■带状牙冠是修复受儿童早期龋齿影响的前牙的首选治疗方法。然而,树脂复合材料的阴影匹配仍然是一个问题。最近推出的单色调复合材料的广泛配色能力,Omnichroma消除了对阴影匹配程序的需要,减少复合库存,并最大限度地减少椅子侧的时间。
■目的是评估颜色匹配,颜色稳定性,并保留一个阴影通用复合树脂,全铬酸盐和纳米杂化树脂复合材料,Tetric-N-Ceram。
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■本研究设计涉及口开随机对照试验。
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■这项研究是对25名3-5岁儿童进行的,这些儿童患有原发性上颌前牙的多表面龋齿病变。牙齿被随机分配到两组:第1组-一个遮阳通用复合材料,Omnichroma(n=25),第2组-纳米杂化复合材料,Tetric-N-Ceram(n=25)。龋齿开挖和牙齿准备后,使用条形牙冠用相应的材料修复牙齿。基线颜色匹配,颜色稳定性,和随访6个月和12个月后的保留率使用修改后的美国公共卫生服务标准进行评估.
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■使用Mann-WhitneyU检验和Wilcoxon符号秩检验对数据进行分析。
■关于全色质和Tetric-N-Ceram组的比较,基线时的颜色匹配(P=0.716),6个月和12个月时的颜色稳定性(6个月时P=0.575,12个月时P=0.990)和保留率(6个月时P=0.153,12个月时P=0.226)均无统计学差异.关于组内比较,两组在6个月和12个月间隔的颜色稳定性差异具有统计学意义(P=0.001),表明修复体的颜色稳定性在6个月的间隔优于12个月的间隔。在Omnichroma和Tetric-N-Ceram组中,与12个月间隔相比,6个月间隔的修复体保留更好,且该差异具有统计学意义(分别为P=0.025和0.014).
■全色色在颜色匹配方面的临床表现,颜色稳定性,保留率与纳米杂化复合材料相当,Tetric-N-Ceram。
UNASSIGNED: Strip crowns are the first treatment of choice for restoring anterior teeth affected with early childhood caries. However, shade matching of resin composites is still an issue. The broad color matching ability of a recently introduced single shade composite, Omnichroma eliminates the need for shade-matching procedure, reduces composite inventory, and minimizes chair-side time.
UNASSIGNED: The aim is to evaluate the color match, color stability, and retention of one shade universal composite resin, Omnichroma and nanohybrid resin composite, Tetric-N-Ceram.
UNASSIGNED: UNASSIGNED: UNASSIGNED: The
study design involves split-mouth randomized controlled
trial.
UNASSIGNED: UNASSIGNED: UNASSIGNED: The
study was conducted on 25 children aged 3-5 years with multi-surface caries lesions in primary maxillary anterior teeth. Teeth were allocated to two groups randomly: Group 1 - One shade universal composite, Omnichroma (n = 25), Group 2 - Nanohybrid composite, Tetric-N-Ceram (n = 25). After caries excavation and tooth preparation, teeth were restored with corresponding materials using strip crowns. Color match at baseline, color stability, and retention after 6- and 12-month follow-up were evaluated using the Modified United States Public Health Services criteria.
UNASSIGNED: UNASSIGNED: The Mann-Whitney U test and Wilcoxon signed-rank test were used to analyze the data.
UNASSIGNED: On comparison of Omnichroma and Tetric-N-Ceram groups, no statistically significant difference was observed in the color match at baseline (P = 0.716) as well as color stability (P = 0.575 at 6 months and 0.990 at 12 months) and retention (P = 0.153 at 6 months and 0.226 at 12 months) at both 6- and 12-month intervals. On intragroup comparison, the difference in the color stability at 6 and 12-month interval was statistically significant (P = 0.001) for both the groups, indicating that the color stability of restorations was better at 6-month interval compared to 12-month interval. In both Omnichroma and Tetric-N-Ceram groups, retention of restorations was better at 6-month interval compared to 12-month interval and this difference was statistically significant (P = 0.025 and 0.014, respectively).
UNASSIGNED: The clinical performance of Omnichroma in terms of color match, color stability, and retention was comparable to nanohybrid composite, Tetric-N-Ceram.