ArticleClinical oral investigations2025
Post-treatment stability after insertion of CAD/CAM fabricated or Conventional fixed orthodontic retainers: a two-year follow-up.
Article in Clinical oral investigations, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.
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
2 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Effects of different orthodontic retainers on dental arch stability and periodontal health: a systematic review with pairwise meta-analysis and network meta-analysis.BMC oral health · 2026Pooled it
- Three-dimensional stability during orthodontic retention: A comparative analysis of conventional, CAD/CAM-fabricated, and robotically bent fixed retainers versus removable appliances.Clinical oral investigations · 2026Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveSince relapse after orthodontic treatment and stability and failure of CAD/CAM fabricated and Conventional fixed retainers are widely discussed, this study investigated and compared two-year post-treatment stability after insertion of a CAD/CAM fabricated or Conventional fixed retainer in the lower jaw. MATERIALS AND
methodsDigitized dental casts or intraoral scans of n = 60 patients were used for data acquisition. The patients were divided into two groups according to the retention protocol: CAD/CAM fabricated fixed retainer (n = 30, mean age 16.97 ± 5.74 years) and Conventional fixed retainer (n = 30, mean age 15.70 ± 4.19 years). The evaluation included established procedures for dental measurements of the mandible (Intercanine Distance and Little´s Irregularity Index) before orthodontic treatment, at the end of orthodontic treatment, when the fixed retainer was inserted and two years after the insertion of the fixed retainer. All retainers were inserted by the same practitioner. Complications were recorded. Statistics included Shapiro-Wilk-, T- and Friedman-Tests. The level of significance was set at p < 0.05.
resultsIn patients with Conventional fixed retainers the change of the Intercanine Distance between insertion of the fixed retainer and two years afterwards was significantly more pronounced than in patients with CAD/CAM fabricated fixed retainers (ICD: Δ CAD/CAM
conclusionsWithin two years, CAD/CAM fabricated fixed retainers showed less relapse of Intercanine Distance and fewer complications than Conventional fixed retainers. CLINICAL RELEVANCE: Considering the amount of relapse and the differences in complications, CAD/CAM fabricated fixed retainers and Conventional fixed retainers are useful appliances for stabilization of treatment results with favorable stability. Fabrication of CAD/CAM based fixed retainers is aside from that timesaving compared to Conventional fixed retainers.
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