The effect of different implant-abutment types and heights on screw loosening in cases with increased crown height space

IF 1.7 Q3 DENTISTRY, ORAL SURGERY & MEDICINE

Clinical and Experimental Dental Research Pub Date : 2024-06-16 DOI:10.1002/cre2.894

Amirreza Hendi, Sobhan Mirzaee, Mehran Falahchai

{"title":"The effect of different implant-abutment types and heights on screw loosening in cases with increased crown height space","authors":"Amirreza Hendi, Sobhan Mirzaee, Mehran Falahchai","doi":"10.1002/cre2.894","DOIUrl":null,"url":null,"abstract":"<div>\n \n \n <section>\n \n <h3> Objectives</h3>\n \n <p>The stability of the abutment screw is pivotal for successful implant-supported restorations, yet screw loosening remains a common complication, leading to compromised function and potential implant failure. This study aims to evaluate the effect of different implant-abutment types and heights on screw loosening in cases with increased crown height space (CHS).</p>\n </section>\n \n <section>\n \n <h3> Materials and Methods</h3>\n \n <p>In this in vitro study, a total of 64 abutments in eight distinct groups based on their type and height were evaluated. These groups included stock, cast, and milled abutments with heights of 4 mm (groups S4, C4, and M4), 7 mm (groups S7, C7, and M7), and 10 mm (groups C10 and M10). Removal torque loss (RTL) was assessed both before and after subjecting the abutments to dynamic cyclic loading. Additionally, the differences between initial RTL and RTL following cyclic loading were analyzed for each group (<i>p</i> < .05).</p>\n </section>\n \n <section>\n \n <h3> Results</h3>\n \n <p>The C10 group demonstrated the highest RTL, whereas the S4 group exhibited the lowest initial RTL percentage (<i>p</i> < .05). Furthermore, the study established significant variations in RTL percentages and the discrepancies between initial and postcyclic loading RTL across different abutment groups (<i>p</i> < .05). Additionally, both abutment types and heights were found to significantly influence the RTL percentage (<i>p</i> < .05).</p>\n </section>\n \n <section>\n \n <h3> Conclusion</h3>\n \n <p>The type and height of the implant abutment affected screw loosening, and in an increased CHS of 12 mm, using a stock abutment with a postheight of 4 mm can be effective in minimizing screw loosening.</p>\n </section>\n </div>","PeriodicalId":10203,"journal":{"name":"Clinical and Experimental Dental Research","volume":"10 3","pages":""},"PeriodicalIF":1.7000,"publicationDate":"2024-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11180708/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Clinical and Experimental Dental Research","FirstCategoryId":"1085","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/cre2.894","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"DENTISTRY, ORAL SURGERY & MEDICINE","Score":null,"Total":0}

引用次数: 0

Abstract

Objectives

The stability of the abutment screw is pivotal for successful implant-supported restorations, yet screw loosening remains a common complication, leading to compromised function and potential implant failure. This study aims to evaluate the effect of different implant-abutment types and heights on screw loosening in cases with increased crown height space (CHS).

Materials and Methods

In this in vitro study, a total of 64 abutments in eight distinct groups based on their type and height were evaluated. These groups included stock, cast, and milled abutments with heights of 4 mm (groups S4, C4, and M4), 7 mm (groups S7, C7, and M7), and 10 mm (groups C10 and M10). Removal torque loss (RTL) was assessed both before and after subjecting the abutments to dynamic cyclic loading. Additionally, the differences between initial RTL and RTL following cyclic loading were analyzed for each group (p < .05).

Results

The C10 group demonstrated the highest RTL, whereas the S4 group exhibited the lowest initial RTL percentage (p < .05). Furthermore, the study established significant variations in RTL percentages and the discrepancies between initial and postcyclic loading RTL across different abutment groups (p < .05). Additionally, both abutment types and heights were found to significantly influence the RTL percentage (p < .05).

Conclusion

The type and height of the implant abutment affected screw loosening, and in an increased CHS of 12 mm, using a stock abutment with a postheight of 4 mm can be effective in minimizing screw loosening.

Abstract Image

查看原文本刊更多论文

在牙冠高度空间增大的情况下，不同的种植体基台类型和高度对螺钉松动的影响。

目的：基台螺丝的稳定性是种植体支持修复成功的关键，但螺丝松动仍然是常见的并发症，会导致功能受损和潜在的种植体失败。本研究旨在评估在牙冠高度空间（CHS）增大的情况下，不同种植体基台类型和高度对螺丝松动的影响：在这项体外研究中，根据基台的类型和高度，共对 8 个不同组别中的 64 个基台进行了评估。这些组包括高度为 4 毫米（S4、C4 和 M4 组）、7 毫米（S7、C7 和 M7 组）和 10 毫米（C10 和 M10 组）的库存基台、铸造基台和研磨基台。在基台承受动态循环加载之前和之后，都对移除扭矩损失（RTL）进行了评估。此外，还分析了各组初始 RTL 与循环加载后 RTL 之间的差异（p 结果：C10 组的 RTL 最高，而 S4 组的初始 RTL 百分比最低（p 结论：C10 组和 S4 组的初始 RTL 百分比最高，而 S4 组的初始 RTL 百分比最低：种植体基台的类型和高度对螺钉松动有影响，在 CHS 增加到 12 mm 的情况下，使用后高度为 4 mm 的库存基台可以有效地减少螺钉松动。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Clinical and Experimental Dental Research DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

3.30

自引率

5.60%

发文量

165

审稿时长

26 weeks

期刊介绍： Clinical and Experimental Dental Research aims to provide open access peer-reviewed publications of high scientific quality representing original clinical, diagnostic or experimental work within all disciplines and fields of oral medicine and dentistry. The scope of Clinical and Experimental Dental Research comprises original research material on the anatomy, physiology and pathology of oro-facial, oro-pharyngeal and maxillofacial tissues, and functions and dysfunctions within the stomatognathic system, and the epidemiology, aetiology, prevention, diagnosis, prognosis and therapy of diseases and conditions that have an effect on the homeostasis of the mouth, jaws, and closely associated structures, as well as the healing and regeneration and the clinical aspects of replacement of hard and soft tissues with biomaterials, and the rehabilitation of stomatognathic functions. Studies that bring new knowledge on how to advance health on the individual or public health levels, including interactions between oral and general health and ill-health are welcome.