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Pulpal response to intrusive orthodontic forces.
G Raiden1, L Missana, E Santamaria de Torres
1Departments of Endodontics, Oral Pathology and Orthodontics, Faculty of Dentistry, National University of Tucumán.
Acta Odontologica Latinoamericana : AOL
|March 12, 2002
Summary
Intrusive orthodontic forces caused significant dental pulp damage, including inflammation and hemorrhage. This histological study highlights potential risks to the dental pulp from orthodontic treatment.
Area of Science:
- Dentistry
- Orthodontics
- Dental Histology
Background:
- Orthodontic forces impact supporting tissues, but pulpal effects are less understood.
- Dental pulp health is crucial for tooth vitality during and after orthodontic treatment.
Purpose of the Study:
- To histologically evaluate the dental pulp response to intrusive orthodontic forces.
- To investigate changes in dental pulp tissue following controlled intrusive force application.
Main Methods:
- 40 premolars from patients aged 11-17 were used; 20 received intrusive forces (150g, 15-20 days) before extraction.
- Control teeth (n=20) were not subjected to intrusive forces.
- Teeth were processed for histological examination using hematoxylin-eosin staining and light microscopy.
Main Results:
- Histological analysis revealed alterations in predentine, calcium deposition, fibrohyalinosis, congestion, inflammation, and hemorrhage.
- Statistically significant increases (p < 0.005) in congestion, hemorrhage, and fibrohyalinosis were observed in the experimental group.
- These findings indicate a detrimental pulpal response to intrusive orthodontic forces.
Conclusions:
- Intrusive orthodontic forces can induce significant histological changes in the dental pulp.
- The study demonstrates a clear link between intrusive forces and pulpal tissue damage.
- Further research is needed to understand long-term implications and clinical management strategies.