Will I regret getting an all-ceramic crown? What are the drawbacks? Matching online complaints to the literature, one category at a time

The direct answer in 60 words

Documented drawbacks of all-ceramic crowns include irreversible tooth reduction, possible chipping or loss of retention, greater wear of opposing natural enamel, and caries still occurring beneath the crown. Regret often stems from these points not being explained in advance.⁴⁷⁹²¹

If the colour seems wrong, your bite feels odd, or there is a line at your gum after the crown is fitted, return to the dentist for an examination and an explanation of the condition, procedure, and prognosis.⁴¹⁵²¹

Geographic scope: This guide is specific to Taiwan's healthcare system (National Health Insurance and Taiwan's Medical Care Act). The sections on coverage, fee approval, and disclosure duties apply only in Taiwan. The medical-evidence sections cite international literature and report results at the study-population level; they cannot predict any individual treatment result.²

Why this article does not analyse forum posts

People searching for “regretting an all-ceramic crown” have often already read dozens of posts and are left even less sure whom to believe.

Forum posts contain no clinical record, images, or follow-up record. Nor can they establish the poster’s starting dental condition, the design used, or the length of follow-up. That means two things are true at once: posts cannot be cited as medical facts, and neither can they simply be declared false—neither approach has verifiable support.²

This article instead matches recurrent types of complaints with drawbacks and complications that peer-reviewed literature has documented, studied with a research design, and followed over time, laying them out category by category. After reading, you do not have to decide which post is credible; you can ask for answers that apply to your own situation in the dental chair.²

It is also important to state what this article does not say: this site does not write “if you choose the right dentist (or material), you will not regret it.” That would be an outcome promise, which the literature cannot support and which does not fit the role of health education.²²²

Division of scope first: material survival is in another card; this article covers drawbacks and expectation gaps

Five-year survival of single crowns by material, and comparisons among materials, are the canonical content of the crown-cost card. This article retains only one summary: a 2026 systematic review and meta-analysis concluded that lithium-disilicate and zirconia-based all-ceramic single crowns can achieve five-year survival comparable to metal-ceramic single crowns.¹⁶ For full figures and material-specific detail, see the crown-cost card in the internal citation chain at the end; this article does not repeat them.²

Read that summary within its limits. It concerns lithium disilicate and zirconia-based all-ceramic single crowns, at five years, and at the population level.¹⁶ It does not cover other ceramic types and is not a prediction for your own tooth. Thus the blanket claim “all-ceramic crowns are certainly not durable” is not supported by these data; but that does not mean there are no drawbacks. Drawbacks are a separate set of facts, addressed below.

Drawback 1: a ring of tooth structure must be removed and cannot be restored

This is the irreversible part of an all-ceramic crown, and it will not appear on a quotation.

A 2026 systematic review that included 23 studies states in its objective that crown preparation causes irreversible loss of dental tissue and affects long-term restoration success. In that review, 6 studies directly quantified removed tooth structure or remaining dentine thickness using gravimetric analysis, micro-CT, digital volumetric analysis, or related methods.⁷

Put simply: you are exchanging not only money, but also a ring of natural tooth structure that cannot be put back. If the crown needs replacement later, the starting point cannot return to the original tooth. This is not itself a complication; it is an inherent trade-off of the procedure. It should therefore be explained before consent, rather than discovered afterwards.⁷²¹

Drawback 2: ceramic chipping, framework fracture, and loss of retention

A 2021 overview of systematic reviews pooled 38 systematic reviews, based on 128 in-vivo studies of approximately 10,000 zirconia restorations, and ranked technical complications by frequency. Chipping was first, followed by framework fracture, loss of retention, marginal discrepancy or discoloration, occlusal roughness, and abutment or screw loosening. The aesthetic complication recorded by that overview was colour mismatch.⁴

How common is chipping? Care is needed here: the available meta-analysis does not answer that question. A 2022 systematic review and meta-analysis including 52 studies calculated the relative risk between two failure types. For tooth-supported veneered zirconia single crowns, at 1 to 3 years of follow-up, the relative risk of fracture or chipping relative to loss of retention was 3.95 (95% confidence interval 1.18 to 13.23, p = 0.03); at 4 to 6 years, it was 5.44 (95% confidence interval 1.41 to 20.92, p = 0.01). Its clinical-implications section interprets this as a roughly fourfold higher chance of fracture or chipping than loss of retention in tooth-supported veneered zirconia restorations.⁵

This number is very easy to misread, so read it closely: 3.95 is not the “incidence of chipping.” It is the relative risk of chipping versus loss of retention. It answers which of two failure types is more common, not the proportion of people in whom chipping occurs. The same study also reported that, considering framework fracture alone, relative risks did not differ significantly across follow-up periods (p > 0.05); most of the 52 included studies had an unclear risk of bias.⁵

Could you simply avoid a veneering layer? The 2021 overview’s conclusion points in that direction: the major technical problem of veneering fracture may be overcome through design or fabrication changes and use of monolithic restorations, but reviews of clinical studies on this subject remain rare.⁴ Clinical data for monolithic restorations are indeed still short: a 2022 systematic review and meta-analysis included 9 articles, 594 participants, and 1,657 single-tooth restorations; mean exposure was only 1.07 years, follow-up ranged from 0.3 to 2.1 years, and between-study heterogeneity was high (I² = 93.74%).⁶ Data followed for just over a year cannot answer what happens at ten years. “Limited long-term data (>5 years)” is also one methodological limitation identified by a 2025 overview for lithium-disilicate systems.¹⁷

Drawback 3: the opposing natural tooth can wear down

Online, this complaint is often described as “the tooth on the other side was damaged after I got a crown.” The literature does contain corresponding measurements.

• Quantified evidence (follow-up within 2 years): a 2024 systematic review and network meta-analysis selected 7 clinical studies from 5,697 articles, covering 261 crowns and 177 subjects. It compared mean vertical loss of opposing enamel within 24 months after permanent crown placement for three materials. Metal-ceramic and zirconia caused significantly greater opposing-enamel wear, respectively 82.5 µm (54.4 to 110.6) and 40.1 µm (22.2 to 58.0) more than the natural-tooth opposing group. Lithium disilicate showed only 5.0 µm more, with an interval from −48.2 to 58.1 that crossed 0, so it was not statistically significant.⁸
• A second review ranked the materials differently: a 2026 systematic review and meta-analysis included 9 clinical studies (5 randomised controlled trials and 4 prospective studies), 203 patients, and 6 to 24 months of follow-up. It concluded that ceramic materials generally cause more wear of opposing posterior natural enamel than enamel-to-enamel contact. Yet it placed monolithic zirconia and lithium disilicate on the higher-wear side, while metal-ceramic with feldspathic veneering appeared more conservative for posterior enamel. In its meta-analysis, heterogeneity was I² 94% for zirconia and I² 2% for lithium disilicate; because the abstract did not specify the unit for its mean differences, this article does not cite those values.⁹
• A small sample followed for three years: a 2026 clinical study began with 32 patients, of whom 10 met the inclusion criteria, and compared intraoral scans at baseline and 36 months. Mean maximum vertical loss was 216 µm (standard deviation ±113 µm) for teeth opposing zirconia crowns and 38 µm (standard deviation ±14 µm) for the zirconia crowns themselves. The authors concluded that monolithic zirconia crowns caused about twice the opposing-enamel wear of natural tooth contacts, while the amount was comparable with other dental ceramic materials.¹⁰

How to read these three studies: their disagreement about which material wears more is itself part of the answer. Current clinical studies are small, short, and use different measurements, so the ranking has not converged. Their shared direction is that ceramic materials generally cause more wear of opposing posterior natural enamel than natural-tooth contact.⁹ But not every material reached statistical significance in every study: the lithium-disilicate interval crossed 0 in the 2024 study⁸, and the feldspathic-ceramic group had p = 0.06 in the 2026 study⁹. Zirconia was the higher-wear material in all three studies.⁸⁹¹⁰ The 2021 overview listed the impact of zirconia restorations on the masticatory system as unresolved.⁴ Questions to ask in the dental chair include: Is my opposing tooth natural? How will the bite be adjusted? How often should I return to have the biting surfaces checked?²¹

Drawback 4: teeth beneath and at the margins of a crown can still decay

The expectation that “once a crown is placed, I no longer need to worry about that tooth” is not supported by the literature. The 2021 overview lists biological complications of zirconia restorations including caries, endodontic complications, tooth fracture, periodontal disease, abrasion and attrition, persisting pain, and high sensitivity.⁴

Crown-margin location can affect the gingiva. A review commissioned by the 2017 World Workshop reported three points: when a restoration margin lies within the junctional epithelium and supracrestal connective-tissue attachment, it may be associated with gingival inflammation and potentially recession; a margin within the gingival sulcus does not cause gingivitis if a patient adheres to self-performed plaque control and periodic maintenance; and hypersensitivity reactions to dental materials are documented.¹⁵

This corresponds to two common online descriptions: “the edge of the crown turned black” and “my gums receded and exposed a line.” The literature supports that margin location and cleaning/maintenance affect gingival response, and that marginal discrepancy or discoloration is listed as a technical complication.⁴¹⁵ Whether one person’s dark line is due to material, margin location, gingival recession, or recurrent caries requires an in-person dental examination; this article cannot assign a cause remotely.

Drawback 5: pulpal symptoms can still occur after treatment

If the tooth prepared as an abutment is still vital, its pulpal status is not settled once the crown is finished.

A 2022 systematic review and meta-analysis, which retrieved 10,075 records electronically and selected 20 studies for systematic review and 7 for meta-analysis, estimated clinical and radiographic success of vital teeth used as abutments for fixed prostheses at 92% to 98% over follow-up periods ranging from 5 to 20 years.¹⁴ In other words, some abutment teeth in these studies developed pulpal or periapical disease during follow-up. The review included only observational studies, had high heterogeneity, and called for higher-quality randomised clinical trials.¹⁴

One useful question in the dental chair is: if this tooth later needs root-canal treatment, how would treatment and cost be handled? This is a matter to be agreed with each clinic and should be obtained in writing (this is a care-communication suggestion, not a literature conclusion and does not assume any particular handling).²²⁰²¹

“I grind my teeth—does that mean I cannot get an all-ceramic crown?” What the evidence says so far

This is a frequent question in “regret” searches, and it is easy for opposing claims to talk past each other. The literature currently says the following:

• A 2018 systematic review and meta-analysis included 8 studies in qualitative synthesis, 5 in meta-analysis; of those 8, 3 had moderate and 5 high risk of bias. Looking only at anterior ceramic veneers, sleep bruxism had a hazard ratio of 7.74 (95% confidence interval 2.50 to 23.95) and an odds ratio of 2.52 (95% confidence interval 1.24 to 5.12). But when other types of ceramic restorations were included, the overall odds ratio was 1.10 (95% confidence interval 0.43 to 2.8), which neither supported nor refuted an association. Overall evidence quality was very low under GRADE. The authors concluded that, within the review’s limitations, pooled results did not support an association between sleep bruxism and increased odds of ceramic-restoration failure.¹¹
• Notice the population to which 7.74 applies: it comes from the anterior ceramic-veneer subgroup. Veneers and all-ceramic crowns are different types of restoration; applying that number to all-ceramic crowns would extrapolate across populations.¹¹
• A 2026 clinical trial assessed 109 patients requiring a single molar crown for sleep bruxism with a questionnaire, clinical examination, and a portable electromyography device. Crown material was randomised, then participants were divided by bruxism status into four groups: lithium disilicate with bruxism, 27 people; lithium disilicate without bruxism, 21; zirconia with bruxism, 21; and zirconia without bruxism, 24. Protective occlusal guards were not allowed during the trial. During three years of observation, no group had a technical complication. Success was 81.5% versus 95.2% for lithium disilicate with versus without bruxism (p = 0.211), and 85.7% versus 95.8% for zirconia with versus without bruxism (p = 0.326). The authors concluded that over the 3-year observation period, sleep bruxism showed no detectable impact on technical-complication incidence, survival, or success of monolithic lithium-disilicate or zirconia molar crowns.¹²
• An independent interpretation points in the same direction: a 2026 evidence-based dentistry commentary stated that the trial defined survival as the restoration remaining in place without replacement and success as the restoration having no biological or technical complication. It found no statistically significant differences between bruxism and non-bruxism groups or between the two materials.¹³

The honest reading: current evidence does not support the simplified claim “if you grind your teeth, you will certainly break an all-ceramic crown.”¹¹¹²¹³ But it also does not support “bruxism has no effect.” The reasons matter: the upper confidence limit of the 2018 overall odds ratio was 2.8, so the available data still cannot exclude a possibility of nearly tripled failure odds¹¹. In the 2026 trial, each group had only 21 to 27 people and was followed for only 3 years, making moderate differences hard to detect; success was numerically lower in the bruxism groups (81.5% versus 95.2%, and 85.7% versus 95.8%).¹² “No difference was detected” and “there is no difference” are not the same. This article does not turn the former into the latter. The question to ask is not “can I do it?” but “given my bruxism, how should this design be adjusted, should an occlusal guard be used, and how often should the bite be reviewed?” A dentist must assess this for your own situation.²¹

There is not only one route: reducing every surface for a full crown

If your hesitation comes from Drawback 1, irreversible tooth reduction, ask whether an approach preserving more tooth structure is available. The two approaches below have clinical data, but each has its own eligible population; they are not freely interchangeable options.

• Endocrown (an all-ceramic restoration design compared in the literature with a conventional crown with or without a post and core): a 2025 systematic review and meta-analysis compared all-ceramic endocrowns with conventional all-ceramic crowns, with or without post and cores, for structurally compromised teeth. One pooled analysis included 2 clinical studies, 277 endocrowns, and 246 crowns followed for 7 years. The pooled risk ratio for success was 0.93 (95% confidence interval 0.69 to 1.27, p = 0.66), with no significant difference. The authors concluded that endocrowns have clinical performance comparable to conventional crowns for structurally compromised posterior teeth.¹⁸
• Partial-coverage restorations: a 2025 systematic review and meta-analysis included 6 randomised controlled trials. Three-year survival was 89.3% (95% confidence interval 76.4 to 95.3) for resin-matrix ceramic and 93.7% (95% confidence interval 83.7 to 97.7) for lithium disilicate. The same paper explicitly stated that long-term performance of posterior partial-coverage restorations remains uncertain.¹⁹ A fuller comparison of full crowns and onlays is in the crown-cost card, and is not repeated here.²

Whether either option applies depends on how much tooth structure remains, the bite, and the tooth’s position. It varies from person to person and requires a dentist’s assessment. The sole purpose of listing them here is to let you know that “if I proceed, every surface must be reduced” is not the only question you can ask.¹⁸¹⁹²¹

Cost and expectation gaps (Taiwan system)

Some “regret” is not actually about the tooth. It is about what a person thought they were buying versus what was actually received.

• All-ceramic crowns are on the self-pay side: Article 51, Paragraph 11 of Taiwan's National Health Insurance Act lists items outside coverage, including “dentures, artificial eyes, eyeglasses, hearing aids, wheelchairs, crutches, and other apparatus not intended for active treatment.” Crowns fall on this side.²³ Whether other care in the same course, such as root-canal treatment, is covered should be checked against current National Health Insurance Administration notices; do not infer it from online claims.
• There is no nationwide fixed price: Article 21 of Taiwan's Medical Care Act provides that standards for fees charged by medical institutions are approved by the competent authority of the special municipality or county (city).²⁰ To check fees, return to the city or county where you seek care. A verified example is the dental fee-standard table announced by the Taipei City Department of Health (approved 1090117).²⁵
• There is a verification trap: neither of the two search routes in the National Health Insurance Administration's “Medical Materials Price Comparison Website” has dental categories. All-ceramic crowns, dentures, and implants cannot be found there; do not treat it as a way to verify dental fees.²⁴
• You have a right to be informed: Article 81 of Taiwan's Medical Care Act requires medical institutions to inform patients of their condition, treatment plan, procedures, medication, prognosis, and possible adverse reactions.²¹ An all-ceramic crown is an irreversible procedure⁷, so this provision should be used fully.

This article gives no monetary amount. How to break down and check a quotation item by item is covered in the crown-cost card.²

Risk factors (what to know before treatment)

An all-ceramic crown requires removal of some tooth structure that cannot be restored. It is a medical procedure with risks; indications and contraindications must be assessed by a dentist for the individual situation.

• Irreversible loss of tooth structure: crown preparation causes dental-tissue loss that cannot be restored and affects long-term restoration success.⁷
• Technical complications are documented: chipping, framework fracture, loss of retention, marginal discrepancy or discoloration, and occlusal roughness are all recorded. For tooth-supported veneered zirconia single crowns, fracture or chipping is about four times as likely as loss of retention.⁴⁵
• Biological complications: caries, pulpal or endodontic complications, tooth fracture, periodontal disease, persisting pain, and high sensitivity are all documented.⁴ For vital teeth used as abutments for fixed prostheses, clinical and radiographic success over 5 to 20 years was 92% to 98%.¹⁴
• Gingival response: a restoration margin within the junctional epithelium and supracrestal connective-tissue attachment may be associated with gingival inflammation and potentially recession. A margin in the gingival sulcus does not cause gingivitis when the patient follows self-cleaning and periodic-maintenance requirements.¹⁵
• Material hypersensitivity: reactions to dental materials are documented. Tell the dentist before treatment if you have a history of material allergy.¹⁵
• Wear of opposing teeth: ceramic materials generally cause greater wear of opposing posterior natural enamel than natural-tooth contact; zirconia was on the higher-wear side in all three studies. But material rankings differed between studies, and follow-up was mostly within 2 years.⁸⁹¹⁰
• How much weight these numbers can carry: every percentage and interval cited here is an estimate for a research population over a specified follow-up period. Eligibility criteria, follow-up length, and failure definitions differ; using them to predict your own tooth would overextend them. Long-term data beyond 5 years are also limited in this area, so a 2025 overview recommends that clinicians communicate both short- to medium-term benefits and uncertainty about long-term performance.¹⁷ Actual treatment and outcomes vary by person and require a dentist’s assessment.

Pre-visit checklist: seven questions when an all-ceramic crown is suggested

1. How much of my tooth will be reduced? Is there a way to preserve more tooth structure, such as partial coverage or an endocrown? Why would it not apply to me?⁷¹⁸¹⁹
2. Is this crown monolithic or veneered? Why is this design being recommended? (For veneered restorations, fracture or chipping is more common than loss of retention.)⁵
3. Is my opposing tooth a natural tooth or a prosthesis? How will the bite be adjusted, and how often should I return to have the biting surface checked?⁸⁹¹⁰
4. Where will the crown margin be placed—above the gum, level with it, or below it? Why there, and how should I clean it?¹⁵
5. Is the pulp in this tooth vital or previously root-canalled? If the tooth later needs root-canal treatment, how would treatment and cost be handled?¹⁴²⁰
6. If chipping, loss of retention, or marginal discoloration occurs, where are the handling arrangements and conditions written? (This is a matter to be agreed between patient and clinic; it depends on each clinic’s terms, so obtain it in writing.)²
7. Please explain the risks, prognosis, and possible adverse reactions in this treatment plan. This falls within the disclosure scope of Article 81 of Taiwan's Medical Care Act.²¹

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.