What Are the Chances of Bone Regeneration when Implants Are Placed Without Any Bone Graft?

I've had two bicuspids missing for several years and there was severe bone loss. I finally was able to get the two implants in about a month ago but the periodontist did not place any bone graft. He did mention something such as "membrane" being placed. Now, after 3 in a half weeks, I am noticing the implants are showing. Is that normal? What is my success rate considering that there was no bone graft placed? Please help.

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5 Doctor Answers | Asked by TicaGaga in Stanton, CA

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Dental Implants and Metal Show Through

Placing an implant without a bone graft is a normal variant of the procedure. Depending on your bony structure it may not have been needed. The fact that you had a membrane placed indicates that some sort of regeneration was trying to be achieved. What you are seeing may be one of two things 1)Cover screw: if it is a cover screw then you lost a lot of tissue and may have some issues in the future if you are not careful with oral hygiene. 2) Healing abutment: if it is... more

Exposed Implants

Based on your description, I'm thinking that since you had your implants placed by a trained clinician, a bone graft was not necessary. Perhaps what you are seeing in your mouth are the cover screws of the implant. When gum tissue heals, it may recede somewhat. When this happens, the top part of the implant which will connect it to the fake tooth may start to show. Once your tooth is connected to the implant, you will not see this cover screw since it is... more

Implants showing

If the margins of the implants show very little and the implants are not loose-the dentist should check that- you should not be concerned. If they show a lot and they are loose than the implants failed. They need to be removed, place bone graft and wait 4 to 6 months for bone regeneration, than attempt to replace the implants. Dr Barba

Bone graft for dental implants

It sounds like there was already a bone deficiency at time of implant placement. What he may have done is place the implants and noticing that there is some parts of it exposed and not covered by bone. Then he may have placed the 'membrane' over it, perhaps with some bone particles, to hope to cover it. Usually it's best to augment the bone first and develop the right width before placing the implant. In situations where there is a slight exposure (implant not covered by... more

H. Ryan Kazemi, DMD

1 review

Bethesda Oral & Maxillofacial Surgeon

www.facialart.com

Bone grafts are not always needed

Bone grafts are needed with there are defects or inadequate amount of bone, but it is very often needed. If the periodontist did not place one, then they were able to get them placed without on. If they are starting to show, then an onlay graft may be needed. You may also be seeing the healing collar or cover screw. Not likely a very big deal. I would certainly return to your periodontist and express concern, but things are likely doing just fine. more