Oral health-related quality of life after early extraction of primary second molars in children with congenitally missing second premolars: a randomized controlled trial with matched controls.
Naoumova; Nawaia; Krekmanova · 2026 · European journal of orthodontics
WASTE classifies this as Negative / Null Result Report · AI classification, approximate
The study found no significant effect — useful as a negative control or null benchmark for your own design.
Abstract (excerpt)
Extraction of mandibular primary second molars in patients with congenitally missing second premolars may influence oral health-related quality of life (OHRQoL), yet this has not been previously investigated. To assess the impact of…
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Metadata source: PubMed · DOI 10.1093/ejo/cjag048