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A retrospective cohort study on 3D printed temporary crowns.
Michael Del Hougne1, Isabella Di Lorenzo2, Christian Höhne2
1Department of Prosthodontics, University of Würzburg, Pleicherwall 2, 97070, Würzburg, Germany. hougne_m@ukw.de.
Scientific Reports
|July 27, 2024
Summary
3D printed temporary crowns demonstrate a high survival rate of 98% and significantly improve patient satisfaction and oral health-related quality of life (OHRQoL). Clinical parameters also showed encouraging results in this study.
Area of Science:
- Dental Materials Science
- Biomaterials Engineering
- Prosthodontics
Background:
- 3D printing technology offers potential for customized dental restorations.
- Evaluating the clinical performance and patient outcomes of 3D printed temporary crowns is crucial.
Purpose of the Study:
- To assess the survival rate, clinical parameters, aesthetic satisfaction, and oral health-related quality of life (OHRQoL) of 3D printed temporary crowns.
- To analyze the long-term efficacy of 3D printed temporary restorations.
Main Methods:
- Retrospective cohort study of 98 3D printed temporary crowns (Formlabs Form3B, Permanent Crown Resin) from 63 patients.
- Survival analysis (Kaplan-Meier), clinical evaluation (modified USPHS criteria), aesthetic satisfaction, and OHRQoL (OHIP-14) assessment.
- Statistical analysis included Wilcoxon, Chi-squared tests, and Cronbach's alpha for reliability.
Main Results:
- A high survival rate of 98% was observed over an average follow-up of 256 days, with only 2 catastrophic failures.
- Significant improvements in OHRQoL (OHIP-14 scores decreased from 6.63 to 2.21, p=0.005) and patient aesthetic satisfaction (p<0.001) were reported.
- Clinical parameters evaluated using modified USPHS criteria yielded encouraging results.
Conclusions:
- 3D printed temporary crowns exhibit satisfactory survival rates and positive clinical outcomes.
- These restorations significantly enhance patient satisfaction with aesthetics and improve oral health-related quality of life.
- 3D printing represents a viable and effective method for fabricating temporary dental restorations.
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