Development of a Japanese Version of the Formula for Calculating Periodontal Inflamed Surface Area: A Simulation Study.

ABSTRACT: The periodontal inflamed surface area (PISA) is a useful indicator of periodontal status. However, its formula was based on a meta-analysis involving five countries, and racial differences in tooth root morphology could have affected the calculations. This study aimed to develop a Japanese version of the PISA and compare it with the original version. The formulas reported by a previous Japanese study calculating the amount of remaining periodontal ligament from clinical attachment measurements were used to calculate the PISA. A simulation was performed to compare the Japanese version with the original version by inputting probing pocket depth (PPD) from 1 to10 mm and by using clinical data. The PISA values in the Japanese version were larger and smaller than those in the original version f

SUBMITTER: Ueda H 

PROVIDER: S-EPMC9408782 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature