I'm used to seeing temporary tables created with just the hash/number symbol, like this:

CREATE TABLE #Test
(
    [Id] INT
)

However, I've recently come across stored procedure code that specifies the schema name when creating temporary tables, for example:

CREATE TABLE [dbo].[#Test]
(
    [Id] INT
)

Is there any reason why you would want to do this? If you're only specifying the user's default schema, does it make any difference? Does this refer to the [dbo] schema in the local database or the tempdb database?