Department of Endodontics, Fluminense Federal University, Niterói, Rio de Janeiro, Brazil.
Department of Endodontics, School of Dentistry Federal University of Mato Grosso do Sul, Campo Grande, Brazil.
Aust Endod J. 2024 Apr;50(1):60-68. doi: 10.1111/aej.12806. Epub 2023 Oct 24.
This study evaluated the impact of long-term storage conditions (medium and time) on the development of experimental dentinal microcracks through micro-computed tomography. Sixty freshly extracted premolars were stored in formalin, water, or dry conditions (n = 20) and scanned after 72 h, 30 days, 6 months and 3 years of extraction. The effect of the storage medium and time on the occurrence of dentinal defects was statistically evaluated. A total of 211 000 images were screened revealing the existence of 11 519 slices with dentinal defects. Dry conditions significantly contributed to the development of new defects in all time points. During the 3-year follow-up period, no new defects were detected in the teeth that were stored in water and, in a single tooth, in the formalin group, after 6 months of storage.
本研究通过微计算机断层扫描评估了长期储存条件（介质和时间）对实验性牙本质微裂纹发展的影响。60 颗新鲜拔出的前磨牙分别储存在福尔马林、水或干燥条件下（n=20），并在提取后 72 小时、30 天、6 个月和 3 年进行扫描。统计评估了储存介质和时间对牙本质缺陷发生的影响。共筛选了 211000 张图像，显示存在 11519 张有牙本质缺陷的切片。干燥条件显著增加了所有时间点新缺陷的发生。在 3 年的随访期间，在水储存的牙齿中，以及在储存 6 个月后的福尔马林组中的单个牙齿中，均未检测到新的缺陷。
