在线激光辐射控制用于去除托槽拆除后牙齿上的粘合剂。
On-line laser radiation controlled to the removal of adhesive on teeth after bracket debonding.
作者信息
Gómez Clara, Palma Juan Carlos, Costela Ángel
机构信息
Departamento de Sistemas de Baja Dimensionalidad, Superficies y Materia Condensada, Instituto de Química Física Rocasolano, CSIC, Madrid, Spain.
Departamento de Estomatología IV, Facultad de Odontología, UCM, Madrid, Spain.
出版信息
Laser Ther. 2017 Mar 31;26(1):25-30. doi: 10.5978/islsm.17-OR-3.
BACKGROUND AND AIMS
After bracket debonding a correct removal of the adhesive from tooth surfaces without causing any iatrogenic damage to the enamel is needed. However, conventional techniques do not allow a selective removal process. The present article focuses on the removal of adhesive on teeth after bracket debonding by using laser radiation at 355 nm (third harmonic wavelength of a Q-switched Nd:YAG).
MATERIAL AND METHODS
Brackets were bonded to 10 extracted human premolars from young patients and removed after a storage period of 2 months. As real-time diagnostic technique, laser-induced breakdown spectroscopy (LIBS) elemental analysis was applied for precisely controlling the removal of the adhesive and morphological analysis of the etched surfaces was carried out by scanning electron microscopy (SEM).
RESULTS
LIBS technique allowed an on-line precise control in the adhesive removal process. SEM analysis revealed the capability of the 355 nm UV laser radiation to complete the removal of the adhesive on the tooth with no signs of damage on the enamel.
CONCLUSION
Laser ablation process at 355 nm monitored by the LIBS technique allows to carry out efficient removal of the adhesive on teeth.
背景与目的
在托槽拆除后，需要从牙齿表面正确去除粘合剂，且不应对牙釉质造成任何医源性损伤。然而，传统技术无法实现选择性去除过程。本文重点研究了使用355nm激光辐射（调Q Nd:YAG的三倍频波长）在托槽拆除后去除牙齿上粘合剂的情况。
材料与方法
将托槽粘结到10颗来自年轻患者的拔除人类前磨牙上，在储存2个月后拆除。作为实时诊断技术，激光诱导击穿光谱（LIBS）元素分析用于精确控制粘合剂的去除，并通过扫描电子显微镜（SEM）对蚀刻表面进行形态分析。
结果
LIBS技术可在粘合剂去除过程中进行在线精确控制。SEM分析表明，355nm紫外激光辐射能够完全去除牙齿上的粘合剂，且牙釉质无损伤迹象。
结论
由LIBS技术监测的355nm激光烧蚀过程能够有效去除牙齿上的粘合剂。
Zotero 插件