Ghanem Naif, Ali Hasan, Bahrli Nasser, Hassan Hazem
Department of Fixed Prosthodontics, Faculty of Dentistry, Tishreen University, Latakia, Syria.
Department of Pediatric Dentistry, Faculty of Dentistry, Tishreen University, Latakia, Syria.
Clin Exp Dent Res. 2024 Apr;10(2):e854. doi: 10.1002/cre2.854.
Comparing the survival rate and the cumulative success rates of custom-milled polyetherketone ketone posts and cores (MPP) with prefabricated fiber posts (PFP) in restoring compromised endodontically treated premolars.
This was a randomized, double-blind, parallel, two-arm controlled pilot study. A total of 24 patients (12 males, 12 females), each had a compromised lower premolar, needed a root canal treatment and to be restored with post and core. Patients were randomly allocated into two groups, MPP-group: restored with MPP, and PFP-group: restored with PFP and composite cores. After that, premolars were restored with single porcelain fused to metal (PFM) crowns. Clinical and radiographic follow-ups were conducted after 3, 6, and 12 months. The Kaplan-Meier, log-Rank, and χ tests were used to investigate differences between the two groups at the 0.05 significance level.
The survival rate after 12 months in the MPP and PFP groups was 66.7% and 100%, respectively. Meanwhile, the cumulative success rates were 63.6% and 100% in the same order. The log-rank test showed a significant difference between the two groups (p = .031). The difference in cumulative success rates was also significant, as the χ test revealed (p = .011).
The PFP group showed a higher success rate than the MPP group and according to the failure types, PEKK posts seem to be inferior to PFP in terms of the mechanical properties and bonding to resin mechanism.
ISRCTN, ISRCTN13456471. October, 14, 2019. (https://doi.org/10.1186/ISRCTN13456471ISRCTN13456471).
比较定制加工的聚醚酮酮桩核（MPP）与预制纤维桩（PFP）在修复根管治疗后受损前磨牙时的生存率和累积成功率。
这是一项随机、双盲、平行、双臂对照的前瞻性研究。共有24例患者（12例男性，12例女性），每人有一颗受损的下颌前磨牙，需要进行根管治疗并使用桩核修复。患者被随机分为两组，MPP组：用MPP修复；PFP组：用PFP和复合树脂核修复。之后，前磨牙用单颗金属烤瓷冠（PFM）修复。在3、6和12个月后进行临床和影像学随访。采用Kaplan-Meier法、对数秩检验和χ检验，在0.05显著性水平下研究两组之间的差异。
MPP组和PFP组12个月后的生存率分别为66.7%和100%。同时，累积成功率依次为63.6%和100%。对数秩检验显示两组之间存在显著差异（p = 0.031）。累积成功率的差异也很显著，χ检验显示（p = 0.011）。
PFP组的成功率高于MPP组，根据失败类型，聚醚酮酮桩在机械性能和与树脂的粘结机制方面似乎不如PFP。
ISRCTN，ISRCTN13456471。2019年10月14日。（https://doi.org/10.1186/ISRCTN13456471ISRCTN13456471）
