Abstract: Objective To investigate the clinical outcome of 3D printing temporary crown for dental implant restoration in the posterior region. Methods Fifty patients with continuous tooth missing in posterior teeth area were selected and divided into two groups. All patients selected the same implant system. In the control group, the final restoration was directly completed according to the impression. In the experimental group, 3D printing temporary crown was used and adjusted according to clinical performance before final restoration. After the prosthodontics was fixed, chair-side time, the accuracy of final restoration and patients’ satisfaction were evaluated and analyzed. Results The chairside time of experimental group was significantly less than the control group (P<0.05). Moreover, the accuracy of restoration and satisfaction of patient in the experimental group were also higher than those in the control group (P<0.05). Differences were statistically significant. Conclusion 3D printing temporary crown has certain application value in the continuous missing tooth area, which benefits both doctors and patients.

Key words: 3D printing technology, temporary crown, multiple teeth loss, dental implant restoration