Krempels Jacqueline Victoria, Sturm Richard, Neumann Konrad, Schumacher Tamara, Schouten Christian, Faber Franz-Josef, Frankenberger Roland, Roggendorf Matthias Johannes
J Adhes Dent. 2025 Apr 30;27:75-80. doi: 10.3290/j.jad.c_1980.
To investigate the effect of tooth age on dentin adhesion of different luting systems to the root canal.
180 root canals of extracted teeth were divided into three age-specific groups (n = 60): young 20-35 (y), middle-aged 45-60 (m), and older 70-85 (o) years. Ten teeth of each age group were assigned to a luting system: Panavia 21 with ED Primer (P21, Kuraray); Core X Flow with Prime&Bond active and Self-Cure Activator (CXF, Dentsply Sirona); Multilink Automix with Multilink Primer (ML, Ivoclar Vivadent); Panavia SA Cement Plus (PSA, Kuraray); Smart Cem 2 (SM2, Dentsply Sirona); Speed CEM Plus (SCP, Ivoclar Vivadent). The root canals of decoronated teeth were instrumented with F360 (Komet) and BR7 (FKG) up to a working length of 8 mm (Ø0.6mm, taper 0.02) and filled with standardized steel spreaders and the selected material. The intracanal bond was determined by a pull-out test. The failure modes were categorized as an adhesive to dentin (AD), adhesive to spreader (AS), cohesive within the composite (C), and mixed (M). Statistical analysis was performed using non-parametric ANOVA, Tukey, and Chi-square test at a significance level of α ≤ 0.05.
The study showed significant differences for the various luting systems (ANOVA, P 0.05). PSA showed significant differences in bond strength to SM2, CXF, SCP, and ML, as did SM2 to P21 and SCP (Tukey, P 0.05). M (46%) occurred 53% in y and 70% in SCP.
No adhesive strategy can yet be recommended for tooth age. Clinically available luting systems show significant differences in their adhesion values.
研究牙龄对不同粘接系统与根管牙本质粘接效果的影响。
将180颗拔除牙的根管分为三个特定年龄组（每组n = 60）：年轻组20 - 35岁（y）、中年组45 - 60岁（m）和老年组70 - 85岁（o）。每个年龄组的10颗牙被分配到一种粘接系统：含ED底漆的Panavia 21（P21，可乐丽公司）；含Prime&Bond活性成分和自凝激活剂的Core X Flow（CXF，登士柏西诺德公司）；含Multilink底漆的Multilink Automix（ML，义获嘉伟瓦登特公司）；Panavia SA Cement Plus（PSA，可乐丽公司）；Smart Cem 2（SM2，登士柏西诺德公司）；Speed CEM Plus（SCP，义获嘉伟瓦登特公司）。对去冠牙的根管使用F360（Komet公司）和BR7（FKG公司）器械预备至工作长度8 mm（直径0.6mm，锥度0.02），并用标准化的钢质充填器和所选材料进行充填。通过拔出试验测定根管内的粘接强度。将失败模式分为牙本质粘接失败（AD）、充填器粘接失败（AS）、复合树脂内聚破坏（C）和混合破坏（M）。采用非参数方差分析、Tukey检验和卡方检验进行统计学分析，显著性水平α≤0.05。
研究表明不同粘接系统存在显著差异（方差分析，P < 0.05）。PSA与SM2、CXF、SCP和ML的粘接强度存在显著差异，SM2与P21以及SCP之间也存在显著差异（Tukey检验，P < 0.05）。混合破坏（M）占46%，在年轻组中占53%，在SCP组中占70%。
对于牙龄，目前尚无推荐的粘接策略。临床上现有的粘接系统在粘接值上存在显著差异。
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