---
title: "Isotretinoin (Roaccutane) and Braces UK"
url: https://virtualconsultant.online/guides/isotretinoin-roaccutane-orthodontics-uk
description: "Roaccutane can raise root resorption risk and dry the mouth during braces treatment — here is how UK orthodontists and dermatologists manage the overlap."
updated: 2026-09-02T00:00:00Z
publisher: Virtual Consultant Online
---

Isotretinoin

Medication and Orthodontics

Root Resorption

# Isotretinoin (Roaccutane) and Orthodontic Treatment

Isotretinoin, sold as Roaccutane in the UK, can increase root resorption risk during active tooth movement and dries the mouth and lips, making braces more irritating to wear. Many patients taking it are teenagers or young adults, the same age group most likely to be mid-treatment with braces or aligners. This guide explains what the interaction means in practice, whether treatment should pause during a course, and how to coordinate care between your orthodontist and dermatologist.

[Start Photo Assessment](https://virtualconsultant.online/evaluations/quote) [Compare Costs](https://virtualconsultant.online/costs)

## What is isotretinoin and how does it work?

Isotretinoin is a synthetic retinoid — a derivative of vitamin A — that reduces sebum production, normalises skin cell turnover, and has anti-inflammatory effects in sebaceous glands. It is the most effective medical treatment for severe nodular or cystic acne and for acne that has not responded to antibiotics and topical treatments. In the UK it is prescribed under strict monitoring because of its teratogenicity (it causes severe fetal abnormalities) and its effects on mood. A standard course lasts four to six months. The mechanism relevant to orthodontics is its effect on bone metabolism: retinoids influence osteoblast and osteoclast activity, and isotretinoin in particular has been associated with altered bone remodelling — the very process upon which orthodontic tooth movement depends.

## Root resorption: the key concern

Orthodontic tooth movement involves controlled bone resorption on the pressure side of a tooth root and bone deposition on the tension side. Root resorption — shortening of the tooth root — is a known side effect of orthodontic treatment, occurring to a minor degree in most patients and to a clinically significant degree in a smaller proportion. Case reports and small studies have raised concerns that isotretinoin use during active orthodontic treatment may increase the severity of root resorption. The proposed mechanism involves retinoid-induced alteration of osteoblast differentiation and activity, potentially disrupting the balance of resorption and repair around the root apex. While large-scale prospective evidence is limited, the biological plausibility of the interaction and the case reports in the literature mean that most orthodontists adopt a cautious approach when a patient is taking isotretinoin concurrently with active tooth movement.

## Effects on the oral mucosa and bracket comfort

Isotretinoin causes dryness and fragility of all mucous membranes, not only the skin. The lips, cheeks, and gingival tissues become dry, thin, and more easily traumatised. For patients wearing fixed braces, this means that bracket edges, wire ends, and the general roughness of orthodontic appliances cause significantly more mucosal irritation than in a patient not on isotretinoin. Ulceration at the junction of the cheek and brace is more common. Orthodontic wax, silicone covers, and soft wax provide some relief but many patients find the course of treatment considerably more uncomfortable while taking isotretinoin. Clear aligner patients are less affected by this issue because aligners are smooth, but they too experience dry and fragile lip tissue, making aligner insertion and removal more uncomfortable.

## Adhesive tape, perioral skin, and IPR

Isotretinoin causes increased photosensitivity and fragility of the perioral skin. Adhesive tape used during orthodontic procedures — such as cheek retractors for bonding or tape used around impressions — can cause skin stripping or irritation. Clinicians performing orthodontic bonding or other procedures involving adhesive tape on the face should be aware of this. Interproximal reduction (IPR) strips, which contact the gingival papillae and embrasure soft tissues, may cause greater than usual mucosal abrasion in patients on isotretinoin.

## Dry mouth and caries risk with fixed braces

Fixed orthodontic appliances already increase the risk of dental caries by creating plaque-retentive areas around brackets and under wires that are difficult to clean. Isotretinoin reduces saliva production — one of its less-publicised effects. Saliva has a critical protective role: buffering acid, remineralising enamel, washing away food debris, and containing antimicrobial proteins. Reduced salivary flow while wearing fixed braces significantly increases the risk of white spot lesions (early enamel demineralisation) and frank caries. Patients on isotretinoin during orthodontic treatment should be on a high-fluoride toothpaste (2800 or 5000 ppm fluoride), use interdental brushes consistently, and consider a fluoride mouthwash. More frequent hygiene appointments are advisable.

## Should orthodontic treatment be paused during an isotretinoin course?

There is no formal UK national guideline mandating a pause in orthodontic treatment during isotretinoin use, but many orthodontists consider pausing active tooth movement — particularly in patients with existing root resorption risk factors such as short, blunt, or pipette-shaped roots — during the four-to-six-month course. Reducing wire forces to very light levels or placing passive archwires to hold position without active movement is a more conservative approach that avoids stopping treatment entirely. The decision should be made in discussion with the patient, the prescribing dermatologist, and the orthodontist, weighing up the root resorption risk against the cost of delaying treatment completion. A one-month washout period after completing the isotretinoin course — by which time systemic levels have reduced significantly — is often recommended before resuming heavy forces or commencing surgical procedures.

## Communicating with the prescribing dermatologist

UK dermatologists prescribing isotretinoin under the MHRA's Pregnancy Prevention Programme are accustomed to coordinating care with other specialties. Orthodontists should feel confident writing to the dermatologist to flag the concurrent orthodontic treatment and request discussion of timing. Similarly, patients who are about to start a course of isotretinoin should inform their orthodontist at the earliest opportunity. In some cases, deferring the isotretinoin course until after orthodontic treatment is completed — if the acne severity allows — may be the simplest solution. Where acne is severe and cannot wait, a modified orthodontic approach during the course is a reasonable middle ground.

## Useful related pages

[Root Resorption and Orthodontics](https://virtualconsultant.online/guides/root-resorption-orthodontics-uk)

[Medication Effects on Orthodontics](https://virtualconsultant.online/guides/medication-effects-orthodontic-treatment-uk)

[Tooth Decay Prevention During Orthodontics](https://virtualconsultant.online/guides/tooth-decay-prevention-orthodontics-uk)

[Orthodontic Treatment Break UK](https://virtualconsultant.online/guides/orthodontic-treatment-break-uk)

[Orthodontic Bonding UK](https://virtualconsultant.online/guides/orthodontic-bonding-adhesive-uk)

This guide is for general information only. It is not a diagnosis, treatment plan, or substitute for advice from a registered dentist or orthodontist.

### Compare next steps

[Orthodontist Near Me](https://virtualconsultant.online/locations/orthodontic-treatment-near-me)

[Clear Aligners Near Me](https://virtualconsultant.online/treatments/clear-aligners-near-me)

[Invisalign Near Me](https://virtualconsultant.online/locations/invisalign-provider-near-me)

[Browse Locations](https://virtualconsultant.online/locations)

### Ready for a clearer starting point?

Upload guided photos and receive an indication of likely treatment options and pricing before booking appointments.

[Get an Online Quote](https://virtualconsultant.online/evaluations/quote)

### Frequently Asked Questions

Can I have braces while taking Roaccutane?

Many patients do continue orthodontic treatment while taking isotretinoin, but the combination requires careful management. The main concerns are increased root resorption risk, greater mucosal irritation from brackets, dry mouth increasing caries risk, and skin fragility around the mouth. Discussing the timing with both your orthodontist and dermatologist is essential. Some orthodontists prefer to use lighter forces or pause active tooth movement during the course.

Does Roaccutane cause root resorption?

Isotretinoin affects bone metabolism and osteoblast activity, and case reports describe increased root resorption associated with its concurrent use during orthodontic treatment. The evidence is not yet from large randomised trials, but the biological mechanism is plausible. Patients with existing root resorption risk factors — short roots, pipette-shaped roots, or a history of previous resorption — are most likely to benefit from a cautious approach.

How long after finishing Roaccutane can I resume normal orthodontic treatment?

A washout period of approximately one month after completing the course is commonly recommended before resuming heavy orthodontic forces or undertaking surgical orthodontic procedures. Isotretinoin has a half-life of around ten to twenty hours, but its active metabolites and tissue effects persist for several weeks after the last dose. Your orthodontist can advise based on your specific treatment stage.

Will Roaccutane make my braces hurt more?

Almost certainly yes, to some degree. Isotretinoin dries and thins all mucous membranes, making the cheeks, lips, and gums more sensitive and more easily traumatised by bracket edges and wire ends. Liberal use of orthodontic wax on any sharp or irritating components is strongly recommended throughout the course. Keeping lips moisturised with an appropriate lip balm is also important as lip cracking alongside brackets is a common complaint.

Does Roaccutane increase caries risk with braces?

Yes. Isotretinoin reduces saliva flow, and saliva is critical for protecting teeth against acid attack and remineralisation. Fixed braces already make cleaning harder and create plaque traps around brackets. The combination significantly elevates caries and white spot lesion risk. Patients should use high-fluoride toothpaste (2800–5000 ppm), interdental brushes, and fluoride mouthwash, and should attend hygiene appointments more frequently during this period.

Should I tell my orthodontist I am starting Roaccutane?

Yes, immediately. Your orthodontist needs to know so that they can assess your root morphology, consider adjusting forces or archwire selection, plan the timing of any heavy-force mechanics, and advise you on oral hygiene measures. Early communication allows a proactive rather than reactive approach to managing the combination safely.

Can Roaccutane affect how quickly teeth move?

Theoretically yes. Orthodontic tooth movement relies on a balanced cycle of bone resorption and deposition. Isotretinoin alters osteoblast activity and bone metabolism. Some clinicians note that tooth movement can behave unpredictably during a course, with some patients showing slower movement and others showing unexpectedly rapid root resorption. This is another reason to monitor progress more carefully with periapical radiographs during the course if root resorption is a concern.

Explore your options

Quick links

Not sure where to start? Use these quick links to explore orthodontic treatments, typical costs, and helpful guides that explain what different options involve. Whether you're researching braces or clear aligners, comparing pricing, or just getting a feel for what comes next, you can browse at your own pace and come back when you're ready to request a quote.

Explore

[Get Quote](https://virtualconsultant.online/evaluations/quote)

[Costs](https://virtualconsultant.online/costs)

[Browse Treatments](https://virtualconsultant.online/treatments)

[Teeth Straightening](https://virtualconsultant.online/treatments/teeth-straightening)

[Browse Problems](https://virtualconsultant.online/problems)

[Locations](https://virtualconsultant.online/locations)

[Near Me](https://virtualconsultant.online/locations/orthodontic-treatment-near-me)

[NHS Eligibility Checker](https://virtualconsultant.online/about/do-i-qualify-for-nhs-treatment)

[IOTN Score Checker](https://virtualconsultant.online/about/iotn-score-checker)

[How To Take Orthodontic Photos](https://virtualconsultant.online/about/process/how-to-take-orthodontic-photos)

[Online Orthodontist](https://virtualconsultant.online/guides/online-orthodontist-uk)

[Research Papers](https://virtualconsultant.online/research)

[Social Channels](https://virtualconsultant.online/social)

## Ready for a personalised answer?

Upload guided photos and get a tailored recommendation for your teeth and bite.

[Start Photo Assessment](https://virtualconsultant.online/evaluations/quote) [Find an Orthodontist](https://virtualconsultant.online/locations)

Citation details

Title Isotretinoin (Roaccutane) and Braces UK

Publisher Virtual Consultant Online

Published 2024-06-01

Updated 2026-09-02

URL [https://staging.virtualconsultant.online/guides/isotretinoin-roaccutane-orthodontics-uk](https://staging.virtualconsultant.online/guides/isotretinoin-roaccutane-orthodontics-uk)