Skip to content

Nano Coated Orthodontic Miniscrews for en Mass Retraction of the Upper Arch

Evaluation of Silver-Hydroxyapatite Nano-coated Versus Uncoated Orthodontic Miniscrews for en Masse Retraction of the Upper Anterior Segment: A Randomized Clinical Trial

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07521267
Enrollment
14
Registered
2026-04-09
Start date
2026-05-01
Completion date
2029-11-01
Last updated
2026-04-13

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

Conditions

Class I Malocclusion, Maxillary Prognathism, Orthodontic Tooth Movement

Brief summary

study will be directed to evaluate silver-hydroxyapatite nano-coated versus uncoated orthodontic miniscrews for en masse retraction of the upper anterior segment.

Detailed description

Silver-hydroxyapatite nanoparticles (Ag-HA NPs) have lately gained popularity in dentistry due to their unique combination of silver antibacterial activity and hydroxyapatite's osteoconductive, remineralizing characteristics. Ag-HA has shown potential in resolving two important clinical issues: infection control and anchoring stability. Coating orthodontic miniscrews with Ag-HA NPs has been demonstrated to reduce peri-implant biofilm growth by their antimicrobial effect, minimizing inflammation, and increasing osseointegration, thus increasing the long-term success of temporary anchoring devices (TADs).

Interventions

Patients will receive silver-hydroxyapatite nanocoated titanium miniscrews.These miniscrews will be placed in the maxillary bone for en masse retractonof the upper anterior teeth.

DEVICEuncoated titanium miniscrews

Patients will receive conventional uncoated titanium miniscrews of the same dimensions and design as the intervention of the group1, but without nano-coating.

Sponsors

Al-Azhar University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
14 Years to 20 Years
Healthy volunteers
No

Inclusion criteria

* Class I orthodontic cases with bimaxillary protrusion of the anterior segment of the upper jaw that need at least extraction for orthodontic treatment. * Age 14-20 years. * Good oral hygiene with healthy periodontium. * Need for an absolute skeletal anchorage. * Systemically healthy patients.

Exclusion criteria

* Patient with craniofacial anomalies (e.g, cleft lip and palate) * Presence of systemic diseases or syndromes affecting bone metabolism (e.g, osteoporosis, rickets) * Poor oral hygiene or uncooperative patients. * Extensive dental caries or untreated periodontal disease. * History of trauma or surgery affecting the maxilla or mandible.

Design outcomes

Primary

MeasureTime frameDescription
Assessment of the clinical and radiographically success rate of nanocoated versus uncoated orthodontic miniscrews after en masse retractionabout 6 monthsAssessment of the clinical and radiographically success rate of nanocoated versus uncoated orthodontic miniscrews after en masse retraction

Secondary

MeasureTime frameDescription
Assessment of the rate of en masse retraction of the anterior segment of the upper arch6 monthsAssessment of the rate of en masse retraction of the anterior segment of the upper arch.

Countries

Egypt

Contacts

CONTACTHashem Kh Al-Washali, MScCandidate
Hashemalwashali.2.209@azhar.edu.eg+01120042296
CONTACTMahmoud FA Aboelmahasen, Phd
MahmoudFathy.209@azhar.edu.eg+01222993318
STUDY_DIRECTORMahmoud FA Aboelmahasen, Phd

Faculty of Dental Medicine (Boys), Al-Azhar University, Cairo, Egypt

STUDY_DIRECTORAhmed Ak El-Awady, Phd

Faculty of Dental Medicine (Boys), Al-Azhar University, Cairo, Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 14, 2026