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

University of Guarulhos

Status: Completed

Conditions: Selective Enamel Etching in Dental Restorations

Treatments: Drug: Selective enamel etching with 36% phosphoric acid; Drug: No selective enamel etching with 36% phosphoric acid; Device: Xeno V; Device: Clearfil SE Bond

Study type: Interventional

Funder types: Other

Identifiers

NCT02419157

PRGRE 2015

Details and patient eligibility

About

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.

Full description

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.

Enrollment: 25 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

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.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: Double Blind

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25 participants in 4 patient groups

Clearfil SE Bond Etch (CSE-E)

Active Comparator group

Description:

CSE-E (n=28): After shade selection, teeth were restored under relative isolation. Lesions were cleaned with pumice and water in a rubber cup followed by rinsing and drying. An enamel bevel of 1-2 mm was prepared with a diamond bur operated in a high-speed handpiece under air-water spray. Enamel margins were selectively etched with 36% phosphoric acid for 15s and subsequently thoroughly rinsed and air-dried. Adhesive system was applied according to manufacturers' instructions and light-cured with an LED for 10s. NCCLs were restored incrementally with a microhybrid composite resin. Increments were light cured for 20s. Afterwards, retraction cord was removed and finishing and polishing were performed with rubber points. Selective enamel etching with 36% phosphoric acid

Treatment:

Device: Clearfil SE Bond

Drug: Selective enamel etching with 36% phosphoric acid

Xeno V+ Etch (XV-E)

Active Comparator group

Description:

XV-E (n=28): After shade selection, teeth were restored under relative isolation. Lesions were cleaned with pumice and water in a rubber cup followed by rinsing and drying. An enamel bevel of 1-2 mm was prepared with a diamond bur operated in a high-speed handpiece under air-water spray. Enamel margins were selectively etched with 36% phosphoric acid for 15s and subsequently thoroughly rinsed and air-dried. Adhesive system was applied according to manufacturers' instructions and light-cured with an LED for 10s. NCCLs were restored incrementally with a microhybrid composite resin. Increments were light cured for 20s. Afterwards, retraction cord was removed and finishing and polishing were performed with rubber points. Selective enamel etching with 36% phosphoric acid

Treatment:

Device: Xeno V

Drug: Selective enamel etching with 36% phosphoric acid

Clearfil SE Bon Non-etch (CSE-NE)

Active Comparator group

Description:

CSE-NE (n=28): After shade selection, teeth were restored under relative isolation. Lesions were cleaned with pumice and water in a rubber cup followed by rinsing and drying. An enamel bevel of 1-2 mm was prepared with a diamond bur operated in a high-speed handpiece under air-water spray. Adhesive system was applied according to manufacturers' instructions and light-cured with an LED for 10s. NCCLs were restored incrementally with a microhybrid composite resin. Increments were light cured for 20s. Afterwards, retraction cord was removed and finishing and polishing were performed with rubber points. No selective enamel etching with 36% phosphoric acid

Treatment:

Device: Clearfil SE Bond

Drug: No selective enamel etching with 36% phosphoric acid

Xeno V+ Non-etch (XV-NE)

Active Comparator group

Description:

XV-NE (n=28): After shade selection, teeth were restored under relative isolation. Lesions were cleaned with pumice and water in a rubber cup followed by rinsing and drying. An enamel bevel of 1-2 mm was prepared with a diamond bur operated in a high-speed handpiece under air-water spray. Adhesive system was applied according to manufacturers' instructions and light-cured with an LED for 10s. NCCLs were restored incrementally with a microhybrid composite resin. Increments were light cured for 20s. Afterwards, retraction cord was removed and finishing and polishing were performed with rubber points. No selective enamel etching with 36% phosphoric acid

Treatment:

Device: Xeno V

Drug: No selective enamel etching with 36% phosphoric acid