Abstract
Margin-Checker Type I has been developed to investigate the marginal fitness of crowns clinically. By the use of Margin-Checker Type I, delivered 315 crowns were examined.
Following results were obtained.
1. Margin-Checker Type I showed the exellent availability to examine the marginal fitness of crowns clinically.
2. The crowns of 100 μm or less overhang value accounted for 82.7% of all the examined ones.
