I wouldn't recommend De Pacific dental, went there after reading online reviews & though I agree that Dr. Chua is gentle, I find that I don't feel comfortable talking to him at all, like he had to talk really carefully (feels like a wall being built up between doctor & patient)& in my opinon, after I communicated to him what I had in mind for my dental treatment (not just polishing & cleaning), he recommended invisalign, it is not only costly ($6K - $7K), he is also not a certified orthodontist, mind you. To be fair to Dr. Chua, I didn't think he was hardselling me the invisalign treatment, but it still feels like subconcious pyscho.. :-\
On the other hand, I totally would go for Dr Chan from NTUC Denticare (TPY). I didn't particular research for Dr. Chan, he was recommended to me by my previous Orthodontist, Dr Boey, who happened to be working in the same dental clinic with Dr. Chan. In my opinon, both docs are professional, explaining & making sure that I understood the treatment that I will be receiving before proceeding. I told them what kind of dental treatment I'm looking for - no hardselling, no subconscious pycho - just very detailed explaination to the results/consequences if I were to proceed with the treament. Thanks to both Dr Boey & Dr Chan!