Various dental notations exist worldwide to designate tooth chart numbering systems. The FDI (Fédération Dentaire Internationale) system is a global standard, providing a consistent approach to permanent dentition classification. The Universal Tooth Numbering System is widely accepted, simplifying communication among dental professionals globally. The Palmer system, with its alternates like Haderup and Zsigmondy, is utilized in specific regions. Additionally, a Letter/Number system is employed in some contexts. For primary teeth, the
universal tooth numbering system primary is employed. Understanding these diverse dental notations is crucial for effective international collaboration and communication within the field of dentistry.