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Comparison of the efficiency of different materials used in the manufacture of dental aligners

Comparative evaluation of the effectiveness of orthodontic aligners made with different types of materials

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
REBEC
Registry ID
RBR-7zdb29p
Enrollment
Unknown
Registered
2025-10-08
Start date
2025-08-01
Completion date
Unknown
Last updated
2025-10-27

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

Conditions

Corrective Orthodontics

Interventions

This is a two-arm, double-blinded, randomized controlled clinical trial aimed at comparing the clinical effectiveness of orthodontic aligners manufactured with different types of materials. A total of

Sponsors

Faculdade de Odontologia da Universidade de São Paulo
Lead Sponsor
Faculdade de Odontologia da Universidade de São Paulo
Collaborator

Eligibility

Age
18 Years to 35 Years

Inclusion criteria

Inclusion criteria: Mild to moderate Class I or II malocclusion (maximum 1/4 of Class II); age range between 18 and 35 years; both sexes; presence of all permanent teeth except the 3rd molars; mild to moderate degree of model discrepancy (from 2 to 6 mm); absence of skeletal crossbite

Exclusion criteria

Exclusion criteria: Severe periodontal diseases; lack of cooperation or adherence to treatment; presence of extensive prosthetic crowns; tooth shape anomalies; tooth fractures; active caries lesions; systemic diseases

Design outcomes

Primary

MeasureTime frame
Differences in the clinical efficacy of orthodontic aligners made with the two different plastic materials will be evaluated. For this evaluation, tooth movements will be compared after the first set of aligners is completed. Digital models (STL) and Ansys software will be used. Tooth movements will be considered relevant if statistically significant differences are detected for the deviation limit established as 0.5 mm for linear measurements and 2 degrees for angular measurements, considering the worst possible clinical outcome for two contiguous teeth.

Secondary

MeasureTime frame
No secundary outcomes are expected.

Countries

Brazil

Contacts

Public ContactLylian Kanashiro

Faculdade de Odontologia da Universidade de São Paulo

lkk@usp.br+551130917812

Outcome results

None listed

Source: REBEC (via WHO ICTRP)