ArticleEuropean archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry2025
Three-dimensional morphological evaluation of anatomical models for 101 primary maxillary central incisors.
Article in European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors.
Funding
Abstract
purposeResearch on primary maxillary central incisors (PMCIs) remains limited, and their morphological variations have rarely been documented. This study aimed to reconstruct anatomy of PMCIs in children from Beijing (China) and to analyse their commonalities and variations.
methodsEmploying a threshold-based semi-automated region segmentation method, anatomical models of 101 PMCIs were reconstructed from existing cone-beam computed tomography (CBCT) images. Models were classified according to the Vertucci classification. For each variant type, representative morphological parameters of the hard tissue, pulp chamber, and canals were measured. The type with the highest prevalence was selected as the main type and its average model was constructed, representing the most common characteristics of PMCIs.
resultsAll PMCIs had a single root, whereas novel canal variations were identified. The most common canal type was Type I (61.4%), followed by Type V (20.8%) and Type III (17.8%). Anatomical parameters of main-type PMCIs were as follows: hard-tissue length = 15.76 ± 0.89 mm; pulp chamber and canal length = 12.94 ± 1.15 mm; and apical labial curvature angle was 22.57°. Statistical analysis indicated no differences between left and right, and no sex-related differences (p > 0.05). Statistically significant differences between the main-type and other variants were noted for several pulp-chamber and canal measurements (p < 0.05), but not for hard-tissue measurements (p > 0.05). An average main-type model was constructed; its inner and outer profiles conformed to the general characteristics of main-type PMCIs.
conclusionPMCI canal variations were more complex than previously recognised, with uniform hard-tissue anatomy. Furthermore, an average main-type model was constructed, as a potentially valuable tool for dental education.
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.