英语语法分析

In this article, TN line was thought it could be used as a basic line in orthognathic surgery design.

本文提出可以使用TN线作为正颌外科术前设计中的基线。

Results This system can simulate the process of orthognathic surgery and predict postoperative effect.

结果该系统可以帮助医生直观地观测手术过程和效果，选择合理的手术方案。

This article is to review and discuss the main advances in orthognathic surgery including distraction osteogenesis.

本文对其中的主要方面，包括牵张成骨在正颌外科中的应用，做一简要的回顾和讨论。