Histological Change of The Dentinal-Pulp Complex and Root Resorption

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1/PHASE2

Total Enrollment

34 participants

Study Classification

INTERVENTIONAL

Study Start Date

2006-06-30

Study Completion Date

2009-05-31

Brief Summary

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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.

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Detailed Description

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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.

Conditions

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Laser Intrusion Histology Resorption

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

SINGLE

Investigators

Study Groups

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Teeth with intrusive movement and low power laser

Histological changes and root resorption were assesed in Teeth with intrusive movement after a low power laser application

Group Type EXPERIMENTAL

Low power laser in teeth after intrusive movement

Intervention Type RADIATION

Low power laser was aplied to premolar teeth under an intrusive movement to study histological changes and root resorption

Teeth with intrusive movements with no laser

Histological changes and root resorption in Teeth with intrusive movements with no laser

Group Type EXPERIMENTAL

Simulated laser in teeth with intrusive movements

Intervention Type OTHER

Simulated laser in teeth with intrusive movements for histological and root resorption changes

Interventions

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Low 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

Intervention Type RADIATION

Simulated laser in teeth with intrusive movements

Simulated laser in teeth with intrusive movements for histological and root resorption changes

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Patients with first premolar extraction indicated
* Patients with no sistemic diseases
* Healthy premolars with completed root and no trauma or restoration