Laser Etching Effect on Application Mode of Universal Adhesive

Clinical Evaluation of Cervical Composite Restorations Placed Using Universal Adhesive in Different Modes and Different Etching Methods

To evaluate the clinical performance of the restorations by applying the universal adhesive in different modes under the influence of different surface treatments, with Erbium Chromium:Yttrium-Scandium-Gallium-Garnet (Er,Cr:YSGG) laser and acid etching in non-carious cervical lesions.

Forty-one patients (at least five non-carious cervical lesions) have participated in this study. The non-carious cervical lesions in each patient were divided into five groups (total-etch mode with phosphoric acid, selective-etch mode with phosphoric acid, total-etch mode with laser, selective-etch mode with laser and self-etch mode) according to different modes and application methods of universal adhesive (Clearfil Universal Bond Quick, Kuraray). Lesions were restored with a resin composite, Clearfil Majesty ES-2 (Kuraray). All restorative procedures were performed by a single operator. Restorations were evaluated at one week (baseline), at 6-, 12-, 18- and 24-month according to modified USPHS criteria (retention, marginal discoloration, marginal adaptation, color match, postoperative sensitivity, and secondary caries) by two experienced and calibrated investigators.

Inclusion Criteria:

• Participants were 18 years of age or older,
• no possible health problems (such as allergies) related to resin-based restorations,
• good general health,
• having at least five non-carious cervical lesions.
• The depth of the lesions were at least 1 mm, without carious, not previously restored, having teeth with vital, enamel and dentin tissue.

Exclusion Criteria

• Participant had fewer than 20 teeth,
• having poor oral hygiene,
• uncontrolled periodontal disease,
• xerostomia,
• pregnancy or breastfeeding possible health problems (such as allergy) related to resin-based restorations,
• having bleaching treatment or orthodontic treatment.