CHANGES IN OCCLUSAL FORCE AND OCCLUSION TIME OF POSTERIOR IMPLANT-SUPPORTED FIXED RESTORATIONS EVALUATED BY THE T-SCAN DIGITAL OCCLUSAL ANALYSIS SYSTEM

Kim Loan Hoàng , Văn Vĩnh Nguyễn , Việt Hải Hoàng , Đình Âu Hoàng , Thùy Dung Hà

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Abstract

Objective: To describe changes in occlusal force and occlusal time of implant-supported fixed prostheses in the posterior region before and after prosthesis delivery, using the T-Scan system. Materials and Methods: A descriptive case-series study was conducted on patients with posterior tooth loss who received implant-supported fixed prostheses at the School of Dentistry during 2024–2025. Occlusal force (OF) and occlusal time (OT) were recorded using the T-Scan system at the following time points: before prosthesis delivery (T0), immediately after delivery (T1), after 3 months (T2), and after 6 months (T3). The parameters were descriptively analyzed and compared over time. Results: A total of 38 patients with 41 qualified implant prosthetic units were included in the study. Occlusal force at the implant-supported prosthetic sites showed a gradual increase over the follow-up period, while occlusal time decreased after prosthesis placement. The distribution of occlusal force between the two sides of the dental arch tended to become more balanced at post-delivery time points. The T-Scan system enabled detection and monitoring of occlusal force changes that are difficult to identify using conventional occlusal assessment methods. Conclusion: Occlusal force and occlusal time of posterior implant-supported fixed prostheses change over time after prosthesis delivery. The digital occlusal analysis system T-Scan is a useful tool for evaluating and monitoring occlusal adaptation of implant prostheses in clinical practice.

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References

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