Dina was the fastest with 13.21 seconds, followed by Emilia Nova with 13.27 seconds.
Meanwhile, the bronze medal was won by Vietnamese runner, Huynh Thi My Tien, who recorded a time of 13.43 seconds.
From the start, Dina was projected to win gold at the biennial Southeast Asian Games.
He is the national record holder of 13.11 seconds set at the 26th Asian Championships at Gumi Stadium, South Korea, last May.
Before leaving for Thailand, Dina underwent training camp in Japan.
