Shortening of etching time of the dentin in primary teeth restorations: a randomized clinical trial
| Autor: | Pablo Soares de Souza, Thiago Machado Ardenghi, Tathiane Larissa Lenzi, Rachel de Oliveira Rocha, Djessica Pedrotti, Cleber Paradzinski Cavalheiro, Daniela Prócida Raggio, Luciano Casagrande |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Molar
medicine.medical_treatment Resin composite Dentistry Composite Resins Deciduous Tooth law.invention 03 medical and health sciences 0302 clinical medicine Randomized controlled trial stomatognathic system Acid Etching Dental Dente molar Etching (microfabrication) law Pediatric Dentistry Dentin medicine General Materials Science 030212 general & internal medicine Tooth Deciduous Dental Acid Etching Dental Restoration Permanent business.industry Proportional hazards model Resinas compostas RK1-715 030206 dentistry Clinical Trial medicine.anatomical_structure Dente decíduo Dentin-Bonding Agents Adper single bond 2 Dentina business Dental restoration Restauração dentária permanente |
| Zdroj: | Repositório Institucional da UFRGS Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS Brazilian Oral Research, Volume: 34, Article number: e081, Published: 15 JUL 2020 Brazilian Oral Research Brazilian Oral Research v.34 2020 Sociedade Brasileira de Pesquisa Odontológica (SBPqO) instacron:SBPQO |
| Popis: | The aim of this study was to investigate the influence of shortening of etching time for dentin on the restoration survival after selective carious tissue removal in primary molars. This two-arm randomized clinical trial included sixty-two subjects (5–8 year-old) and 100 primary molars presenting moderate dentin carious lesions on occlusal surface. The sample was randomly assigned into groups previously to adhesive application (Adper Single Bond 2; 3M ESPE): etching time recommended by manufacturer (15 s) or reduced (7 s). Resin composite (Filtek Bulk Fill Posterior Restorative; 3M ESPE) was inserted in a single increment for all restorations. Restorations were evaluated at 1, 6, 12, and 18 months using FDI criteria. Survival estimates for restorations’ longevity were evaluated with Kaplan-Meier method. Multivariate Cox regression analysis with shared frailty was used to assess the factors associated with failures (p < 0.05). The etching time did not influence the restorations’ survival (HR 0.35 95%CI 0.11–1.12; p = 0.06). Mean estimated time of survival was 17.6 months (95%CI, 17.2–17.9). The survival rates at the 18-month follow-up were 75.7% and 91.4% (AFR: 16.9% and 5.7%) when primary dentin was acid etched for 15 and 7 s, respectively (log-rank p = 0.06). In conclusion, the etching time for dentin did not influence the clinical behavior of adhesives restorations. However, there was a tendency for better clinical outcome when using etching time of 7 s. |
| Databáze: | OpenAIRE |
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