Related Experiment Video
Updated: May 2, 2026

Quasistatic Mechanical Testing for Computer-Aided Design and Manufacturing Occlusal Veneers Cemented to Milled Dentin Analog Material
Published on: December 20, 2024
[Clinical evaluation of glass fiber-reinforced composites for fixed orthodontic lingual retainers]
Hai-miao Wu1, Ju-ju Zhang, Jie Pan
1Department of Orthodontics,Shanghai Stomatological Disease Center. Shanghai 200031, China.E-mail:wuhaimiao0805@126.com.
Purpose:
The purpose of this clinical evaluation was to assess the clinical effect of application of everStick Ortho glass fiber-reinforced composites for orthodontic lingual retainer.
Methods:
A total of 12 patients underwent orthodontic treatment using glass fiber-reinforced composites for fixed orthodontic lingual retainers. During a 24-month follow-up period after application of retainers, the condition of lingual retainers and the periodontal status were examined every 6 months. Gingival index and sulcus bleeding index were analyzed by nonparametric tests with SPSS 13.0 software package.
Results:
During 24-month follow-up period, 11 orthodontic lingual retainers were stable without fracture while the periodontal tissue revealed no significant changes in all 12 patients.
Conclusions:
The application of everStick Ortho glass fiber-reinforced composites for orthodontic lingual retainer is a viable alternative to conventional retainer used in orthodontic treatment.

