Comparison of Glass-ceramic and High-permeability Zirconia All-ceramic Crowns Restorations in Patients with Anterior Tooth Defects
CHEN Gang, et al
Yichang Central People's Hospital / First Clinical College of Three Gorges University / Central People's Hospital Affiliated to Three Gorges University, Hubei Yichang 443003, China
Abstract：Objective: To analyze the impact of restoration using glass-ceramic all-ceramic crowns and high-permeability zirconia all-ceramic crowns on aesthetic effect, masticatory function and 1-year follow-up results in patients with anterior tooth defect. Methods: From November 2022 to November 2023, 156 patients with anterior tooth defects admitted to the hospital were selected and randomly assigned to the control group (n=78, 98 prostheses) and the observation group (n=78, 92 prostheses). The control group underwent restoration using high-permeability zirconia all-ceramic crowns, while the observation group underwent restoration using glass-ceramic all-ceramic crowns. Both groups were followed up for one year. The two groups were compared in terms of aesthetic effect [Pink Esthetic Score (PES) and White Esthetic Score (WES)], masticatory function, periodontal indexes [probing depth (PD), bleeding index (BI) and plaque index (PLI)], and the incidence of adverse events. Results: The difference values of PES and WES scores before and after restoration were higher in the observation group than in the control group (P<0.05). Comparisons of difference values of bite force, masticatory efficiency, PD, BI and PLI scores before and after restoration found no statistically significant differences between the two groups (P>0.05). The incidence of adverse events was higher in the observation group than in the control group (P<0.05). Conclusion: Restoration using glass-ceramic all-ceramic crowns and high-permeability zirconia all-ceramic crowns both can improve masticatory function and periodontal indexes in patients with anterior tooth defects. However, the former can achieve better aesthetic effects, and the incidence of adverse events after restoration using high-permeability zirconia all-ceramic crowns is lower.
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2025, Vol. 31 
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