Soft tissue response to dental implant closure caps made of either polyetheretherketone (PEEK) or titanium.

Caballé Serrano, Jordi; Chappuis, Vivianne; Monje, Alberto; Buser, Daniel Albin; Bosshardt, Dieter (2019). Soft tissue response to dental implant closure caps made of either polyetheretherketone (PEEK) or titanium. Clinical oral implants research, 30(8), pp. 808-816. Wiley-Blackwell 10.1111/clr.13487

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OBJECTIVE Polyetheretherketone (PEEK) is a popular synthetic thermoplastic polymer for medical applications, but its clinical use suffers from several limitations. Therefore, the aim was to compare the soft tissue response to dental implant closure caps made of PEEK or titanium as evaluated by the occurrence of multinucleated giant cells (MNGCs). MATERIAL AND METHODS Forty-two implants were placed in the maxilla of seven miniature pigs. While commercially pure titanium (Ti) implants had a Ti closure cap, ceramic implants made of either zirconia (Zr) or alumina-toughened zirconia (Zr + Al) received a PEEK closure cap. Histomorphometry was performed to evaluate the number of small and large MNGCs being in contact with the PEEK or the Ti in different compartments of the implant systems. RESULTS No histological signs of inflammation were noticed, and MNGCs were observed on both PEEK and Ti closure caps and on all three implant types. Significantly higher numbers of MNGCs were found on closure caps made of PEEK than on closure caps made of Ti on the external closure cap surface facing both soft (p = 0.0008 for PEEK on Zr and p = 0.0016 for PEEK on Zr + Al) and hard tissues (p = 0.016 for PEEK on Zr and p = 0.003 for PEEK on Zr + Al) as well as in the internal closure cap surface (p = 0.014 for PEEK on Zr and p = 0.0088 for PEEK on Zr + Al). No statistically significant differences in the number of MNGCs were observed on the three implant types. CONCLUSIONS Significantly more MNGCs were in contact with PEEK than with Ti closure caps.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > School of Dental Medicine > School of Dental Medicine, Oral Surgery Research
04 Faculty of Medicine > School of Dental Medicine > Department of Oral Surgery and Stomatology
04 Faculty of Medicine > School of Dental Medicine > School of Dental Medicine, Research

UniBE Contributor:

Caballé Serrano, Jordi; Chappuis, Vivianne; Monje, Alberto; Buser, Daniel Albin and Bosshardt, Dieter

Subjects:

600 Technology > 610 Medicine & health

ISSN:

0905-7161

Publisher:

Wiley-Blackwell

Language:

English

Submitter:

Caroline Balz

Date Deposited:

30 Jul 2019 14:47

Last Modified:

22 Oct 2019 21:35

Publisher DOI:

10.1111/clr.13487

PubMed ID:

31125452

Uncontrolled Keywords:

PEEK abutment dental implant macrophage multinucleated cell polyetheretherketone

BORIS DOI:

10.7892/boris.131626

URI:

https://boris.unibe.ch/id/eprint/131626

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