可摘局部义齿钴铬铸造支架和数字化打印支架的临床失败率对比

doi:10.13591/j.cnki.kqyx.2022.12.010

Abstract

Abstract: Objective To compare and analyze differences in clinical failure rate of removable partial dentures (RPD) Cobalt-Chromium (Co-Cr) frameworks made by conventional methods and digital printing methods. Methods From 2020 to 2021,1 020 RPD Co-Cr frameworks made by conventional methods and digital printing methods (selective laser melting, SLM) were analyzed retrospectively, and clinical failure rate and factors affecting the failure were analyzed. Results Clinical failure rate of conventional casting Co-Cr frameworks was slightly higher than that of SLM frameworks. The main reason for the failure of casting frameworks was poor precision with an incidence of 3.42%, and followed by the fracture rate, accounting for 0.22%. The main reasons for the failure of SLM frameworks were fracture and poor precision with an incidence of 1.75% and 0.88%, respectively. There was a statistical difference in the fracture rate of large junction between the two frameworks, and there was no statistical difference in other failure factors. Conclusion The clinical failure rate of conventional Co-Cr frameworks is slightly higher than that of SLM frameworks. The main reason for failure of casting framework is poor precision, while the main reason for SLM framework failure is fracture.

Key words: Cobalt-Chromium, framework, casting, digital printing, failure rate

CLC Number:

R783.4

YANG Leining, YANG Qian, ZHAO Junna, XIA Huiyu, HAN Xiaopeng. Comparison of clinical failure ratebetween traditional removable partial dentures and digitally printed Cobalt-Chromium frameworks[J]. Stomatology, 2022, 42(12): 1104-1108.

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Comparison of clinical failure ratebetween traditional removable partial dentures and digitally printed Cobalt-Chromium frameworks

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