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Randomized Clinical Trial of Four Adhesion Strategies in Posterior Restorations—18‐Month Results
Author(s) -
Delbons Flávia B.,
Perdigão Jorge,
Araujo Edson,
Melo Freire Charles A.,
Caldas Danilo D.,
Cardoso Jorge L.,
Pagani Margarida,
Borges Gilberto A.,
Lima Rodrigo B.
Publication year - 2015
Publication title -
journal of esthetic and restorative dentistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.919
H-Index - 60
eISSN - 1708-8240
pISSN - 1496-4155
DOI - 10.1111/jerd.12135
Subject(s) - dentistry , medicine , resin composite , randomized controlled trial , molar , clinical trial , adhesive , private practice , orthodontics , materials science , composite number , surgery , composite material , family medicine , layer (electronics)
Purpose To evaluate the 18‐month clinical performance of four adhesive strategies in posterior composite restorations placed in private practice. Materials and Methods Upon approval by an institutional review board, 144 restorations were inserted in 45 subjects (average age = 32.6) to treat caries lesions or to replace existing restorations in vital molars and premolars. The adhesives O pti B ond FL (three‐step etch‐and‐rinse), O pti B ond SOLO P lus (two‐step etch‐and‐rinse), O pti B ond XTR (two‐step self‐etch), and O pti B ond A ll‐in O ne (one‐step self‐etch) were applied as per manufacturer's ( K err C o.) instructions followed by a nanofilled resin composite ( F iltek Z 350 XT , 3 M ESPE ) under rubber dam isolation. Restorations were evaluated at baseline and at 18 months using United States Public Health Service ( USPHS )‐modified criteria and high‐resolution digital photographs. Statistical analyses included the M c N emar and the M ann– W hitney non‐parametric tests ( p < 0.05). Results A total of 137 restorations were evaluated after 18 months. The number of alfa ratings did not change significantly from baseline to 18 months for any of the adhesion strategies. When the 18‐month evaluation criteria were pooled by pairs of adhesives, none of the adhesives resulted in a significantly different number of alfa ratings for any of the criteria compared with the other adhesives. Conclusion Bonding strategy did not influence the clinical performance of posterior composite restorations under the clinical conditions used in this study. Clinical Significance When used in ideal clinical conditions, the composition of current dentin adhesives may be more clinically relevant than their adhesion strategy.