PEEK in dentistry, properties and application areas

Akay, Canan; Ersöz, Mirac Berke Topcu

doi:10.5577/intdentres.2020.vol10.no2.6

Cited by 20 publications

(8 citation statements)

References 51 publications

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“…Polyetheretherketone (PEEK) is one of the most commonly used polymers in the PAEK family in medicine and mainly serves as a substitute for metal orthopedic implants [ 4 ]. In recent years, PEEK has been applied to dental applications in oral implantology, such as implant abutment, and dental prostheses, such as crowns or partial dentures [ 5 , 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of Aging on the Fracture Characteristics of Polyetheretherketone Dental Crowns: A Preliminary Study

Srimaneepong

Chen

et al. 2022

Polymers

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Although polyetheretherketone (PEEK) is becoming more widely used in dentistry applications, little is known about how aging will affect this material. Therefore, this study aimed to investigate the influence of an aging treatment on fracture characteristics of PEEK dental crowns. Additionally, the impact of the addition of titanium dioxide (TiO2) into PEEK was examined. Two types of commercial PEEK discs were used in this study, including TiO2-free and 20% TiO2-containing PEEK. The PEEK dental crowns were fabricated and aging-treated at 134 °C and 0.2 MPa for 5 h in accordance with the ISO 13356 specification before being cemented on artificial tooth abutments. The fracture loads of all crown samples were measured under compression tests. Results demonstrated that adding TiO2 enhanced the fracture load of PEEK crowns compared to TiO2-free PEEK crowns before the aging treatment. However, the aging treatment decreased the fracture load of TiO2-containing PEEK crowns while increasing the fracture load of TiO2-free PEEK crowns. The fracture morphology of TiO2-containing PEEK crowns revealed finer feather shapes than that of the TiO2-free PEEK crowns. We concluded that adding TiO2 increased the fracture load of PEEK crowns without aging treatment. Still, the aging treatment influenced the fracture load and microscopic fracture morphology of PEEK crowns, depending on the addition of TiO2.

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Section: Introductionmentioning

confidence: 99%

Influence of Aging on the Fracture Characteristics of Polyetheretherketone Dental Crowns: A Preliminary Study

Srimaneepong

Chen

et al. 2022

Polymers

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“…[18] However, PEEK may also lead to the same displeasure regarding esthetic aspects with its high opacity and thickness. [19] Biocompatible printable resins may also be used in this area. e esthetic appearance due to transparency makes these resin materials a strong candidate for an alternative to metal alloys and PEEK in 3D-printed intraoral treatment modalities.…”

Section: Introductionmentioning

confidence: 99%

In vitro examination of fracture resistance of 3D-printed resin blocks in different diameters

Topsakal

Aksoy

Duran

2023

APOS

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Objectives: The intraoral use of commercial printable polymers in dental patients is still a challenge due to the unknown physical properties of the materials. The present study aimed to comparably evaluate the maximum load and deflection values of three-dimensional-printed resin blocks in different diameters that can be used intraorally in dental patients. Material and Methods: Forty-five cylindrical resin blocks in diameters of 2 mm (Group 1, n = 15), 3 mm (Group 2, n = 15), and 4 mm (Group 3, n = 15) and lengths of 20 mm were designed and printed. The samples were placed in the universal testing device to conduct the 3-point bending test. According to the Shapiro–Wilk normality test results, Kruskal–Wallis and Mann–Whitney U tests were performed for the statistical analysis. The level of statistical significance was accepted as P < 0.05. Results: The values for the maximum load (N) and deflection (mm) in the study groups were 218.4 ± 31.9, 2.96 ± 0.86 in Group 3; 77.05 ± 61.5, 3.91 ± 0.92 in Group 2; and 19.67 ± 2.63, 4.06 ± 1.02 in Group 1, respectively. The mean values of maximum load for Group 3 were superior to Group 2 (P = 0.020) and Group 1 (P = 0.00). Group 2 revealed higher maximum load results than Group 1 (P = 0.003). The mean values of maximum deflection in Group 3 were lower compared to Group 2 (P = 0.014) and Group 1 (P = 005). Conclusion: The results of this in vitro study encourage the use of resin-printed intraoral appliances in place of conventional treatment modalities.

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“…In recent years, PEEK has become the most common polymer in the family of polyaryletherketones (PAEKs) used in the biomedical industry, such as as a replacement for titanium implants in the orthopedic field [ 2 ]. PEEK has good biocompatibility and radiographic penetrability, is widely used in the field of orthopedics, and has recently crossed over into dental applications, such as crown/bridge, implant abutments, frameworks, and clasps for partial dentures [ 3 ]. Compared to metals and ceramics, PEEK has a lower elastic modulus (approximately 3–4 GPa) similar to that of alveolar bone (approximately 11.5 GPa) [ 4 ], thus overcoming the risk of stress shielding effects and serving as an alternative to titanium and ceramic implants.…”

Section: Introductionmentioning

confidence: 99%

Fracture Characteristics of Commercial PEEK Dental Crowns: Combining the Effects of Aging Time and TiO2 Content

Chen

Srimaneepong

et al. 2023

Polymers

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Polyetheretherketone (PEEK) is an emerging thermoplastic polymer with good mechanical properties and an elastic modulus similar to that of alveolar bone. PEEK dental prostheses for computer-aided design/computer-aided manufacturing (CAD/CAM) systems on the market often have additives of titanium dioxide (TiO2) to strengthen their mechanical properties. However, the effects of combining aging, simulating a long-term intraoral environment, and TiO2 content on the fracture characteristics of PEEK dental prostheses have rarely been investigated. In this study, two types of commercially available PEEK blocks, containing 20% and 30% TiO2, were used to fabricate dental crowns by CAD/CAM systems and were aged for 5 and 10 h based on the ISO 13356 specifications. The compressive fracture load values of PEEK dental crowns were measured using a universal test machine. The morphology and crystallinity of the fracture surface were analyzed by scanning electron microscopy and an X-ray diffractometer, respectively. Statistical analysis was performed using the paired t-test (α = 0.05). Results showed no significant difference in the fracture load value of the test PEEK crowns with 20% and 30% TiO2 after 5 or 10 h of aging treatment; all test PEEK crowns have satisfactory fracture properties for clinical applications. Fracture surface analysis revealed that all test crowns fractured from the lingual side of the occlusal surface, with the fracture extending along the lingual sulcus to the lingual edge, showing a feather shape at the middle part of the fracture extension path and a coral shape at the end of the fracture. Crystalline analysis showed that PEEK crowns, regardless of aging time and TiO2 content, remained predominantly PEEK matrix and rutile phase TiO2. We would conclude that adding 20% or 30% TiO2 to PEEK crowns may have been sufficient to improve the fracture properties of PEEK crowns after 5 or 10 h of aging. Aging times below 10 h may still be safe for reducing the fracture properties of TiO2-containing PEEK crowns.

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PEEK in dentistry, properties and application areas

Cited by 20 publications

References 51 publications

Influence of Aging on the Fracture Characteristics of Polyetheretherketone Dental Crowns: A Preliminary Study

Influence of Aging on the Fracture Characteristics of Polyetheretherketone Dental Crowns: A Preliminary Study

In vitro examination of fracture resistance of 3D-printed resin blocks in different diameters

Fracture Characteristics of Commercial PEEK Dental Crowns: Combining the Effects of Aging Time and TiO2 Content

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