How much does a dental filling cost? Filling a gap and rebuilding a chipped corner are three different things

How much does a dental filling cost? Filling a gap and rebuilding a chipped corner are three different things

Direct answer (within 60 words)

“Filling” can mean caries restoration, closing a tooth gap, or rebuilding a chipped corner. Their fee bases differ. Taiwan has no nationwide uniform price; city and county authorities approve fee standards, and the benefit boundary follows current NHIA notices.[F19][F23][F25][F2]

This guide is specific to Taiwan's healthcare system (National Health Insurance and Taiwan's Medical Care Act). Its institutional, fee, and verification sections cite Taiwan laws and competent-authority notices (F-Units labelled geo: TW); restoration indications and survival evidence cite international literature and guidelines (geo: universal). For care outside Taiwan, institutional sections must be read under the local rules.

Taiwan's Medical Care Act is not a law of the reader's own jurisdiction. The English rendering of that Act below follows the official English translation: https://law.moj.gov.tw/ENG/LawClass/LawAll.aspx?pcode=L0020021

Why “the cost of a filling” has no one answer

In a clinic, the word “filling” does not describe one thing.[F2]

• Caries restoration means replacing removed carious tissue with restorative material to restore form, function, and cleansability.[F4]
• Closing a tooth gap means widening tooth contours with resin where there is space or a triangular dark area between teeth. In the literature this is a tooth shape correction, not filling a carious cavity.[F6]
• Rebuilding a chipped corner means restoring the shape of a small broken part of a front tooth. Whether the fracture has pulp exposure changes the treatment category and what follows.[F12]

The three situations have different indications, item counts, and fee rules. This card does not offer a number; it shows how to separate a quotation and how to verify it.[F2]

Scope: this card explains how the cost is composed

Whether this tooth needs restoration and the clinical steps are covered by the caries-restoration card; material choice and longevity by the composite-longevity card; and eating or brushing after a filling by the aftercare card. This card only quotes those topics when necessary.[F2]

If caries is deep enough to need pulp treatment, see the root-canal cost card; if a crown is needed for protection, see the crown-cost card.[F2] Whether commercial insurance pays is determined by the policy terms. This site gives no coverage or legal opinion.[F29]

A filling quotation should be separated into at least six parts

Taiwan has no single nationwide fee list.[F19] Rather than comparing what someone else paid, separate your quotation into identifiable items.[F2]

1. Examination and imaging. Cavitation on proximal surfaces is difficult to assess visually or by tactile methods; lesion depth on radiographs is used to estimate its likelihood. For a complaint such as “a dark gap,” imaging is a basis for assessment, not an optional add-on; ask how it is listed.[F5][F2]
2. The restoration itself. Relevant variables are tooth location (anterior/posterior) and the number of surfaces. Taiwan's current NHI item list itself distinguishes anterior/posterior and one-, two-, three-, and two-proximal-surface items. Self-pay line items follow the fee standard approved where care is received and the institution's written quotation.[F26][F19][F20]
3. Whether another problem needs treatment first. Pulp involvement, symptoms, or a periodontal cause of an enlarging gap can add preliminary items.[F11][F14][F15]
4. Shape-reconstruction work. Closing a gap and rebuilding a corner recreate contour, proximal relations, and surface texture. International guidance lists tooth shape corrections alongside direct restoration of cavity Classes I–V.[F6]
5. Follow-up and re-treatment. Restorations can fail through caries or fracture. Ask how many follow-up visits are included and how repair or replacement would be charged.[F7][F9][F2]
6. Control of the underlying cause. High caries risk or periodontal conditions do not disappear because a restoration was placed. A pooled analysis found significantly higher failure risk with high caries risk and with more restored surfaces.[F7][F14]

Five variables that can change the item count

• Number of surfaces: a participant-data meta-analysis of 12 longitudinal studies with at least 5 years of follow-up found significantly higher failure risk with more restored surfaces and with high caries risk.[F7]
• Tooth location and type: a review of 34 clinical studies published from 1996 to 2011 with at least 5 years of follow-up reported annual failure rates between 1% and 3% for Class I and II posterior composite restorations, depending on tooth type and location, operator, and socioeconomic, demographic, and behavioural factors.[F8]
• Material: that review found material properties had a smaller effect on longevity. A material name is therefore not, by itself, a justification for a price; ask why it fits this tooth.[F8][F2]
• Pulp involvement: a chipped corner with or without pulp exposure is a different treatment classification. One systematic review of anterior crown-fracture management included one tooth requiring root-canal treatment.[F12][F11]
• Whether this is shape reconstruction: widening or lengthening contour is a tooth shape correction, not the same workflow as filling a carious cavity.[F6][F2]

Taiwan's system: why there is no “market price” for fillings

• There is no legally nationwide uniform price. Article 21 of Taiwan's Medical Care Act states that medical-fee standards are approved by special municipality or county (city) competent authorities. Comparing across counties or cities does not compare the same standard.[F19]
• NHI benefit items and payment standards have a statutory process. Article 41 of Taiwan's National Health Insurance Act provides that the insurer and representatives of relevant agencies, experts and scholars, insured persons, employers, and insured medical-service providers jointly formulate them for competent-authority approval and publication. Which items are covered and under what conditions therefore follow the NHIA's current notice; this card makes no item-level or individual coverage determination.[F23][F25]
• The Act expressly excludes some categories. Article 51 lists, among others, cosmetic surgery and non-trauma therapeutic orthodontics (Item 3), dentures and other non-actively therapeutic devices (Item 11), and other services or medicines approved for exclusion (Item 12). A statutory listing is not an individual-course conclusion.[F24]
• A receipt is a reconciliation tool. Article 22 requires a receipt stating fee items and amounts and prohibits violation of fee standards, overcharging, or creating unauthorised fee items.[F20]
• You may ask for an explanation. Article 81 requires information on condition, treatment policy, procedures, medication, prognosis, and possible adverse reactions.[F21]

The NHI/self-pay boundary: no determination here, but four ways to verify it

Whether something is covered and under what conditions follows current NHIA notices.[F23][F25]

1. Check the NHIA notice page for “National Health Insurance Medical Service Payment Items and Payment Standards”; it provides current payment-standard downloads and states that service-payment items can be downloaded as CSV from the open-data platform from 114.08.11.[F25]
2. For the item-by-item list, download the current open-data dataset. It includes service-item code, NHI payment points, effective start/end dates, English and Chinese item names, and remarks, with an update frequency of every 1 day.[F26]
3. Search the Chinese item name. On 2026-08-06 this site retrieved and inspected the current file supplied by the dataset: filling items were listed by tooth location and surface count. “Filling one tooth” is not one institutional item.[F26][F2]
4. Read each item's remarks. Similar composite-resin, amalgam, and glass-ionomer filling items have item-specific restrictions. One quoted rule says that after a filling on the same tooth is claimed, any repeat filling within one year for a primary tooth or one and a half years for a permanent tooth cannot be claimed by the same institution, irrespective of cavity and material. This regulates an institution's NHI claim, not a conclusion about a patient's out-of-pocket charge.[F26]

This card does not determine why a quotation for closing a gap or rebuilding a corner is self-pay. It only states the statutory exclusions and the fact that current item-list conditions are written in the remarks. The institution must explain the treatment under current rules and the clinical circumstances.[F24][F26][F23][F21]

Closing a tooth gap: identify the cause first

An enlarging or dark gap can arise from different causes, which changes what a contour restoration can and cannot address.[F2]

• Gingival recession and loss of interdental papilla (often called a black triangle): a 2025 systematic review and meta-analysis included 21 sources and 22 studies. Estimated prevalence was 81.1% for ≥1 mm recession (95% CI 73.9 to 86.7), 48.4% for ≥3 mm, and 16.2% for ≥5 mm. Periodontitis was significantly associated (OR 9.90, 95% CI 4.15 to 23.60); other factors included plaque, high frenal attachment, occlusal trauma, and smoking.[F14]
• Pathologic tooth migration from periodontal disease: this means tooth displacement after periodontal disease disrupts the balance maintaining physiologic tooth position. One cross-sectional periodontal-patient study recorded 11.4% (35/314 patients), found none in mild chronic periodontitis, and concluded prevalence rose with periodontal-disease severity.[F15]
• Proximal caries: likelihood of cavitation needs imaging-based lesion-depth assessment.[F5]
• A pre-existing interdental space: this is a shape issue, for which direct composite tooth-shape correction is within the guideline's indication scope.[F6]

Changing contour does not itself treat the cause. A 2024 review of 45 studies (7 RCTs, 2 cohort studies, 19 case series, and 17 case reports) could not perform meta-analysis because of high heterogeneity and found insufficient evidence to make clinical recommendations for black-triangle management.[F13]

For resin treatment, one 26-participant, 12-month RCT found two matrix techniques almost equally successful, depending on operator skill.[F17] A 28-participant, 2-year RCT comparing direct composite and indirect ceramic veneers for multiple gaps found statistically similar survival (overall 94.2%) but more surface staining and roughness with composite veneers. That is a maintenance difference, not a verdict that one is better.[F16][F2]

Rebuilding a chipped corner: first determine whether there is pulp exposure

The IADT 2020 guideline distinguishes uncomplicated crown fracture (enamel only, or enamel-dentine without pulp exposure) from complicated crown fracture (enamel-dentine with pulp exposure). The same guideline separately covers crown-root and root fractures; they are outside this card. This distinction can change whether pulp treatment comes first and therefore the item count.[F12][F2]

For an enamel-only fracture, the guideline records that an available fragment can be bonded back; depending on fracture extent and location, edges may be smoothed or a composite-resin restoration placed. Deeper fractures involving dentine or pulp have separate management tables; a dentist must assess the fracture extent.[F12]

• Fragment reattachment: a 2024 systematic review and meta-analysis of 6 papers reported overall fragment loss of 20% (95% CI 13% to 30%). Compared with restoration loss, risk ratios were 2.21 (95% CI 1.52 to 3.21) for uncomplicated and 2.54 (95% CI 1.35 to 4.79) for complicated crown fractures. The authors found fragment loss risk higher than composite-restoration loss, with very low certainty for all outcomes.[F10]
• Distribution of approaches: a 2025 review included 10 case reports, 4 case series, and 2 retrospective studies. Fragment reattachment was used in 63% of included articles and direct composite restoration in 26%; the authors reported higher survival and better outcomes for composite, while choice also depended on fragment availability, age, and finances. This low-level case-report/case-series evidence is not a definitive efficacy comparison.[F11]
• Anterior direct-composite longevity is highly dispersed: a systematic review evaluated 75,637 restorations and reported annual failure from 0% to 27.11%; Class III had lower failure than alternatives and fracture was the main cause. That extreme range cannot predict an individual tooth.[F9][F2]

Four practical checks for the quotation

1. Start with the NHIA's current payment-standard notice.[F25]
2. Download the current open-data item dataset and search Chinese item names; the institution must still explain applicability under current rules and clinical circumstances.[F26][F23]
3. For self-pay items, return to the fee standard approved in the county or city where you receive care. A verified example is Taipei City Department of Health's “Taipei City Medical Institution Dental Fee Standard Table” (approved 1090117); other local health bureaux have their own notices.[F27]
4. Do not use the NHIA medical-device price-comparison website to look up dentistry: both query tracks had no dental category, so dental self-pay items cannot be found there.[F28]

Ask for an itemised written quotation. After receiving the treatment plan, quotation, and receipt, reconcile their item lists and ask about any mismatch.[F20][F21]

Risks and limitations

Restorative treatment has risks and limits; whether they apply requires individual dental assessment.

• Restorations can fail; principal failure reasons were caries and fracture, with fracture the main reason in anterior direct-composite restoration.[F7][F9]
• More restored surfaces were associated with significantly higher failure risk.[F7]
• A gap can relate to gingival recession, periodontal conditions, or proximal lesions; restoring contour does not resolve the cause.[F14][F15][F5]
• Reattached fragments can be lost again: 20% overall (95% CI 13% to 30%) in the cited review, with very low-certainty evidence.[F10]
• Esthetic resin restoration may need maintenance for more staining and roughness.[F16]
• Evidence for managing black triangles is insufficient for clinical recommendations.[F13]
• A chipped corner can involve pulp exposure, changing the treatment classification; the cited review also included a tooth that needed root-canal treatment.[F12][F11]
• Article 81 of Taiwan's Medical Care Act supports asking for explanation of condition, treatment policy, procedures, medication, prognosis, and possible adverse reactions.[F21]

Pre-visit checklist: eight questions about a filling quotation

1. Is this caries restoration, closing a gap, or rebuilding a chipped corner?[F2][F6]
2. How many surfaces, and is it an anterior or posterior tooth? Which item is being quoted?[F7][F26]
3. Which items are NHI and which are self-pay? Can I have an itemised written self-pay quotation?[F23][F20]
4. Is an X-ray needed, why for this tooth, and what information would be missing without it?[F5]
5. What caused the gap, and if gingival or periodontal factors are involved, how will the cause be assessed?[F14][F15]
6. Is the chipped tooth exposed to the pulp, and what additional items could follow?[F12][F11]
7. If I brought the fragment, what are the respective benefits, limits, and repeat-loss possibilities of reattachment and direct composite reconstruction?[F10][F11]
8. If it chips or falls out later, how are repair and replacement charged, and will the receipt state item and amount?[F8][F20][F26]

Every clinical statement in this article is mapped line by line to its cited source (see the sources and evidence chain below). It has not been clinically reviewed by a licensed practitioner. This is health information, not individual advice; assessment by a clinician is required.