Allegra Comba, Andrea Baldi, Elvinas Juzikis, Edoardo Alberto Vergano, Damiano Pasqualini, Mario Alovisi, Elio Berutti, Nicola Scotti
{"title":"固化延迟会影响纤维桩与自粘水泥的粘结强度吗？","authors":"Allegra Comba, Andrea Baldi, Elvinas Juzikis, Edoardo Alberto Vergano, Damiano Pasqualini, Mario Alovisi, Elio Berutti, Nicola Scotti","doi":"10.11607/ijp.7486","DOIUrl":null,"url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the effect of three different curing protocols based on different ratios of self-curing and light-curing periods on the bond strength and nanoleakage of fiber posts luted with dual-curing self-adhesive cements.</p><p><strong>Materials and methods: </strong>A total of 48 single-root teeth were endodontically treated and obturated, and an 8-mm post space was prepared with dedicated drills. Specimens were randomly divided into two groups according to the self-adhesive cement employed: group 1 (G1) = PANAVIA SA Plus (Kuraray Noritake), and group 2 (G2) = Bifix SE (VOCO). The specimens were further divided into three subgroups (n = 8 each) according to the light-curing protocol applied: no light-curing (SG1), 20 seconds of light-curing 20 seconds after cement injection (SG2), and 20 seconds of light-curing 120 seconds after cement injection (SG3). Slices of 1-mm thickness were prepared for the pushout test and nanoleakage analyses of the coronal and apical regions after 24 hours of storage in artificial saliva. Results were statistically analyzed with three-way ANOVA and Tukey post hoc tests. Statistical significance was set for P < .05.</p><p><strong>Results: </strong>Three-way ANOVA analysis showed that the factors of cement (P = .02) and curing protocol (P < .001) had a significant influence on bond strength. Tukey post hoc test reported that light-curing 120 seconds after injection showed higher bond strength compared to both no light-curing and photoactivation after 20 seconds.</p><p><strong>Conclusion: </strong>To achieve the highest bond strength with self-adhesive cements, photoactivation with a 120-second delay after mixing is required. There is no difference between light-curing immediately and light-curing 20 seconds after mixing.</p>","PeriodicalId":50292,"journal":{"name":"International Journal of Prosthodontics","volume":" ","pages":"595-602"},"PeriodicalIF":2.1000,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Does Curing Delay Affect the Bond Strength of Fiber Post with Self-Adhesive Cements?\",\"authors\":\"Allegra Comba, Andrea Baldi, Elvinas Juzikis, Edoardo Alberto Vergano, Damiano Pasqualini, Mario Alovisi, Elio Berutti, Nicola Scotti\",\"doi\":\"10.11607/ijp.7486\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Purpose: </strong>To evaluate the effect of three different curing protocols based on different ratios of self-curing and light-curing periods on the bond strength and nanoleakage of fiber posts luted with dual-curing self-adhesive cements.</p><p><strong>Materials and methods: </strong>A total of 48 single-root teeth were endodontically treated and obturated, and an 8-mm post space was prepared with dedicated drills. 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Tukey post hoc test reported that light-curing 120 seconds after injection showed higher bond strength compared to both no light-curing and photoactivation after 20 seconds.</p><p><strong>Conclusion: </strong>To achieve the highest bond strength with self-adhesive cements, photoactivation with a 120-second delay after mixing is required. 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引用次数: 0
摘要
目的：评估基于自固化和光固化时间的不同比例的三种不同固化方案对用双固化自粘水泥稀释的纤维桩的粘合强度和纳米泄漏的影响。材料和方法：共对48颗单根牙进行了牙髓治疗和充填，并用专用钻头制备了8mm的桩间距。根据使用的自粘水泥，将样品随机分为两组：第1组（G1）=PANAVIA SA Plus（Kuraray Noritake），第2组（G2）=Bifix SE（VOCO）。根据所应用的光固化方案，将试样进一步分为三个亚组（每组n=8）：无光固化（SG1）、水泥注入后20秒的光固化（SG 2）和水泥注入后120秒的光养护（SG3）。在人工唾液中储存24小时后，制备1mm厚度的切片用于冠状和根尖区域的推出测试和纳米泄漏分析。结果采用三元方差分析和Tukey事后检验进行统计学分析。结果：三元方差分析显示，水泥因素（P=0.02）和固化方案因素（P<.001）对粘结强度有显著影响。Tukey post-hoc测试报告称，与20秒后无光固化和光活化相比，注射后120秒的光固化显示出更高的结合强度。结论：为了实现自粘水泥的最高粘结强度，需要在混合后延迟120秒的光活化。立即光固化和混合后20秒的光固化之间没有区别。
Does Curing Delay Affect the Bond Strength of Fiber Post with Self-Adhesive Cements?
Purpose: To evaluate the effect of three different curing protocols based on different ratios of self-curing and light-curing periods on the bond strength and nanoleakage of fiber posts luted with dual-curing self-adhesive cements.
Materials and methods: A total of 48 single-root teeth were endodontically treated and obturated, and an 8-mm post space was prepared with dedicated drills. Specimens were randomly divided into two groups according to the self-adhesive cement employed: group 1 (G1) = PANAVIA SA Plus (Kuraray Noritake), and group 2 (G2) = Bifix SE (VOCO). The specimens were further divided into three subgroups (n = 8 each) according to the light-curing protocol applied: no light-curing (SG1), 20 seconds of light-curing 20 seconds after cement injection (SG2), and 20 seconds of light-curing 120 seconds after cement injection (SG3). Slices of 1-mm thickness were prepared for the pushout test and nanoleakage analyses of the coronal and apical regions after 24 hours of storage in artificial saliva. Results were statistically analyzed with three-way ANOVA and Tukey post hoc tests. Statistical significance was set for P < .05.
Results: Three-way ANOVA analysis showed that the factors of cement (P = .02) and curing protocol (P < .001) had a significant influence on bond strength. Tukey post hoc test reported that light-curing 120 seconds after injection showed higher bond strength compared to both no light-curing and photoactivation after 20 seconds.
Conclusion: To achieve the highest bond strength with self-adhesive cements, photoactivation with a 120-second delay after mixing is required. There is no difference between light-curing immediately and light-curing 20 seconds after mixing.
期刊介绍：
Official Journal of the European Association for Osseointegration (EAO), the International College of Prosthodontists (ICP), the German Society of Prosthodontics and Dental Materials Science (DGPro), and the Italian Academy of Prosthetic Dentistry (AIOP)
Prosthodontics demands a clinical research emphasis on patient- and dentist-mediated concerns in the management of oral rehabilitation needs. It is about making and implementing the best clinical decisions to enhance patients'' quality of life via applied biologic architecture - a role that far exceeds that of traditional prosthetic dentistry, with its emphasis on materials and techniques. The International Journal of Prosthodontics is dedicated to exploring and developing this conceptual shift in the role of today''s prosthodontist, clinician, and educator alike. The editorial board is composed of a distinguished team of leading international scholars.
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