The aim of the present study was to compare sealing abilities of Resilon/Epiphany (R/E) with those of guttapercha and Kerr Pulp Canal Sealer EWT (GP/PCS). 50 single rooted teeth were randomly divided into 2 groups (n ...The aim of the present study was to compare sealing abilities of Resilon/Epiphany (R/E) with those of guttapercha and Kerr Pulp Canal Sealer EWT (GP/PCS). 50 single rooted teeth were randomly divided into 2 groups (n = 22) (R/E;GP/PCS), and 2 control groups (n = 3) (Positive, Negative). Fluid flow rate through the filled roots was measured using a fluid filtration device. The same specimens were immersed in a 2% Methylen Blue Solution. Roots were embedded in clear epoxy resin and cross sectionet at 1 mm intervals along the length of the root. Circumferential dye penetration was evaluated at 40× magnification. Fluid filtration of teeth obturated with the R/E system (0.085 [0.057, 0.113] μL·min-1), and dye penetration test showed no statistically significant difference compared to those obturated with GP/PCS (0.113 [0.057, 0.141] μL·min-1). Within the limits of the present study, there is no statistically significant difference between R/E and GP/PCS sealing abilities.展开更多
Background: The aim was to evaluate the nonsurgical Root Canal Treatment (nRCT) outcome, the restorative condition and the relationship between the coronal restoration quality and the outcome of teeth endodontic treat...Background: The aim was to evaluate the nonsurgical Root Canal Treatment (nRCT) outcome, the restorative condition and the relationship between the coronal restoration quality and the outcome of teeth endodontic treated by undergraduates at the University of Caxias do Sul School of Dentistry (UCS-SD), Brazil, between 2019 and 2021. Materials and Methods: Data from the endodontically treated cases were retrieved, and the patients were recalled for a follow-up appointment at the university. The endodontic diagnosis, radiographs, and the presence of definitive restorations were analyzed in the clinical records. During the follow-up appointment, endodontically treated teeth were classified as present or absent. The nRCT was classified as successful (complete or incomplete healing) or failure (uncertain or unsatisfactory healing). Coronal restoration was classified as absent or present. When it was present, it was classified as permanent or temporary, and its quality as adequate or inadequate restoration. The results were presented as percentages. Results: A total of 257 teeth were endodontically treated. The most prevalent diagnosis was Chronic Apical Periodontitis (33.33%) and the most commonly treated teeth were premolars (46.15%). A total of 52 (21%) treated teeth were clinically and radiographically reexamined. The success rate for the nRCT was 98.08%. About 61.54% of this sample had a definitive composite resin restoration. Conclusion: The nRCT success rate was high. Special attention should be given to the presence and quality of the definitive restoration. Clinical Implications: There was no statistically significant impact between the coronal restoration and the nRCT success (P > 0.05).展开更多
目的:探讨根管充填及修复材料(iRoot BP plus)和三氧化物凝聚体(MTA)根管修复材料用于牙髓血运重建术治疗年轻恒牙根尖感染的临床疗效。方法:选取医院口腔科收治的40例年轻恒牙根尖感染患者,按照随机数表法将其分为观察组和对照组,每组2...目的:探讨根管充填及修复材料(iRoot BP plus)和三氧化物凝聚体(MTA)根管修复材料用于牙髓血运重建术治疗年轻恒牙根尖感染的临床疗效。方法:选取医院口腔科收治的40例年轻恒牙根尖感染患者,按照随机数表法将其分为观察组和对照组,每组20例。所有患者均运用牙髓血运重建术进行治疗,其中观察组选用iRoot BP plus材料封闭根管上端,对照组选用MTA材料进行根管上端的封闭。比较两组患者的临床疗效、治疗周期、就诊次数、咀嚼恢复时间及根尖感染痊愈时间,比较两组患者的根管壁厚度、牙根长度以及患者对治疗的满意度。结果:牙髓血运重建术后,观察组治疗总有效率为95%,显著高于对照组的60%,差异有统计学意义(χ^(2)=8.326,P<0.05)。观察组与对照组相比,治疗周期、就诊次数、咀嚼恢复时间和根尖痊愈时间均显著缩短,差异具有统计学意义(t=12.492,t=10.424,t=6.524,t=11.907;P<0.05)。治疗后观察组患者的牙冠根长度显著长于对照组,根管壁厚度优于对照组,差异有统计学意义(t=8.742,t=7.048;P<0.05)。观察组患者咬合度、牙齿色泽、咀嚼能力及整体美观度4项满意度评分均显著高于对照组,差异有统计学意义(t=5.437,t=5.093,t=7.591,t=6.852;P<0.05)。结论:在运用牙髓血运重建术治疗年轻恒牙根尖感染时,iRoot BP plus材料较MTA材料更具有优势,可更有效提高患者的临床疗效和治疗满意度。展开更多
目的:体外评价新型根尖倒充填材料iRoot BP plus和iRoot FS的生物学性能。方法:(1)将牙根预备成长3 mm、根管直径1 mm的试样,分别于根管内填充iRoot BP plus、iRoot FS和三氧化矿物凝聚体(mineral trioxide aggregate,MTA)。将制备好的...目的:体外评价新型根尖倒充填材料iRoot BP plus和iRoot FS的生物学性能。方法:(1)将牙根预备成长3 mm、根管直径1 mm的试样,分别于根管内填充iRoot BP plus、iRoot FS和三氧化矿物凝聚体(mineral trioxide aggregate,MTA)。将制备好的试样置于模拟体液(simulated body fluid,SBF)中,用扫描电子显微镜观察暴露的材料表面矿物沉积情况,并通过X射线能谱对其表面形成的晶体进行元素分析,测定SBF的p H值随时间的变化。(2)将iRoot BP plus、iRoot FS和MTA制备成直径8 mm、高度2 mm的圆柱,制备DMEM浸提液,通过MTT实验观察材料对MG63细胞增殖活性的影响,并通过实时荧光定量PCR和碱性磷酸酶(alkaline phosphatase,ALP)染色分析材料对ALP基因及蛋白表达的影响。结果:(1)在SBF中浸泡24 h时,iRoot BP plus、iRoot FS和MTA表面均已有矿物沉积,14 d后有大量矿物沉积,钙∶磷比值分别为1.43、1.39和1.51;(2)iRoot BP plus、iRoot FS和MTA均可使SBF的p H升高,3周时分别为8.09±0.07、7.91±0.06和8.11±0.06;(3)以体积比为1∶5和1∶10稀释的iRoot BP plus、iRoot FS和MTA浸提液对MG63细胞的增殖无明显促进或抑制作用;(4)iRoot BP plus、iRoot FS和MTA组对MG63细胞ALP基因的表达均具有促进作用,ALP染色各组未见明显差异。结论:iRoot在模拟体液中可诱导矿物质沉积,促进MG63细胞的分化和矿化,具有良好的生物活性和促成骨作用。展开更多
文摘The aim of the present study was to compare sealing abilities of Resilon/Epiphany (R/E) with those of guttapercha and Kerr Pulp Canal Sealer EWT (GP/PCS). 50 single rooted teeth were randomly divided into 2 groups (n = 22) (R/E;GP/PCS), and 2 control groups (n = 3) (Positive, Negative). Fluid flow rate through the filled roots was measured using a fluid filtration device. The same specimens were immersed in a 2% Methylen Blue Solution. Roots were embedded in clear epoxy resin and cross sectionet at 1 mm intervals along the length of the root. Circumferential dye penetration was evaluated at 40× magnification. Fluid filtration of teeth obturated with the R/E system (0.085 [0.057, 0.113] μL·min-1), and dye penetration test showed no statistically significant difference compared to those obturated with GP/PCS (0.113 [0.057, 0.141] μL·min-1). Within the limits of the present study, there is no statistically significant difference between R/E and GP/PCS sealing abilities.
文摘Background: The aim was to evaluate the nonsurgical Root Canal Treatment (nRCT) outcome, the restorative condition and the relationship between the coronal restoration quality and the outcome of teeth endodontic treated by undergraduates at the University of Caxias do Sul School of Dentistry (UCS-SD), Brazil, between 2019 and 2021. Materials and Methods: Data from the endodontically treated cases were retrieved, and the patients were recalled for a follow-up appointment at the university. The endodontic diagnosis, radiographs, and the presence of definitive restorations were analyzed in the clinical records. During the follow-up appointment, endodontically treated teeth were classified as present or absent. The nRCT was classified as successful (complete or incomplete healing) or failure (uncertain or unsatisfactory healing). Coronal restoration was classified as absent or present. When it was present, it was classified as permanent or temporary, and its quality as adequate or inadequate restoration. The results were presented as percentages. Results: A total of 257 teeth were endodontically treated. The most prevalent diagnosis was Chronic Apical Periodontitis (33.33%) and the most commonly treated teeth were premolars (46.15%). A total of 52 (21%) treated teeth were clinically and radiographically reexamined. The success rate for the nRCT was 98.08%. About 61.54% of this sample had a definitive composite resin restoration. Conclusion: The nRCT success rate was high. Special attention should be given to the presence and quality of the definitive restoration. Clinical Implications: There was no statistically significant impact between the coronal restoration and the nRCT success (P > 0.05).
基金2022年度内蒙古自治区卫生健康科技计划(202202170)“iRoot BP plus和MTA用于牙髓血运重建术在治疗年轻恒牙根尖感染的临床疗效对比”。
文摘目的:探讨根管充填及修复材料(iRoot BP plus)和三氧化物凝聚体(MTA)根管修复材料用于牙髓血运重建术治疗年轻恒牙根尖感染的临床疗效。方法:选取医院口腔科收治的40例年轻恒牙根尖感染患者,按照随机数表法将其分为观察组和对照组,每组20例。所有患者均运用牙髓血运重建术进行治疗,其中观察组选用iRoot BP plus材料封闭根管上端,对照组选用MTA材料进行根管上端的封闭。比较两组患者的临床疗效、治疗周期、就诊次数、咀嚼恢复时间及根尖感染痊愈时间,比较两组患者的根管壁厚度、牙根长度以及患者对治疗的满意度。结果:牙髓血运重建术后,观察组治疗总有效率为95%,显著高于对照组的60%,差异有统计学意义(χ^(2)=8.326,P<0.05)。观察组与对照组相比,治疗周期、就诊次数、咀嚼恢复时间和根尖痊愈时间均显著缩短,差异具有统计学意义(t=12.492,t=10.424,t=6.524,t=11.907;P<0.05)。治疗后观察组患者的牙冠根长度显著长于对照组,根管壁厚度优于对照组,差异有统计学意义(t=8.742,t=7.048;P<0.05)。观察组患者咬合度、牙齿色泽、咀嚼能力及整体美观度4项满意度评分均显著高于对照组,差异有统计学意义(t=5.437,t=5.093,t=7.591,t=6.852;P<0.05)。结论:在运用牙髓血运重建术治疗年轻恒牙根尖感染时,iRoot BP plus材料较MTA材料更具有优势,可更有效提高患者的临床疗效和治疗满意度。
文摘目的:体外评价新型根尖倒充填材料iRoot BP plus和iRoot FS的生物学性能。方法:(1)将牙根预备成长3 mm、根管直径1 mm的试样,分别于根管内填充iRoot BP plus、iRoot FS和三氧化矿物凝聚体(mineral trioxide aggregate,MTA)。将制备好的试样置于模拟体液(simulated body fluid,SBF)中,用扫描电子显微镜观察暴露的材料表面矿物沉积情况,并通过X射线能谱对其表面形成的晶体进行元素分析,测定SBF的p H值随时间的变化。(2)将iRoot BP plus、iRoot FS和MTA制备成直径8 mm、高度2 mm的圆柱,制备DMEM浸提液,通过MTT实验观察材料对MG63细胞增殖活性的影响,并通过实时荧光定量PCR和碱性磷酸酶(alkaline phosphatase,ALP)染色分析材料对ALP基因及蛋白表达的影响。结果:(1)在SBF中浸泡24 h时,iRoot BP plus、iRoot FS和MTA表面均已有矿物沉积,14 d后有大量矿物沉积,钙∶磷比值分别为1.43、1.39和1.51;(2)iRoot BP plus、iRoot FS和MTA均可使SBF的p H升高,3周时分别为8.09±0.07、7.91±0.06和8.11±0.06;(3)以体积比为1∶5和1∶10稀释的iRoot BP plus、iRoot FS和MTA浸提液对MG63细胞的增殖无明显促进或抑制作用;(4)iRoot BP plus、iRoot FS和MTA组对MG63细胞ALP基因的表达均具有促进作用,ALP染色各组未见明显差异。结论:iRoot在模拟体液中可诱导矿物质沉积,促进MG63细胞的分化和矿化,具有良好的生物活性和促成骨作用。
