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Updated: Jun 2, 2026
07:26
Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
Published on: August 22, 2022
Progressive changes in arch width from primary to early mixed dentition period: a longitudinal study.
S Sangwan1, H S Chawla, A Goyal
1Department of Pedodontics, Government Dental College, Rohtak, India. drsethisavita@gmail.com
Summary
Dental arch dimensions significantly increase from primary to mixed dentition. Understanding these growth changes is crucial for pediatric dentists in diagnosis and treatment planning.
Area of Science:
- Dentistry
- Orthodontics
- Pediatric Dentistry
Background:
- Assessing craniofacial growth is vital for diagnosing and managing dentition development.
- Longitudinal studies provide critical data on dental arch changes during childhood development.
Purpose of the Study:
- To longitudinally evaluate changes in intercanine and intermolar widths.
- To track dental arch development from the primary to early mixed dentition stages.
Main Methods:
- 38 children aged 4-5 years with normal occlusion were selected.
- Dental casts were used to measure intercanine and intermolar widths at baseline and after a 3-year follow-up.
- Paired t-test and chi-square test were used for statistical analysis.
Main Results:
- A statistically significant increase in intercanine width (3.93 ± 1.70 mm) and intermolar width (1.49 ± 1.77 mm) was observed.
- Increases occurred in both arches and sexes during the transition from primary to early mixed dentition.
- Males showed a slightly greater increase than females, though not statistically significant.
Conclusions:
- Knowledge of mixed dentition growth is essential for pediatric dentists.
- Accurate diagnosis and treatment planning in preventive and interceptive orthodontics rely on understanding these developmental changes.
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