Abstract
Statement of problem: Reproducibility is an important factor determining the success of a prosthesis. However, no studies have focused on identifying the location of errors on prostheses fabricated with the subtractive method, leading to a lack of standards for reproducibility evaluations. Purpose: The purpose of this in vitro study was to evaluate the reproducibility of the subtractive method by conducting 3-dimensional assessments of presintered single-tooth zirconia copings for different teeth. Material and methods: Acrylic resin tooth molds for the canine (CAN), premolar (PRE), and molar (MOL) were used to prepare stone casts, and copings were designed and fabricated with the subtractive method. The intaglio surfaces of corresponding presintered zirconia copings were scanned with a blue light scanner. Initial scan data were used as a reference for comparisons with subsequent data for the measurement of errors. Nine color-difference maps were created for each of the 3 groups and used to calculate root-mean-square (RMS) error values. One-way analysis of variance and the Tukey honestly significant difference tests were used for statistical evaluations (α=.05). Results: MOL copings exhibited the highest RMS error value (9.22 ±1.56 μm), which was significantly different from values for CAN (3.33 ±2.65 μm) and PRE (4.00 ±2.40 μm; P
| Original language | English |
|---|---|
| Journal | Journal of Prosthetic Dentistry |
| DOIs | |
| Publication status | Accepted/In press - 2016 |
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ASJC Scopus subject areas
- Oral Surgery
Cite this
Three-dimensional evaluation of the reproducibility of presintered zirconia single copings fabricated with the subtractive method. / Kim, Chong Myeong; Jeon, Jin Hun; Kim, Ji Hwan; Kim, Hae-Young; Kim, Woong Chul.
In: Journal of Prosthetic Dentistry, 2016.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Three-dimensional evaluation of the reproducibility of presintered zirconia single copings fabricated with the subtractive method
AU - Kim, Chong Myeong
AU - Jeon, Jin Hun
AU - Kim, Ji Hwan
AU - Kim, Hae-Young
AU - Kim, Woong Chul
PY - 2016
Y1 - 2016
N2 - Statement of problem: Reproducibility is an important factor determining the success of a prosthesis. However, no studies have focused on identifying the location of errors on prostheses fabricated with the subtractive method, leading to a lack of standards for reproducibility evaluations. Purpose: The purpose of this in vitro study was to evaluate the reproducibility of the subtractive method by conducting 3-dimensional assessments of presintered single-tooth zirconia copings for different teeth. Material and methods: Acrylic resin tooth molds for the canine (CAN), premolar (PRE), and molar (MOL) were used to prepare stone casts, and copings were designed and fabricated with the subtractive method. The intaglio surfaces of corresponding presintered zirconia copings were scanned with a blue light scanner. Initial scan data were used as a reference for comparisons with subsequent data for the measurement of errors. Nine color-difference maps were created for each of the 3 groups and used to calculate root-mean-square (RMS) error values. One-way analysis of variance and the Tukey honestly significant difference tests were used for statistical evaluations (α=.05). Results: MOL copings exhibited the highest RMS error value (9.22 ±1.56 μm), which was significantly different from values for CAN (3.33 ±2.65 μm) and PRE (4.00 ±2.40 μm; P
AB - Statement of problem: Reproducibility is an important factor determining the success of a prosthesis. However, no studies have focused on identifying the location of errors on prostheses fabricated with the subtractive method, leading to a lack of standards for reproducibility evaluations. Purpose: The purpose of this in vitro study was to evaluate the reproducibility of the subtractive method by conducting 3-dimensional assessments of presintered single-tooth zirconia copings for different teeth. Material and methods: Acrylic resin tooth molds for the canine (CAN), premolar (PRE), and molar (MOL) were used to prepare stone casts, and copings were designed and fabricated with the subtractive method. The intaglio surfaces of corresponding presintered zirconia copings were scanned with a blue light scanner. Initial scan data were used as a reference for comparisons with subsequent data for the measurement of errors. Nine color-difference maps were created for each of the 3 groups and used to calculate root-mean-square (RMS) error values. One-way analysis of variance and the Tukey honestly significant difference tests were used for statistical evaluations (α=.05). Results: MOL copings exhibited the highest RMS error value (9.22 ±1.56 μm), which was significantly different from values for CAN (3.33 ±2.65 μm) and PRE (4.00 ±2.40 μm; P
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UR - http://www.scopus.com/inward/citedby.url?scp=84962110338&partnerID=8YFLogxK
U2 - 10.1016/j.prosdent.2015.10.027
DO - 10.1016/j.prosdent.2015.10.027
M3 - Article
JO - Journal of Prosthetic Dentistry
JF - Journal of Prosthetic Dentistry
SN - 0022-3913
ER -