labial and or lingual frenum extension

例句：

1. 1. Thelabial and lingual frenumextensions are essential for the proper functioningof the mouth.
   唇侧和舌侧的纤维延伸对于口腔的正常功能至关重要。
2. 2. Duringsurgery, it is important to avoid damagingthe labial and lingual frenum extensions.
   在手术过程中，避免损伤唇侧和舌侧的纤维延伸非常重要。
3. 3. Thepatient's labial andlingual frenum extensions were severely damagedduring the accident.
   患者在事故中唇侧和舌侧的纤维延伸受到了严重损伤。