{
  "abstract": "Purpose: To compare the clinical outcomes and biomechanical performance of digitally fabricated polyether-ether-ketone (PEEK) complete dentures with conventional polymethyl methacrylate (PMMA) dentures using finite element analysis (FEA). Methods: Ten edentulous patients were enrolled. Each received both conventional PMMA dentures and digitally duplicated PEEK dentures. Tissue adaptation was evaluated using light-body silicone and 3D deviation analysis. Masticatory efficiency was assessed spectrophotometrically, and patient satisfaction via questionnaires. Paired t-tests were used for comparisons. The coefficient of friction between PEEK and mucosa was measured in vitro for the first time. Together with the concurrently measured PMMA–mucosa friction coefficient, these values were incorporated into finite element analysis software to evaluate the stress distribution and displacement of the dentures, mucosa and alveolar bone under centric and lateral occlusal conditions. Results: No significant differences were found between groups in denture–tissue adaptation or patient satisfaction at 1, 3 and 6 months ( P > .05). However, PEEK dentures showed significantly higher masticatory efficiency ( P < .01). FEA demonstrated more uniform mucosal stress distribution and reduced denture deformation in the PEEK group under both occlusal conditions. Alveolar bone stress distribution was similar and remained within physiological limits in both groups. Conclusions: Digitally fabricated PEEK complete dentures achieve comparable adaptation and satisfaction to PMMA dentures, while providing improved masticatory efficiency and favourable biomechanical performance. Clinical Significance: PEEK complete dentures fabricated via digital workflows show strong potential as a reliable alternative to conventional dentures, with promising clinical applicability.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Geriatric Stomatology, Hospital of Stomatology, Jilin University, Changchun, China",
    "No. 964 Hospital of the Joint Logistics Support Force, Chinese People’s Liberation Army, Changchun, China",
    "Hospital of Stomatology, Jilin University, Changchun, 130021, China"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 7,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Sizheng Fan"
    },
    {
      "affs": [
        0
      ],
      "name": "Pengyuan Liu"
    },
    {
      "affs": [
        0
      ],
      "name": "Yongcheng Ge"
    },
    {
      "affs": [
        0
      ],
      "name": "Wei Li"
    },
    {
      "affs": [
        1
      ],
      "name": "Chao Jiang"
    },
    {
      "affs": [
        2
      ],
      "name": "Hongchen Sun"
    },
    {
      "affs": [
        0
      ],
      "name": "Xiaoqiu Liu"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/1yevd3ttm3zv0.bib",
  "cited_by": 0,
  "doi": "10.1016/j.identj.2026.111227",
  "fulltext_url": "http://www.sciencedirect.com/science/article/pii/S0020653926018162",
  "id": "1yevd3ttm3zv0",
  "issns": [
    "0020-6539",
    "1875-595X"
  ],
  "landing_url": "https://doi.org/10.1016/j.identj.2026.111227",
  "language": "en",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "lcc",
      "RK1-715"
    ],
    [
      "openalex",
      "3505|Dental materials and restorations"
    ]
  ],
  "openalex": "W7223231847",
  "pdf_url": null,
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-30",
  "publisher": "Elsevier",
  "ris": "https://research.draconitic.com/paper/1yevd3ttm3zv0.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T13:44:33Z",
      "native_id": "8aa31b08e4a54853b2d0484750acdff5",
      "source": "doaj",
      "url": "https://doi.org/10.1016/j.identj.2026.111227"
    }
  ],
  "subjects": [
    {
      "field": "medicine",
      "origin": "lcc:RK1-715",
      "subfield": "general"
    }
  ],
  "title": "Digital Polyetheretherketone Complete Dentures: A Clinical Study and Finite Element Analysis",
  "title_text": "Digital Polyetheretherketone Complete Dentures: A Clinical Study and Finite Element Analysis",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T13:44:33Z",
  "url": "https://research.draconitic.com/paper/1yevd3ttm3zv0",
  "venue": "International Dental Journal",
  "versions": []
}