{"title":"修复体设计对循环加载后种植体支撑牙冠去除扭矩损失的影响","authors":"Suppanut Jongsiri, Mansuang Arksornnukit, Woraporn Homsiang, Krid Kamonkhantikul","doi":"10.5005/jp-journals-10024-3604","DOIUrl":null,"url":null,"abstract":"<p><strong>Aim: </strong>To compare the removal torque loss (RTL) percentage of screw-retained, cement-retained, and combined screw- and cement-retained implant-supported crowns after cyclic loading and measure the impact of cyclic loading on removal torque.</p><p><strong>Materials and methods: </strong>Thirty-two dental implants (4.0 × 10 mm) in resin blocks and abutments were divided into four groups (<i>n</i> = 8) based on restoration design: combined screw- and cement-retained group (SC), two cement-retained groups: cemented with adhesive resin cement (AR) (Panavia V5) or provisional cement (PR) (RelyX Temp NE), and screw-retained one-piece titanium group (TI). Removal torques were measured in Newton-centimeter (Ncm) before and after 500,000-cycle cyclic loading with forces ranging from 20 to 200 N at 15 Hz. The RTL percentage in each group was calculated. The paired <i>t</i>-test was used to detect the difference between pre-loading (RT1) and post-loading removal torque (RT2) in each group and 1-way ANOVA was used to detect the difference of RTL percentage between groups.</p><p><strong>Results: </strong>The post-loading removal torques in all groups were significantly lower than their pre-loading removal torques (<i>p</i> < 0.001). The 1-way ANOVA test found no significant difference in the RTL% between the study groups. The PR group exhibited the lower RTL% (30.74 ± 7.3%), followed by the TI (30.78 ± 5.6%), AR (32.12 ± 2.5%), and SC (35.71 ± 5.1%) groups.</p><p><strong>Conclusion: </strong>Combined screw- and cement-retained restorations exhibited similar RTL compared with other restoration designs, and cyclic loading significantly affected the removal torque.</p><p><strong>Clinical significance: </strong>Combined screw- and cement-retained restorations can be utilized in single-tooth situations, offering a comparable impact on screw joint stability while providing benefit of retrievability. Cyclic loading significantly influences joint stability, periodic checkup for screw loosening is recommended. How to cite this article: Jongsiri S, Arksornnukit M, Homsiang W, <i>et al</i>. Effect of Restoration Design on the Removal Torque Loss of Implant-supported Crowns after Cyclic Loading. J Contemp Dent Pract 2023;24(12):951-956.</p>","PeriodicalId":35792,"journal":{"name":"Journal of Contemporary Dental Practice","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of Restoration Design on the Removal Torque Loss of Implant-supported Crowns after Cyclic Loading.\",\"authors\":\"Suppanut Jongsiri, Mansuang Arksornnukit, Woraporn Homsiang, Krid Kamonkhantikul\",\"doi\":\"10.5005/jp-journals-10024-3604\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Aim: </strong>To compare the removal torque loss (RTL) percentage of screw-retained, cement-retained, and combined screw- and cement-retained implant-supported crowns after cyclic loading and measure the impact of cyclic loading on removal torque.</p><p><strong>Materials and methods: </strong>Thirty-two dental implants (4.0 × 10 mm) in resin blocks and abutments were divided into four groups (<i>n</i> = 8) based on restoration design: combined screw- and cement-retained group (SC), two cement-retained groups: cemented with adhesive resin cement (AR) (Panavia V5) or provisional cement (PR) (RelyX Temp NE), and screw-retained one-piece titanium group (TI). Removal torques were measured in Newton-centimeter (Ncm) before and after 500,000-cycle cyclic loading with forces ranging from 20 to 200 N at 15 Hz. The RTL percentage in each group was calculated. The paired <i>t</i>-test was used to detect the difference between pre-loading (RT1) and post-loading removal torque (RT2) in each group and 1-way ANOVA was used to detect the difference of RTL percentage between groups.</p><p><strong>Results: </strong>The post-loading removal torques in all groups were significantly lower than their pre-loading removal torques (<i>p</i> < 0.001). The 1-way ANOVA test found no significant difference in the RTL% between the study groups. The PR group exhibited the lower RTL% (30.74 ± 7.3%), followed by the TI (30.78 ± 5.6%), AR (32.12 ± 2.5%), and SC (35.71 ± 5.1%) groups.</p><p><strong>Conclusion: </strong>Combined screw- and cement-retained restorations exhibited similar RTL compared with other restoration designs, and cyclic loading significantly affected the removal torque.</p><p><strong>Clinical significance: </strong>Combined screw- and cement-retained restorations can be utilized in single-tooth situations, offering a comparable impact on screw joint stability while providing benefit of retrievability. Cyclic loading significantly influences joint stability, periodic checkup for screw loosening is recommended. How to cite this article: Jongsiri S, Arksornnukit M, Homsiang W, <i>et al</i>. Effect of Restoration Design on the Removal Torque Loss of Implant-supported Crowns after Cyclic Loading. J Contemp Dent Pract 2023;24(12):951-956.</p>\",\"PeriodicalId\":35792,\"journal\":{\"name\":\"Journal of Contemporary Dental Practice\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Contemporary Dental Practice\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.5005/jp-journals-10024-3604\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"Dentistry\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Contemporary Dental Practice","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5005/jp-journals-10024-3604","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Dentistry","Score":null,"Total":0}
引用次数: 0
摘要
目的：比较螺钉固位、水泥固位以及螺钉和水泥联合固位种植体支撑冠在循环加载后的去除扭矩损失（RTL）百分比，并测量循环加载对去除扭矩的影响：根据修复设计将32颗牙科种植体（4.0 × 10 mm）的树脂块和基台分为四组（n = 8）：螺钉和骨水泥固位联合组（SC）、两组骨水泥固位组：用粘接树脂骨水泥（AR）（Panavia V5）或临时骨水泥（PR）（RelyX Temp NE）固位，以及螺钉固位一体式钛合金组（TI）。在以 15 Hz 频率加载 20 到 200 牛顿力的 500,000 个循环周期之前和之后，以牛顿-厘米（Ncm）为单位测量拔除扭矩。计算各组的 RTL 百分比。采用配对 t 检验检测各组加载前（RT1）和加载后移除扭矩（RT2）之间的差异，采用单因素方差分析检测各组之间 RTL 百分比的差异：结果：各组的加载后移除扭矩均明显低于加载前移除扭矩（P < 0.001）。单因素方差分析检验发现，研究组间的 RTL% 无明显差异。PR 组的 RTL% 较低（30.74 ± 7.3%），其次是 TI 组（30.78 ± 5.6%）、AR 组（32.12 ± 2.5%）和 SC 组（35.71 ± 5.1%）：临床意义：螺钉和骨水泥固位的组合修复体可用于单牙情况，对螺钉关节稳定性的影响相当，同时还具有可取性的优点。周期性负荷对关节稳定性有很大影响，建议定期检查螺钉是否松动。本文引用方式：Jongsiri S, Arksornnukit M, Homsiang W, et al. Restoration Design on the Removal Torque Loss of Implant-supported Crowns after Cyclic Loading.J Contemp Dent Pract 2023;24(12):951-956.
Effect of Restoration Design on the Removal Torque Loss of Implant-supported Crowns after Cyclic Loading.
Aim: To compare the removal torque loss (RTL) percentage of screw-retained, cement-retained, and combined screw- and cement-retained implant-supported crowns after cyclic loading and measure the impact of cyclic loading on removal torque.
Materials and methods: Thirty-two dental implants (4.0 × 10 mm) in resin blocks and abutments were divided into four groups (n = 8) based on restoration design: combined screw- and cement-retained group (SC), two cement-retained groups: cemented with adhesive resin cement (AR) (Panavia V5) or provisional cement (PR) (RelyX Temp NE), and screw-retained one-piece titanium group (TI). Removal torques were measured in Newton-centimeter (Ncm) before and after 500,000-cycle cyclic loading with forces ranging from 20 to 200 N at 15 Hz. The RTL percentage in each group was calculated. The paired t-test was used to detect the difference between pre-loading (RT1) and post-loading removal torque (RT2) in each group and 1-way ANOVA was used to detect the difference of RTL percentage between groups.
Results: The post-loading removal torques in all groups were significantly lower than their pre-loading removal torques (p < 0.001). The 1-way ANOVA test found no significant difference in the RTL% between the study groups. The PR group exhibited the lower RTL% (30.74 ± 7.3%), followed by the TI (30.78 ± 5.6%), AR (32.12 ± 2.5%), and SC (35.71 ± 5.1%) groups.
Conclusion: Combined screw- and cement-retained restorations exhibited similar RTL compared with other restoration designs, and cyclic loading significantly affected the removal torque.
Clinical significance: Combined screw- and cement-retained restorations can be utilized in single-tooth situations, offering a comparable impact on screw joint stability while providing benefit of retrievability. Cyclic loading significantly influences joint stability, periodic checkup for screw loosening is recommended. How to cite this article: Jongsiri S, Arksornnukit M, Homsiang W, et al. Effect of Restoration Design on the Removal Torque Loss of Implant-supported Crowns after Cyclic Loading. J Contemp Dent Pract 2023;24(12):951-956.
期刊介绍：
The Journal of Contemporary Dental Practice (JCDP), is a peer-reviewed, open access MEDLINE indexed journal. The journal’s full text is available online at http://www.thejcdp.com. The journal allows free access (open access) to its contents. Articles with clinical relevance will be given preference for publication. The Journal publishes original research papers, review articles, rare and novel case reports, and clinical techniques. Manuscripts are invited from all specialties of dentistry i.e., conservative dentistry and endodontics, dentofacial orthopedics and orthodontics, oral medicine and radiology, oral pathology, oral surgery, orodental diseases, pediatric dentistry, implantology, periodontics, clinical aspects of public health dentistry, and prosthodontics.
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