Yadav Gunjan, Rehani Usha, Rana Vivek
Senior Lecturer, Department of Pedodontics, Sardar Patel Post Graduate Institute of Dental and Medical Sciences, Lucknow, Uttar Pradesh, India, e-mail:
Ex-Professor and Head, Department of Pedodontics and Preventive Dentistry, Subharti Dental College, Meerut, Uttar Pradesh, India.
Int J Clin Pediatr Dent. 2012 May;5(2):101-7. doi: 10.5005/jp-journals-10005-1145. Epub 2012 Aug 8.
Microleakage around dental restorative materials is a major problem in clinical dentistry. Inspite of many new restorative materials available in the market very few actually bond to the tooth surface.
The aims of this study were: (1) To evaluate and compare the marginal leakage of newer restorative materials viz colored compomer, ormocer, giomer and RMGIC in class I restoration of deciduous molars. (2) To compare the microleakage scores between the groups of: Colored compomer and ormocer, giomer and RMGIC, ormocer with giomer and RMGIC, giomer with RMGIC.
A total of 40 primary molars were randomly divided into four groups of 10 each. Class I cavities were prepared and the cavities were restored with colored compomer (Group A), Ormocer (Group B), Giomer (Group C) and RMGIC (Group D). The teeth were thermocycled and subjected to 0.5% basic fuchsin dye penetration followed by sectioning. The cut sections were evaluated under a stereomicroscope and the data was subjected to statistical analysis.
Mann-Whitney U test and Student t-test.
No significant difference was observed when colored compomer was compared to ormocer, giomer and RMGIC. Ormocer showed significantly lower microleakage when compared to giomer. However, no significant difference was observed when ormocer was compared to RMGIC. No significant difference between giomer and RMGIC was found.
Ormocer has proven to be an excellent restorative material as it showed least microleakage followed by colored compomer, giomer and RMGIC in increasing order. How to cite this article: Yadav G, Rehani U, Rana V. A Comparative Evaluation of Marginal Leakage of Different Restorative Materials in Deciduous Molars: An in vitro Study . Int J Clin Pediatr Dent 2012;5(2):101-107.
牙科修复材料周围的微渗漏是临床牙科中的一个主要问题。尽管市场上有许多新型修复材料,但实际上很少能与牙齿表面粘结。
本研究的目的是:(1)评估并比较新型修复材料即彩色复合体、有机陶瓷、聚酸改性玻璃离子复合体和树脂改性玻璃离子水门汀在乳牙第一类洞修复中的边缘渗漏情况。(2)比较彩色复合体与有机陶瓷、聚酸改性玻璃离子复合体与树脂改性玻璃离子水门汀、有机陶瓷与聚酸改性玻璃离子复合体及树脂改性玻璃离子水门汀、聚酸改性玻璃离子复合体与树脂改性玻璃离子水门汀各组之间的微渗漏评分。
总共40颗乳牙随机分为四组,每组10颗。制备第一类洞型,并用彩色复合体(A组)、有机陶瓷(B组)、聚酸改性玻璃离子复合体(C组)和树脂改性玻璃离子水门汀(D组)进行修复。对牙齿进行热循环处理,然后用0.5%碱性品红染料渗透,随后进行切片。在体视显微镜下评估切片,并对数据进行统计分析。
曼-惠特尼U检验和学生t检验。
将彩色复合体与有机陶瓷、聚酸改性玻璃离子复合体和树脂改性玻璃离子水门汀进行比较时,未观察到显著差异。与聚酸改性玻璃离子复合体相比,有机陶瓷的微渗漏显著更低。然而,将有机陶瓷与树脂改性玻璃离子水门汀进行比较时,未观察到显著差异。聚酸改性玻璃离子复合体与树脂改性玻璃离子水门汀之间未发现显著差异。
事实证明,有机陶瓷是一种优异的修复材料,因为它的微渗漏最少,其次是彩色复合体、聚酸改性玻璃离子复合体和树脂改性玻璃离子水门汀,呈递增顺序。如何引用本文:Yadav G, Rehani U, Rana V. A Comparative Evaluation of Marginal Leakage of Different Restorative Materials in Deciduous Molars: An in vitro Study. Int J Clin Pediatr Dent 2012;5(2):101 - 107.