sistem 4dCaries staging and activity assessment is the second essential step in the 4D-cycle for effective and personalised care. It builds on the knowledge acquired from the 1 st D. The aim is tosistem 4d-tisu 4d Layanan Sistem Informasi Link,analisis Dan Perancangan sistem 4d Perkuliahan Daring Untuk Mata Kuliah : Analisis Dan Perancangan Sistem 4d Bambang