Selective Enamel Etching in Self-etching Adhesives: a 2-year Clinical Trial

Effectiveness of One- and Two-step Self-etching Adhesives Applied With or Without Selective Enamel Etching: a 2-year Randomized Controlled Clinical Trial

The purpose of this study is to evaluate the clinical effectiveness of non-carious cervical lesions (NCCLs) restored with two self-etching adhesive systems applied with or without selective enamel etching.

The purpose of this study is to evaluate the clinical effectiveness of non-carious cervical lesions (NCCLs) restored with two self-etching adhesive systems: Clearfil SE Bond (Kuraray Noritake, Japan) and Xeno V + (Dentsply De Trey, Germany) applied with or without 36% phosphoric acid enamel etching. Assessments were at baseline, 3, 6, 12, 18 and 24 months of clinical service.

Inclusion Criteria:

• Be at least 18 years;
• Present at least 4 NCCLs in vital teeth with margins in enamel and dentin (and its largest area in dentin), independently of teeth location;
• Non-smoking;
• Read and sign the Statement of Informed Consent.

Exclusion Criteria:

• Compromised medical history;
• Severe or chronic periodontitis;
• Extreme caries sensitivity;
• Heavy bruxism;
• Under orthodontic treatment;
• Poor oral hygiene;
• Smokers.