Das Siddhartha, Ghosh Subhashis, Tu Qisheng, Zhu Zoe Xiaofang, Chen Jake Jinkun
Basic and Clinical Translational Sciences, Tufts Graduate School of Biomedical Sciences, Tufts University School of Medicine, 136 Harrison Ave, M&V Room 830, Boston, MA, 02111, USA.
Department of Genetics, Molecular and Cell Biology, Tufts Graduate School of Biomedical Sciences, Tufts University School of Medicine, 136 Harrison Ave, M&V Room 830, Boston, MA, 02111, USA.
Sci Rep. 2025 Apr 30;15(1):15208. doi: 10.1038/s41598-025-99923-8.
Periodontal ligament (PDL) consists mainly of collagen fiber bundles with specialized mechanoreceptors and free nerve endings that connect the cementum of the tooth root to alveolar bone and are vital for dental proprioceptive function. When a tooth is lost and replaced with a dental implant, osseointegration occurs without the intervening PDL, leading to a loss of proprioceptive function. Herein we report the placement, and healthy integration of an advanced dental implant in the socket of rat study models without facilitating the process of osseointegration, that could possibly impart proprioceptive features comparable to those noted in natural teeth. The experimental surgical procedure during dental implant installation in rat models involved various oral tissue structures surrounding the teeth as analogous to those in human subjects and therefore bears a significant clinical relevance. Additionally, the surgical procedure detailed here confers the advantages of its use to investigate not only dental implants but also could be explorative for a wide range of extra-oral implants for improved neural integration.
牙周韧带(PDL)主要由胶原纤维束组成,带有特殊的机械感受器和游离神经末梢,这些结构将牙根的牙骨质与牙槽骨相连,对牙齿本体感觉功能至关重要。当牙齿缺失并被牙种植体替代时,骨结合过程中没有中间的牙周韧带介入,导致本体感觉功能丧失。在此,我们报告在大鼠研究模型牙槽窝中植入并成功健康整合一种先进牙种植体的情况,该过程未促进骨结合,却可能赋予与天然牙相当的本体感觉特性。在大鼠模型中安装牙种植体的实验性手术过程涉及牙齿周围的各种口腔组织结构,与人类受试者相似,因此具有重要的临床意义。此外,此处详述的手术过程不仅在研究牙种植体方面具有应用优势,还可用于探索多种口腔外种植体以改善神经整合。