Why are temporary tables not removed from tempdb in SQL Server?

Question

I have created one stored procedure with 7 temporary tables and each temp table is dropped at the end of their own work.

I am calling the SP from one web service and

Answer 1

IF object_id('tempdb..#TableName') IS NOT NULL DROP TABLE #TableName

I think this will not work as we know sql server store temp table name with adding some extra character. if exists(select 1 from tempdb.sys.tables where name like '#TableName%') DROP TABLE #TableName