Tripathi Shubham, Patni Pallav Mahesh, Jain Pradeep, Raghuwanshi Swadhin, Pandey Sanket H, Soni Ankita, Jain Swati
Sri Aurobindo College of Dentistry, Sri Aurobindo University Indore, MP, India.
Int J Burns Trauma. 2023 Jun 15;13(3):116-125. eCollection 2023.
This research aims to assess and analyze the fracture resistance of GC Everstick post with separate composite core buildup and Edelweiss prefabricated resin composite post and core single unit into immediate and delayed post space prepared teeth.
A total of 120 extracted human mandibular premolars have been subjected to a standardized protocol of mechanical trauma to simulate tooth fracture. Teeth samples were randomly divided into four groups (n = 30) on the basis of time taken for the preparation of post space (approximately following root canal obturation and 24 h after root canal obturation) for the single unit Edelweiss post and core system and GC post with separate core buildup. Compressive load has been utilized to do the analysis necessary to establish the fracture resistance using a universal testing machine. The fracture force calculated was in Newtons (N), and a stereomicroscope was utilized for investigating the common causes of failure.
In an immediate post space prepared tooth, the GC post exhibited a mean failure load of 970.584 N. In contrast, the Edelweiss post, and core system showed a significantly higher mean failure load of 1250.349 N. In delayed post space prepared tooth, the GC Everstick post exhibited a mean failure load of 950.287 N. In contrast, the Edelweiss post, and core system showed a significantly higher mean failure load of 1229.348 N.
This study aims to assess and analyze the fracture resistance of the GC Everstick post with separate composite core buildup and the Edelweiss prefabricated resin composite post and core single unit in immediate and delayed post space prepared teeth. The study results showed that the failure modes in both groups were non-catastrophic in nature. These findings suggest that the Edelweiss post and core system may be a more suitable option for restoring teeth that have been subjected to traumatic conditions. The study provides valuable information for dental professionals in their decision-making process for post and core restoration techniques in teeth that have been subjected to trauma.
本研究旨在评估和分析采用单独复合树脂核堆塑的GC Everstick桩以及雪绒花预成树脂复合桩核单桩，在即刻和延迟制备桩道的牙齿中的抗折性能。
总共120颗拔除的人类下颌前磨牙接受了标准化的机械创伤方案以模拟牙齿折断。根据单桩雪绒花桩核系统和采用单独核堆塑的GC桩制备桩道的时间（大致在根管充填后以及根管充填后24小时），将牙齿样本随机分为四组（每组n = 30）。使用万能试验机施加压缩载荷，进行确定抗折性能所需的分析。计算得到的折断力以牛顿（N）为单位，并用体视显微镜研究常见的失败原因。
在即刻制备桩道的牙齿中，GC桩的平均破坏载荷为970.584 N。相比之下，雪绒花桩核系统的平均破坏载荷显著更高，为1250.349 N。在延迟制备桩道的牙齿中，GC Everstick桩的平均破坏载荷为950.287 N。相比之下，雪绒花桩核系统的平均破坏载荷显著更高，为1229.348 N。
本研究旨在评估和分析采用单独复合树脂核堆塑的GC Everstick桩以及雪绒花预成树脂复合桩核单桩，在即刻和延迟制备桩道的牙齿中的抗折性能。研究结果表明，两组的失败模式本质上均为非灾难性的。这些发现表明，雪绒花桩核系统可能是修复遭受创伤牙齿的更合适选择。该研究为牙科专业人员在创伤后牙齿桩核修复技术的决策过程中提供了有价值的信息。
