EFFECT OF LIGHT CURING UNITS AND STORAGE TIME ON THE DEGREE OF CONVERSION OF FISSURE SEALANTS

Autores

  • Gul Tosun
  • Nilgun Ozturk
  • Yagmur Sener
  • Beniz Gunduz

DOI:

https://doi.org/10.7213/aor.v5i2.23246

Palavras-chave:

Degree of conversion, Fissure sealant, Light curing unit, Storage, Artificial saliva

Resumo


OBJECTIVE: To investigate the effect of light curing units and storage time on the degree of conversion of fissure sealants. MATERIAL AND METHOD: Three different fissure sealants were used: a resin-based pit and fissure sealant (Clinpro SealantTM), a polyacid modified resin composite (Dyract SealTM), and a resin modified glass ionomer cement (VitremerTM). Each fissure sealant was polymerized with a halogen, high intensity quartz tungsten halogen, LED. Half of the specimens were tested to assess the degree of conversion immediately after polymerization and the others after one month’s storage in artificial saliva. The degree of conversion was measured by FTIR. The data were analyzed using two way ANOVA. RESULTS: Statistical analysis of Dyract SealTM showed significant differences between the DC values of samples tested immediately and again after one month’s storage (p < 0.05). The DC values of ClinproTM increased after the storage period (p < 0.05). The DC of VitremerTM showed no change after storage (p > 0.05). Results of the curing units testing showed no significant differences among the DC of samples polymerized with LED, HQTH, OTH tested immediately and again after one month for Dyract SealTM, VitremerTM and Clinpro SealantTM (p > 0.05). CONCLUSION: Light curing units had no effect on the degree of conversion of the fissure sealants. But storage after initial light activation and polymerization for one month in artificial saliva can affects on DC of fissure sealants.

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Publicado

2009-11-29

Como Citar

Tosun, G., Ozturk, N., Sener, Y., & Gunduz, B. (2009). EFFECT OF LIGHT CURING UNITS AND STORAGE TIME ON THE DEGREE OF CONVERSION OF FISSURE SEALANTS. Archives of Oral Research, 5(2). https://doi.org/10.7213/aor.v5i2.23246

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