ArticleCureus2025
A Finite Element Analysis of Mandibular Anterior Intrusion Using Mini-Screws With Three Different Implant Insertion Angles.
Article in Cureus, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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
1 citing paper in PubMed.
- Bone-Screw-Force Interactions in Palatal Orthodontic Mini-Implants: A Scoping Review and Decision Framework for Primary Stability and Biomechanically Driven Site Selection.Journal of functional biomaterials · 2026Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background Facial aesthetics is a growing concern among young individuals, which greatly depends on the underlying dentofacial harmony. Among the anomalies in the three-dimensional plane of space, the problems related to the vertical plane of dentition are the most arduous to treat. It is commonly associated with supra-eruption of anterior teeth that are frequently treated using mini-screws as a skeletal anchorage device. The various factors associated with the stability of mini-screws include the insertion angle of the mini-screw in effecting a true intrusion with uniform distribution of stress. This finite element study evaluated the von Mises stress generated on the periodontal ligament and displacement in labio-lingual and apical directions during the intrusion of four- and six- mandibular anterior teeth using bilateral mini-screws inserted at 90°, 60°, and 30° in relation to the bone surface directed apically. Methodology Six finite element models of mandibular four- and six- anterior teeth with bilateral mini-screws were simulated with insertion angles of 30°, 60°, and 90° with disto-intrusive force vectors. The von Mises stress and displacement along apical and labiolingual axes were assessed when the force levels were applied, and a non-linear static analysis was performed using ANSYS version 18.1 software. Results The highest von Mises stress was elicited at 30° insertion in both four-teeth (0.002028 MPa) and six-teeth (0.002856 MPa) intrusion scenarios, which decreased with 60° (0.001948 MPa and 0.002768 MPa, respectively) and the least at 90° (0.001885 MPa and 0.002675 MPa, respectively). The teeth showed maximum labial tipping at 90° (0.000353 mm in four-teeth and 0.000507 mm in six-teeth) and least at 30°. Maximum intrusion was elicited at 90°, followed by 60°, and the least at 30°. Central incisor underwent maximum intrusion in both four- and six-teeth scenarios. Conclusions The study findings suggest the oblique placement of bilateral mini-screws at around 60° with a disto-intrusive force vector to achieve a relatively true intrusion with optimal stress generation and minimal labial tip in four- and six- mandibular anterior teeth.
Indexed as
Identifiers
What OpenQuestion holds
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.