Trial reportBMC oral health2025
Assessment of the impact of Z-Spring appliances and clear aligners on salivary parameters and periodontal health in children: a randomized clinical trial.
Trial report in BMC oral health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06858033 (Assessment of the Effect of Labio-Lingual Spring Hawley and Clear Aligners on Children's Oral Microflora and Salivary Parameters), which is not on this map. Not yet cited in PubMed.
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.
Assessment of the Effect of Labio-Lingual Spring Hawley and Clear Aligners on Children's Oral Microflora and Salivary Parameters
Who cites it
0 citing papers in PubMed.
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Corrections and comments
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Authors and funding
3 authors.
Funding
Abstract
backgroundRemovable appliances greatly affect oral hygiene and increase the amount of plaque retention. The aim of this prospective study was to evaluate the effects of anterior crossbite treatment with Z-spring appliance and clear aligners on periodontal health and salivary parameters.
methodsThirty children aged 7–12 years were divided into two equal groups for anterior crossbite treatment: Clear aligners (Aligner group) and Z-spring appliance (Z-spring group). Periodontal health was assessed using plaque index (PI), gingival index (GI), and bleeding on probing (BOP). Salivary flow rate, pH, and buffering capacity were also measured. Assessments were performed at baseline (T0) and post-treatment (T1).
resultsAligner group exhibited significant increases in PI (p = 0.003) and GI (p = 0.002) scores, alongside a reduction in salivary buffering capacity (p = 0.039). Z-spring group demonstrated significant increases in unstimulated (p = 0.008) and stimulated salivary pH (p = 0.008). Intergroup comparisons revealed higher PI (p = 0.002) and GI (p = 0.003) scores in Aligner group, while Z-spring group showed increased stimulated salivary flow rate (p = 0.039).
conclusionsClear aligner treatment negatively affected oral hygiene in children within a short treatment period. This study is the first to compare Z-spring appliances and clear aligners for anterior crossbite correction, providing novel insights into their effects on oral health.
trial registrationClinicalTrials.gov NCT06858033. Retrospectively registered 20/01/2025.
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