Survey of Iraqi Orthodontists on the Frequency, Periodontal Effects, and Clinical Management of Patients Receiving Systemic Isotretinoin Therapy
DOI:
https://doi.org/10.5195/d3000.2026.1635Keywords:
Isotretinoin, Orthodontics, Periodontal Diseases, Root ResorptionAbstract
Isotretinoin is considered one of the major treatment options for resistant acne vulgaris. Concerns have been raised about its effect on periodontal health and orthodontic tooth movement since retinoids affect bone metabolism; however, evidence regarding this topic is still insufficient. To assess the knowledge, attitudes, perceptions and clinical practices of Iraqi orthodontists regarding the orthodontic management of patients receiving isotretinoin therapy. A cross-sectional questionnaire-based study that utilized a 44-item survey. Licensed Iraqi orthodontists were invited to complete the questionnaire within a certain timeline, and 110 valid responses were included in the final analysis. Knowledge varied considerably across individual items. The mean core knowledge score, derived from eight evidence-based items, was 4.44 ± 1.59 out of 8, corresponding to an overall accuracy of 55.5%. Knowledge scores did not differ significantly according to academic qualification, years of orthodontic practice, or previous clinical experience with isotretinoin-treated patients (all p-values> 0.05). Although 70.9% of respondents reported modifying orthodontic treatment on a case-by-case basis, only 0.9% routinely collaborated with dermatologists. The belief that isotretinoin adversely affects periodontal health was significantly associated with treatment modification (χ² = 35.46, p-value < 0.001), and previous clinical experience with isotretinoin-treated patients was associated with modification of treatment strategies (p-value = 0.049). Iraqi orthodontists demonstrated moderate overall knowledge regarding isotretinoin therapy. There were no significant differences in knowledge according to professional qualification or clinical experience. The findings highlight the need for evidence-based guidelines and the development of recommendations to support the orthodontic management of patients receiving isotretinoin therapy.
References
1. R. V. Reynolds, H. Yeung, C. E. Cheng, F. Cook-Bolden, S. R. Desai, K. M. Druby, E. E. Freeman, J. E. Keri, L. F. Stein Gold, J. K. L. Tan, M. M. Tollefson, J. S. Weiss, P. A. Wu, A. L. Zaenglein, J. M. Han and J. S. Barbieri. Guidelines of care for the management of acne vulgaris. J Am Acad Dermatol 2024; 90: 1006.e1-06.e30. 20240130. DOI: 10.1016/j.jaad.2023.12.017.
2. H. D. Pile and P. Patel. Isotretinoin. StatPearls. Treasure Island (FL): StatPearls Publishing
Copyright © 2026, StatPearls Publishing LLC., 2026.
3. P. Sarkar, N. Sultana, P. K. Debnath, R. Rouf, M. S. Mubarak, S. J. Uddin, D. Popa, D. Calina and J. Sharifi-Rad. Isotretinoin as a Multifunctional Anticancer Agent: Molecular Mechanisms, Pharmacological Insights and Therapeutic Potential. Arch Pharm (Weinheim) 2025; 358: e70084. DOI: 10.1002/ardp.70084.
4. A. Paichitrojjana and A. Paichitrojjana. Oral Isotretinoin and Its Uses in Dermatology: A Review. Drug Des Devel Ther 2023; 17: 2573-91. 20230825. DOI: 10.2147/dddt.S427530.
5. T. Fernandes and S. Magina. Oral isotretinoin in the treatment of juvenile acne and psychiatric adverse effects - a systematic review. Cutan Ocul Toxicol 2023; 42: 83-90. 20230705. DOI: 10.1080/15569527.2023.2227889.
6. L. De Ridder, A. Aleksieva, G. Willems, D. Declerck and M. Cadenas de Llano-Pérula. Prevalence of Orthodontic Malocclusions in Healthy Children and Adolescents: A Systematic Review. International Journal of Environmental Research and Public Health 2022; 19: 7446.
7. J. C. Maltha and A. M. Kuijpers-Jagtman. Mechanobiology of orthodontic tooth movement: An update. Journal of the World Federation of Orthodontists 2023; 12: 156-60. DOI: https://doi.org/10.1016/j.ejwf.2023.05.001.
8. U. H. Lerner. Vitamin A – discovery, metabolism, receptor signaling and effects on bone mass and fracture susceptibility. Frontiers in Endocrinology 2024; Volume 15 - 2024. Review. DOI: 10.3389/fendo.2024.1298851.
9. M. F. Ferreira, A. C. Botazzo Delbem, E. Ervolino, L. de Abreu Costa, C. Antoniali Silva, J. R. Prando Dos Santos and M. R. de Mendonça. Therapeutic dosage of isotretinoin in rats may influence orthodontic tooth movement. Bone Rep 2024; 21: 101775. 20240517. DOI: 10.1016/j.bonr.2024.101775.
10. A. X. Graciano Parra, A. C. Batista Rodrigues Johann, A. M. Trindade Grégio Hardy, L. R. Oppitz, C. M. Araujo, O. M. Tanaka, O. Guariza Filho and E. S. Camargo. Effect of isotretinoin on induced tooth movement in rats. American Journal of Orthodontics and Dentofacial Orthopedics 2021; 159: 193-201. DOI: https://doi.org/10.1016/j.ajodo.2019.12.022.
11. G. D. Gok, K. Halicioglu, A. Keles, N. V. Olgac, D. Kayali and O. T. C. Kaya. Effects of isotretinoin on tooth movement, orthodontically induced and non-orthodontic root resorption: A micro-CT study. Orthodontics & Craniofacial Research 2024; 27: 974-84. DOI: https://doi.org/10.1111/ocr.12840.
12. M. A. R, M. A. Ahmad Farhan, M. A. S, A. A. Fajr Ehab, F. A. Abdulmohsen Abdulkarim, A. Zwiri, M. G. Sghaireen and M. K. Alam. Oral side effects of dermatologic therapies: A systematic review and meta-analysis. Bioinformation 2025; 21: 2833-40. 20250831. DOI: 10.6026/973206300212833.
13. N. Duran, C. G. C and J. L. Borke. Isotretinoin and Orthodontic Tooth Movement- A Review of the Literature. Oral Health and Dental science 2024.
14. A. Nast, B. Dréno, V. Bettoli, Z. Bukvic Mokos, K. Degitz, C. Dressler, A. Y. Finlay, M. Haedersdal, J. Lambert, A. Layton, H. B. Lomholt, J. L. López-Estebaranz, F. Ochsendorf, C. Oprica, S. Rosumeck, T. Simonart, R. N. Werner and H. Gollnick. European evidence-based (S3) guideline for the treatment of acne - update 2016 - short version. J Eur Acad Dermatol Venereol 2016; 30: 1261-8. DOI: 10.1111/jdv.13776.
15. L. K. Spring, A. C. Krakowski, M. Alam, A. Bhatia, J. Brauer, J. Cohen, J. Q. Del Rosso, L. Diaz, J. Dover, L. F. Eichenfield, G. C. Gurtner, C. W. Hanke, M. N. Jahnke, K. M. Kelly, S. Khetarpal, M. A. Kinney, M. L. Levy, J. Leyden, M. T. Longaker, G. S. Munavalli, D. M. Ozog, H. Prather, P. R. Shumaker, E. Tanzi, A. Torres, M. W. Velez, A. B. Waldman, A. C. Yan and A. L. Zaenglein. Isotretinoin and Timing of Procedural Interventions: A Systematic Review With Consensus Recommendations. JAMA Dermatol 2017; 153: 802-09. DOI: 10.1001/jamadermatol.2017.2077.
16. F. Erduran, M. D. Çoşlu, S. Karaaslan and S. Emre. Isotretinoin Beyond the Skin: A Prospective Study on Its Impact on Periodontal Health. Dermatol Pract Concept 2026; 16 20260401. DOI: 10.5826/dpc.1602a6739.
17. A. Nast, B. Dréno, V. Bettoli, K. Degitz, R. Erdmann, A. Y. Finlay, R. Ganceviciene, M. Haedersdal, A. Layton, J. L. López-Estebaranz, F. Ochsendorf, C. Oprica, S. Rosumeck, B. Rzany, A. Sammain, T. Simonart, N. K. Veien, M. V. Zivković, C. C. Zouboulis and H. Gollnick. European evidence-based (S3) guidelines for the treatment of acne. J Eur Acad Dermatol Venereol 2012; 26 Suppl 1: 1-29. DOI: 10.1111/j.1468-3083.2011.04374.x.
18. G. Zhao and F. Zhu. Age matters in orthodontics: divergent motivations, perfectionism, and patient-clinician discord in treatment need assessment. Front Med (Lausanne) 2025; 12: 1714237. 20260121. DOI: 10.3389/fmed.2025.1714237.
19. N. Duran, C. Gage and J. Borke. Isotretinoin and Orthodontic Tooth Movement-A Review of the Literature. Oral Heal Dent Sci 2024; 8: 1-4.
20. L. Hu, T. Lind, A. Sundqvist, A. Jacobson and H. Melhus. Retinoic acid increases proliferation of human osteoclast progenitors and inhibits RANKL-stimulated osteoclast differentiation by suppressing RANK. PLoS One 2010; 5: e13305. 20101011. DOI: 10.1371/journal.pone.0013305.
21. C. Nishio, P. Rompré and F. Moldovan. Effect of exogenous retinoic acid on tooth movement and periodontium healing following tooth extraction in a rat model. Orthod Craniofac Res 2017; 20 Suppl 1: 77-82. DOI: 10.1111/ocr.12151.
22. M. Parreira, D. V. Buchaim, A. C. C. Bighetti, M. A. Girotto, M. de Marchi, D. M. B. Nogueira, A. A. Foggiato, J. Z. Coléte, A. Fuziy and R. L. Buchaim. Microtomographic, Histomorphological, and Histomorphometric Analysis of Bone Healing in the Midpalatal Suture After Treatment with Isotretinoin. Dent J (Basel) 2025; 13 20250325. DOI: 10.3390/dj13040142.
23. M. F. Ferreira, G. P. Nunes, A. H. Chaves-Neto, A. H. Reis-Prado, M. P. Justo, C. Ferreira-Baptista, N. A. Gomes, A. C. B. Delbem and M. R. de Mendonça. Effects of isotretinoin on bone dynamics in the craniomaxillofacial region: a systematic review of preclinical evidence. Eur Arch Paediatr Dent 2026; 27: 349-66. 20250908. DOI: 10.1007/s40368-025-01107-5.
24. J. Ornelas, L. Rosamilia, L. Larsen, N. Foolad, Q. Wang, C. S. Li and R. K. Sivamani. Objective assessment of isotretinoin-associated cheilitis: Isotretinoin Cheilitis Grading Scale. J Dermatolog Treat 2016; 27: 153-5. 20150923. DOI: 10.3109/09546634.2015.1086477.
25. U. Erdemir, G. Okan, S. Gungor, B. Tekin, S. O. Yildiz and E. Yildiz. The oral adverse effects of isotretinoin treatment in acne vulgaris patients: A prospective, case-control study. Niger J Clin Pract 2017; 20: 860-66. DOI: 10.4103/1119-3077.183248.
26. R. AlJasser, R. AlAqeely, A. AlZahrani, M. AlKenani, S. AlQahtani, M. AlSarhan, D. AlOtaibi and R. Lambarte. Antimicrobial Effect of Isotretinoin Therapy on Periodontal Pathogens: A Case-Control Study. Antibiotics (Basel) 2021; 10 20211021. DOI: 10.3390/antibiotics10111286.
27. G. Ustaoğlu, Ş. Güler and M. Polat. Effect of isotretinoin on periodontal tissues and oxidative stress markers in the saliva. Turkderm-Turkish Archives Of Dermatology And Venerology 2020.
28. B. J. Doolan, A. Paolino, D. T. Greenblatt and J. E. Mellerio. Retinoid-induced skeletal hyperostosis in disorders of keratinization. Clin Exp Dermatol 2022; 47: 2273-76. 20220927. DOI: 10.1111/ced.15382.
29. S. W. Graf and S. L. Whittle. Isotretinoin-induced skeletal hyperostosis. Springerplus 2014; 3: 698. 20141127. DOI: 10.1186/2193-1801-3-698.
30. A. K. Giri, M. Chaudhary, A. K. Yadav, A. Shrestha, T. Bhagat, S. K. Agrawal and U. Gautam. Knowledge and perception of antibiotic prophylaxis for dental procedures among Nepali dental students: a questionnaire-based study. BMC Oral Health 2025; 25: 873. 20250602. DOI: 10.1186/s12903-025-06264-z.
31. M. J. A. Bitar, A. Alhebshi, A. I. Alsafran, I. E. M. Alchikhsuliman, R. O. A. Alzoubi, A. Alhabashi, I. Sula and M. A. Alreshidi. The Antibiotic Prescription Knowledge and Practice Among Dentists and Dental Students in Saudi Arabia: A Scoping Review. Acta Microbiologica Hellenica 2026; 71: 11.
32. T. Kenzaka, N. Mizutani, T. Hayashi and A. Kumabe. Antibiotic Prophylaxis Practices for the Prevention of Infective Endocarditis Among Japanese Dentists: A Questionnaire Survey of Members of the Hyogo Dental Association. Healthcare (Basel) 2026; 14 20260218. DOI: 10.3390/healthcare14040523.
33. S. Karaaslan, G. Acar and S. E. Meral. Evaluation of dental practitioners' knowledge and attitudes regarding drug interactions: a cross-sectional survey. BMC Oral Health 2026; 26 20260210. DOI: 10.1186/s12903-026-07832-7.
34. D. Dunning, K. Johnson, J. Ehrlinger and J. Kruger. Why people fail to recognize their own incompetence. Current directions in psychological science 2003; 12: 83-87.
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