Dental Implants: Q&A

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Advice on Suggested Dental Crown Replacement with Implant?

In 2005 I had a crown fitted to a root canal treated front tooth but recently the crown became loose. At a dental exam I was advised not to have another crown but instead an implant fitted as the tooth remaining underneath is unlikely to support a crown for long. Is it common that a crowned tooth become smaller to such an extent that eventually a crown is not possible?

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5 Doctor Answers | Asked by BruceDixon

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Crown over tooth with root canal / option for implant

Hi It is not unusual for a tooth to become non restorable after crown placement. Some times it is because of recurrent decay and others because there is not enough tooth structure to support a crown. In this case, extraction and placement with a dental implant is an ideal approach. Placement of another crown on the tooth, if there is poor support, is unpredictable and will most likely not be effective in long term. thanks dr. kazemi

H. Ryan Kazemi, DMD

1 review

Bethesda Oral & Maxillofacial Surgeon

www.facialart.com

Crown Replacement with Implant

It's usually best to keep your natural teeth as long as possible. Sometimes however, teeth are so badly broken down or have such a bad crown/root ratio that it doesn't make much sense to keep them. An implant could be the least expensive and most reliable option for you long term. Today, implants have a very high success rate and it's often better and less expensive to have a successful implant rather than complicated dentistry on questionable teeth. see video

Paul D. Kantor, DDS

16 reviews

Cleveland Cosmetic Dentist

Implant to replace a failing crown.

If you have a crown that no longer has a favorable or reliable prognosis due to a compromised tooth structure than an Implant would be the ideal replacement. There are times when an existing crown might have recurrent cavity and what remains under the old crown is limited. Another possibility could be a poor ratio of crown to root. This means that the remaining support of the root by the bone is limited. Cases like this tend to happen if there is a periodontal... more

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Cant crown a tooth anymore, must remove and do an implant.

This is not uncommon and is often the best choice (implant) if you do not have 5mm of HEALTHY tooth structure left above the gumline. (Especially in teeth that have had root canal treatment in the past.

New Crown or Implant?

You have described a pretty typical problem that I see in my dental practice frequently. You have a front tooth that needed a root canal and crown. A front tooth with a root canal should also have a post placed in the tooth. The post act like rebar to reenforce the tooth and minimize the risk of tooth fracture. Unfortunately, posts also present inherent risks including root fracture and displacement of the post. Most of the time when a crown as you described is "loose" it... more

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These answers are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.