Efficacy of single versus double miniscrew-assisted maxillary anterior intrusion in subjects with gummy smile or deep bite: A systematic review and meta-analysis - 19/03/25
, Siddarth Shetty 2, Rajaganesh Gautam 3, Puneet Batra 1, Toni Lego 1Highlights |
• | Bilateral mini-screws positioned between the maxillary lateral incisors and canines result in significantly greater maxillary anterior intrusion compared to a single mini-screw placed between the central incisors. |
• | The bilateral mini-screws setup provides superior control over incisor inclination and stability during the intrusion process. |
• | Bilateral mini-screws achieve effective intrusion with minimal side effects, offering a clinically favourable outcome. |
• | The forest plot analysis supports the finding of significant maxillary anterior intrusion with the bilateral mini-screws configuration, further validating the approach. |
Summary |
Aim |
The focus of this review is to compare the efficacy and predictability of single versus double miniscrew placement for maxillary anterior intrusion.
Material and methods |
Systematic search for relevant articles published between 2005 and January 2025 was conducted across electronic databases including Scopus, PubMed, WoS, EBSCOhost and Cochrane Library. Studies meeting pre-defined eligibility criteria were included and assessed for methodological quality. Data on intrusion of maxillary anteriors using MS was extracted from included studies. Meta-analysis was conducted to evaluate the effectiveness of single versus double MS in relation to anterior intrusion.
Results |
The analysis showed that bilateral miniscrews (MS), placed between the maxillary lateral incisors and canines, resulted in significantly greater maxillary anterior intrusion compared to a single MS placed between the central incisors. Bilateral MS also provided better control over incisor inclination and stability with minimal side effects. The forest plot further confirmed significant intrusion with bilateral MS, with a mean difference of −0.25 and an overall effect (Z) of 1.98. The comparison between single and double MS demonstrated a significant effect of double MS on maxillary anterior intrusion (P<0.00001).
Conclusion |
Bilateral MS configurations offer a reliable and effective treatment approach in maxillary anterior intrusion, particularly when considering individual variations in anatomical and clinical factors.
Le texte complet de cet article est disponible en PDF.Keywords : Miniscrews, Intrusion, Maxillary teeth, Gummy smile, Deep bite
Plan
| ☆ | Clinical significance: this review addresses the gap in determining the optimal number of MS for maxillary anterior intrusion, revealing that double MS are more effective, offering valuable insights to guide clinical decision-making and enhance orthodontic outcomes. |
| ☆☆ | PROSPERO registration: CRD42025632352. |
Vol 23 - N° 3
Article 100996- septembre 2025 Retour au numéro
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