BIV (p<0.05). AI presented the highest SBS value, which was statistically similar to those of AII, BII and BIII. In conclusion, the adhesion of an etch-and-rinse adhesive to Er:YAG laser-irradiated primary tooth enamel was affected by the methods used to simulate degradation of the adhesive interface only when 6 months WS/12,000 TCs were employed.

show abstract

Section: Discussionsupporting

confidence: 74%

Bond Durability of Er:YAG Laser-Prepared Primary Tooth Enamel

Borsatto¹,

Martinelli²,

Contente³

et al. 2013

Braz. Dent. J.

View full text Add to dashboard Cite

show abstract

“…Recently, the development of a cold debracketing instrument based on laser-aided technique has been becoming popular [5][6][7][8]. The purpose of this study, therefore, was to evaluate the shear bond strength (SBS), remnant adhesive, and enamel surface microstructure alterations when brackets debonding is subjected to Nd:YAG (neodymium:yttrium-aluminum-garnet) laser irradiation.…”

Section: Introductionmentioning

confidence: 99%

Nd:YAG Laser-aided ceramic brackets debonding: Effects on shear bond strength and enamel surface

Han

Liu

Bai

et al. 2008

Applied Surface Science

View full text Add to dashboard Cite

“…74 The tissue relaxation time for enamel is 100 µsec, and supershort pulse (SSP) durations (50 µsec) are already sufficient for precise ablation. 80,81 In this case, ablation efficacy is improved; reduced residual thermal damage is induced because of the minimization of heat diffusion; enamel acid resistance for caries is increased 82,83 ; and less vibration is provoked. Pulse durations of 700 µsec (long pulses) and 1000 µsec (very long pulses) are indicated for soft tissues since the residual thermal energy provides coagulation.…”

Section: The 93-µ Co 2 Lasermentioning

confidence: 99%