Fig.3: Occlusal view of the lower arch. The pontic at #30 looks like a premolar, whereas the retainer at #31 looks like a lower 1st molar. The ridge at the lower left posterior region is narrow (*).
Implants Change Occlusion Classification Last Next
Xin Wei, DDS, PhD, MS 1st edition 01/18/2017, last revision 05/31/2020