The aim of this work was to study the bond strength of resin composite bonded to dentin surfaces treated with KrF excimer laser radiation, untreated surfaces, and acid-etched surfaces using a single-plane shear method. Dentin specimens cut from freshly extracted permanent molar teeth were subjected to laser treatment with a KrF excimer laser (248 nm) using a fluence of . The bond strength was greater for acid-etched specimens than for laser treated or untreated specimens. The low strength of the bond to laser treated surfaces is probably due to a shift from a mixed to a cohesive rupture mechanism. It was concluded from this study that surface treatment of dentin surfaces with KrF excimer laser under the conditions described does not significantly improve the shear bond strength to composites.
REFERENCES
1.
D. C.
Sarrett
, “Clinical challenges and the relevance of materials testing for posterior composite restorations
,” Dent. Mater.
21
, 9
–20
(2005
).2.
G. W.
Marshall
, S. J.
Marshall
, J. H.
Kinney
, and M.
Balooch
, “The dentin substrate: structure and properties related to bonding
,” J. Dent.
25
, 441
–458
(1997
).3.
N.
Nakabayashi
, K.
Kojima
, and E.
Masuhara
, “The promotion of adhesion by the infiltration of monomers into tooth substrates
,” J. Biomed. Mater. Res.
16
, 265
–273
(1982
).4.
L. F.
Cooper
, M. L.
Myers
, D. G. A.
Nelson
, and A. S.
Mowery
, “shear-strength of composite bonded to laser pretreated dentin
,” J. Prosthet. Dent.
60
, 45
–49
(1988
).5.
S. R.
Visuri
, J. L.
Gilbert
, D. D.
Wright
, H. A.
Wigdor
, and J. T.
Walsh
, “Shear strength of composite bonded to Er:YAG laser-prepared dentin
,” J. Dent. Res.
75
, 599
–605
(1996
).6.
M.
Hossain
, Y.
Nakamura
, Y.
Yamada
, N.
Suzuki
, Y.
Murakami
, and K.
Matsumoto
, “Analysis of surface roughness of enamel and dentin after Er,Cr:YSGG laser irradiation
,” J. Clin. Laser Med. Surg.
19
, 297
–303
(2001
).7.
A.
Martinez-Insua
, L. D.
Dominguez
, F. G.
Rivera
, and U. A.
Santana-Penin
, “Differences in bonding to acid-etched or Er:YAG-laser-treated enamel and dentin surfaces
,” J. Prosthet. Dent.
84
, 280
–288
(2000
).8.
L.
Ceballos
, M.
Toledano
, R.
Osorio
, F. R.
Tay
, and G. W.
Marshall
, “Bonding to Er:YAG laser-treated dentin
,” J. Dent. Res.
81
, 119
–122
(2002
).9.
A.
Matos
, D.
Oliveira
, R.
Navarro
, C.
de Eduardo
, and E.
Matso
, “Nd:YAG laser influence on tensile bond strength of self-etching adhesive systems
,” J. Clin. Laser Med. Surg.
18
, 253
–257
(2000
).10.
T.
Eguro
, T.
Maeda
, M.
Otsuki
, Y.
Nishimura
, I.
Katsuumi
, and H.
Tanaka
, “Adhesion of Er:YAG laser-irradiated dentin and composite resins: application of various treatments on irradiated surface
,” Lasers Surg. Med.
30
, 267
–272
(2002
).11.
C.
Kobayashi
, A.
Fujishima
, T.
Miyazaki
, Y.
Kimura
, K.
Matsumoto
, T.
Osada
, H.
Fukunaga
, and T.
Kawawa
, “Effect of Nd:YAG laser irradiation on shear bond strength of glass-lonomer luting cement to dentin surface
,” Int. J. Prosthodont
16
, 493
–498
(2003
).12.
K.
Sheth
, M.
Staninec
, A.
Sarma
, and D.
Fried
, “Selective targeting of protein, water, and mineral in dentin using UV and IR pulse lasers: the effect on the bond strength to composite restorative materials
,” Lasers Surg. Med.
35
, 245
–253
(2004
).13.
C.
Trajtenberg
, P.
Pereira
, and J.
Powers
, “Resin bond strength and micromorphology of human teeth prepared with an Erbium:YAG laser
,” Am. J. Dent.
17
, 331
–336
(2004
).14.
K.
Aizawa
, A.
Kameyama
, J.
Kato
, T.
Amagai
, Y.
Takase
, E.
Kawada
, Y.
Oda
, and Y.
Hirai
, “Resin bonding to dentin irradiated by high repetition rate Er:YAG laser
,” Photomed. Laser Surg.
24
, 397
–401
(2006
).15.
D.
Chimello-Sousa
, A.
de Souza
, M.
Chinelatti
, J.
Pecora
, R.
Palma-Dibb
, and S.
Corona
, “Influence of Er:YAG laser irradiation distance on the bond strength of a restorative system to enamel
,” J. Dent.
34
, 245
–251
(2006
).16.
M.
Esteves-Oliveira
, D.
Zezell
, C.
Apel
, M.
Turbino
, A.
Aranha
, C.
Eduardo
, and N.
Gutknecht
, “Bond Strength of Self-Etching Primer to Bur Cut, Er,Cr:YSGG, and Er:YAG Lased Dental Surfaces
,” Photomed. Laser Surg.
25
, 373
–380
(2007
).17.
B.
Lee
, P.
Lin
, M.
Chen
, T.
Hsieh
, C.
Lin
, J.
Lai
, and W.
Lan
, “Tensile bond strength of Er,Cr:YSGG laser-irradiated human dentin and analysis of dentin-resin interface
,” Dent. Mater.
23
, 570
–578
(2007
).18.
R.
Carvalho
, P.
Freitas
, M.
Otsuki
, C.
Eduardo
, and J.
Tagami
, “Micro-shear bond strength of Er:YAG-laser-treated dentin
,” Lasers Med. Sci.
23
, 117
–124
(2008
).19.
D.
Malta
, M.
Costa
, J.
Pelino
, M.
de Andrade
, and R.
Lizarelli
, “Bond strength of an adhesive system irradiated with Nd: YAG laser in dentin treated with Er: YAG laser
,” Laser Phys. Lett.
5
, 144
–150
(2008
).20.
F.
Sanchez
, A.
Tost
, and J.
Morenza
, “ArF excimer laser irradiation of human dentin
,” Lasers Surg. Med.
21
, 474
–479
(1997
).21.
S.
Eugenio
, M.
Sivakumar
, R.
Vilar
, and A. M.
Rego
, “Surface characterization of KrF laser processed dentin
,” Biomaterials
26
, 6780
–6787
(2005
).22.
M.
Sivakumar
, V.
Oliveira
, S.
Oliveira
, J.
Leitao
, and R.
Vilar
, “Influence of tubule orientation on cone-shaped texture development in laser-ablated dentin
,” Lasers Med. Sci.
21
, 160
–164
(2006
).23.
V.
Oliveira
, M.
Sivakumar
, and R.
Vilar
, “A mathematical description of surface texture development in laser-ablated dentin
,” J. Appl. Phys.
100
, 104701
(2006
).24.
L. G.
Watanabe
, G. W.
Marshall
, and S. J.
Marshall
, “Variables influence on shear bond strength testing to dentin,” Proceedings of Advanced Adhesive Dentistry, 3rd International Kuraray Symposium (Kuraray, Granada, Spain, 1999
), pp 75
–90
.25.
A.
Aoki
, I.
Ishikawa
, T.
Yamada
, M.
Otsuki
, H.
Watanabe
, J.
Tagami
, Y.
Ando
, and H.
Yamamoto
, “Comparison between Er:YAG laser and conventional technique for root caries treatment in vitro
,” J. Dent. Res.
77
, 1404
–1414
(1998
).26.
W.
Dunn
, J.
Davis
, and A.
Bush
, “Shear bond strength and SEM evaluation of composite bonded to Er:YAG laser-prepared dentin and enamel
,” Dent. Mater.
21
, 616
–624
(2005
).
This content is only available via PDF.
© 2009 Laser Institute of America.
2009
Laser Institute of America
You do not currently have access to this content.
