Universal Numbering System: Permanent Teeth

Universal Numbering System for Permanent Teeth

• The Universal Numbering System is a method for identifying and categorizing permanent teeth in humans.
• Each tooth is assigned a specific number from 1 to 32.

Maxillary Teeth (Upper Teeth)

• Maxillary Right 3rd molar is identified as tooth number 1.
• Maxillary Right 2nd molar is identified as tooth number 2.
• Maxillary Right 1st molar is identified as tooth number 3.
• Maxillary Right 2nd bicuspid/premolar is identified as tooth number 4.
• Maxillary Right 1st bicuspid/premolar is identified as tooth number 5.
• Maxillary Right canine/cuspid is identified as tooth number 6.
• Maxillary Right lateral incisor is identified as tooth number 7.
• Maxillary Right central incisor is identified as tooth number 8.
• Maxillary Left central incisor is identified as tooth number 9.
• Maxillary Left lateral incisor is identified as tooth number 10.
• Maxillary Left canine/cuspid is identified as tooth number 11.
• Maxillary Left 1st bicuspid/premolar is identified as tooth number 12.
• Maxillary Left 2nd bicuspid/premolar is identified as tooth number 13.
• Maxillary Left 1st molar is identified as tooth number 14.
• Maxillary Left 2nd molar is identified as tooth number 15.
• Maxillary Left 3rd molar is identified as tooth number 16.

Mandibular Teeth (Lower Teeth)

• Mandibular Left 3rd molar is identified as tooth number 17.
• Mandibular Left 2nd molar is identified as tooth number 18.
• Mandibular Left 1st molar is identified as tooth number 19.
• Mandibular Left 2nd bicuspid/premolar is identified as tooth number 20.
• Mandibular Left 1st bicuspid/premolar is identified as tooth number 21.
• Mandibular Left canine/cuspid is identified as tooth number 22.
• Mandibular Left lateral incisor is identified as tooth number 23.
• Mandibular Left central incisor is identified as tooth number 24.
• Mandibular Right central incisor is identified as tooth number 25.
• Mandibular Right lateral incisor is identified as tooth number 26.
• Mandibular Right canine/cuspid is identified as tooth number 27.
• Mandibular Right 1st bicuspid/premolar is identified as tooth number 28.
• Mandibular Right 2nd bicuspid/premolar is identified as tooth number 29.
• Mandibular Right 1st molar is identified as tooth number 30.
• Mandibular Right 2nd molar is identified as tooth number 31.
• Mandibular Right 3rd molar is identified as tooth number 32.

Additional Notes

• The numbering system begins with the upper right third molar (1) and ends with the lower right third molar (32).
• This systematic approach aids in dental communication, treatment planning, and record-keeping.