不同能量的NdYAG和CO2激光处理后骨内牙种植体的表面特性

Surface properties of endosseous dental implants after NdYAG and CO2 laser treatment at various energies.

作者信息

Park Cheung-Yeoul, Kim Su-Gwan, Kim Myung-Duck, Eom Tae-Gwan, Yoon Jung-Hoon, Ahn Sang-Gun

机构信息

Department of Oral and Maxillofacial Surgery, Oral Biology Research Institute, College of Dentistry, Chosun University, 421 SeoSeogDong, GwangJu City 501-825, Korea.

出版信息

J Oral Maxillofac Surg. 2005 Oct;63(10):1522-7. doi: 10.1016/j.joms.2005.06.015.

DOI:10.1016/j.joms.2005.06.015

PMID:16182922

Abstract

OBJECTIVES

Dental lasers have been used for uncovering submerged implants as well as decontaminating implant surfaces when treating peri-implantitis. The objective of this study was to compare the possible alterations of the smooth surface and resorbable blast material (RBM) surface implants after using NdYAG and CO(2) lasers at various energies.

MATERIALS AND METHODS

Ten smooth surface implants and 10 RBM surface implants were used. Two smooth surface implants and 2 RBM surface implants served as a control group that was not lased. The remaining implants were treated using NdYAG and CO(2) lasers. The surface of each implant was treated for 10 seconds on the second and third threads. The smooth surface implants (group 1) were treated using a pulsed contact NdYAG laser at power settings of 1, 2, 3.5, and 5 W, which are commonly used for soft tissue surgery; the corresponding energy and frequency were 50 mJ and 20 Hz, 100 mJ and 20 Hz, 350 mJ and 10 Hz, and 250 mJ and 20 Hz, respectively. The group 2 RBM implants were treated using a pulsed contact NdYAG laser. The group 3 smooth surface implants were treated using a pulsed wave non-contact CO(2) laser at 1, 2, 3.5, and 5 W, and the group 4 RBM implants were treated using a pulsed wave non-contact CO(2) laser. Data were analyzed using scanning electron microscopy.

RESULTS

The control surface was very regular and smooth. After NdYAG laser treatment, the implant surface showed alterations of all the surfaces. The amount of damage was proportional to the power. A remarkable finding was the similarity of the lased areas on the smooth and RBM surfaces. CO(2) laser at power settings of 1.0 or 2.0 W did not alter the implant surface, regardless of implant type. At settings of 3.5 and 5 W, there was destruction of the micromachined groove and gas formation.

CONCLUSION

This study supports that CO(2) laser treatment appears more useful than NdYAG laser treatment and CO(2) laser does not damage titanium implant surface, which should be of value when uncovering submerged implants and treating peri-implantitis.

摘要

目的

牙科激光已被用于暴露潜入式种植体以及在治疗种植体周围炎时对种植体表面进行消毒。本研究的目的是比较在不同能量下使用NdYAG和CO₂激光后，光滑表面和可吸收喷砂材料（RBM）表面种植体可能发生的变化。

材料与方法

使用10个光滑表面种植体和10个RBM表面种植体。2个光滑表面种植体和2个RBM表面种植体作为未接受激光照射的对照组。其余种植体使用NdYAG和CO₂激光进行治疗。每个种植体的表面在第二和第三螺纹处接受10秒的治疗。光滑表面种植体（第１组）使用脉冲接触式NdYAG激光，功率设置为1、2、3.5和5W，这些功率常用于软组织手术；相应的能量和频率分别为50mJ和20Hz、100mJ和20Hz、350mJ和10Hz以及250mJ和20Hz。第2组RBM种植体使用脉冲接触式NdYAG激光进行治疗。第3组光滑表面种植体使用脉冲波非接触式CO₂激光，功率为1、2、3.5和5W，第4组RBM种植体使用脉冲波非接触式CO₂激光进行治疗。使用扫描电子显微镜分析数据。