Gingival Soft Tissue Integrative Zirconia Abutments with High Fracture Toughness and Low-Temperature Degradation Resistance.

ABSTRACT: Low fracture toughness, low-temperature degradation (LTD) susceptibility, and inadequate soft tissue integration greatly limit the application of zirconia ceramic abutment. Integrating the "surface" of hard all-ceramic materials into the gingival soft tissue and simultaneously promoting the "inner" LTD resistance and fracture toughness is challenging. Composite ceramics are effective in improving the comprehensive properties of materials. In this study, we aim to develop a zirconia composite abutment with high "inner" structure stability and "surface" bioactivities simultaneously and to explore the mechanism of performance improvement. Therefore, elongated SrAl₁₂O₁₉ and equiaxed Al₂O₃ were introduced into the zirconia matrix by using the Pechini

SUBMITTER: Li Q 

PROVIDER: S-EPMC11756602 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature