ArticleProgress in orthodontics2024
Surface wear of attachments in patients during clear aligner therapy: a prospective clinical study.
Article in Progress in orthodontics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07215598 (Accuracy of Invisalign Attachments), which is not on this map. Cited by 13 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Accuracy of Invisalign Attachments: A Split-Mouth Comparative Study of Optimized and Conventional Designs
Who cites it
13 citing papers in PubMed.
- Three-Dimensional Assessment of Composite Attachment Wear in Clear Aligner Therapy: A Prospective Cohort Study.Cureus · 2026Article
- Clear aligner attachment accuracy and composite excess using flowable composite resins of varying viscosities.The Angle orthodontist · 2026Article
- Effect of attachment wear on maxillary canine rotation in clear aligner therapy: a three-dimensional finite element analysis.BMC oral health · 2026Article
- Evaluation of wear amounts of different composite resin attachments used in clear aligner treatment over a 6-month period: a retrospective study.The Angle orthodontist · 2026Article
- Advances in clear aligner therapy: comparative evaluation of the optical properties and bacterial adhesion of 3D direct-printed and thermoformed aligners.Progress in orthodontics · 2025Article
- Reliability of different composite materials in aligner treatments: a comprehensıve in vitro study.Progress in orthodontics · 2025Article
- Time-dependent microbiome dynamics in orthodontic thermoplastic materials: comparing PETG and TPU.Clinical oral investigations · 2025Article
- Wear resistance of orthodontic attachments: a comparative analysis of different composite resins in clear aligner therapy.Clinical oral investigations · 2025Article
- Wear volumes of flowable and sculptable resin composite attachments and their correlation with retentive force of clear aligners: a laboratory study.BMC oral health · 2025Article
- Accuracy Evaluation of Indirect Bonding Techniques for Clear Aligner Attachments Using 3D-Printed Models: An In Silico and Physical Model-Based Study.Materials (Basel, Switzerland) · 2025Article
- Impacts of surface wear of attachments on maxillary canine distalization with clear aligners: a three-dimensional finite element study.Frontiers in bioengineering and biotechnology · 2025Article
- Distalization of the mandibular first molar with clear aligners: a 3D finite element study.Frontiers in bioengineering and biotechnology · 2025Article
- Seeking orderness out of the orderless movements: an up-to-date review of the biomechanics in clear aligners.Progress in orthodontics · 2024Review
Corrections and comments
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2 authors.
Funding
Abstract
backgroundThis prospective clinical study aimed to quantitatively evaluate the surface wear of attachments and investigate the associated risk factors. Additionally, the wear values and regions of three types of commonly used attachments were explored.
methodsParticipants were recruited from the population of patients who received clear aligner therapy from October to December 2022. Intraoral scanning was performed on eligible participants before treatment (T0), immediately after initial bonding of attachments (T1), and at 2 months (T2), 4 months (T3), 6 months (T4), and 8 months (T5) after starting treatment. The attachment volume, average depth and regions of attachment wear were measured using superimposed digitized models. The Kruskal-Wallis test was performed to compare data between multiple groups. Multiple linear regression analyses were performed to evaluate risk factors for the volume of attachment wear.
resultsA total of 47 patients with 617 attachments were included. As treatment time increased, the attachment volume decreased significantly (P = 0.003). The initial attachment volume was positively related to the volume of attachment wear (β = 0.527, P < 0.001). The volume of attachment wear was significantly greater in females than in males (β = 0.147, P = 0.020) and in optimized attachments than in conventional attachments (β = 0.308, P < 0.001). The wear of 3-mm rectangular attachments progressed from edges to buccal surfaces, with the deepest wear at corners of gingival edges; the wear of the optimized attachments was primarily located on surface ridges. The wear volume ratio of the optimized root control attachments was significantly greater than that of the 3-mm rectangular attachments at T3 (P = 0.011), T4 (P < 0.001), and T5 (P < 0.001).
conclusionsThe volume of attachment wear increased gradually with treatment time. Sex, attachment type, and initial attachment volume were risk factors for the volume of attachment wear. The deepest wear regions of 3-mm rectangular attachments were at the corners of gingival edges, while the deepest wear regions of optimized attachments were at surface ridges. Four months after treatment, optimized root control attachments showed more relative wear than 3-mm rectangular attachments.
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