Correlation between Bond Strength to Dentin and Sealers Penetration by Push-Out Test and CLSM Analysis
| Autor: | Mabel Rodriguez Cordeiro, Cleonice da Silveira Teixeira, Maybell Tedesco, Ana Maria Hecke Alves, Eduardo Antunes Bortoluzzi, Marcelo Carvalho Chain, Wilson Tadeu Felippe, Lucas da Fonseca Roberti Garcia |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
medicine.medical_specialty
030303 biophysics root canal filling materials Root Canal Filling Materials 03 medical and health sciences 0302 clinical medicine MTA-Fillapex Push out test Materials Testing Dentin medicine General Dentistry 0303 health sciences Microscopy Confocal biology Chemistry Bond strength Epoxy Resins Significant difference 030206 dentistry Penetration (firestop) Gutta-percha biology.organism_classification Endodontics Root Canal Therapy endodontics medicine.anatomical_structure confocal Gutta-Percha root canal obturation Nuclear chemistry |
| Zdroj: | Brazilian Dental Journal v.30 n.6 2019 Brazilian Dental Journal Fundação Odontológica de Ribeirão Preto (FUNORP) instacron:FUNORP Brazilian Dental Journal, Volume: 30, Issue: 6, Pages: 555-562, Published: 28 NOV 2019 |
| Popis: | This study correlated the bond strength (BS) and dentin penetration of different sealers by push-out test and Confocal Laser Scanning Microscopy (CLSM) analysis. Forty-five root canals were prepared according to the crown-down technique and filled with gutta-percha associated to the following sealers (n=15): Endofill, AH Plus and MTA Fillapex. Five canals of each group were filled with the sealers added with 0.1% Rhodamine B dye. Next, the specimens were transversely sectioned and submitted to the push-out test (n=10) and CLSM analysis (n=5). The BS data showed the following means (MPa) and standard deviation: AH Plus (4.17±1.86); MTA Fillapex (3.13±1.96) and Endofill (2.10±1.03). Statistical analysis (two-way ANOVA, α=0.05) showed significant difference among sealers (p0.05), however, they were statistically different from AH Plus (p0.05), and both were different from coronal portion (p0.05). AH Plus group had higher BS to dentin, and deeper tags formation than the other sealers. There was no significant correlation between BS and intratubular penetration of the tested sealers. Resumo Este estudo correlacionou a resistência de união (RU) e a penetração de cimentos de diferentes bases à dentina radicular por meio do teste push-out e da análise por microscopia Confocal a laser (MCL). Quarenta e cinco canais radiculares foram preparados pela técnica coroa-ápice e obturados com guta-percha associada aos seguintes cimentos (n=15): Endofill, AH Plus e MTA Fillapex. Para análise por MCL da penetração dos cimentos, cinco canais foram obturados com os cimentos manipulados com Rodamina B a 0,1%. Em seguida, os espécimes foram seccionados transversalmente e submetidos ao teste de push-out (n=10) e análise por MCL (n=5). Os dados da RU apresentaram as seguintes médias (MPa) e desvio padrão: AH Plus (4,17±1,86); MTA Fillapex (3,13±1,96) e Endofill (2,10±1,03). A análise estatística (two-way ANOVA, α=0,05) mostrou diferença significativa entre os cimentos (p0,05), no entanto, foram estatisticamente diferentes de AH Plus (p0,05), e ambas foram diferentes da região cervical (p |
| Databáze: | OpenAIRE |
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