Clinical Trial Details
— Status: Completed
Administrative data
NCT number |
NCT05814185 |
Other study ID # |
PDL distractor |
Secondary ID |
|
Status |
Completed |
Phase |
N/A
|
First received |
|
Last updated |
|
Start date |
February 1, 2021 |
Est. completion date |
October 15, 2022 |
Study information
Verified date |
April 2023 |
Source |
Al-Azhar University |
Contact |
n/a |
Is FDA regulated |
No |
Health authority |
|
Study type |
Interventional
|
Clinical Trial Summary
The aim of the present study was to evaluate the effect of two and four activations /day of
periodontal distractor on pain intensity and pulp vitality of maxillary canine.
Description:
Orthodontic therapy is generally referred to as a lengthy process because a good orthodontic
treatment normally takes 18 to 24 months to finish.
Long-term orthodontic treatment has a number of disadvantages, including as poor psychosocial
effects on patients, white spots, long-term enamel damage, gingival recession, and root
resorption.
The rate of tooth movement that can be achieved is a major determinant of orthodontic
treatment time. Many studies have been conducted to determine the pace of orthodontic tooth
movement. The majority of these studies demonstrate about 1mm of tooth movement per month.
As a result, finding treatment options that reduce treatment time without compromising
results is a main focus of orthodontic research.
The approaches for hastening tooth movement rely on inducing a biological tissue reaction.
These procedures are classified into two types based on their level of intrusion:
conservative (biological, physical, and biomechanical measures) and surgical techniques
Prostaglandins are the most often used biological agents , interleukins , leukotriene ,
vitamin D platelet rich plasma .Mechanical or physical approach include direct electrical
current , pulsed electromagnetic field , low-energy laser , and Vibration Oral surgical
procedures quicken orthodontic treatment by affecting the continuity of the alveolar bone
resulting in a decrease in bone density and a corresponding reduction in the bone's
resistance to orthodontic tooth movement . Surgical approach depends on Regional Acceleratory
Phenomenon (RAP) which is a method to speed up orthodontic treatment by accelerating bone
remodeling rates and bone density. The RAP is a series of tissue reactions that occur as a
damaged bone heals . These surgical methods including corticotomy , bone perforation ,
Distraction osteogenesis is also one of surgical methods that allow rapid canine retraction .
The technique of distraction of the periodontal ligament (PDD) was introduced for rapid tooth
movement then, dento alveolar distraction (DAD) was performed to achieve rapid tooth movement
using the principles of distraction osteogenesis The canine was distracted by distractor
twice daily for a total about 0.4 mm per day . It has been reported in literature that up to
2 mm is distracted per day (four activations of 0.5 mm each) . The distractor was activated
till the distal surface of canine became in contact with the mesial surface of second
premolar.
Previous Studies of periodontal distractor have been mainly focused on the assessment of the
rate and angular changes on retracted canine. No clinical study has attempted to investigate
pain intensity or pulp vitality for both activation protocols of periodontal distractor
during rapid canine retraction. Therefore, the aim of the present study was to evaluate the
effect of two and four activations/day of periodontal distractor on pain intensity and pulp
vitality of maxillary canine.