Single Maxillary Anterior Complications

Lessons learned:

• Complication arises from heavy occlusion and premature loading.
• Soft tissue in implant site during instrumentation.

---

Single Maxillary Posterior Complications

Lessons learned:

• Failure caused by sinus perforation

---

Single Mandibular Anterior Complications

Lessons learned:

• Bone loss due to root fracture. Delayed extraction of fractured root compromises implant site.
• Anatomical jaw - risky
• Second failure due to buccal fenestration
• Soft tissue must be cleaned out from implant site before drilling.

---

Single Mandibular Posterior Complications

Lessons learned:

• Prosthetic failure: remake prosthesis by maximize splinting.
• Cause of failure of #44 implant may be due to remnant soft tissue in implant site during drilling.
• Prosthetic failure: how a fractured abutment screw should be removed.
• When pain occurs, crown should be removed and implant checked for stability.
• Healing ball may be placed on the implant instead of crown to avoid early loading of the implant.
• Implant failure dealt by tightening implant.

---