Clinical Evaluation of Noncarious Cervical Lesions of Different Extensions Restored With Bulk-fill or Conventional Resin Composite: Preliminary Results of a Randomized Clinical Trial

Autor(es)

Correia, A. M. O. ^[1] ; Jurema, A. L. B. ^[1] ; Andrade, M. R. ^[2] ; Borges, A. L. S. ^[3] ; Bresciani, E. ^[1] ; Caneppele, T. M. F. ^[1]

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ UNESP, Inst Sci & Technol, Dept Restorat Dent, Acad Grp Clin Res GAPEC, Sao Jose Dos Campos, SP - Brazil

^[2] Sao Paulo State Univ UNESP, Inst Sci & Technol, Dept Restorat Dent, Sao Jose Dos Campos, SP - Brazil

^[3] Sao Paulo State Univ Unesp, Inst Sci & Technol, Dept Dent Mat & Prosthodont, Sao Jose Dos Campos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Operative Dentistry; v. 45, n. 1, p. E11-E20, JAN-FEB 2020.
• Citações Web of Science: 0

Resumo

Purpose: This randomized clinical trial evaluated the influence of the occlusogingival distance (OGD) of noncarious cervical lesions (NCCLs) on the clinical performance of a regular bulk-fill resin composite and a regular nanofilled resin composite. Methods and Materials: A total of 140 restorations were randomly placed in 77 participants by one operator. NCCLs were divided into four groups (n=35) according to OGD (1.5 mm +/- 10% or 3 mm +/- 10%) and resin composites (Filtek Bulk Fill Posterior {[}B] or Filtek Z350 XT {[}C]) used: 1.5 mm-B, 1.5 mm-C, 3 mm-B, and 3 mm-C. A two-step self-etch adhesive (Clearfil SE Bond) was applied following manufacturer instructions in all restorative procedures. Restorations were polished 1 week after placement. Clinical evaluation was performed at baseline (7 days), 6 months, and 1 year by two calibrated examiners, according to the modified US Public Health Service criteria evaluating fractures/retention, marginal staining, marginal adaptation, recurrence of caries, anatomic form, postoperative sensitivity, and surface texture. The Kruskal-Wallis test was used for intergroup comparison in each followup; the Friedman analysis of variance, followed by the least significant difference test (multiple comparisons) was used for intragroup comparison between baseline and follow-up times (alpha=0.05). Results: Two restorations were lost at 12 months (1 for 1.5 mm-B and 1 for 3 mm-B). The retention rates at 12 months were 100% for 1.5 mm-C, 97% for 1.5 mm-B, 100% for 3 mm-C; and 97% for 3 mm-B, with no statistical difference among the groups (p=0.570). At 12 months, a statistically significant difference was found among the follow-up times for the same group (1.5 mm-B, 1.5 mm-C, and 3 mm-B) regarding the marginal staining criterion; moreover, the 3 mm-C group showed a significant difference from 6 months. No significant difference was found for the other parameters. Conclusion: Both resin composites showed acceptable clinical performance, and the OGD of NCCLs did not influence the clinical performance of resin composite restorations after 12 months. (AU)

• Processo FAPESP: 16/14429-7 - Efeito da geometria cavitária de lesões cervicais não cariosas e do tipo de resina composta sobre o sucesso restaurador - observações in vitro, in silico, in vivo e revisão sistemática
• Beneficiário: Taciana Marco Ferraz Caneppele
• Modalidade de apoio: Auxílio à Pesquisa - Regular