Asset Details
Do you wish to reserve the book?
Scanning accuracy of an intraoral scanner according to different inlay preparation designs
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Scanning accuracy of an intraoral scanner according to different inlay preparation designs
Do you wish to request the book?
Scanning accuracy of an intraoral scanner according to different inlay preparation designs
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Scanning accuracy of an intraoral scanner according to different inlay preparation designs
2023
Overview
Background
The accuracy of intraoral scanning plays a crucial role in the workflow of computer-assisted design/computer-assisted manufacturing. However, data regarding scanning accuracy for inlay preparation designs are lacking. The purpose of this in vitro study was to evaluate the influence of the depth of the occlusal cavity and width of the gingival floor of the proximal box on the trueness and precision of intraoral scans for inlay restoration.
Methods
Artificial teeth were used in this study. Four types of preparations for mesio-occlusal inlay were performed on each #36 artificial tooth depending on two different depths of the occlusal cavity (1 mm and 2 mm) and widths of the gingival floor of the proximal box (1.5 mm and 2.5 mm). Artificial teeth were scanned 10 times each with Cerec Primescan AC, and another scan was performed subsequently with a laboratory scanner as a reference (
n
= 10). Standard tessellation language files were analyzed using a three-dimensional analysis software program. Experimental data were analyzed using two-way analysis of variance and the Bonferroni multiple comparison test.
Results
The narrow shallow group had significantly higher deviation values for trueness than the wide deep group (
p
< 0.05). The wide deep group had the lowest average deviation value for trueness and there was no significant difference between the narrow deep and wide shallow groups (
p
> 0.05). For the mean maximum positive deviation, the wide groups had significantly lower values than the narrow groups (
p
< 0.05). Trueness was affected by both the width and depth(
p
< 0.05), whereas the mean maximum positive deviation was affected by the width (
p
< 0.05). The mean maximum negative deviation was affected by all three factors (
p
< 0.05). Precision was affected by the depth and the interaction between the depth of the occlusal cavity and width of the gingival floor (
p
< 0.05).
Conclusions
The design of different inlay cavity configurations affected the accuracy of the digital intraoral scanner. The highest average deviation for trueness was observed in the narrow shallow group and the lowest in the wide deep group. With regard to precision, the narrow shallow group showed the lowest average deviation, and the narrow deep group showed highest value.
