中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (8): 1089-1094.doi: 10.3969/j.issn.2095-4344.2016.08.004

• 组织工程口腔材料 tissue-engineered oral materials • 上一篇    下一篇

氧化锆陶瓷与镍铬合金口腔材料的细菌黏附性对比

韩月红1,成之远2,王明德3   

  1. 1临朐县人民医院,山东省潍坊市 262600;2临朐县中医院,山东省潍坊市 262600;3潍坊市人民医院,山东省潍坊市 261041
  • 收稿日期:2015-12-30 出版日期:2016-02-19 发布日期:2016-02-19
  • 作者简介:韩月红,女,1965年生,山东省临朐县人,汉族,主治医师,主要从事口腔修复、口腔外科研究。

Bacterial adhesion of zirconia ceramics versus nickel chromium alloy as oral materials

Han Yue-hong1, Cheng Zhi-yuan2, Wang Ming-de3   

  1. 1Linqu County People’s Hospital, Weifang 262600, Shandong Province, China; 2Lingu County Hospital of Traditional Chinese Medicine, Weifang 262600, Shandong Province, China; 3Weifang People’s Hospital, Weifang 261041, Shandong Province, China
  • Received:2015-12-30 Online:2016-02-19 Published:2016-02-19
  • About author:Han Yue-hong, Attending physician, Linqu County People’s Hospital, Weifang 262600, Shandong Province, China

摘要:

文章快速阅读:

文题释义:

氧化锆陶瓷修复材料:氧化锆是一种生物惰性陶瓷材料,已有大量实验表明其具有优良的生物学性能及力学性能,在医学临床上可作为骨替代体及牙义齿修复体,将其运用于牙齿冠修复时,不仅有较好的机械性能,还具有较好的通透性及美学效应,形态逼真。
镍铬合金修复材料:是一种以镍铬为主要成分的金属,质轻,具有良好的机械强度、弹性模量及抗腐蚀性,生物学性能及物理性能优异,常可制作成金属全冠和烤瓷冠。但合金中的镍化学性质不稳定,析出后对人体有致敏性和致癌性,会引起部分人牙龈轻微发炎,导致烤瓷牙与牙龈接触的地方轻微的红肿,有害牙龈健康,影响美观。

 

背景:实验及临床经验表明,修复材料表面的粗糙度直接影响细菌的黏附性,除此之外,材料组成及本身理化性质也是重要影响因素。
目的:对比氧化锆陶瓷与镍铬合金口腔材料的细菌黏附性。
方法:将氧化锆陶瓷、镍铬合金分别制成 3.0 cm × 3.0 cm × 0.2 cm 的板片,每种材料各10 片。两种材料各选取其中5片进行抛光处理,另5片进行上釉处理,检测4组试件的粗糙度。将变形链球菌浮液滴加于4组材料表面,37 ℃ 厌氧培养48 h,检测各组细菌黏附数量。
结果与结论:4组试件表面粗糙度比较差异无显著性意义。氧化锆陶瓷抛光组的细菌黏附量明显小于镍铬合金抛光组(P < 0.05),氧化锆陶瓷上釉组的细菌黏附量与镍铬合金上釉组比较差异无显著性意义。结果表明氧化锆陶瓷具有较好抑制细菌黏附的效果,其上釉处理后抑制细菌黏附的效果与镍铬合金上釉处理后的相当。 

ORCID: 0000-0002-8859-7123(韩月红)

关键词: 生物材料, 口腔生物材料, 氧化锆陶瓷, 镍铬合金, 变形链球菌, 细菌黏附性

Abstract:

BACKGROUND: Experimental and clinical experiences show that the surface roughness of dental restoration materials directly affects bacterial adhesion; in addition, the material composition and physicochemical properties are also important influencing factors.
OBJECTIVE: To compare the bacterial adhesion of zirconia ceramics and nickel chromium alloy as oral materials.
METHODS: Zirconia ceramics and nickel chromium alloy were respectively cut into 10 pieces of 3. 0 cm ×3.0 cm×0. 2 cm plate specimens. For each material, five pieces were subjected to surface polishing treatment, and the other five pieces were glazed. Surface roughness value of specimens was detected. Experimental strains of Streptococcus mutans was cultured on the specimen surface at 37 ℃ for 48 hours, and the amount of bacteria adhering to the specimen surface was detected.
RESULTS AND CONCLUSION: Surface roughness of four groups of specimens showed no difference. The amount of bacteria that adhered to the polishing specimens of zirconia ceramics was significantly lower than that of nickel chromium alloy (P < 0.05), but no difference was found in the amount of bacteria adhering to the glazing specimens of nickel-chromium alloy and zirconia ceramics. These findings indicate that zirconia ceramics has better ability to inhibit bacterial adhesion than nickel-chromium alloy, especially after glazing.