| Abbreviation | Definition |
|---|---|
| LHDP | Lansdowne House Dental Practice |
| LLB | Lower Left B (lateral incisor baby tooth) |
| LMDC | Lahore Medical Dental College |
| LOA | Lancaster Orthodontic Associates |
| LOA | Long Orthodontic Associates |
| LPDA | Lancaster Pediatric Dental Associates |
| LPID | London Periodontics and Implant Dentistry |
| LUDH | Liverpool University Dental Hospital |
| M.ORTH | Membership in Orthodontic |
| MADCH | Meenakshi Ammal Dental College and Hospital |
| MBDC | Mar Baselios Dental College |
| MBDS | Monterey Bay Dental Society |
| MBDS | Montgomery Bucks Dental Society |
| MCDC | Michigan Community Dental Clinics |
| MCDC | My Community Dental Centers |
| MCDP | Michigan Community Dental Plan |
| MCDS | Marin County Dental Society |
| MDA | Michigan Dental Association |
| MDA | Minnesota Dental Association |
| MDA | Missouri Dental Association |