Feasibility of 3-Dimensional Visual Guides for Preparing Pediatric Zirconia Crowns: An In Vitro Study

Ho Yeon Kang, Hyeonjong Lee, Yong Kwon Chae, Seoung-Jin Hong, Yun Yeong Jeong, Ko Eun Lee, Mi Sun Kim, Hyo-Seol Lee, Sung Chul Choi and Ok Hyung Nam
Additional contact information
Ho Yeon Kang: Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University, Seoul 02447, Korea
Hyeonjong Lee: Department of Prosthodontics, Dental Research Institute, Dental and Life Science Institute, School of Dentistry, Pusan National University, Yangsan 46241, Korea
Yong Kwon Chae: Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University, Seoul 02447, Korea
Seoung-Jin Hong: Department of Prosthodontics, School of Dentistry, Kyung Hee University, Seoul 02447, Korea
Yun Yeong Jeong: Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University, Seoul 02447, Korea
Ko Eun Lee: Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University, Seoul 02447, Korea
Mi Sun Kim: Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University, Seoul 02447, Korea
Hyo-Seol Lee: Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University, Seoul 02447, Korea
Sung Chul Choi: Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University, Seoul 02447, Korea
Ok Hyung Nam: Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University, Seoul 02447, Korea

IJERPH, 2020, vol. 17, issue 16, 1-10

Abstract: This study evaluated the feasibility of a tooth preparation guide for prefabricated zirconia crowns (PZCs). Three-dimensional surface data for PZCs of the left maxillary primary first molar and left mandibular primary second molar were obtained using a model scanner. The tooth preparation data were digitally designed to harmonize with the adjacent teeth on the mixed dentition model and visualized using a color-coded map, which presents the required amount of tooth reduction. Twenty participants were recruited for preparing teeth with and without using the tooth preparation guide. The following three parameters were evaluated: tooth preparation time, harmony score, and amount of tooth reduction. The preparation time when using the guide was significantly reduced ( p < 0.05), and a significant difference was observed in the harmony scores for the maxillary primary first molar preparation. Furthermore, the amount of tooth reduction was significantly different for both maxillary and mandibular primary molars ( p < 0.05) in terms of the occlusal distal surface and buccal line angle in the maxillary primary first molars, and the smooth surfaces, proximal surfaces, and mesial line angles in the mandibular primary second molars. Thus, the results suggest that a tooth preparation guide could facilitate better tooth preparation for PZCs.

Keywords: computer-assisted three-dimensional imaging; crowns; deciduous tooth; dental materials; zirconium (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1660-4601/17/16/5732/pdf (application/pdf)
https://www.mdpi.com/1660-4601/17/16/5732/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jijerp:v:17:y:2020:i:16:p:5732-:d:396284

Access Statistics for this article

IJERPH is currently edited by Ms. Jenna Liu

More articles in IJERPH from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().