Related Experiment Video
Updated: Jun 1, 2026
07:32
Measuring Maxillary Posterior Tooth Movement: A Model Assessment using Palatal and Dental Superimposition
Published on: February 23, 2024
How does tooth eruption relate to vertical mandibular growth displacement?
Sean Shih-Yao Liu1, Peter H Buschang
1Department of Orthodontics and Oral Facial Genetics, School of Dentistry, Indiana University, Indianapolis, Ind, USA. SSLiu@iupui.edu
Summary
Mandibular tooth eruption patterns closely follow mandibular growth displacements during adolescence. Dental eruption appears to adapt to or compensate for these growth changes, showing greater variability than skeletal movements.
Area of Science:
- Orthodontics
- Pediatric Dentistry
- Craniofacial Growth
Background:
- Investigating eruptive patterns of mandibular teeth.
- Assessing associations between tooth eruption and mandibular growth displacements.
Purpose of the Study:
- To analyze the relationship between mandibular growth and tooth eruption in girls.
- To understand how mandibular growth influences dental development during adolescence.
Main Methods:
- Longitudinal cephalometric analysis of 124 French-Canadian girls (ages 10-15).
- Evaluation of vertical mandibular displacement and eruption using superimpositions.
- Multilevel modeling and stepwise multiple regressions to analyze growth changes and variability.
Main Results:
- Cubic models explained 91-98% of eruption and growth displacement variations.
- Tooth eruption accelerated until age 12, then decelerated, with higher variability than growth.
- Inferior mandibular growth displacement accounted for 54% of mandibular molar eruption variation (ages 10.5-14.5).
Conclusions:
- Mandibular growth displacement and dental eruption exhibit similar adolescent patterns.
- Mandibular eruption seems to compensate for or adapt to mandibular growth displacements.
- Variability in eruption suggests a dynamic relationship with craniofacial growth.
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