| What happens | The inflamed or necrotic pulp is removed, the canals are shaped and irrigated, then filled with gutta-percha and sealer. A crown follows to protect the tooth. | The tooth comes out, the socket is usually grafted, and after healing a titanium implant is placed and later restored with an abutment and crown. | The tooth is removed and the two adjacent teeth are prepared for crowns that carry a false tooth between them. | The tooth is removed and nothing replaces it. |
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| Visits and timeline | 1 to 2 visits for the root canal, 2 more for the crown. About 3 to 5 weeks end to end. | 4 to 6 visits. Expect 4 to 9 months from extraction to final crown while osseointegration happens. | 2 to 3 visits over 3 to 6 weeks once the gum has healed. | 1 visit, then a healing check. |
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| Keeps the natural tooth | Yes. Root, periodontal ligament and bone all stay. | No. | No. | No. |
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| Effect on the bone | The socket keeps its ridge. No graft needed. | Socket grafting limits the ridge collapse that follows an extraction. The implant then loads the bone and helps maintain it. | The ridge under the false tooth resorbs over time. Nothing is loading it. | The ridge narrows most in the first 6 months. Grafting at the time of extraction keeps the option of an implant open later. |
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| Neighbouring teeth | Untouched. | Untouched. | Both are cut down permanently, even if they were healthy. | Teeth drift toward the gap and the opposing tooth over-erupts, which can change the bite. |
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| Typical survival | Published 10-year survival for a root-treated, crowned tooth sits around 85 to 90 percent. | Reported 10-year implant survival is commonly 90 to 95 percent, with peri-implantitis the main long-term risk. | Around 10 years on average for a conventional bridge; failures usually start as decay on an abutment tooth. | Not applicable. The consequences build slowly over years. |
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| Sample fee range | $1,150 to $1,900 for the root canal plus $1,250 to $1,700 for the crown | $1,800 to $2,600 for the implant plus $1,600 to $2,400 for abutment and crown | $3,300 to $5,100 for three units | $210 to $450 for a simple extraction, $350 to $900 surgical |
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