Permanent front upper teeth
acute wisdom teeth periodontitis
lower impacted wisdom teeth
mandibular impacted wisdom teeth
wisdom teeth periodontitis
upper ridge (upper-level ridge)
upper trough (upper-level trough)
upper-air chart (upper-level charty)
water diversion from the upper Yangtze River in the south to the upper Yellow River in the north
1221 upper working face
2×2 Upper Triangular Operator Matrixes
95% Upper confidence limit
a landslide dam located in the upper-reach of Yell
Aberdeen Upper Reservoir