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Relationship between molar deciduous teeth infraocclusion and mandibular growth: A case-control study
V Lanteri1, C Maspero1, P Cavone1
1Department of Biomedical, Surgical and Dental Sciences, University of Milan, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy.
European Journal of Paediatric Dentistry
|March 19, 2020
Summary
Infraocclusion in deciduous molars correlates with mandibular growth changes, including post-rotation and increased gonial angle. Early diagnosis is crucial for effective orthodontic treatment planning.
Area of Science:
- Orthodontics
- Pediatric Dentistry
- Craniofacial Growth
Background:
- Infraocclusion of deciduous molars can impact orthodontic treatment planning.
- Understanding its effects on mandibular growth is essential for predicting outcomes.
Purpose of the Study:
- To evaluate the correlation between infraocclusion of mandibular deciduous molars and mandibular growth.
- To identify cephalometric differences in patients with and without infraocclusion.
Main Methods:
- Retrospective study of 42 Caucasian patients divided into infraocclusion (Group A) and non-infraocclusion (Group B) groups.
- Cephalometric analysis using orthopantomography and lateral cephalograms to assess skeletal class, vertical dimension, and cranio-maxillo-mandibular divergence.
- Statistical analysis using Student's t-test to compare measurements between groups.
Main Results:
- Statistically significant differences were observed in the SNB angle (p<0.01), ANB angle (p<0.05), and PC-GO-GN angle (p<0.05) between groups.
- Patients with infraocclusion exhibited mandibular post-rotation and an increased total Gonial angle.
Conclusions:
- Infraocclusion of mandibular deciduous molars is associated with specific patterns of mandibular growth.
- Early diagnosis of infraocclusion is fundamental for developing well-planned orthodontic treatment strategies.
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