Surface morphology modifications of human teeth induced by a picosecond Nd:YAG laser operating at 532 nm

被引：9

作者：

Mirdan, B. M. ^{[1
]}

Jawad, H. A. ^{[1
]}

Batani, D. ^{[2
]}

Conte, V. ^{[3
]}

Desai, T. ^{[2
]}

Jafer, R. ^{[2
]}

机构：

[1] Univ Baghdad, Inst Laser Postgrad Studies, Baghdad, Iraq

[2] Univ Milano Bicocca, Dipartimento Fis G Occhialini, Milan, Italy

[3] Univ Milan, Dipartimento Morfol Umana, Milan, Italy

来源：

LASER AND PARTICLE BEAMS | 2009年 / 27卷 / 01期

关键词：

Biomaterials; Crater formation; Endodontics/human teeth; Laser treatment; Picosecond Nd:YAG laser; ND-YAG LASER; SCANNING ELECTRON-MICROSCOPY; INDUCED ABLATION; PULSED-LASER; PLASMA; TARGETS; SILICON; DENTIN; TITANIUM; ENAMEL;

D O I：

10.1017/S0263034609000159

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The interaction of an Nd:YAG laser, operating at 532 nm with 40 ps pulse duration, with human teeth was studied. The results show that teeth were significantly modified at an energy fluence of about 11 J/cm(2). Various surface morphologies of enamel and dentine weir recorded. Features on enamel include crater (conical form) in the central part and cauliflower morphology at the periphery, whereas on dentine the crater looks like a stretched dome between sharp edges. The behavior of the enamel-dentine junction area showed different morphology with respect to both tooth enamel and dentine alone. Finally, the junction channel showed a removal of collagen fibers and the formation of a needle-like bottom structure. Generally, this investigation showed that the picosecond Nd:YAG laser can ablate a tooth surface practically instantaneously, implying that large tooth surfaces call be processed in short time.

引用

页码：103 / 108

页数：6

共 35 条

[1] Low-energy low-divergence pulsed indium atomic beam by laser ablation [J].

Alti, K ;

Khare, A .

LASER AND PARTICLE BEAMS, 2006, 24 (01) :47-53

[2] Laser ablation of ion irradiated CR-39 [J].

Bashir, Shazia ;

Rafique, M. Shahid ;

Ul-Haq, Faizan .

LASER AND PARTICLE BEAMS, 2007, 25 (01) :181-191

[3] Ablation pressure scaling at short laser wavelength -: art. no. 067403 [J].

Batani, D ;

Stabile, H ;

Ravasio, A ;

Lucchini, G ;

Strati, F ;

Desai, T ;

Ullschmied, J ;

Krousky, E ;

Skala, J ;

Juha, L ;

Kralikova, B ;

Pfeifer, M ;

Kadlec, C ;

Mocek, T ;

Präg, A ;

Nishimura, H ;

Ochi, Y .

PHYSICAL REVIEW E, 2003, 68 (06) :674031-674034

[4] Recent experiments on the hydrodynamics of laser-produced plasmas conducted at the PALS laboratory [J].

Batani, D. ;

Dezulian, R. ;

Redaelli, R. ;

Benocci, R. ;

Stabile, H. ;

Canova, F. ;

Desai, T. ;

Lucchini, G. ;

Krousky, E. ;

Masek, K. ;

Pfeifer, M. ;

Skala, J. ;

Dudzak, R. ;

Rus, B. ;

Ullschmied, J. ;

Malka, V. ;

Faure, J. ;

Koenig, M. ;

Limpouch, J. ;

Nazarov, W. ;

Pepler, D. ;

Nagai, K. ;

Norimatsu, T. ;

Nishimura, H. .

LASER AND PARTICLE BEAMS, 2007, 25 (01) :127-141

[5] Laser plasma generation and plasma interaction with ablative target [J].

Beilis, Isak I. .

LASER AND PARTICLE BEAMS, 2007, 25 (01) :53-63

[6]

Bhaskar SN., 1991, Orban's Oral Histology And Embryology, V11th

[7] Study of laser induced ablation with focused ion beam/scanning electron microscope devices [J].

Bussoli, Marco ;

Batani, Dimitri ;

Desai, Tara ;

Canova, Federico ;

Milani, Marziale ;

Trtica, Milan ;

Gakovic, Biljana ;

Krousky, Edouard .

LASER AND PARTICLE BEAMS, 2007, 25 (01) :121-125

[8]

CARLSON SJ, 1985, ENAMEL ULTRASTRUCTUR

[9] Radiation effects on shock propagation in Al target relevant to equation of state measurements [J].

Desai, T. ;

Dezulian, R. ;

Batani, D. .

LASER AND PARTICLE BEAMS, 2007, 25 (01) :23-30

[10] Laser-induced ablation and crater formation at high laser flux [J].

Desai, T ;

Batani, D ;

Rossetti, S ;

Lucchini, G .

RADIATION EFFECTS AND DEFECTS IN SOLIDS, 2005, 160 (10-12) :595-600

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