I havent been on any dental clinics in Manila but our dentists in Davao are very good. They were husband and wife that works in Davao Doctors Hospital Outpatient Building, my husband Paul prefers the lady dentist and I am under the husband, Doc Gary. They were expensive like P500 for prophylaxis which is way more cheaper compare here in the UK.
I'm sure someone will recommend one from Manila but in case you drop by in Davao then seeing The Batillier dentists is worth a go. Goodluck to you! xxx