Dyah Lestarining R; Dian Mulawarmanti; Widyastuti. (Study of Hyperbaric Oxygen Theraphy and Gold Sea Cucumber (Stichopus Hermanii) 3% for Collagen Density of Rat’s With Diabetes Mellitus Induced by Porphyromonas Gingivalis Bactery. DJKG 2021, 11, 73-82.