Er: Yag激光拆除3种材质贴面的实验研究

doi:10.7518/hxkq.2023.2023038

华西口腔医学杂志 ›› 2023, Vol. 41 ›› Issue (5): 568-572.doi: 10.7518/hxkq.2023.2023038

Er: Yag激光拆除3种材质贴面的实验研究

朱建宇¹(), 洪菲菲¹, 何良航², 温玮², 雷贤林², 张志升¹, 尹路¹^,³()

^1.厦门医学院附属口腔医院，厦门市口腔疾病诊疗重点实验室，厦门 361000
^2.厦门医学院口腔医学系，厦门 361023
^3.口腔生物材料福建省高校工程研究中心，厦门医学院，厦门 361023

收稿日期:2023-02-07 修回日期:2023-06-19 出版日期:2023-10-01 发布日期:2023-10-08
通讯作者: 尹路 E-mail:j790408@hotmail.com;516021929@qq.com
作者简介:朱建宇，住院医师，硕士，E-mail：j790408@hotmail.com
基金资助:
厦门市科技计划项目(3502Z20224035);福建省医学创新课题(2022CXB022)

The removal of three kinds of occlusal veneers by Er: Yag laser

Zhu Jianyu¹(), Hong Feifei¹, He Lianghang², Wen Wei², Lei Xianlin², Zhang Zhisheng¹, Yin Lu¹^,³()

^1.Stomatological Hospital of Xiamen Medical College, Xiamen Key Laboratory of Stomatological Disease Diagnosis and Treatment, Xiamen 361000, China
^2.Dept. of Oral Medicine, Xiamen Medical College, Xiamen 361023, China
^3.Engineering Research Center of Fujian University for Stomatological Biomaterials, Xiamen Medical College, Xiamen 361023, China

Received:2023-02-07 Revised:2023-06-19 Online:2023-10-01 Published:2023-10-08
Contact: Yin Lu E-mail:j790408@hotmail.com;516021929@qq.com
Supported by:
Xiamen Science and Technology Project(3502Z20224035);Fujian Province Medical Innovation Project(2022CXB022)

摘要/Abstract

摘要：

目的本实验采用Er: Yag激光对不同厚度、不同材质贴面进行体外照射去粘接，通过分析比较Er:Yag激光对于贴面、牙体组织微观结构的影响，为激光无创拆除贴面提供理论依据。方法选取新鲜拔除正畸下颌前磨牙，标准化牙体预备后制作3种不同厚度（1.0、1.5、2.0 mm）和不同材质（Vita琥珀瓷、Vita MarkⅡ、润瓷）贴面进行粘接，1周后使用Er: Yag激光（2.5、3.5 W）照射贴面并记录时间。扫描电镜（SEM）观察去除后的微观形态。结果润瓷贴面经2.5或3.5 W Er: Yag激光长时间（>20 min）照射后仍无法取下；2.5 W Er: Yag激光去除粘接时间：1.0 mm Vita琥珀瓷组（96.0 s±16.0 s）大于1.0 mm Vita MarkⅡ组（84.5 s±19.5 s）（P<0.05）；1.5 mm Vita琥珀瓷组（246.5 s±13.5 s）大于1.5 mm Vita MarkⅡ组（170.0 s±14.0 s）（P<0.05）；3.5 W Er: Yag激光去除粘接时间：2.0 mm Vita琥珀瓷组（381.0 s±24.0 s）大于2.0 mm Vita MarkⅡ组（341.5 s±26.5 s）。结论同种材质、相同厚度情况下：激光功率越大，拆除时间越短，当功率较小时，可能导致贴面无法拆除。相同厚度、相同功率情况下：激光穿透瓷块到达粘接层可能对瓷块结构产生影响。同种材料、相同功率情况下：瓷块厚度越厚，拆除所需时间越长，所需功率越高。激光无法直接拆除树脂类贴面。

关键词: Er: Yag激光, （牙合）贴面, 去粘接, 树脂基陶瓷, 玻璃陶瓷, 扫描电镜

Abstract:

Objective This study aimed to remove occlusal veneers of varied thicknesses and compositions by Er:Yag laser in vitro and analyze the interfacial microstructure between veneers and tooth that irradiated by laser, by which experimental evidence could be provided to support the non-invasive removal of occlusal veneerby laser. Methods Fresh mandibular premolars extracted for orthodontic requirements were collected for tooth preparation. Three kinds of ceramic materials (Vita Suprinity, Vita Mark Ⅱ, and Upcera Hyramic) were selected to fabricate occlusal veneer with different thicknesses (1.0, 1.5, and 2.0 mm). One week later, Er:Yag laser (2.5 W and 3.5 W) was used to irradiate and remove the occlusal veneer and recorded the timespan. After the removal operation, the micro-morphologies of samples were examined by scanning electron microscope. Results Upcera Hyramic veneer failed to be removed (>20 min); the operation span at 2.5 W, Vita Suprinity (96.0 s±16.0 s) was longer than Vita MarkⅡ(84.5 s±19.5 s) in the 1.0 mm group (P<0.05), and Vita Suprinity (246.5 s±13.5 s) was longer than Vita MarkⅡ(170.0 s±14.0 s) in the 1.5 mm group (P<0.05). At 3.5 W, Vita Suprinity (381.0 s±24.0 s) was longer than Vita MarkⅡ(341.5 s±26.5 s) in the 2.0 mm group. Conclusion Increasing laser power could shorten the operation span and facilitate the removal of occlusal veneers with the same thickness and composition. The occlusal veneer was sustained when insufficient laser power was applied. With the same laser power and ceramic thickness, laser penetration could interfere with the integral of the ceramic structure when the laser interacted with the bonding layer. With the same ceramic composition and laser power, the operation span and laser power increased with the thickness of the occlusal veneer. However, the laser was incapable of removing occlusal resin veneer directly.

Key words: Er: Yag laser, occlusal veneer, debonding, resin-based ceramics, glass ceramics, scanning electron microscope

中图分类号:

R 783.2

朱建宇, 洪菲菲, 何良航, 温玮, 雷贤林, 张志升, 尹路. Er: Yag激光拆除3种材质贴面的实验研究[J]. 华西口腔医学杂志, 2023, 41(5): 568-572.

Zhu Jianyu, Hong Feifei, He Lianghang, Wen Wei, Lei Xianlin, Zhang Zhisheng, Yin Lu. The removal of three kinds of occlusal veneers by Er: Yag laser[J]. West China Journal of Stomatology, 2023, 41(5): 568-572.

图/表 3

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材料	成分	类型
Vita MarkⅡ	二氧化硅（60%~64%），氧化铝（20%~23%）	长石类
Vita琥珀瓷	二氧化硅（90%），氧化锆（10%）	玻璃陶瓷类
润瓷	树脂聚合物（13%~43%），无机填料（55%~85%）	树脂类

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Er: Yag激光拆除3种材质贴面的实验研究

The removal of three kinds of occlusal veneers by Er: Yag laser

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