Potential Scarring Risks of Oral A-Retinoids During Orthodontic Procedures - Dermatology

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Oral administration of isotretinoin and its related issues with scar hypertrophy?


Hello, Doctor.
I previously read an article stating that "taking isotretinoin may cause unpredictable tissue repair effects, leading to poor wound healing and potentially resulting in scar formation, such as hypertrophic scars or keloids." I would like to know if I will experience increased scarring or poor healing if I undergo bone screw placement while on oral isotretinoin.
I just started my isotretinoin regimen today (10 mg every other day), and I am at the stage of my orthodontic treatment where I need to have bone screws placed (my follow-up appointment is next month, which will be just before I complete a month on isotretinoin, and I will need to have three screws placed, with more to follow).
I would like to understand if there could be any adverse effects so I can assess the situation.
Thank you very much for taking the time to respond!

tracey, 20~29 year old female. Ask Date: 2023/02/11

Dr. Wu Yuxin reply Dermatology


The current understanding is that it is unlikely to cause more scarring; however, there has not been a comparative study on the same individual using and not using retinoids regarding scarring.
Each person's physiology is different, so it cannot be generalized.
It is advisable to discuss this issue with your physician.
If there are concerns, why not consider temporarily discontinuing retinoid treatment?

Reply Date: 2023/02/11

More Info


When considering the use of oral A-retinoids (commonly known as isotretinoin) during orthodontic procedures, particularly when bone screws (also known as temporary anchorage devices) are involved, it is essential to understand the potential implications for wound healing and scarring.

Isotretinoin is a powerful medication primarily used to treat severe acne. It works by reducing the size and activity of sebaceous glands, leading to decreased oil production and, consequently, fewer acne lesions. However, one of the notable side effects of isotretinoin is its impact on skin and mucosal healing. Studies have indicated that isotretinoin can impair the normal healing process, potentially leading to complications such as delayed wound healing, increased risk of scarring, and the formation of hypertrophic scars or keloids.

In the context of orthodontic treatment, particularly when bone screws are placed, the healing of the surrounding tissues is crucial for the success of the procedure. Bone screws are typically used to provide additional anchorage for tooth movement, and their placement involves creating a small surgical site in the bone and soft tissue. If you are on isotretinoin during this time, there is a possibility that the healing process may be affected. This could manifest as prolonged inflammation, increased pain, or even complications such as infection, which can further complicate healing and lead to undesirable scarring.

The timing of your isotretinoin therapy is also a critical factor. Since you mentioned that you are starting the treatment and will be undergoing the placement of bone screws shortly thereafter, it is advisable to discuss this with your orthodontist and the prescribing physician. They may recommend postponing the placement of the screws until after you have completed your isotretinoin course, or they may suggest a modified approach to minimize risks.

Moreover, it is essential to monitor the surgical sites closely after the placement of bone screws. If you notice any signs of delayed healing, such as excessive redness, swelling, or discharge, it is crucial to contact your healthcare provider promptly. They may need to evaluate the sites and consider interventions to promote healing.

In summary, while isotretinoin can be an effective treatment for acne, its use during orthodontic procedures involving bone screws may pose risks related to wound healing and scarring. It is vital to have an open dialogue with your orthodontist and dermatologist to ensure that you are making informed decisions about your treatment plan. They can provide personalized advice based on your specific situation, including the timing of procedures and any necessary precautions to mitigate risks associated with isotretinoin therapy.

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