Why Keeping the Natural Tooth Matters
A tooth kept in place with root canal treatment keeps its periodontal ligament, the tissue that attaches the root to the surrounding bone and cushions it during biting. Extraction removes that attachment along with the tooth, and the bone that ligament supported starts to remodel once nothing is left to stimulate it in the same way. Keeping the natural tooth, where the tooth can be restored, preserves both structures rather than starting a replacement process from scratch.
Extraction is the right answer once a tooth genuinely cannot be restored, not as a default alternative to root canal treatment. Structural assessment below sets out the findings that make that call, and it is a finding from an examination and imaging, not a preference between two similarly viable options.
Framing the choice as root canal treatment "versus" extraction can suggest they are two equally available options for the same tooth, which is not accurate. A tooth that can still be restored is a root canal candidate; a tooth that cannot, for the structural reasons below, is not a root canal candidate regardless of preference. The comparison that is genuinely a choice is what happens after extraction, not whether to extract a tooth that could otherwise be saved.
Lifetime Cost Breakdown: Root Canal Plus Crown vs Extraction Plus Implant
Comparing root canal treatment against extraction on the first bill alone is misleading, because an extracted tooth is usually followed by a replacement, and that replacement is its own separate cost that the first invoice does not show. The full episode for root canal treatment is the canal treatment itself (ADA items 415 and 417 per canal) plus, in most cases, a crown afterwards (items 613 to 618 depending on material). The full episode for extraction is the extraction (item 311, or 322/324 if it is surgical) plus whatever replaces the missing tooth, most often a dental implant (items 684 or 688 plus 672 for the crown), a bridge, or a denture.
| Root canal plus crown | Extraction plus implant | |
|---|---|---|
| Procedure items | 415/417 (root canal, per canal), 613 to 618 (crown) | 311 or 322/324 (extraction), 684 or 688 (implant), 672 (implant crown) |
| Number of separate procedures | Two (canal treatment, then crown) | Two to three (extraction, healing, then implant placement and crown) |
| Official private price | None exists; the practice sets its own fee for each item | None exists; the practice sets its own fee for each item |
There is no official schedule of private dental fees in Australia, so this table shows the item structure a quote is built from, not a market price. Ask for a written, itemised quote for the FULL course either path involves, not just the first appointment, so the comparison is a fair one.
A bridge or a removable denture are the other two common ways to replace an extracted tooth, alongside an implant, and each has its own item structure and its own separate cost, so "extraction" alone is not a complete price comparison against root canal treatment until the replacement is specified. Whichever replacement path is chosen, it typically involves a healing period after the extraction before the permanent replacement is fitted, which is its own separate consideration compared with a root canal and crown carried out on the tooth that is already there.
| Who pays | What applies | Source |
|---|---|---|
| Children 0 to 17 | Bulk billed through the CDBS; no fee to the family even if the cap is used up, since OHST's children's service covers the gap | Services Australia; Tasmanian Department of Health |
| Concession-card adults | OHST co-payment, $47 per appointment, capped at $188 for a course of general care; complex cases may attract an additional co-payment | Tasmanian Department of Health |
| Everyone else | A private fee, itemised as above; a health fund's major dental benefit may cover part, subject to the policy's waiting period and annual limit | The clinic's own quote; the fund's Private Health Information Statement |
Structural Assessment: When a Tooth Is Truly Non-Restorable
A tooth is generally considered non-restorable when one of a small number of specific findings is present: a root fracture that extends below the point where the gum attaches to the tooth, decay that reaches below that same attachment point, or advanced bone loss around the tooth that leaves too little support even if the tooth itself were treated. Only a dentist with radiographs can confirm whether a specific tooth has reached that point; pain alone, without imaging, does not answer the question either way.
Extraction has a measurable consequence for the jawbone that root canal treatment does not, which is part of why the assessment matters. A systematic review of 20 studies measured the ridge narrowing an average of 3.79 mm horizontally and about 1.24 mm vertically on the outer surface within six months of an extraction, with around 32% of that horizontal change happening in the first three months (Tan et al., 2012, Clinical Oral Implants Research). That resorption is one of the reasons a delayed decision to replace an extracted tooth, particularly with an implant, can sometimes need a bone graft it would not have needed if the implant had been planned sooner. Root canal treatment, by keeping the root and its ligament in place, does not trigger this same process.
This is also why "when can a tooth not be saved" is a clinical question rather than a subjective one. Two teeth can hurt in a similar way and have different structural findings underneath, and a description of symptoms alone cannot substitute for an examination and imaging when a fracture, deep decay or bone loss is what actually needs to be assessed. Where the finding is genuinely one of the three above, root canal treatment is not being withheld as an option; it is not a structurally viable one for that specific tooth.
Decision Matrix: Bone Preservation vs Rapid Relief
There is no single answer that suits every patient, and the decision is genuinely a matrix of factors rather than a straightforward rule.
| Factor | Root canal treatment | Extraction | Extraction plus implant |
|---|---|---|---|
| Restorability | Only possible if the tooth is structurally sound enough | Always an option | Depends on the extraction site healing and available bone |
| Bone preservation | Keeps the root and periodontal ligament in place | Bone begins to remodel once the tooth is gone | Implant placement can help maintain some bone, but healing time is needed first |
| Number of visits | Typically one to two for the canal treatment, plus a crown visit | One | Extraction, a healing period, then implant placement and a further healing period before the crown |
| Cost and subsidy | CDBS (children), OHST co-payment (concession-card adults), private fee otherwise | CDBS (children), OHST co-payment (concession-card adults), private fee otherwise | Same payers, but an implant is a larger, separate course of treatment on top of the extraction |
| Suited to | A tooth that can still be structurally restored | A tooth that is genuinely non-restorable, or a patient who does not want to keep it | A patient who has decided on extraction and wants a fixed replacement |
Medical history and general health also feed into the decision in ways a simple cost or bone-preservation comparison does not capture. Certain medical conditions and medications can affect healing after either a root canal or an extraction, and a dentist reviewing a patient's history alongside the structural finding on the tooth is part of what makes the final recommendation individual rather than generic. Personal preference matters too: two patients with structurally similar teeth can reasonably choose differently, one prioritising keeping the natural tooth and the other preferring the shorter single visit an extraction offers, once both are aware of what each path involves afterwards.
A tooth that stops hurting on its own has usually lost its nerve rather than healed, and the underlying infection can continue in the surrounding bone even while the tooth feels fine; that is not a signal to delay a decision, since what is still possible for the tooth can change the longer treatment is put off. If facial swelling, fever, or difficulty swallowing or breathing develops alongside tooth pain, that combination needs same-day medical or dental attention; an uncomplicated toothache without swelling is urgent but does not need a hospital emergency department. No single row of the table above decides the outcome on its own, which is why the matrix is presented as a set of factors to weigh with a dentist rather than a formula with one correct answer. For the procedure itself, including what a root canal appointment involves and how a crown afterwards is decided, see root canal treatment in Tasmania.