Re-implantation in the same site that failed?

please explain more about your reasons for explant.

it appears the mesial implant was not placed deep enough when inserted thats why there are threads exposed. Do you have a radiograph showing implant at placement?

Could we have some views on GBR material ?

The left implant is at the level of crest. The right implant seems it has been placed superficially as Dr Kurtzman described above, and the story of "bone loss" does not add up I am afraid! Otherwise the left implant would have been 3 mm below the alveolar crest at the time of the placement! If you have to explant the implant of any reason; position or angulation, you can perhaps place a shorter implant similar and parallel to the left implant (if in correct position). The new implant should engage partially in to newly prepared bone.

You could also have placed the implant in a site where the bone width was narrow at the coronal part of the implant and by eliminating the blood supply to the area you caused the coronal bone loss. Without pictures and x-rays of the surgery it is only a guess. If there is enough bone to go deeper, you may be able to use the same length implant, otherwise you may need a shorter one. Good luck!

you can definitely place an implant at the same site but not the same day. If you are contemplating placing an implant at the same site, I'd wait about one month prior to re-entry.

Hi everyone, Both implants were placed 0.5-1mm below bone level. Coronal bone loss definitely happened. I think dr. Boudet is right, it was either too narrow bone or maybe occlusal pressure. I opened it up yesterday, definitely bone was disappearing, and some hard fibrous tissue replacing it. No infection (no pus), actually no fluid at all. i removed the implant, fibrous tissue was growing around it. i placed another one, wider, made a bigger hole and placed a 4.2 implant in the same place. We will see after 3 months. Thank you everyone.

Good topic . Going back to vaducs the blood supply to the crest of alveolar bone us from periodontium and if the implant was placed in immediate extraction site you are bound to lose the crest early on . If the implant was placed in healed healthy bone then the bone loss is dependent on the thuckness of bone st the region of the neck of implant . Going by mechanics if this bone at crest was very thin it is bound to resorb. As regards explant and implanting let's not forget physiology . You are placing implant in remodelled bone with skewed healing response . I would wait for good 3 months before re entry . Possibly I would graft ramus or chin bone to gain width at that stage .

Sorry typo I meant basics instead of vaducs!!!! Auto correction

That's why the guideline is to have 2mm bone buccal and lingual. Would have been a good idea to plasty the ridge to get more width and also allowing you to place the implants at the same level (height).