8.對於下顎平面角過大( high angle, hyperdivergent)的敘述何者錯誤?
A.下顎多為位於向前向下的位置(forward and downward)
B.
有明顯的史比曲線(curve of Spee)
C.下顎聯合(symphysis)多表現出細長且狹窄(long and narrow)的情形
D.顳肌功能較差(weak temporal muscles)
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9.以下是一些測顱分析值: SNA = 82°,SNB = 79°,U1 to NA = 10 mm,IMPA = 100°,FMA
= 25°,根據這些數值,下列何者為正確的診斷?
A.Skeletal ClassI pattern with bimaxillary protrusion
B.
Skeletal ClassI pattern with hyperdivergent
C.Skeletal ClassII pattern with hyperdivergent
D.Skeletal ClassII pattern with bimaxillary protrusion
10.下列相同直徑的矯正線,其彈性由大而小的排序為何?
SS:不銹鋼矯正線 TMA:β-鈦矯正線 NiTi:鎳鈦合金矯正線
A.SS > TMA > NiTi
B.NiTi > SS > TMA
C.TMA > SS > NiTi
D.NiTi > TMA > SS