中国组织工程研究

中国组织工程研究 ›› 2011, Vol. 15 ›› Issue (8): 1442-1444.doi: 10.3969/j.issn.1673-8225.2011.08.027

• 生物材料临床实践 clinical practice of biomaterials • 上一篇    下一篇

全口义齿基托及金属网状支架异常变色1例

周  亚，王  敏，罗  云   

  1. 口腔疾病研究国家重点实验室（四川大学），四川大学华西口腔医院，四川省成都市   610041
  • 收稿日期:2010-09-09 修回日期:2010-10-14 出版日期:2011-02-19 发布日期:2011-02-19
  • 通讯作者: 王敏，教授，四川大学华西口腔医学院修复科，口腔疾病研究国家重点实验室，四川省成都市 610041 hxkqwangm@163.com
  • 作者简介:周亚★，女，1981年生，汉族，四川大学华西口腔医学院在读硕士，主要从事口腔修复学研究。 398219369@qq.com
  • 基金资助:

    四川省科技厅公益项目（2008FN0174），项目名称：原发性高血压与牙槽骨吸收相关性研究。

Abnormal discoloration of complete denture base and metal mesh stent in one case

Zhou Ya, Wang Min, Luo Yun   

  1. State Key Laboratory of Oral Diseases (Sichuan University), West China Stomatology Hospital of Sichuan University, Chengdu   610041, Sichuan Province, China
  • Received:2010-09-09 Revised:2010-10-14 Online:2011-02-19 Published:2011-02-19
  • Contact: Wang Min, Professor, State Key Laboratory of Oral Diseases (Sichuan University), West China Stomatology Hospital of Sichuan University, Chengdu 610041, Sichuan Province, China hxkqwangm@163.com
  • About author:Zhou Ya★, Studying for master’s degree, State Key Laboratory of Oral Diseases (Sichuan University), West China Stomatology Hospital of Sichuan University, Chengdu 610041, Sichuan Province, China 398219369@qq.com
  • Supported by:

    Public Projects of Science and Technology Department of Sichuan Province, No. 2008FN0174*

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摘要：

背景：临床工作中经常见到全口义齿基托表面色素沉着的病例，但义齿基托内金属表面及周围材料变色的病例十分罕见。
目的：分析1例全口义齿基托及金属网状支架异常变色的原因。
方法：取部分义齿变色均匀基托作为样本，用体视显微镜观察并记录基托表面变化。获取变色物质，将变色物质与周围正常基托进行傅里叶红外光谱分析比较。
结果与结论：体视显微镜下观察见样本基托表面大面积不规则裂纹，经测量裂纹最宽处约为860 nm。红外分析结果显示变色物质与正常基托组织波峰相似，未见氧化物特征波峰。提示该义齿变色原因在于基托表面出现裂纹引起色素沉着。

关键词: 聚甲基丙烯酸甲酯, 变色, 裂纹, 材料疲劳, 红外光谱分析, 口腔生物材料

Abstract:

BACKGROUND: There are many cases in clinic that complete denture base surface has pigmentation, but the discolor in metal mesh stent surface and the surrounding materials in denture base is very rare.
OBJECTIVE: To analyze the reason of a complete denture base and metal mesh stent abnormal discoloration in one case.
METHODS: Part of discolored uniform base were taken as samples, the surface changes was observed and recorded by stereo microscope. The discoloration materials were acquired, and Fourier infrared spectral analysis was used to compare the discoloration materials and surrounding normal base.
RESULTS AND CONCLUSION: The sample base was observed to show large area cracks by stereo microscope and the maximum width was measured at 860 nm. Infrared spectral result indicated that the wave of discoloration materials was similar to the normal base, there was not observed oxide characteristics peak. This gives us a cue that the discoloration lies in the surface cracks caused pigmentation.

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