Two-year clinical performance of a two-step etch-and-rinse adhesive in non-carious cervical lesions Influence of subject’s age and dentin etching time

• Published in: Clinical oral investigations Vol. 19; no. 8; pp. 1867 - 1874
• Main Authors: Farias, David Cardoso Sandes, Lopes, Guilherme Carpena, Baratieri, Luiz Narciso
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.11.2015; Springer Nature B.V
• Subjects: Adult; Age Factors; Dental Cements - pharmacology; Dental Etching - instrumentation; Dental Etching - methods; Dentistry; Female; Humans; Male; Medicine; Middle Aged; Original Article; Time Factors; Randomized clinical trial; Acid etching; Dentin bonding; Etch and rinse; Non-carious cervical lesions
• ISSN: 1432-6981; 1436-3771; 1436-3771
• DOI: 10.1007/s00784-015-1399-2

Aim The aim of this study was to evaluate the influence of the subject’s age and dentin etching time on the clinical performance of a two-step etch-and-rinse adhesive in class V non-carious cervical lesions (NCCLs). Materials and methods Forty patients with NCCLs (classified as degrees 2 and 3 of dentin sclerosis) were enrolled in this study. The lesions were selected and assigned into two groups ( n  = 70/group) according to the subject’s age: (G1) between 21–35 years old and (G2) between 40–54 years old. Each group was randomly divided into two subgroups ( n  = 35/group) according to dentin etching time using recommended application time (15 s) and an extended application time (30 s). A total of 140 restorations with XP Bond (Dentsply DeTrey, Germany) were placed. The composite resin Esthet X (Dentsply) was placed incrementally. All restorations were evaluated using the modified USPHS criteria. Data was analyzed by the McNemar and chi-square tests ( p  < 0.05). Results At the end of 2 years, 132 restorations (94.2 % recall rate) were evaluated. The 24-month retention rates (%) were 93.5 for G1(15), 97.1 for G1(30), 93.9 for G2(15), and 97.0 for G2(30). There were no statistical differences in the retention rates in each recall period among groups. Conclusion For the selected age groups, neither the subject’s age nor the etching time had any influence on the clinical performance of XP Bond adhesive in NCCLs over a 24-month period. Clinical relevance The clinical effectiveness of the XP Bond was excellent after 2 years of clinical service. Long-term clinical evaluations are necessary to confirm this finding.