RESUMEN
PURPOSE: To analyse the types of chairside CAD/CAM all-ceramic restorations and the color range of all-ceramic materials used so as to provide reference for the application of clinical chairside all-ceramic restoration and the color selection of all-ceramic materials. METHODS: IPS e.max CAD prostheses and related data were collected from January 2021 to December 2021 from the Department of Prosthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine. The number and type of restorations and the color of materials were investigated and analyzed by descriptive statistics. RESULTS: A total of 1 374 restorations were included, of which 624 were crown restorations, accounting for 45.41% of the total restorations. 516 cases were veneer, accounting for 37.55%; 219 were inlays, accounting for 15.94%; fixed bridges were all adhesive bridges, with the least number with only 15 cases, accounting for 1.09%. In terms of the selection of restoration materials, the use rate of low-transparent(LT) ceramic blocks was significantly higher than that of other transparent ceramic blocks. A was the most frequently used ceramic color. The most frequently used porcelain blocks for veneers were LTA2 and LTA1; for inlay were LTA3; for crowns were LTA2 and LTA3. The blocks used in the fixed bridges were all LT, and A3 color was the majority. CONCLUSIONS: Chairside CAD/CAM all-ceramic prostheses made of IPS e.max CAD materials have been widely used in clinical practice. The types of prostheses include veneer, inset, crown and fixed bridge. The most commonly used IPS e.max CAD blocks are LTA2, LTA3 and LTA1. These findings have certain guiding significance for the clinical restoration decision and the reserve of porcelain blocks in primary hospitals.
Asunto(s)
Cerámica , Diseño Asistido por Computadora , Coronas , Cerámica/química , Diseño de Prótesis Dental/métodos , Porcelana Dental/química , Color , Humanos , Coronas con Frente Estético , Incrustaciones/métodos , Restauración Dental Permanente/métodosRESUMEN
This report presented a case of pathological movement of maxillary incisor. A 45-year-old female complained of increasing of the gap between the upper central incisors and increased mobility in the past two years. Clinical examination and Tscan â ¢ showed the existence of deflective contacts between RCP and ICP. Fractionated treatment of adjustment of the deflective contacts led to relief of upper incisor mobility, and periapical films showed new bone formation.