So, explicit nazi thought stopped being taught pretty much right after the war ended. Both the allies and the soviets then started what's known as "de-nazification" campaigns which were aimed at re-educating the German people and eradicating fascist tought. People were shown footage of the camps and party members couldn't become teachers etc. However this period only lasted a couple of years and was more rigerous in the Soviet zone. The reason for this is simple: It's easy to think that the NS ideology was just some foreign ideology projected on the German people by the party leadership. But it was also a lived ideology that directly or indirectly played a role in the lives of millions of "regular" people. So there just weren't enough people, especially in the higher social and academic classes that had completely "clean" records. Climbing the social ladder during the NS time generally required some form of coperation with the regime. A big reason for the relaxation of the the de-nazification process in the west was the lack of teachers and layers with a "clean" background. The Soviets were more rigerous in both their de-nazification and the war reperations but the later GDR payed a definite economic price for it.

After the de-nazification period, the NS period pretty much stopped being a public conversation. Okay, that's an exaggeration but people didn't want to be reminded of the horrors of the war and the whole period. My dad, who grew up here in the 50s and early 60s once called that attitude "feed your mouth and shut it". So, publically the NS ideology was pretty much gone from public discourse. But in reality, you still had a significant amount of people that were in the party and cooperative with the regime in positions of power. The sheer amount of people that were sucessful under the NS regime in important politic, governmental, academic and social positions in West Germany up to even the 70s and 80s is kind of mind boggling if you go through the lists. While these people generally didn't publically espose their real views, it would be very naive to believe that all of them were repentant. Fascist viewpoints were rather re-packed and espoused as good-valued, anti-communist conservatism. As a result, the Germany of the 50s and 60s was, for the most part, extremly repressive. And this is precisely why the 1968 revolt/movement was such a big deal in Germany. You had a generation of adolescents asking a question, which their parents deemed taboo: "What did you do from 33 to 45?" A real public debate around fascism only emerged in the 70s after these kind of questions could no longer be ignored and also prompted some pretty interesting historiographical questions (see: "Historikerstreit").