¿Los adultos se arrepienten de haberse extraído profilácticamente las muelas del juicio asintomáticas — o de conservarlas y vigilar?
Si actúas
Extraerse profilácticamente las muelas del juicio asintomáticas
36%
Si no actúas
Conservar las muelas del juicio asintomáticas y vigilarlas
64%
Porcentaje de quienes luego se arrepienten de cada elección. Las barras y el registro completo aparecen abajo.
Salud
Última revisión 2026-07-14
Calidad de la evidencia 4.25/5
Puntuación de revisión en ocho dimensiones según la
rúbrica de calidad
. Cada dimensión puntuada de 1 a 5.
D1 Verificación de fuentes
5/5
D2 Autoridad e independencia de las fuentes
4/5
D3 Precisión de la tasa de arrepentimiento
3/5
D4 Comparabilidad de las fuentes
5/5
D5 Patrón de Gilovich
5/5
D6 Calidad de la prosa
4/5
D7 Completitud de las advertencias
4/5
D8 Calidad de la muestra
4/5
Media4.25/5
Datos sustitutos — no existe ninguna encuesta directa sobre el arrepentimiento para esta decisión. Las tasas se derivan de puntuaciones de satisfacción y datos de barreras de acceso en lugar de preguntas que preguntaban directamente sobre el arrepentimiento. Ver advertencias más abajo.
Arrepentimiento por acción
Extraerse profilácticamente las muelas del juicio asintomáticas
36%
~36% de las muelas del juicio extraídas profilácticamente no habrían necesitado extracción en 18 años — una operación (con su ~4% de complicaciones) hecha sobre un diente que nunca dio problemas (indicador indirecto de cirugía innecesaria)
Adultos jóvenes con terceros molares asintomáticos; complemento de la tasa acumulada de extracción a 18 años
en un horizonte de 18 años
Arrepentimiento por inacción
Conservar las muelas del juicio asintomáticas y vigilarlas
64%
~64% de las muelas del juicio asintomáticas conservadas acaban extraídas de todos modos en 18 años — vigilar suele aplazar la operación en lugar de evitarla (indicador indirecto de extracción diferida)
Adultos jóvenes que conservan terceros molares asintomáticos; tasa anclada en la cifra acumulada de los siete estudios agrupados por Bouloux 2015 (cada estudio ≥50 sujetos), no en una sola cohorte
acumulado a 18 años de seguimiento
% que se arrepienten de esta elección
Extraerse profilácticamente las muelas del juicio asintomáticasConservar las muelas del juicio asintomáticas y vigilarlas
36%64%
inaction dominates — Domina la inacción — la mayoría se arrepiente de no actuar.
Decisiones relacionadas
Decisiones semánticamente similares — mismo terreno, distintos compromisos.
Keeping asymptomatic wisdom teeth and watching is the choice that most often fails to close the matter: across seven longitudinal studies, about 64% of retained symptom-free third molars are extracted within 18 years, at a steady rate of roughly 3% per year (Bouloux et al., 2015). A same-era 18-year cohort found 73% of the teeth that were unerupted at baseline came out before follow-up ended (Ventä et al., 2004), though that study’s follow-up window overlaps the period Bouloux pooled, so the two are better read as consistent than as independent. The reasons are ordinary: caries, gum disease, later inflammation, and part of that 64% is care that was simply timed to need rather than regretted. The practical upshot is that watching usually defers the operation rather than avoiding it, and the extraction then falls later in life rather than in early adulthood.
Removing the tooth up front does not escape regret either; it relocates it. Because prophylactic removal is itself an extraction, its regret falls on the mirror-image group: the roughly 36% of removed teeth that would have stayed trouble-free over the same 18 years, operated on for nothing. Every one of those extractions carries about a 4.2% chance of a complication, overwhelmingly dry socket, with infection and jaw-joint symptoms far behind (Chen et al., 2021). The Cochrane review found only two studies and 493 people bearing on whether disease-free impacted wisdom teeth should come out at all, and rated the evidence very low certainty (Ghaeminia et al., 2020). NICE went further in 2000, concluding that prophylactic removal of pathology-free impacted third molars should be discontinued in the NHS — a position US practice frequently sets aside.
The two figures are close on purpose, because the decision is close. Both come from the same fact: about two-thirds of these teeth eventually need removal and about a third do not. Watch, and you carry a 64% chance of the surgery you were trying to avoid; remove, and you carry a 36% chance the surgery was needless. Severity runs opposite to frequency — the deferred operation is common but often appropriate, while the unnecessary one is rarer but incurred up front against a benefit the evidence cannot show. What survives the symmetry is a modest lean, consistent with Gilovich and Medvec’s temporal asymmetry: over a long horizon, more people end up back in the chair than are spared it. Whether that reads as regret or as a reasonable bet that mostly postponed a minor operation is the judgement the evidence declines to settle.
Fuentes: acción
Registro de evidencia
Cada número a continuación es lo que reportó cada fuente, con la cita textual en la que nos basamos y cómo llegamos a nuestra cifra. Haz clic en cualquier enlace para verificarlo directamente.
[1]Journal of Oral and Maxillofacial Surgery (Bouloux et al. 2015) — What is the risk of future extraction of asymptomatic third molars? A systematic review
Revisado por pares
Seven longitudinal studies, follow-up 1 to 18 years: cumulative extraction incidence rose from 5% at 1 year to 64% at 18 years — leaving ~36% of retained asymptomatic third molars still not extracted at 18 years
Extracto
“"The mean incidence rate for M3 extraction of previously asymptomatic M3s was 3.0% annually (range 1 to 9%). The cumulative incidence rate for M3 removal ranged from 5% at 1 year to 64% at 18 years. ... The cumulative risk of M3 extraction for young adults with asymptomatic M3s is sufficiently high to warrant its consideration when reviewing the risks and benefits of M3 retention as a management strategy."
”
Datos de la fuente de
2015-05-01
Accedido
2026-07-14
Cálculo
The action-side proxy is the mirror image of the inaction figure. If 64% of retained asymptomatic third molars are extracted by 18 years, then roughly 36% are not — those teeth would have stayed trouble-free over that horizon, so removing them prophylactically was, in hindsight, an operation for nothing. We anchor the action proxy at 0.36, the complement of Bouloux's 64% cumulative extraction rate. This is an "unnecessary-surgery" proxy, not a regret survey, and 0.36 is an upper bound: over a full lifetime the never-needed fraction shrinks, because some of that 36% would eventually have required extraction after 18 years. Using the same dataset for both sides keeps the two proxies on one axis.
[2]National Institute for Health and Care Excellence (NICE), UK — Guidance on the extraction of wisdom teeth (Technology appraisal guidance TA1)
Informe gubernamental
National guidance: the practice of prophylactic removal of pathology-free impacted third molars should be discontinued in the NHS; surgery limited to teeth with evidence of pathology
Extracto
“"The practice of prophylactic removal of pathology-free impacted third molars should be discontinued in the NHS. ... Surgical removal of impacted third molars should be limited to patients with evidence of pathology. ... A first episode of pericoronitis, unless particularly severe, should not be considered an indication for surgery."
”
Datos de la fuente de
2000-03-27
Accedido
2026-07-14
Cálculo
The policy basis for treating prophylactic removal as regret-prone. A national appraisal body concluded that routinely removing symptom-free impacted third molars should stop, because the benefit is unproven while every extraction carries surgical risk. US practice frequently diverges, which is why this decision is genuinely contested. Establishes the frame; not a rate.
[3]PLOS ONE (Chen, Chi & Lee 2021) — Revisit incidence of complications after impacted mandibular third molar extraction: A nationwide population-based cohort study↗ 1 other entry
Revisado por pares
“"The overall cumulative complication rate for iLM3 extraction was 4.2%. ... The incidence of DS was the highest (3.66%) ... the incidence of SSI was very low (0.17%) ... about 4 out of 1000 patients had temporomandibular joint symptoms and sought treatment (0.41%)."
”
Datos de la fuente de
2021-02-22
Accedido
2026-07-14
Cálculo
Quantifies what an unnecessary extraction costs. Every prophylactic removal — including the ~36% that were never needed — runs about a 4.2% chance of a complication, dry socket being the commonest and generally self-limiting. Permanent nerve injury is rarer, a few per thousand. Note the population: this cohort is all impacted lower-molar extractions, mixed symptomatic and asymptomatic, not solely prophylactic cases, so the 4.2% is a general operative-risk figure, not a rate specific to the unnecessary subset. Supplies the severity of the action harm, not its frequency.
[4]Cochrane Database of Systematic Reviews (Ghaeminia et al. 2020, CD003879) — Surgical removal versus retention for the management of asymptomatic disease-free impacted wisdom teeth
Revisado por pares
Two included studies (one RCT with 77 adolescent participants analysed; one prospective cohort of 416 healthy males aged 24–84): only low- to very-low-certainty evidence; insufficient to determine whether asymptomatic disease-free impacted wisdom teeth should be removed or retained
Extracto
“"This review update includes the same two studies that were identified in our previous version of the review ... We found only low- to very-low-certainty evidence of the effects of removal compared with retention ... Insufficient evidence is available to determine whether asymptomatic disease-free impacted wisdom teeth should be removed or retained."
”
Datos de la fuente de
2020-05-04
Accedido
2026-07-14
Cálculo
The evidentiary weight behind the action-side regret framing. The benefit a prophylactic extraction is meant to buy — preventing future disease — cannot be demonstrated: the whole randomised-plus-cohort evidence base is two studies and 493 participants, rated low to very low certainty. This is why removing a symptom-free tooth is treated as regret-prone rather than clearly protective. Establishes the strength of the evidence, not a rate.
Fuentes: inacción
Registro de evidencia
Cada número a continuación es lo que reportó cada fuente, con la cita textual en la que nos basamos y cómo llegamos a nuestra cifra. Haz clic en cualquier enlace para verificarlo directamente.
[1]Journal of Oral and Maxillofacial Surgery (Bouloux et al. 2015) — What is the risk of future extraction of asymptomatic third molars? A systematic review
Revisado por pares
Seven longitudinal studies, follow-up 1 to 18 years: mean extraction incidence 3.0% per year (range 1–9%); cumulative extraction incidence rose from 5% at 1 year to 64% at 18 years
Extracto
“"The mean incidence rate for M3 extraction of previously asymptomatic M3s was 3.0% annually (range 1 to 9%). The cumulative incidence rate for M3 removal ranged from 5% at 1 year to 64% at 18 years. ... The cumulative risk of M3 extraction for young adults with asymptomatic M3s is sufficiently high to warrant its consideration when reviewing the risks and benefits of M3 retention as a management strategy."
”
Datos de la fuente de
2015-05-01
Accedido
2026-07-14
Cálculo
The inaction-side proxy. Retained asymptomatic third molars are extracted at about 3% per year, so the cumulative share removed climbs to 64% by 18 years. We anchor the inaction proxy at 0.64, taken directly from this figure. The regret construct: watching does not usually spare the surgery, it defers it, and the extraction then happens later in life. (Conventional oral-surgery teaching holds that later extraction in an older patient is harder, though Chen 2021 — cited below — found no age association with complications in its own cohort, so we do not lean on that claim.) This is a "needed extraction anyway" rate, not a survey asking whether people regret having waited, and part of that 64% is appropriately-timed care rather than a mistake.
[2]Journal of Oral and Maxillofacial Surgery (Ventä, Ylipaavalniemi & Turtola 2004) — Clinical outcome of third molars in adults followed during 18 years
Revisado por pares
118 subjects followed from mean age 20 to 39: 73% of initially unerupted third molars and 64% of initially partially erupted third molars were removed during the 18-year follow-up (maxilla and mandible combined)
Extracto
“"Most of the initially unerupted third molars were removed during the follow-up period (73%, maxilla and mandible together). ... More than half of the initially partially erupted third molars were removed during the follow-up period (64%, maxilla and mandible together)."
”
Datos de la fuente de
2004-02-01
Accedido
2026-07-14
Cálculo
A same-order-of-magnitude 18-year cohort: 118 adults tracked from a mean age of 20 to 39, most third molars unerupted at baseline ending up removed (roughly two-thirds to three-quarters over ~18 years). Treat this as consistency, not clean independent replication: Bouloux 2015 is a systematic review whose only 18-year datapoint plausibly draws on this same cohort, so we cannot confirm this is a wholly separate measurement of the 64%. Small sample; supports the direction of the inaction proxy, not an independent rate.
Advertencias
Ambos números son indicadores indirectos derivados del mismo hecho subyacente — que aproximadamente el 64% de los terceros molares asintomáticos conservados se extrae en un plazo de 18 años (Bouloux 2015; coherente con la cohorte de Ventä 2004, cuya ventana de 18 años puede solaparse con los estudios que Bouloux agrupó) — de modo que se sitúan en un mismo eje, pero ninguno es una encuesta de arrepentimiento. El 64% de la inacción es una tasa de "al final necesitaste la cirugía"; el 36% de la acción es su complemento, la proporción de dientes extraídos profilácticamente que habrían permanecido tranquilos durante el mismo horizonte, una operación hecha para nada. La comparación es deliberadamente ajustada porque la decisión es ajustada: la extracción profiláctica es en sí misma una extracción al 100%, así que vigilar nunca sale peor en el eje de "evitar la cirugía" — ofrece un ~36% de probabilidad de no necesitar nunca la operación y un ~64% de probabilidad de la operación que habrías tenido de todos modos, solo que más tarde. Por eso el delta es modesto y no desequilibrado, y por eso ningún lado gana limpiamente. La gravedad corre en sentido opuesto a la frecuencia: el daño de la acción se incurre por adelantado, en una boca más joven y más fácil de operar, a cambio de un beneficio que la revisión Cochrane (Ghaeminia 2020 — solo 493 participantes en dos estudios, certeza muy baja) no puede demostrar; el daño de la inacción es más frecuente pero a menudo es solo un aplazamiento, y parte de ese 64% es atención prestada en el momento oportuno tras enfermar realmente el diente, no un error lamentado. La cifra de acción del 36% es una cota superior por dos razones. Primero, a lo largo de la vida más dientes conservados acaban necesitando extracción, lo que reduce la proporción de los que nunca la habrían necesitado. Segundo, toma prestada la tasa de la cohorte de retención, pero los dientes efectivamente elegidos para extracción profiláctica no son una muestra aleatoria — los clínicos tienden a extraer la anatomía de mayor riesgo (impactación profunda, angulación mesioangular, contacto estrecho con el segundo molar), que es más propensa a causar problemas después. Así que la proporción de "nunca necesarios" entre los dientes que realmente se extraen probablemente esté por debajo del 36%, y este sesgo de selección hacia el tratamiento juega en contra del lado de la acción. El 4,2% de complicaciones de Chen procede de todas las extracciones de molares inferiores impactados, mezclando casos sintomáticos y asintomáticos, no solo profilácticos. Se trata de una decisión genuinamente disputada — NICE concluyó en 2000 que la extracción profiláctica de terceros molares impactados sin patología debía abandonarse en el NHS, mientras que la práctica estadounidense los extrae con frecuencia. Las poblaciones son taiwanesa, finlandesa e internacionales agrupadas, no estadounidenses. La dirección de predominio de la inacción es coherente con el marco de asimetría temporal de Gilovich y Medvec, pero aquí es estrecha y depende de cómo se pondere un aplazamiento frecuente frente a una operación innecesaria por adelantado, más rara.
