A COMPARISON OF THE EFFECTS OF ND-YAG AND HO-YAG LASER IRRADIATION ON DENTIN AND ENAMEL

被引：35

作者：

CERNAVIN, I ^{[1
]}

机构：

[1] UNIV MELBOURNE,SCH DENT SCI,MELBOURNE,VIC 3000,AUSTRALIA

来源：

AUSTRALIAN DENTAL JOURNAL | 1995年 / 40卷 / 02期

关键词：

DENTIN; ENAMEL; LASERS; SCANNING MICROSCOPY;

D O I：

10.1111/j.1834-7819.1995.tb03120.x

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

This preliminary study was undertaken to investigate the effects of Nd:YAG and Ho:YAG lasers on enamel and dentine of extracted teeth. The Ho:YAG laser (spot size 250 mu m, energy density 4160 J/cm(2) produced a cleaner puncture in dentine with less melting of the surrounding tissue than did the Nd:YAG laser (spot size 20 mu m), energy density 50 000 J/cm(2)), which produced considerable melting and recrystalization of dentine and was more difficult to control. It was possible to cut enamel and dentine with both lasers, but considerable melted and recrystallized enamel was produced. From the limited observations of this study it appears that the Ho:YAG laser is more suitable for cutting both enamel and dentine than the Nd:YAG laser, More work needs to be done to ascertain the effect on enamel and dentine of modification of the parameters of both lasers.

引用

页码：79 / 84

页数：6

共 20 条

[1]

Dederich D., Laser/tissue interaction: what happens to light when it strikes tissue?, J Am Dent Assoc, 124, pp. 57-61, (1993)

[2]

Yamamoto H., Ooya K., Potential of Yttrium‐aluminium‐garnet laser in caries prevention, J Oral Pathol, 3, pp. 7-15, (1974)

[3]

Myers T., Myers W., The use of a laser for debridement of incipient caries, J Prosthet Dent, 53, pp. 776-779, (1985)

[4]

Ricbourg B., Manne J., Thavenot A., Le laser Yag en odontologie conser‐vatrice infantile. Rapport préliminaire, Rev Stomatol Chir Maxillofac, 89, pp. 176-180, (1988)

[5]

Stein E., Sedlacek T., Fabian R., Nishioka N., Acute and chronic effects of bone ablation with a pulsed holmium laser, Lasers Surg Med, 10, pp. 384-388, (1990)

[6]

Kutsch K., Lasers in dentistry: comparing wavelengths, J Am Dent Assoc, 124, pp. 49-54, (1993)

[7]

White J., Goodis H., Marshall G., Marshall S., Identification of the physical modification of dentine induced by neodymium and holmium YAG lasers using scanning electron microscopy, Scanning Microscopy, 7, pp. 239-246, (1993)

[8]

Wigdor H., Abt E., Asrafi S., Walsh J., The effects of lasers on dental hard tissues, J Am Dent Assoc, 124, pp. 65-70, (1993)

[9]

Hess J., Scanning electron microscopic study of laser‐induced morphologic changes of a coated enamel surface, Lasers Surg Med, 10, pp. 458-462, (1990)

[10]

Hibst R., Keller U., Experimental studies of the ablation of the Er:YAG laser on dental hard substances: 1. Measure of the ablation rate, Lasers Surg Med, 9, pp. 338-344, (1989)

← 1 2 →