Dental Prosthesis

To determine the influence of hand practice sequence on psychomotor skill acquisition in a glass ceramic onlay preparation among undergraduate dental students.

The goal of this clinical trial is to use the investigational device (Zirconia Dental Ceramics) to perform dental prosthesis in Patients with permanent teeth. The main question it aims to answer is: Is the safety and efficacy of the investigational device (Zirconia Dental Ceramics) adequate to meet the requirements for clinical use? Participants will use the investigational device (Zirconia Dental Ceramics) to perform dental prosthesis and then complete a 12-month follow-up after prostheses. During the follow-up period，participants will assess their satisfaction，while the investigator will assess the efficacy indices of prosthesis survival rate, prosthesis success rate and prosthesis quality.