Dialogic vs Dialectic

Dialectic

A verbal exchange that aims to resolve differences by discovering common ground. It's a philosophical practice that involves exploring the consequences of premises asserted by an interlocutor. Dialectic tends to lead to closure and resolution. 

Dialogic

A discussion that expands reciprocal understanding and finds room for accommodation. It's a multi-voiced approach to language production that involves listening to the implicit intentions behind a speaker's words. Dialogic often doesn't lead to closure and can be less competitive than dialectic