Main Article Content
Caries is a common oral and dental disease. The main etiology of caries is plaque.
Chewing fibrous fruits can prevent plaque accumulation, including Manalagi apples
and Fuji apples. The purpose of this study was to determine the differences in the
effectiveness of consuming manalagi apples with fuji apples on the reduction of the
plaque index in Madrasah Aliyah Al-Hidayah students. This type of research is a
quasi-experimental design with pre test and post test control group. Total sample was
32 students aged 16-18. Data were analyzed by statistical test T Test. Based on the
results of the paired t test statistical test, it was found that the average plaque index
before chewing an apple was 0.63 ± 0.42 after 0.26 ± 0.26 with a mean of 0.37 ± 0.16.
Meanwhile, the plaque index before chewing on Fuji apples was 1.01 ± 0.59 after 0.87
± 0.54 with a mean 0.14 ± 0.05. The results of the independent statistical t test
showed that the value of p = 0.001, which means that there is a difference in chewing
Manalagi apples with Fuji apples to decrease the plaque index. The conclusion of this
study is that consuming manalagi apples is more effective than fuji apples in reducing
the plaque index