Department of Endodontics, Faculty of Dentistry, Gazi University, Emek mah. 1. sok No: 4, 06510, Ankara, Turkey.
BYS Group, Gazi Üniversitesi Gölbaşı Yerleşkesi Tekno Plaza Binası A Blok, Ankara, Turkey.
Clin Oral Investig. 2019 May;23(5):2097-2102. doi: 10.1007/s00784-018-2629-1. Epub 2018 Sep 27.
The aim of this study was to evaluate the tooth crown discoloration induced by commonly used and new-generation endodontic sealers after 1 month and 1 and 3 years.
The crowns of 60 extracted incisors were cut and the pulp chambers were cleaned. The specimens were divided randomly into four groups (n = 15 each). Pulp chambers were filled with Pulpispad in group 1, AH26 in group 2, MTA Fillapex in group 3, and EndoREZ in group 4. Specimen color was measured with a spectrophotometer before and after sealer placement. Commission International de L'Eclairage's (CIE's) lighteness (L*), red-green (a*), yellow-blue (b*) color system values and color difference (ΔE) were recorded at 1 month and 1 and 3 years. Data were analyzed using repeated-measures analysis of variance and Tukey's honestly significant difference test (α = 0.05).
All sealers caused discoloration. At 1 month, ΔE values were significantly higher in groups 1 and 2 than in groups 3 and 4 (p < 0.05). At 1 year, ΔE values were significantly lower in group 3 than in the other groups (p < 0.05). At 3 years, ΔE values were significantly higher in group 1 than in the other groups (p < 0.05).
All tested sealers induced varying chromatic alterations. After root canal obturation, thorough debridement of sealers from the pulp chamber is essential for the prevention of sealer-induced discoloration.
Tooth discoloration induced by endodontic materials is a problem for clinicians and patients and may impair the esthetic of endodontically treated teeth. Therefore, evaluation of long-term discoloration effects commonly used, and new-generation endodontic sealers were purposed in this study.
本研究旨在评估常用和新一代根管封闭剂在 1 个月、1 年和 3 年后引起的牙冠变色情况。
将 60 颗离体切牙的牙冠部分切割，并清理牙髓腔。将样本随机分为四组（每组 15 个）。第 1 组使用 Pulpispad、第 2 组使用 AH26、第 3 组使用 MTA Fillapex、第 4 组使用 EndoREZ 进行根管封闭。在放置封闭剂前后使用分光光度计测量样本颜色。记录 Commission International de L'Eclairage（CIE）的明度（L*）、红-绿（a*）、黄-蓝（b*）颜色系统值和色差（ΔE），并在 1 个月、1 年和 3 年后进行记录。使用重复测量方差分析和 Tukey 的Honestly Significant Difference 检验（α=0.05）进行数据分析。
所有封闭剂均导致牙冠变色。在 1 个月时，第 1 组和第 2 组的 ΔE 值明显高于第 3 组和第 4 组（p<0.05）。在 1 年时，第 3 组的 ΔE 值明显低于其他组（p<0.05）。在 3 年时，第 1 组的 ΔE 值明显高于其他组（p<0.05）。
所有测试的封闭剂均引起不同程度的色度变化。根管充填后，彻底清除牙髓腔内的封闭剂对于预防封闭剂引起的变色至关重要。
根管材料引起的牙齿变色是临床医生和患者面临的一个问题，可能会影响根管治疗后牙齿的美观。因此，本研究旨在评估常用和新一代根管封闭剂的长期变色效果。
