Wuersching Sabina Noreen, Moser Luise, Obermeier Katharina Theresa, Kollmuss Maximilian
Department of Conservative Dentistry and Periodontology, LMU University Hospital, LMU Munich, 80336 Munich, Germany.
Department of Oral and Maxillofacial Surgery and Facial Plastic Surgery, LMU University Hospital, LMU Munich, 80337 Munich, Germany.
J Clin Med. 2023 Jul 18;12(14):4762. doi: 10.3390/jcm12144762.
A tight temporary seal applied to an access cavity is thought to improve endodontic outcomes. This study aims to assess the bacterial and glucose microleakage of different types and combinations of temporary restorations. Human-extracted incisors were instrumented, dressed with a calcium hydroxide paste, and sealed with Cavit W (CW), CW/Ketac Molar (CW/KM), CW/Smart Dentin Replacement (CW/SDR), Intermediate restorative material/KM (IRM/KM), or Clip F (CF). Standardized 3D-printed hollow test specimens were manufactured and temporized in the same manner. The specimens were examined for bacterial and glucose leakage for 28 days. Data were analyzed using a Kaplan-Meier survival analysis. CW/SDR and CF showed the least bacterial and glucose leakage over time. CW, CW/KM, and IRM/KM had similarly high levels of glucose leakage, but CW/KM and IRM/KM provided a tighter seal against bacterial penetration than CW. CW/SDR and CF should be considered for the sealing of access cavities of teeth previously restored with methacrylate-based materials.
应用于进入腔的紧密临时封闭被认为可改善根管治疗效果。本研究旨在评估不同类型及组合的临时修复体的细菌和葡萄糖微渗漏情况。对拔除的人切牙进行根管预备，用氢氧化钙糊剂封药，并用Cavit W（CW）、CW/光固化玻璃离子水门汀（CW/KM）、CW/智能牙本质替代材料（CW/SDR）、暂封王/光固化玻璃离子水门汀（IRM/KM）或Clip F（CF）进行封闭。采用标准化3D打印的中空测试标本并以相同方式进行暂封。对标本进行28天的细菌和葡萄糖渗漏检测。数据采用Kaplan-Meier生存分析进行分析。随着时间推移，CW/SDR和CF的细菌和葡萄糖渗漏最少。CW、CW/KM和IRM/KM的葡萄糖渗漏水平相似，但CW/KM和IRM/KM对细菌渗透的封闭比CW更紧密。对于先前用甲基丙烯酸酯类材料修复的牙齿的进入腔封闭，应考虑使用CW/SDR和CF。
