Here's a list of various Dental Degrees and Certificates , it's abbreviation and what it stands for along with some relevant links for your knowledge.
BDS - Bachelor of Dental Surgery
DDS - Doctor of Dental Surgery
DMD - Doctor of Dental Medicine
BDSc - Bachelor of Dental Science
BA,BDentSc - Bachelor of Dental Science
MSc - Master's degree in science
MDS - Master of Dental Surgery
PFA - Pierre Fauchard Academy (www.pfaindia.org) , [Non-academical]
FAMM - Fellowship Academy of Medicine of Malaysia (http://www.acadmed.org.my) , [Non-academical]
FICD - Fellow of the International College of Dentists (http://www.icd.org/) , [Non-academical]
FRCS - Fellowship of the Royal College of Surgeons (http://www.rcseng.ac.uk/)
FADI - Fellow of Academy of Dentistry International (http://www.adint.org/) , [Non-academical]
FICCDE - Fellow of the International College of Continuing Dental Education (http://www.icd.org/) , [Non-academical]
FDSRCS - Fellowship in Dental Surgery from the Royal College Of Surgeons (www.rcseng.ac.uk/fds)
FICOI - Fellow of the International Congress of Oral Implantologists. (http://icoi.org/)
FFDRCSI(Orth) - The Specialist Fellowship Diploma of the Faculty of Dentistry, Royal College of Surgeons in Ireland, in Orthodontics (http://dentistry.rcsi.ie/download/Orthodontic-Regs-08.pdf)
FRACDS (Australia) - Fellow of The Royal Australasian College of Dental Surgeons (http://www.racds.org/ )
MRACDS (Australia) - Member of the royal Australasian college of dental surgeons
PGDip Dental Implant - Post-Graduate Diploma in Dental Implants
M ORTH RCS Ed - Membership in Orthodontics from the Royal College of Surgeons of Edinburgh (https://www.rcsed.ac.uk/examinations/exam-details-page.aspx?calId=47b58bb0-a125-4f95-ac71-a1af1b865c45&locid=50)
MOrth RCPS (Glasgow) - Membership in Orthodontics, Royal College of Surgeons
PhD in Orthodontics - Doctor of Philosophy in Orthodontics
MFDS RCSEd - Diploma of Membership of the Faculty of Dental Surgery , managed jointly by the Royal College of Surgeons of Edinburgh and the Royal College of Physicians and Surgeons of Glasgow
MDSc - Master of Dental Science
DDPH - Diploma in Dental Public Health
MICD - Minimally Invasive Cosmetic Dentistry (http://www.micdglobalnetwork.com/) , [Non-academical]
MFGDP - Membership of the Faculty of General Dental Practitioners
MClinDent - Masters in Clinical Dentistry
Amended with courtesy from Dr. Muzafar Hamirudin - BDS(Mal) , MClinDent(London) , Dip DCSc(Lond) , MFDSRCS (Eng) , currently practicing in Pro Heal Dental Specialist Center (Kuala Lumpur) , also the Past-president of the Malaysian Dental Association and the Malaysian Association for Prosthodontics.
(Comment here if you would like to add something to this list)