MunichDental Academy

Tooth #21 (FDI 34): lower left first premolar

FDI tooth 34 is the lower left first premolar (quadrant 3): Universal #21, Palmer LL4. With neighbouring teeth and the full chart.

Notation in the three numbering systems

FDI (ISO 3950)
34
Universal (ADA)
#21
Palmer
┌4 (LL4)
Name
Lower left first premolar
Tooth type
First premolar
Group
Posterior tooth
Quadrant
Quadrant 3: lower left (mandibular left)
Dentition
Permanent dentition

Position in the tooth chart

Tooth 18 (FDI), upper right third molar (wisdom tooth)18Tooth 17 (FDI), upper right second molar17Tooth 16 (FDI), upper right first molar16Tooth 15 (FDI), upper right second premolar15Tooth 14 (FDI), upper right first premolar14Tooth 13 (FDI), upper right canine13Tooth 12 (FDI), upper right lateral incisor12Tooth 11 (FDI), upper right central incisor11Tooth 21 (FDI), upper left central incisor21Tooth 22 (FDI), upper left lateral incisor22Tooth 23 (FDI), upper left canine23Tooth 24 (FDI), upper left first premolar24Tooth 25 (FDI), upper left second premolar25Tooth 26 (FDI), upper left first molar26Tooth 27 (FDI), upper left second molar27Tooth 28 (FDI), upper left third molar (wisdom tooth)28Tooth 48 (FDI), lower right third molar (wisdom tooth)48Tooth 47 (FDI), lower right second molar47Tooth 46 (FDI), lower right first molar46Tooth 45 (FDI), lower right second premolar45Tooth 44 (FDI), lower right first premolar44Tooth 43 (FDI), lower right canine43Tooth 42 (FDI), lower right lateral incisor42Tooth 41 (FDI), lower right central incisor41Tooth 31 (FDI), lower left central incisor31Tooth 32 (FDI), lower left lateral incisor32Tooth 33 (FDI), lower left canine33Tooth 34 (FDI), lower left first premolar34Tooth 35 (FDI), lower left second premolar35Tooth 36 (FDI), lower left first molar36Tooth 37 (FDI), lower left second molar37Tooth 38 (FDI), lower left third molar (wisdom tooth)38

Dentist's view: R = patient's right side. Every tooth in the chart links to its page.

Neighbouring teeth

Tooth 33lower left canineTooth 35lower left second premolar

Opposing tooth

Tooth at the same position in the opposite jaw, on the same side:

Tooth 24upper left first premolar

Courses on posterior teeth

Hands-on courses of the Munich Dental Academy with Dr. Jan Hajtó and guest instructors.

Endo PraxisPro - Basic

Structured Endodontics Curriculum for Daily Practice: Basic & Advanced

View the course

Prosthetic Dentistry Course

Efficiency and Precision in Adhesive and Conventional All-Ceramic Restorations

View the course
Open the interactive tooth chart and converter

Reference for dentists and dental students. Notation according to the FDI two-digit system (ISO 3950) and the ADA Universal Numbering System.