El-Habashy Laila M, El Meligy Omar A
Quintessence Int. 2020;51(10):844-852. doi: 10.3290/j.qi.a45169.
To evaluate the clinical performance of the fiberglass "Figaro" crowns compared to preformed metal crowns (PMCs) in pulpotomized primary molars in children.
This split-mouth controlled randomized clinical study was performed on ten childrens, aged from 4 to 6 years, who needed complete oral rehabilitation under general anesthesia and had one pair or two pairs of their primary molars requiring pulpotomy. After pulp therapy, the teeth were randomly assigned to Figaro or PMC crown groups. Modified United States Public Health Service (USPHS) criteria were used to evaluate crown retention, marginal integration, crown discoloration, secondary caries, and gingival status, at 3 and 6 months. The data were analyzed using the chi-square test with Monte Carlo (MC) correction and McNemar (McN) test at a significance level of .05.
Ten patients (three boys, 30%; seven girls, 70%) with a mean age of 4.65 ± 0.709 years participated in this study. At 3 months follow-up, there was no significant difference between the groups, but at 6 months follow-up, Figaro crowns showed significant changes from intact crown to either chipped or large loss, whereas all PMCs were found intact (χ2 = 14.545, P[MC] = 0.000). There was also significant deterioration in Figaro crowns' color after 6 months (χ2[McN] = 8.1, P = .004).
PMCs were more durable than Figaro crowns, which showed significant deterioration after the 6-month follow-up period.
评估玻璃纤维“费加罗”冠与预成金属冠（PMC）相比，在儿童乳牙牙髓切断术中的临床性能。
本双盲对照随机临床研究对10名4至6岁的儿童进行，这些儿童需要在全身麻醉下进行全面口腔修复，且有一对或两对乳牙需要进行牙髓切断术。牙髓治疗后，将牙齿随机分配到费加罗冠组或PMC冠组。采用改良的美国公共卫生服务（USPHS）标准，在3个月和6个月时评估冠的固位、边缘密合性、冠变色、继发龋和牙龈状况。数据采用卡方检验并进行蒙特卡洛（MC）校正，以及 McNemar（McN）检验，显著性水平为0.05。
10名患者（3名男孩，30%；7名女孩，70%）参与了本研究，平均年龄为4.65±0.709岁。在3个月随访时，两组之间无显著差异，但在6个月随访时，费加罗冠出现了从完整冠到崩裂或大面积缺损的显著变化，而所有PMC均保持完整（χ2 = 14.545，P[MC] = 0.000）。6个月后，费加罗冠的颜色也出现了显著恶化（χ2[McN] = 8.1，P = 0.004）。
PMC比费加罗冠更耐用，费加罗冠在6个月的随访期后出现了显著恶化。
