PDF(Pubmed)
Abstract：
BACKGROUND: This study aimed to assess the quality of various obturation techniques to fill perforation caused by internal root resorption using Micro-computed Tomography.
METHODS: Cone-beam computed tomography images of a maxillary central incisor tooth with perforating internal resorptive defect were used to create a 3D printed model of the affected tooth. The replicas were divided into four groups based on the obturation technique used. The techniques included Group 1: a polydimethylsiloxane-based sealer (GuttaFlow-2) with gutta-percha. Group 2: same as Group 1 except for using a pre-mixed Bioceramic-based sealer (NeoSEALER Flo). Group 3: the defect was filled entirely using the NeoSealer Flo Bioceramic-based sealer. Group 4: the samples were obturated using the warm vertical compaction technique with a resin-based sealer (ADSeal). The resin models were then scanned a micro-computed scanner to evaluate the percentage of voids in each group.
RESULTS: The results showed that NeoSEALER Flo groups had significantly the highest volume of voids while GuttaFlow-2 and warm vertical compaction groups had the lowest void volume.
CONCLUSIONS: GuttaFlow-2 and warm vertical compaction techniques performed best in filling the internal resorptive defect.
METHODS: Cone-beam computed tomography images of a maxillary central incisor tooth with perforating internal resorptive defect were used to create a 3D printed model of the affected tooth. The replicas were divided into four groups based on the obturation technique used. The techniques included Group 1: a polydimethylsiloxane-based sealer (GuttaFlow-2) with gutta-percha. Group 2: same as Group 1 except for using a pre-mixed Bioceramic-based sealer (NeoSEALER Flo). Group 3: the defect was filled entirely using the NeoSealer Flo Bioceramic-based sealer. Group 4: the samples were obturated using the warm vertical compaction technique with a resin-based sealer (ADSeal). The resin models were then scanned a micro-computed scanner to evaluate the percentage of voids in each group.
RESULTS: The results showed that NeoSEALER Flo groups had significantly the highest volume of voids while GuttaFlow-2 and warm vertical compaction groups had the lowest void volume.
CONCLUSIONS: GuttaFlow-2 and warm vertical compaction techniques performed best in filling the internal resorptive defect.
摘要：
背景：这项研究旨在使用微型计算机断层扫描技术评估由内部牙根吸收引起的填充穿孔的各种闭塞技术的质量。
方法：使用带有穿孔内部再吸收缺损的上颌中切牙的锥形束计算机断层扫描图像来创建受影响牙齿的3D打印模型。根据所使用的闭塞技术将复制品分为四组。该技术包括第1组:具有古塔胶的基于聚二甲基硅氧烷的密封剂(GuttaFlow-2)。组2:与组1相同,除了使用预混合的基于生物陶瓷的密封剂(NeoSEALERFlo)。组3:使用基于NeoSealerFlo生物陶瓷的封口机完全填充缺陷。组4:使用具有树脂基密封剂(ADSeal)的热垂直压实技术封闭样品。然后用微型计算机扫描仪扫描树脂模型以评估每组中空隙的百分比。
结果：结果表明，NeoSEALERFlo组的空隙体积显着最高，而GuttaFlow-2和温暖的垂直压实组的空隙体积最低。
结论：GuttaFlow-2和热垂直压实技术在填充内部吸收性缺损方面表现最佳。
方法：使用带有穿孔内部再吸收缺损的上颌中切牙的锥形束计算机断层扫描图像来创建受影响牙齿的3D打印模型。根据所使用的闭塞技术将复制品分为四组。该技术包括第1组:具有古塔胶的基于聚二甲基硅氧烷的密封剂(GuttaFlow-2)。组2:与组1相同,除了使用预混合的基于生物陶瓷的密封剂(NeoSEALERFlo)。组3:使用基于NeoSealerFlo生物陶瓷的封口机完全填充缺陷。组4:使用具有树脂基密封剂(ADSeal)的热垂直压实技术封闭样品。然后用微型计算机扫描仪扫描树脂模型以评估每组中空隙的百分比。
结果：结果表明，NeoSEALERFlo组的空隙体积显着最高，而GuttaFlow-2和温暖的垂直压实组的空隙体积最低。
结论：GuttaFlow-2和热垂直压实技术在填充内部吸收性缺损方面表现最佳。
