ArticleEuropean journal of orthodontics2025
Studying the dynamics of mandibular growth spurts in individuals with Class I and Class II skeletal growth patterns using the Bayesian superimposition by translation and rotation (SITAR) model.
Article in European journal of orthodontics, 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
4 authors.
Funding
Abstract
backgroundComparing the mandibular growth patterns of Class I and Class II children offer valuable insights into adolescent growth dynamics that are crucial for planning growth modification procedures.
aimTo test the null hypothesis of no class differences (Class I vs. Class II) in mandibular growth spurt parameters (size, timing, intensity) versus clinically relevant differences defined as ≥ 5 mm for size, ≥ 1 year for timing, and ≥ 1 mm/year for intensity. SUBJECTS AND
methodsData (Condyle-Pogonion distance) available from the American Association of Orthodontists Foundation Craniofacial Growth Legacy Collection is analyzed. The dataset includes 160 children, 40 each in Class I and Class II groups for both sexes. A three-level Bayesian SITAR model is fitted, incorporating individual- and study-level random effects for all three growth spurt parameters.
resultsThe average mandibular size is greater in Class I than in Class II for both males [5.0 mm, 95% CI (3.0, 7.0)] and females [4.4 mm, 95% CI (3.2, 5.7)]. The growth spurt occurs later for Class I than Class II across both sexes [males: 0.6 years, 95% CI (0.3, 0.9); females: 0.6 years, 95% CI (0.2, 0.9)], and the intensity of the growth spurt is slightly greater in Class I than in Class II [males: 0.2 mm/year, 95% CI (0.0, 0.4); females: 0.2 mm/year, 95% CI (0.0, 0.4)]. The results show individual-level variation in size, timing, and intensity parameters across both Class II and Class I.
conclusionsNo evidence found for clinically meaningful class differences in the timing or intensity of the adolescent growth spurt dynamics for either sex. The mandibular deficiency observed in Class II children is established early, during the pre-adolescent growth period. The cumulative deficiency in mandibular size for Class II children worsens with age, which leads to a more pronounced skeletal discrepancy in adulthood. The clinical implications for treatment planning are discussed. LIMITATIONS: Considering the retrospective nature of the historical data analyzed, caution is warranted when generalizing our findings to contemporary populations.
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.