root fracture造句

例句与造句

1. Vertical root fracture is more likely where teeth have undergone extensive prior treatment.
2. Metal prefabricated post systems are being superseded by fibre-reinforced composite resin post systems which offer improved resistance to untreatable fracture of tooth substrate such as vertical root fracture.
3. It's difficult to find root fracture in a sentence. 用root fracture造句挺难的