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http://dx.doi.org/10.14347/jtd.2020.42.4.334

Comparison of three-dimensional adaptation as per the rinsing time of temporary crown manufactured using a digital light processing printer  

Lee, Beom-Il (Department of Dental Laboratory Science and Engineering, College of Health Science, Korea University)
You, Seung-Gyu (Department of Dental Laboratory Science and Engineering, College of Health Science, Korea University)
You, Seung-Min (Department of Dental Laboratory Science and Engineering, College of Health Science, Korea University)
Kim, Ji-Hwan (Department of Dental Laboratory Science and Engineering, College of Health Science, Korea University)
Publication Information
Journal of Technologic Dentistry / v.42, no.4, 2020 , pp. 334-340 More about this Journal
Abstract
Purpose: This study aimed to compare three-dimensional adaptation with the rinsing time of the temporary crown produced using the digital light processing method. Methods: The maxillary right first molar abutment was scanned with a dental scanner. A temporary crown was designed with the scanned abutment. The designed crown was made of 10 temporary crowns using a digital light processing printer. The crowns were divided into the 5-minute and 10-minute rinsing groups; 5 temporary crown washes were performed for each group. In order to obtain the internal data, each group was scanned for a temporary crown. The three-dimensional fit was measured by superimposing the scanned internal surface data and the abutment data. The average comparison of three-dimensional adaptation was analyzed using the Mann-Whitney U test. Results: The 5-minute rinsing group showed a significantly higher adaptation of 71.42±3.08 ㎛ as compared to the 10-minute rinsing group (67.52±0.92 ㎛) (p<0.05). Conclusion: When making a temporary crown with a digital light processing method, a rinsing time of 10 minutes is appropriate.
Keywords
Adaptation; Additive manufacturing; Digital light processing; Provisional crown; Vat photopolymerization;
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Times Cited By KSCI : 3  (Citation Analysis)
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