Today I went to BIDC across the road from MBK. Although I did not need major work done, here is what was done and the cost.
2x xray cost 150 baht each.
Cleaning, Scaling and Polish cost 1,500 baht.
2x Filling cost 1000 baht each
2x Filiing cost 1800 baht.
Total of 5,800 baht.
Clean and hassle free service.
I did go in last week and booked an appointment for this week.