有關Angle's line of occlusion與esthetic line of the dentition之敘述，下列何者錯誤？
Angle's line of occlusion可用來分析牙弓對稱與否及擁擠程度
上下咬合時無法觀察Angle's line of occlusion
esthetic line of the dentition可用來評估牙齒與嘴唇關係
esthetic line of the dentition是沿著下顎前牙至後牙牙齒唇側面連線
