Mohammad Noorjahan, Pattanaik Snigdha, Reddy Thimma Bv, Animireddy Dwitha, Ankireddy Swetha
Department of Pedodontics, Mamata Dental College, Khammam, Telangana, India.
Department of Orthodontics, Institute of Dental Sciences, Siksha O Anusandhan (Deemed to be University), Bhubaneswar, Odisha, India.
Int J Clin Pediatr Dent. 2019 Jan-Feb;12(1):5-9. doi: 10.5005/jp-journals-10005-1576.
This study evaluates the fracture strength of pulpotomized primary molars restored with amalgam, miracle mix, cermet, resin-modified glass ionomer cement, and nanocomposites.
Fifty primary first and second molars were collected for this study. All the teeth were randomly divided into five groups ( = 10). Standard pulpotomy cavities were prepared. Teeth were air dried and the canal orifices were capped with a layer of zinc oxide eugenol. A lining of calcium hydroxide was placed over it. Amalgam, miracle mix, cermet, resin-modified glass ionomer cement, and nanocomposite were placed in groups I, II, III, IV, and V, respectively. All the samples were then subjected to the fracture strength test using the universal testing machine and the results were statistically analyzed.
All the groups were compared by the ANOVA one-way test which indicated that there were statistically significant differences among the five groups.
Nanocomposites can be considered to be the best restorative material in terms of fracture strength among amalgam, miracle mix, cermet, and resin-modified glass ionomer cement.
Mohammad N, Pattanaik S, Comparative Evaluation of the Fracture Strength of Pulpotomized Primary Molars: An Study. Int J Clin Pediatr Dent 2019;12(1):5-9.
本研究评估用汞合金、神奇混合物、金属陶瓷、树脂改性玻璃离子水门汀和纳米复合材料修复的活髓切断术乳牙的抗折强度。
本研究收集了50颗第一乳磨牙和第二乳磨牙。所有牙齿随机分为五组(每组n = 10)。制备标准的活髓切断术洞形。牙齿吹干后,根管口用一层氧化锌丁香油覆盖。在其上放置一层氢氧化钙衬层。分别在第I、II、III、IV和V组中放置汞合金、神奇混合物、金属陶瓷、树脂改性玻璃离子水门汀和纳米复合材料。然后使用万能试验机对所有样本进行抗折强度测试,并对结果进行统计学分析。
通过单因素方差分析对所有组进行比较,结果表明五组之间存在统计学显著差异。
就抗折强度而言,纳米复合材料可被认为是汞合金、神奇混合物、金属陶瓷和树脂改性玻璃离子水门汀中最佳的修复材料。
穆罕默德·N,帕塔纳伊克·S,《活髓切断术乳牙抗折强度的比较评估》一项研究。《国际临床儿科学牙科杂志》2019;12(1):5 - 9。