① alveolar bone bone mass is insufficient, can be solved by bone graft method. The problem of
② maxillary sinus and mandibular canal can be planted by X-Ray and CT, and the spiral CT can guide direction more accurately. Choose the right implant length, and an accurate implant angle.
③ are planted immediately after tooth extraction.
④ for patients with insufficient economic conditions, the method of covering denture repair can be used.
⑤ defects in the jaw, facial tissues and organs can also be repaired by planting methods.