Available online 30 March 2023

A digital workflow for fabricating a polyetherketoneketone (PEKK) periodontal splint is described. The antibacterial properties of PEKK and the precision and efficiency of digital technology led to the provision of a splint with no adverse effects on oral hygiene or periodontal maintenance during a 2-year follow-up.

A 36-year-old woman was referred to the Department of Orthodontics, Nanjing Stomatological Hospital for an orthodontic consultation with the chief complaint of protrusion and crowding of her anterior teeth. Clinical and radiographic examination revealed that her mandibular anterior teeth were severely affected by periodontitis (Fig. 1). After periodontal treatment, the mobility of her mandibular anterior teeth was not significantly improved. Both maxillary first premolars and the right

The patient came to the orthodontic department with the chief complaint of the crowding and protrusion of her anterior teeth. Her examination revealed sites with probing depths of 2 to 6 mm in the mandibular incisor region, and radiography revealed localized severe horizontal bone loss in this area. Bleeding on probing was observed in 25% of sites. She had class II mobility of her mandibular incisors. The most extensive bone loss was 66%, and the percentage bone loss/age ratio was 1.83. Smoking

Digitally guided techniques based on CAD-CAM were used to fabricate a PEKK splint. The procedure offers a customized, biocompatible, and esthetically pleasing way of stabilizing mobile teeth. The PEKK splint performed well clinically, with good preservation and stabilization 2 years after delivery. No detrimental impact on periodontal maintenance was observed. Since long-term observational or clinical evidence for this material is lacking, research is needed.

Bingzhi Qian: Investigation, Writing – original draft. Kun Ji: Investigation, Funding acquisition. Wei Lu: Methodology, Writing – review & editing, Funding acquisition. Guofeng Wu: Methodology, Funding acquisition. Baochun Tan: Project administration. Jianlong Jing: Software, Project administration. Jun Ji: Writing – review & editing, Supervision, Funding acquisition.

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© 2023 by the Editorial Council for the Journal of Prosthetic Dentistry.