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Bilogical Assesment During Intrusion of Lower Incisors

Assessment of the Biological Response of the Corticision During Intrusion of Lower Incisors A Prospective Clinical Study

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07514403
Enrollment
16
Registered
2026-04-07
Start date
2026-04-01
Completion date
2027-08-01
Last updated
2026-05-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Orthodontic Treatment Efficiency

Keywords

Orthodontics Malocclusion Corticision

Brief summary

biological assesment during intrusion of lower incisors

Detailed description

Assessment of the biological response of the corticision during intrusion of lower incisors A prospective clinical study

Interventions

1. Prior panoramic x-ray or serial periapical x-rays are essential to assure the availability of interradicular room to carry out the procedure. 2. Preoperative antiseptic mouthwash is administered to prevent potential infections. 3. Infiltration anesthesia is applied. 4. A reinforced 15T scalpel is positioned on the interradicular attached gingiva at an inclination of 45-60 degrees on the long axis of the tooth to be moved.

Sponsors

Al-Azhar University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
14 Years to 18 Years
Healthy volunteers
Yes

Inclusion criteria

* Patients requiring extraction-based orthodontic treatment * Presence of deep overbite requiring lower incisor intrusion * Age range: 18-30 years * Good general health * Good oral hygiene

Exclusion criteria

* Systemic diseases affecting bone metabolism * Previous orthodontic treatment * Periodontal disease * Smoking * Pregnancy or lactation

Design outcomes

Primary

MeasureTime frameDescription
Gingival crevicular fluid (GCF) prostaglandin E2 (PGE2) levels measured by enzyme-linked immunosorbent assay (ELISA) (pg/mL)12 weeksGCF samples will be collected from lower incisors using microcapillary tubes at baseline and during follow-up visits. Prostaglandin E2 levels will be quantified using ELISA kits and expressed in pg/mL to assess the biological response to corticision-assisted intrusion.

Secondary

MeasureTime frameDescription
Amount of lower incisor intrusion measured in millimeters (mm) using cone beam computed tomography (CBCT)12 weeksCBCT imaging will be used to measure the vertical displacement of lower incisors in millimeters by comparing pre- and post-treatment positions.
External apical root resorption measured in millimeters (mm) using cone beam computed tomography (CBCT)Time Frame: 12 weeksCBCT imaging will be used to assess external apical root resorption by comparing root lengths before and after treatment.

Contacts

CONTACTalaa eldin elshahat shafay, post gradute student
alaaelshafay9@gmail.com+201016886788
CONTACTMahmoud Fathy Aboelmahasen, lecturer
MahmoudFathy.209@azhar.edu.eg01222993381
STUDY_DIRECTORRamadan Yu Abu-shahba, professor

Al-Azhar University, Faculty of Dental Medicine

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 6, 2026