Histology, Intrusion, Laser, Resorption
Conditions
Keywords
root resorption, low-power laser, orthodontic tooth movement, pulp changes
Brief summary
The purpose of the study is evaluate the histological changes of the dentinal-pulp complex and root resorption in maxillary premolars with intrusive orthodontic movement under a low power laser effects.
Detailed description
Orthodontics movements can cause inflamatory changes in the pulp and external inflamatory root resorption, different methods have been suggested to control that changes as the use of the low power laser. The objective of this study is to evaluate the low power laser effect on the inflamatory pulpar change and inflamatory external root resorption in maxillary premolars with intrusive orthodontic movements of 4 ounces during 12 weeks. Total sample were 34 healthy teeth, 16 were used to evaluate the normal standar and 18 were divided in two groups, the experimental group with the low power laser effect had a dose of 18 joules after activations of the orthodontic intrusion and the control group had a simulated effect in the same orthodontic movement. Teeth were extacted after 12 weeks and histological changes were evaluated in the dentinal-pulp complex and the pesence of external inflamatory root resorption. Findins suggest that low power. Laser decreased the inflamatory changes of the dentinal - pulp complex and the severity of the external inflamatory root resorption.
Interventions
RADIATIONLow power laser in teeth after intrusive movement
Low power laser was aplied to premolar teeth under an intrusive movement to study histological changes and root resorption
OTHERSimulated laser in teeth with intrusive movements
Simulated laser in teeth with intrusive movements for histological and root resorption changes
Sponsors
Universidad de Antioquia
Study design
Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
BASIC_SCIENCE
Masking
SINGLE (Investigator)
Eligibility
Sex/Gender
ALL
Age
13 Years to 23 Years
Healthy volunteers
Yes
Inclusion criteria
* Patients with first premolar extraction indicated * Patients with no sistemic diseases * Healthy premolars with completed root and no trauma or restoration
Exclusion criteria
* Sistemics diseased * Restoration, trauma in first premolars * root uncompleted
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Teeth with intrusive movement and low power laser | 12 weeks | Histological changes and root resorption were assesed in Teeth with intrusive movement after a low power laser application |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Teeth with intrusive movements with no laser exposition | 12 weeks | Histological changes and root resorption were assesed in Teeth with intrusive movement with no laser exposition |
Countries
Colombia
Outcome results
None listed