aboratory and clinical evaluation of a resin restorative system without bisphenol a used for gluing orthodontic brackets

Not Applicable

Recruiting

• Conditions: Healthy humans undergoing orthodontic treatment will be screened for assesment of bisphenol-A in salivaSpecific descriptors: Bis-Phenol A-Glycidyl Methacrylate; Endocrine Disruptors; Orthodontics; D009970; D052244; D017438

• Registration Number: RBR-33k97n
• Lead Sponsor: Faculdade de Odontologia de Ribeirão Preto

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2019-03-21
• Last Update Posted: 29 May 2023

Recruitment & Eligibility

• Status: Recruiting
• Sex: Not specified
• Target Recruitment: Not specified

Inclusion Criteria

Age between 12 and 20 years; without gender preference; with complete permanent dentition; without lesions of caries and or periodontal disease; nonsmokers who will start treatment with fixed orthodontic appliances at the Orthodontics Specialization Clinic of the School of Dentistry of Ribeirão Preto USP; Patients should be good general health; have not received restorations in composite resins and or sealants in the last three months and do not engage in occupations that may be linked to BPA exposure.

Exclusion Criteria

Patients who are not in the criteria described in the inclusion; Patients who have received restorations in composite resins and or sealants in the last three months; and patients who have occupations related to BPA exposure.

Study & Design

• Study Type: Intervention
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
It is estimated with this research that the test materials (Ambar APS adhesive and VIttra APS resin) are actually BPA free according to chromatographic chemical evaluation;It is estimated with this research that the test materials (Ambar APS adhesive and VIttra APS resin) they present good mechanical resistance compatible with orthodontic forces <br>after undergoing shear and micro-shear bond tests.

Secondary Outcome Measures

Name	Time	Method
It is estimated that the test materials presents good mechanical resistance compatible with clinical orthodontic forces (5 a 8 MPa);It is estimated that the test materials do not alter salivary levels of Bisphenol-A in patients who have orthodontic appliances fixed with the test material, condition assessed by gas chromatography and analysis of orthodontic bracket survival and adhesive remnant index.