Dental News - Using PEEK frameworks for full arch implant supported prosthetics

Marcus Jarman-Smith, PhD / Invibio Biomateria

Thu. 15 February 2018

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There is increased interest in the long term clinical outcomes and quality of life of patients treated with a high performance polymer for the framework material for full-arch implant-supported dental prosthetics, rather than the traditionally used metal or ceramic materials.

Dr. Bernd Siewert reported on his retrospective, single center clinical study using JUVORA frameworks for full-arch implant-supported prosthetics, made from PEEK-OPTIMA™ high performance polymer. Siewert conducted clinical and radiological assessments to measure the survival rates of the dental implants and prosthetics, rate of bone loss and the incidence of any biological complications. In addition, scores were collated to measure the oral health and patient quality of life and the satisfaction of patients fitted with a PEEK-based prosthetic.

The retrospective data review investigated 21 patients which corresponded to a total of 96 dental implant fixtures. Patients were treated with full-arch implant supported prosthetics manufactured with an internal substructure made from Invibio’s PEEK-based polymer.

The average follow-up post-prosthetic placement was 56 months (4 years, 8 months) ranging from the shortest time of 1 year and 2 months to the longest time of 8 years and 9 months.

Key Findings

Dental implant fixture survival rate was reported as high as 99 percent, and PEEK-based prosthetic survival rate was 100 percent, versus 89 to 95 percent(1,2) and 92 percent(3,4) for titanium(5) respectively. An average bone loss of 0.2 mm (+ 1.0) on the mesial aspect and 0.3 mm (+ 0.8) on the distal aspect was observed versus 1-1.5mm(6,7) for titanium. Patient peri-implantitis incidence was low at 1 percent versus 10 percent(1,8) for titanium. The mean total oral health and patient quality of life score was 3.1 points (± 3.3), with patient satisfaction deemed “extremely satisfactory.” For titanium the score averaged at 15.(9,10) Overall, when compared with the literature values of Titanium, JUVORA frameworks for full-arch implant supported dental prosthetics showed:

Up to 10 percent better implant survival rate.
Up to 5x less bone loss.
Up to 10x less incidence of peri-implantitis.
Up to 8 percent better prosthetic survival rate.
Nearly 3x better mean total score for oral health and patient quality of life.

Commentary

These results from a retrospective, single center study are limited, but do provide some initial clinical insight into the long-term outcomes and potential benefits of using a more shock absorbing high performance polymer substructure for full-arch implant borne prosthetics.

About Dr. Bernd Siewert

Dr. Bernd Siewert has been in private practice for over 20 years. Since 2007, he’s been an instructor at Germany’s International Training Center for Dental Implantology (IFZI), and authored and spoken internationally about his specialty, implantology.11

About the author

Dr. Marcus Jarman-Smith, PhD, is a strategic marketing manager with Invibio Biomaterial Solutions. He has worked specifically on medical applications for the high performance polymer PEEK (polyetheretherketone) for dental applications, for over a decade. In 2001, he received a PhD in chemical engineering, tissue engineering and biomaterials from the University of Bath, in the United Kingdom.

COMMENTARY AUTHOR: Marcus Jarman-Smith, PhD – Invibio Biomaterial Solutions

ORIGINAL PRESENTER: Dr Bernd Siewert, Clinica Somosaguas, Madrid, Spain

KEYNOTE SPEECH: B. Siewert (2017), PEEK in Dental Prosthetics (PEEK in der zahnärztlichen Prothetik Warum? Wann? Wie?), SSO Dental Meeting, Lugano, Switzerland, 11 February 2017

LEVEL OF EVIDENCE: Level 3 Retrospective Cohort Study