ArticleThe Angle orthodontist2018
Scanning electron microscopy evaluation of aligner fit on teeth.
Article in The Angle orthodontist, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
What it found
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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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
26 citing papers in PubMed, 46 citations in OpenAlex.
- Micro-computed tomography evaluation of aligner fitting on anchorage attachments.Korean journal of orthodontics · 2026Article
- Automated micro-CT quantification of clear aligner fit: a pilot comparison of manufacturing processes.BMC oral health · 2026Article
- A standardized protocol for clear aligner thickness measurement using a 3D-printed auxiliary device.The Angle orthodontist · 2026Article
- Fit analysis of 3D-printed versus thermoformed clear aligners for labial tooth movement using micro-CT: an in vitro study.Scientific reports · 2026Article
- Accuracy of a clear aligner hybrid approach in managing severe rotations of rounded teeth : A retrospective cohort study.Journal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie · 2026Article
- Retentive force of thermoformed and direct 3D-printed clear aligners with different margin designs and attachments: anFrontiers in oral health · 2026Article
- Measurement of Aligner Thickness and Gap Width in Two Types of Clear Aligner Sheets Manufactured Using Two Different Thermoforming Machines - A Nano-CT Pilot Study.Turkish journal of orthodontics · 2025Article
- Embrasure aligner fit and thickness in 3D-printed and thermoformed aligners: a microcomputed tomography study.Progress in orthodontics · 2025Article
- Evaluation of Compatibility of Different Attachment Types Used in Orthodontic Clear Aligners with Electron Microscopy.Dentistry journal · 2025Article
- Mechanical properties of different types of composite resin used as clear aligner attachments: an in vitro study.The Saudi dental journal · 2025Article
- Effects of torque overcorrection on mandibular incisor intrusion using clear aligners in the first premolar non-extraction and extraction conditions: a finite element analysis study.BMC oral health · 2025Article
- Comparison of translucency, thickness, and gap width of thermoformed and 3D-printed clear aligners using micro-CT and spectrophotometer.Scientific reports · 2023Article
- Effects of different designs of orthodontic clear aligners on the maxillary central incisors in the tooth extraction cases: a biomechanical study.BMC oral health · 2023Article
- Occlusal Changes with Clear Aligners and the Case Complexity Influence: A Longitudinal Cohort Clinical Study.Journal of clinical medicine · 2023Article
- Digital technique to analyze the wear of the slot after orthodontic treatment through fixed multibracket appliances.BMC oral health · 2023Article
- Comparison of dimensional accuracy between direct-printed and thermoformed aligners.Korean journal of orthodontics · 2022Article
- Accuracy of 3D Tooth Movements in the Fabrication of Manual Setup Models for Aligner Therapy.Materials (Basel, Switzerland) · 2022Article
- Three-dimensional analysis of aligner gaps and thickness distributions, using hard x-ray tomography with micrometer resolution.Journal of medical imaging (Bellingham, Wash.) · 2022Article
- Thermo-mechanical properties of 3D printed photocurable shape memory resin for clear aligners.Scientific reports · 2022Article
- Adaptational changes in clear aligner fit with time.The Angle orthodontist · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesThe fitting of aligners on anchorage teeth is a crucial factor in clear aligner orthodontics. The purpose of this experimental study was to evaluate the fitting of two aligner systems, Invisalign and CA-Clear Aligner, using scanning electron microscopy (SEM). MATERIALS AND
methodsPassive aligners (Invisalign and CA-Clear Aligner) were adapted on resin casts obtained by stereolithography (STL) files of a patient, and then sectioned buccolingually. Upper and lower central incisors, upper and lower first premolars, and upper and lower first molars were the regions analyzed. Representative microphotographs of sections were taken with a scanning electron microscope (SEM); a total of 160 micrometric measurements were obtained and analyzed with ANOVA tests.
resultsInvisalign provided an overall better fit on lower incisors ( F = 11.48, P = .0095) and on lower molars ( F = 19.93, P = .0012). Considering the different regions, Invisalign provided better fit at the gingival edge of the buccal aspect on lower incisors ( F = 11.33, P = 0.0056) and at the gingival edge of the lingual aspect on upper premolars ( F =5.34, P = 0.0047). On the upper molars, Invisalign provided better fit at the gingival edge of the buccal aspect, while CA-Clear Aligner provided better fit at the buccal maximum convexity, on the buccal cusp, on the occlusal groove and at the palatal cusp. On lower molars, Invisalign showed a more accurate fit at the buccal aspect points.
conclusionsInvisalign and CA-Clear Aligner exhibited comparable fit on anchorage teeth. Invisalign provided better fit at the gingival edges of aligners, while the CA-Clear Aligner provided better fit on complex occlusal surfaces.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.