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. 2024 Apr 17;16(8):1119.
doi: 10.3390/polym16081119.

Suitability and Trueness of the Removable Partial Denture Framework Fabricating by Polyether Ether Ketone with CAD-CAM Technology

Kening Zhao  1   2   3 , Su Wu  1   2   3   4 , Chao Qian  1   2   3 , Jian Sun  1   2   3
Affiliations

Suitability and Trueness of the Removable Partial Denture Framework Fabricating by Polyether Ether Ketone with CAD-CAM Technology

Kening Zhao et al. Polymers (Basel). .

Abstract

The object of the study was to evaluate the suitability and trueness of the removable partial denture (RPD) framework fabricated by polyether ether ketone (PEEK) with the CAD-CAM technology in vitro. Four different types of dentition defects were selected. In each type, five PEEK RPD frameworks were fabricated by the CAD-CAM technology, while five Co-Cr RPD frameworks were made by traditional casting. The suitability of the framework was evaluated by silicone rubber film slice measurement and the three-dimensional image overlay method. The trueness of the PEEK framework was detected by the three-dimensional image overlay method. Data were statistically analyzed with the use of an independent samples t-test (α = 0.05). The suitability values by silicone rubber film slice measurement of the PEEK group were lower than those of the Co-Cr group in four types, with the differences indicating statistical significance (p < 0.05) in type one, type two, and type four. The suitability values using the three-dimensional image overlay method showed no statistical differences (p > 0.05) between the two groups in four types. The trueness values of the PEEK group were within the allowable range of clinical error. The suitability and trueness of the PEEK RPD framework fabricated by CAD-CAM technology met the requirements of the clinical prosthesis.

Keywords: CAD-CAM; polyether ether ketone; removable partial denture; suitability; trueness.

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Conflict of interest statement

The authors declare no conflicts of interest.

Figures

Figure 1
Figure 1
Dentition defect models. (a) Bilateral terminal free dentition defects of mandible, (b) Bilateral non-terminal free dentition defects of mandible, (c) Bilateral non-terminal free dentition defects of maxilla, (d) Single posterior dentition defects of maxilla.
Figure 2
Figure 2
Digital design of PEEK RPD framework. (a) Bilateral terminal free dentition defects of mandible, (b) Bilateral non-terminal free dentition defects of mandible, (c) Bilateral non-terminal free dentition defects of maxilla, (d) Single posterior dentition defects of maxilla.
Figure 2
Figure 2
Digital design of PEEK RPD framework. (a) Bilateral terminal free dentition defects of mandible, (b) Bilateral non-terminal free dentition defects of mandible, (c) Bilateral non-terminal free dentition defects of maxilla, (d) Single posterior dentition defects of maxilla.
Figure 3
Figure 3
Nine detection sites. L1, L2, L3: Three reference points on the left edge of the major connector; M1, M2, M3: Three reference points in the center of the major connector; R1, R2, R3: Three reference points on the right edge of the major connector.
Figure 4
Figure 4
(a) Scanning data of framework with light silicone rubber, (b) Scanning data of framework without light silicone rubber, (c) Manual registered alignment of two scanning data in reverse engineering software.
Figure 5
Figure 5
The color-coded maps of suitability of PEEK frameworks. (a) Bilateral terminal free dentition defects of mandible, (b) Bilateral non-terminal free dentition defects of mandible, (c) Bilateral non-terminal free dentition defects of maxilla, (d) Single posterior dentition defects of maxilla.
Figure 6
Figure 6
The color-coded maps of trueness of PEEK framework major connectors (a–d).
See this image and copyright information in PMC

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References

    1. Revilla-León M., Gómez-Polo M., Vyas S., Barmak A.B., Gallucci G.O., Att W., Özcan M., Krishnamurthy V.R. Artificial Intelligence Models for Tooth-Supported Fixed and Removable Prosthodontics: A Systematic Review. J. Prosthet. Dent. 2023;129:276–292. doi: 10.1016/j.prosdent.2021.06.001. - DOI - PubMed
    1. Almufleh B., Arellanob A., Tamimi F. Patient-Reported Outcomes and Framework Fit Accuracy of Removable Partial Dentures Fabricated Using Digital Techniques: A Systematic Review and Meta-Analysis. J. Prosthodont. 2023 doi: 10.1111/jopr.13786. - DOI - PubMed
    1. Takaichi A., Fueki K., Murakami N., Ueno T., Inamochi Y., Wada J., Arai Y., Wakabayashi N. A Systematic Review of Digital Removable Partial Dentures. Part II: CAD/CAM Framework, Artificial Teeth, and Denture Base. J. Prosthodont. Res. 2022;66:53–67. doi: 10.2186/jpr.JPR_D_20_00117. - DOI - PubMed
    1. Sadek S.A. Comparative Study Clarifying the Usage of PEEK as Suitable Material to Be Used as Partial Denture Attachment and Framework. Open Access Maced. J. Med. Sci. 2019;7:1193–1197. doi: 10.3889/oamjms.2019.287. - DOI - PMC - PubMed
    1. Najeeb S., Zafar M.S., Khurshid Z., Siddiqui F. Applications of Polyetheretherketone (PEEK) in Oral Implantology and Prosthodontics. J. Prosthodont. Res. 2016;60:12–19. doi: 10.1016/j.jpor.2015.10.001. - DOI - PubMed

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