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Evaluation of the amounts of metal released in saliva of patients undergoing orthodontic treatment with metal or esthetic appliances

Comparative study of the nickel presence in saliva of patients em treatment with metalic or esthetic orthodontic brackets

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
REBEC
Registry ID
RBR-8ccym2
Enrollment
Unknown
Registered
2016-04-29
Start date
2014-03-01
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

Patients with malocclusion

Interventions

Patients will be seelcted and classified into three groups. Control. Patients who had never undergone orthodontic treatment
Metal. Patients undergoing between one month up to one year of orthodontic treatment, with a fixed appliance composed of stainless steel brackets, metallic archwire, and four metal bands on the perman
Esthetic. Patients undergoing between one month up to one year of orthodontic treatment with a fixed orthodontic appliance composed of self-ligating polycarbonate brackets, with metallic archwire coat
Other

Sponsors

Faculdade e Centro de Pesquisas São Leopoldo Mandic
Lead Sponsor
Fapesp - Fundação de Amparo à Pesquisa do Estado de São Paulo
Collaborator

Eligibility

Age
15 Years to 40 Years

Inclusion criteria

Inclusion criteria: Control groups consisted of patients who had never undergone movable or fixed orthodontic treatment; more than 15 years-old; both genders. Metal group consiste of patients undergoing between one month up to one year of orthodontic treatment; with a fixed appliance composed of stainless steel brackets; with metallic archwire; four metal bands on the permanent molars; more than 15 years-old; a minimum of 20 teeth with orthodontic accessories; without the use of any type of palatine or lingual devices welded to the bands; or auxiliary extra-oral orthodontic appliances; both genders. Esthetic group consisted of patients undergoing between one month up to one year of orthodontic treatment with a fixed orthodontic appliance composed of self-ligating polycarbonate brackets; with metallic archwire coated with esthetic cover; more than 15 years-old; a minimum of 20 teeth with orthodontic acessories; without the use of any type of palatine or lingual devices welded to the bands; or auxiliary extra-oral orthodontic appliances; both genders.

Exclusion criteria

Exclusion criteria: Smokers; patients with metal prosthetic parts; amalgam restorations; or with periodontal disease; those using any type of medication in the 24 hours preceding saliva sample collection; or those with a history of orthodontic treatment prior to the present treatment; more than 40 years-old.

Design outcomes

Primary

MeasureTime frame
Amount of metalic ions in saliva in ug/mL in patients with metallic bracktes will be higher than those with esthetic brackets or do not undergo orthodontic treatment

Secondary

MeasureTime frame
Patients undergoing orthodontic treatment with esthetic appliances present higher amounts of metalic ions than patientes not undergoing orthodontic treatment due to loss of esthetic coverage of the archwires in ug/mL.;Patients undergoing orthodontic treatment with esthetic appliances present higher amounts of metalic ions than patientes not undergoing orthodontic treatment due to loss of esthetic coverage of the archwires in ug/mL.

Countries

Brazil

Contacts

Public ContactRoberta Basting

Centro de Pesquisas Odontológicas São Leopodo Mandic

rbasting@yahoo.com+55(19)32113600

Outcome results

None listed

Source: REBEC (via WHO ICTRP)