Análise da desintegração de cimentos endodônticos em óleo de laranja e xilol / Analysis af the disintegratian af roat canal sealers in arange oil and xylal

RESUMO

O objetivo deste estudo foi analisar a desintegração dos cimentos endodônticos à base de óxido de zinco e eugenol (Endofill®l, à base de resina epóxica (AH Plus®) e à base de resina epóxica com hidróxido de cálcio (Sealer 26®) em óleo de laranja e xilol. Foram utilizados cinco corpos de prova de cada cimento obtidos a partir de anéis de polietileno de 10 mm de diâmetro interno e 2 mm de altura. Após a permanência em estufa a 37° C, por três vezes o tempo de presa de cada cimento, os corpos de prova foram pesados e imersos em recipientes contendo Sml dos solventes por 1 hora, divididos em quatro grupos: Grupo 1- Endofill® + óleo de laranja, Grupo II - Endofill® + xilol, Grupo III - Sealer 26® + óleo de laranja, Grupo IV - Sealer 26® + xilol, Grupo V - AH Plus® + óleo de laranja e Grupo VI - AH Plus® + xilol. Após esse tempo, os corpos de prova foram dessecados e pesados novamente. A desintegração dos cimentos foi obtida pela diferença do peso dos espécimes pré e pós-imersão. Os resultados foram submetidos ao Teste t de Student pareado (p

ABSTRACT

The aim of this study was examine the disintegration of zinc oxide and eugenol-based root canal sealer (Endofill ®l, epoxy resin-based (AH Plus ®) and epoxy resin with calcium hydroxide- based (Sealer 26 ®) in orange oil and xylol. It was used five bodies of evidence for each root ca- nal selaer ma de from polyethylene rings of lOmm internal dia meter and 2 mm in height. After their stay in oven to 37 C for three times the length of prey of each cement, the bodies of evi- dence were weighed and immersed in containers containing S ml of solvents for 1 hour, divided into four groups: Group 1- Endofill ® + oil orange, Group 11- Endofill ® + xylol, Group 111- Sealer 26 ® + oil orange, Group IV - Sealer 26 ® + xylol, Group V - AH Plus ® + oil and orange Group VI - AH Plus ® + xylol. After that time, the bodies of evidence were dried and weighed again. The disintegration of sealer was obtained by the difference in weight of specimens pre-and post-immersion. The results were submitted to the paired Student's t-test (p

Asunto(s)

Cementos Dentales/uso terapéutico; Disolución/análisis

ABSTRACT

The aim of this study was examine the disintegration of zinc oxide and eugenol-based root canal sealer (Endofill ®l, epoxy resin-based (AH Plus ®) and epoxy resin with calcium hydroxide- based (Sealer 26 ®) in orange oil and xylol. It was used five bodies of evidence for each root ca- nal selaer ma de from polyethylene rings of lOmm internal dia meter and 2 mm in height. After their stay in oven to 37 C for three times the length of prey of each cement, the bodies of evi- dence were weighed and immersed in containers containing S ml of solvents for 1 hour, divided into four groups: Group 1- Endofill ® + oil orange, Group 11- Endofill ® + xylol, Group 111- Sealer 26 ® + oil orange, Group IV - Sealer 26 ® + xylol, Group V - AH Plus ® + oil and orange Group VI - AH Plus ® + xylol. After that time, the bodies of evidence were dried and weighed again. The disintegration of sealer was obtained by the difference in weight of specimens pre-and post-immersion. The results were submitted to the paired Student's t-test (p