Abstract
This study is aimed to review the applications of Polyether Ether Ketone (PEEK) in dentistry. The increased demand for aesthetics, legislation in some developed countries, few drawbacks with existing materials and clinicians shifting their paradigms towards metal free restorations led space for the metal-free restorations in today’s dental practice. An electronic literature search was conducted through Medline via PubMed, Wiley Online library, EBSCOhost, Science Direct, as well as the Google Scholar between January 2010 and March 2018 using the keywords: PEEK, modified PEEK, PEEK and Dental, advantages of PEEK, applications of PEEK in dentistry and PEEK Implants. A total of 103 articles were found in the literature search and out of these, 18 were not related to our study and hence were excluded. Finally, 85 articles were found to be relevant. PEEK has been explained for a number of applications in dental practice. The literature showed that the PEEK material has superior mechanical properties with different uses in various specialties of dentistry.
Highlights
The long term success of dental implant depends mainly on minimizing the amount of marginal bone loss on functional loading
The data showed that the distribution of articles on the properties of Polyether Ether Ketone (PEEK) was 17 (20%), implantrelated articles were 26 (30.6%) whereas the maximum number of articles related to different prosthodontic applications were 33 (38.9%) and 9 (10.6%) articles found on the usage of PEEK in other specialties of dentistry which includes orthodontics, oral and maxillofacial surgery, and endodontics
The 33 articles which belong to prosthodontics,18 of them are related to different Crown systems (54.5%), 6 are removable partial dentures (18%), 5 are fixed partial dentures (15%), and 4 were in relation to maxillofacial prosthodontics (12%) (Table 1)
Summary
The long term success of dental implant depends mainly on minimizing the amount of marginal bone loss on functional loading. Due to the gradient difference in the elastic modulus of a titanium implant to its surrounding bone, it may cause stress in the implant-bone interface during load transfer resulting in peri-implant bone loss [2]. This phenomenon is referred to as stress shielding, and it may be one of the important causes of long term failure of dental implants. PEEK is the latest inventory of dentistry and is claimed to have better properties in parallel with existing materials Keeping all these in mind, in this review, we aimed to focus exclusively on the mechanical properties, advantages, modifications of the PEEK material and different uses of PEEK in various specialties of dentistry
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