Topçuoğlu Hüseyin Sinan, Düzgün Salih, Akyüz İpek Eraslan, Manolya Özdemır İlke
Department of Endodontics, Faculty of Dentistry, Erciyes University, Melikgazi, Kayseri, Business, 38039, Turkey.
BMC Oral Health. 2025 Mar 18;25(1):400. doi: 10.1186/s12903-025-05783-z.
This study aimed to evaluate the effect of different temporary filling (TF) materials and pre-endodontic build-up on upper premolar teeth fracture resistance (FR).
90 premolar teeth were selected. Except for 5 randomly selected teeth in the negative control group (group 1, intact teeth), mesio-occluso-distal cavities were prepared for the remaining teeth. The canals were shaped with OneCurve (#25/0.6) files. Irrigation was performed with sodium hypochlorite and ethylenediaminetetraacetic acid. Then calcium hydroxide was placed into the canals. Five teeth were selected as the positive control group (group 2, Temporary filling material not applied). The remaining 80 teeth were then randomly divided into 4 groups. TF was performed with Cavit G in group 3 and Voco Clip F in group 5. In groups 4 and 6, cavities were built up with composite, and TF was performed with Cavit G in group 4 and Voco Clip F in group 6. A Universal testing machine was used for FR testing. A two-way ANOVA test was performed for statistical analysis.
The FR of the group 1 was higher than the other groups (p < 0.05). The FR of groups 4 and 6 was significantly higher than groups 3 and 5 (p < 0.05). Group 2 has the lowest FR (p < 0.05). The most common type of fractures were restorable fractures. There is a significant difference between the experimental groups (p < 0.05).
During endodontic treatment, placing TF materials after pre-endodontic build-up until the permanent restoration is completed increases the FR of the teeth.
本研究旨在评估不同的临时充填（TF）材料和根管治疗前的牙体 buildup 对上前磨牙抗折性（FR）的影响。
选取 90 颗前磨牙。除阴性对照组（第 1 组，完整牙齿）中随机选取的 5 颗牙齿外，其余牙齿均制备近中-咬合-远中洞型。使用 OneCurve（#25/0.6）锉对根管进行预备。用次氯酸钠和乙二胺四乙酸进行冲洗。然后将氢氧化钙放入根管内。选取 5 颗牙齿作为阳性对照组（第 2 组，未应用临时充填材料）。其余 80 颗牙齿随即分为 4 组。第 3 组用 Cavit G 进行临时充填，第 5 组用 Voco Clip F 进行临时充填。在第 4 组和第 6 组中，用复合树脂进行洞型 buildup，第 4 组用 Cavit G 进行临时充填，第 6 组用 Voco Clip F 进行临时充填。使用万能试验机进行抗折性测试。采用双向方差分析进行统计学分析。
第 1 组的抗折性高于其他组（p < 0.05）。第 4 组和第 6 组的抗折性显著高于第 3 组和第 5 组（p < 0.05）。第 2 组的抗折性最低（p < 0.05）。最常见的骨折类型是可修复性骨折。各实验组之间存在显著差异（p < 0.05）。
在根管治疗期间，在根管治疗前进行牙体 buildup 后放置 TF 材料直至完成永久修复可提高牙齿的抗折性。
