Table:
Regular cleaning	Broken tooth

Patients under 18 years old	5	1

Patients 19-60 years old	2	4

Please determine the total count of rows and columns in the provided table, respectively. Format your final answer as a JSON, using the structure {"row_number": "m", "column_number": "n"}.

There are 3 rows and 3 columns in the table. So, the final answer is {"row_number": "3", "column_number": "3"}.