Orthodontic Tooth Movement
Conditions
Brief summary
A split-mouth study is conducted in order to evaluate the impact of orthodontic movement on the expression of gingival crevicular fluid miRNAs related to inflammation and osteoclastogenesis during canine distalization following asymmetrical extraction treatment of upper first premolars. Samples of gingival crevicular fluid on the mesial and distal side of the canines to be examined will be performed during the baseline and during various follow-ups.
Detailed description
A split-mouth study is conducted in order to evaluate the impact of orthodontic movement on the expression of gingival crevicular fluid miRNAs related to inflammation and osteoclastogenesis during canine distalization following asymmetrical extraction treatment of upper first premolars. Orthodontic tooth movement induces bone remodeling by various signaling pathways. The variations in miRNAs expression and their impact in inflammation and osteoclastogenesis during the various stages of orthodontic tooth movements is not fully understood. 58 patients requiring asymmetrical upper first premolar extraction for orthodontic purposes have been enrolled for this split-mouth study: the canines to be distalized on the extractive site are considered as the test group, the controlateral canines (on the side without first premolar extraction) areconsidered as normal controls.
Interventions
DEVICEElastomeric powerchain
Canine distalization by engaging the elastomeric power chains onto the canine brackets.
Sponsors
University of Catania
Study design
Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
BASIC_SCIENCE
Masking
DOUBLE (Investigator, Outcomes Assessor)
Masking description
Sealed envelopes
Intervention model description
The main objective of the study is to evaluate the impact of orthodontic tooth movement on gingival crevicular fluid miRNAs related to inflammation and osteoclastogenesis.
Eligibility
Sex/Gender
ALL
Age
11 Years to 18 Years
Healthy volunteers
Yes
Inclusion criteria
* patients with excellent oral hygiene throughout the study period, * patients requiring asymmetrical maxillary first premolar extraction so monolateral canine retraction will be performed as a part of the treatment, * patients available to come back at the clinic at the times of sample collection.
Exclusion criteria
* poor oral hygiene and/or bleeding on probing, * use medications, steroids or other anti-inflammatory medications, * systemic health problems or smoking.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| miRNAs expression | 6 weeks | miRNAs expression in the gingival crevicular fluid by PCR |
Countries
Italy
Outcome results
None listed