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ORIGINAL ARTICLE
Year : 2020  |  Volume : 20  |  Issue : 1  |  Page : 38-44

Clinical evaluation of performance of single unit polyetheretherketone crown restoration-a pilot study


Department of Prosthodontics, SDM College of Dental Sciences and Hospital, Dharwad, Karnataka, India

Correspondence Address:
Dr. Kavishma Sulaya
Department of Prosthodontics, AJ Institute of Dental Sciences and Hospital, Kuntikana, Mangalore - 575 004, Karnataka
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jips.jips_228_19

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Aim: The aim of this study was to evaluate the clinical performance and patient satisfaction of PEEK Crowns. Setting and Design: In-vivo longitudinal pilot study. Materials and Method: 20 PEEK crowns were placed in 20 patients. 11 were placed in the maxilla and 9 were placed in the mandible. All procedural steps were performed by the same operator. The teeth were prepared with a chamfer finish line of 0.8 to 1 mm. The crowns fabricated were luted using resin cement. Using Modified Ryge's Criteria, the crowns were examined for anatomic form, marginal integrity, surface roughness, restoration staining, marginal discoloration and color match at a time interval of 1 week, 1 month, 3 months, 6 months, one year. Patient satisfaction was also evaluated at the same interval using a questionnaire. Statistical Analysis Used: The data collected was evaluated using fisher's exact test. Results: Based on modified Ryge's criteria, almost 90% of the crowns were rated satisfactory. Fracture was registered in only one crown. Slight chipping off was seen in two crowns. No significant difference was seen in any other factors assessed. Slight variation was seen in the periodontal status of 3 patients. Conclusion: Within the limitations of this study the following conclusions were drawn that the PEEK crowns demonstrated by the use of Modified Ryge's Criteria, its capability to produce quality prostheses that were rated satisfactory with a relatively low rate of fracture over the relative mean period of one year.


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