Silva Sérgio Ribeiro da, Silva José Dias da, Schnaider Taylor Brandão, Veiga Daniela Francescato, Novo Neil Ferreira, Mesquita Marcos, Ferreira Lydia Masako
Fellow Master degree, Professional Master's Program in Applied Health, Universidade di Vale do Sapucaí (UNIVÁS), Pouso Alegre-MG, and Universidade Federal de São Paulo (UNIFESP), Sao Paulo-SP, Brazil. Conception, design, intellectual and scientific content of the study; acquisition, interpretation and analysis of data; manuscript writing.
PhD, Associate Professor, Professional Master's Program in Applied Health Sciences, UNIVÁS, Pouso Alegre-MG, Brazil. Conception, design, intellectual and scientific content of the study; acquisition, interpretation and analysis of data; manuscript writing; critical revision.
Acta Cir Bras. 2016 Jun;31(6):422-7. doi: 10.1590/S0102-865020160060000010.
To evaluate the clinical applicability of Pozzolana Biologic Silva cement (PBS(r)) in endodontic surgery.
Persistent apical periodontitis was diagnosed in 30 teeth of 12 patients by cone-beam computed tomography (CT). All patients had 2 or 4 affected teeth and underwent endodontic surgery with root-end filling. Patients with 2 affected teeth had one tooth (control) treated with mineral trioxide aggregate (MTA-Angelus(r)) as a root-end filling material, and the other tooth treated with PBS (experiment). When the patient had four affected teeth, two of them were treated with MTA and two with PBS. Six months after surgery, all patients were assessed by CT scan. Between-group comparisons of measurements were performed using the Wilcoxon test.
Periradicular tissue regeneration was observed in all cases. Significant within-group differences in long axes of the lesion were found in the bucco-palatal direction (PBS group, p=0.0012; MTA group, p=0.024) and coronal-apical direction (PBS group, p=0.0007; MTA group, p=0.0015) between pre- and postoperative measurements.
Pozzolana Biologic Silva cement can be used in the treatment of persistent periradicular lesions. The clinical use of PBS as a root-end filling material may be an alternative to MTA. PBS has additives, which provide enhanced strength.
评估火山灰生物席尔瓦水泥（PBS(r)）在牙髓外科手术中的临床适用性。
通过锥形束计算机断层扫描（CT）对12例患者的30颗牙齿诊断为持续性根尖周炎。所有患者有2颗或4颗患牙，并接受了牙髓外科手术及根尖倒充填。有2颗患牙的患者，一颗牙齿（对照）用三氧化矿物凝聚体（MTA-Angelus(r)）作为根尖倒充填材料进行治疗，另一颗牙齿用PBS（试验）治疗。当患者有4颗患牙时，其中两颗用MTA治疗，两颗用PBS治疗。术后6个月，通过CT扫描对所有患者进行评估。测量值的组间比较采用Wilcoxon检验。
所有病例均观察到根尖周组织再生。术前和术后测量之间，在颊腭方向（PBS组，p = 0.0012；MTA组，p = 0.024）和冠根方向（PBS组，p = 0.0007；MTA组，p = 0.0015）的病变长轴内发现了显著的组内差异。
火山灰生物席尔瓦水泥可用于治疗持续性根尖周病变。PBS作为根尖倒充填材料的临床应用可能是MTA的一种替代方法。PBS含有添加剂，可提供增强的强度。
