Evaluation of mesiodistal tip accuracy in mandibular anterior teeth following incisor extraction with clear aligners

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dc.authorid0009-0004-6316-6072
dc.authorid0009-0008-8331-9493
dc.authorid0000-0003-4966-9779
dc.contributor.authorErdem, Buket
dc.contributor.authorÖzcan, Mustafa
dc.contributor.authorŞar, Çağla
dc.date.accessioned2026-01-24T08:20:14Z
dc.date.available2026-01-24T08:20:14Z
dc.date.issued2025
dc.departmentFakülteler, Diş Hekimliği Fakültesi, Klinik Bilimler Bölümü, Ortodonti Ana Bilim Dalı
dc.description.abstractIntroduction: Single mandibular incisor extraction is sometimes necessary in clear aligner treatment, yet the accuracy of mesiodis tal tooth positioning in such cases remains unclear. This retro spective study evaluates the discrepancy between predicted and achieved mesiodistal movements of the remaining mandibular an terior teeth in Invisalign (Align Technology, Santa Clara, CA) treat ments. Additionally, it examines the effects of aligner attachments and change frequency on movement accuracy. Material and Methods: A total of 40 Invisalign patients with single mandibular incisor extraction were retrospectively analyzed. Geomagic Control X (3D Systems, Rock Hill, SC) was used to mea sure pretreatment positions, predicted movements, and achieved outcomes. Predicted and actual mesiodistal tip movements were compared. Results: Regression analysis revealed significant discrepancies (P < 0.001) between predicted and achieved mesiodistal movements for both incisors and canines. Only 70% of the predicted incisor tip movement (R² = 0.4171) and 60% of the predicted canine tip move ment (R² = 0.5789) were achieved. Neither the number of aligners, change protocol (1-week vs. 2-week), nor attachments significantly affected accuracy (P > 0.05). However, incisors were less likely than canines to follow the predicted movement direction (P = 0.025). Conclusion: A significant discrepancy exists between predicted and achieved mesiodistal movements after single mandibular in cisor extraction with Invisalign. The number of aligners, wear dura tion, and attachments do not significantly influence accuracy. Fur ther research is needed to optimize treatment planning and im prove predictability in clear aligner therapy.
dc.identifier.citationErdem, B., Özcan, M., & Şar, Ç. (2025). Evaluation of mesiodistal tip accuracy in mandibular anterior teeth following incisor extraction with clear aligners. Journal of the World Federation of Orthodontists, 14(6), pp. 571. https://doi.org/10.1016/j.ejwf.2025.07.538
dc.identifier.doi10.1016/j.ejwf.2025.07.538
dc.identifier.endpage571
dc.identifier.issn2212-4438
dc.identifier.issue6
dc.identifier.scopusqualityQ1
dc.identifier.startpage571
dc.identifier.urihttps://doi.org/10.1016/j.ejwf.2025.07.538
dc.identifier.urihttps://hdl.handle.net/20.500.13055/1270
dc.identifier.volume14
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.indekslendigikaynak.otherESCI - Emerging Sources Citation Index
dc.institutionauthorErdem, Buket
dc.institutionauthorÖzcan, Mustafa
dc.institutionauthorŞar, Çağla
dc.institutionauthorid0009-0004-6316-6072
dc.institutionauthorid0009-0008-8331-9493
dc.institutionauthorid0000-0003-4966-9779
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofJournal of the World Federation of Orthodontists
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.titleEvaluation of mesiodistal tip accuracy in mandibular anterior teeth following incisor extraction with clear aligners
dc.typeArticle
dspace.entity.typePublication

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