The 6-foot-8 Dekker finished with 15 points in the loss and is considered a potential first-round pick. But he reiterated he will be back in Madison for his junior campaign.
"I'm coming back," said Dekker, who entered the game averaging 12.4 points and 6.1 rebounds.
The 7-foot Kaminsky struggled for much of the game after averaging a team-high 14.1 points and 6.4 boards.
"I'm not going anywhere," Kaminsky said.
Wisconsin is expected to return four starters from a team that finished 30-8.