Abstract：
The present systematic review was executed to evaluate the stress shielding effect of PEEK and its composite dental implants as compared to other implant (titanium and zirconia) materials in peri-implant bone.
The comprehensive online literature search was conducted on PubMed, Google Scholar, and Web of Science from January 2011 to January 2023. A total of 43 in vitro studies were identified related to the raised question. In all, 34 studies were excluded as they included in vitro studies focusing on stress distribution in prosthesis framework, abutments, crown, and on biological properties such as cell adhesion, etc. Only eight studies after full-text screening were included in the present systematic review.
The data extracted from included studies showed that PEEK and its composite materials, have a less stress shielding effect due to their low modulus of elasticity resulting in higher stress concentration and strain in the peri-implant bone as compared to titanium and zirconia implant materials.
The PEEK and its composites can be used as an alternative material in the esthetic region and in those who have an allergy to metal implants. However, due to the low elastic modulus of PEEK, a homogenous stress distribution is not observed along the entire length of the implant. Further studies are required to improve the composition of PEEK material so that a homogenous reduction of stress shielding effect along the whole length of a dental implant can be achieved.
The comprehensive online literature search was conducted on PubMed, Google Scholar, and Web of Science from January 2011 to January 2023. A total of 43 in vitro studies were identified related to the raised question. In all, 34 studies were excluded as they included in vitro studies focusing on stress distribution in prosthesis framework, abutments, crown, and on biological properties such as cell adhesion, etc. Only eight studies after full-text screening were included in the present systematic review.
The data extracted from included studies showed that PEEK and its composite materials, have a less stress shielding effect due to their low modulus of elasticity resulting in higher stress concentration and strain in the peri-implant bone as compared to titanium and zirconia implant materials.
The PEEK and its composites can be used as an alternative material in the esthetic region and in those who have an allergy to metal implants. However, due to the low elastic modulus of PEEK, a homogenous stress distribution is not observed along the entire length of the implant. Further studies are required to improve the composition of PEEK material so that a homogenous reduction of stress shielding effect along the whole length of a dental implant can be achieved.
摘要：
目的：本系统综述旨在评估PEEK及其复合牙种植体与其他种植体（钛和氧化锆）材料在种植体周围骨的应力屏蔽作用。
方法：在PubMed上进行了全面的在线文献检索，谷歌学者，和WebofScience从2011年1月到2023年1月。确定了与提出的问题有关的总共43项体外研究。总之,34项研究被排除在外，因为它们包括关注假体框架中应力分布的体外研究，基台,皇冠,以及细胞粘附等生物学特性，等。本系统综述仅包括8项全文筛选后的研究。
结果：从纳入的研究中提取的数据表明，PEEK及其复合材料，与钛和氧化锆植入物材料相比,由于其低弹性模量导致植入物周围骨中更高的应力集中和应变,因此具有较小的应力屏蔽效应。
结论：PEEK及其复合材料可用作美学区域和对金属植入物过敏的患者的替代材料。然而,由于PEEK的弹性模量低，沿着植入物的整个长度没有观察到均匀的应力分布。需要进一步的研究来改善PEEK材料的组成,使得可以实现沿着牙科植入物的整个长度的应力屏蔽效应的均匀降低。
方法：在PubMed上进行了全面的在线文献检索，谷歌学者，和WebofScience从2011年1月到2023年1月。确定了与提出的问题有关的总共43项体外研究。总之,34项研究被排除在外，因为它们包括关注假体框架中应力分布的体外研究，基台,皇冠,以及细胞粘附等生物学特性，等。本系统综述仅包括8项全文筛选后的研究。
结果：从纳入的研究中提取的数据表明，PEEK及其复合材料，与钛和氧化锆植入物材料相比,由于其低弹性模量导致植入物周围骨中更高的应力集中和应变,因此具有较小的应力屏蔽效应。
结论：PEEK及其复合材料可用作美学区域和对金属植入物过敏的患者的替代材料。然而,由于PEEK的弹性模量低，沿着植入物的整个长度没有观察到均匀的应力分布。需要进一步的研究来改善PEEK材料的组成,使得可以实现沿着牙科植入物的整个长度的应力屏蔽效应的均匀降低。
