Objectives: To compare enamel retention and microleakage both in vitro and in vivo of a modern self-etch sealant with a non self-etch sealant in order to determine the best material to seal pits and fissures. Materials and methods: Eleven caries-free molars were extracted because of periodontal disease or altered eruption. Pits and fissures of 7 molars were sealed with the self-etch sealant and analysed under a stereomicroscope for dye penetration after immersion in eosin solution; 4 molars were sealed with a classical sealant. For the in vivo evaluation, 20 permanent caries-free molars were analysed in children aged between 6 and 12 years; 10 molars were sealed with the self-etch sealant, the others with the classical sealant. Enamel retention and microleakage were evaluated after 3, 6, and 12 months. Results: Both sealants resulted efficient in the in vitro pits and fissures sealing. On the contrary, the self-etch sealant showed an increasing microleakage and loss of enamel retention in the in vivo evaluation. After 12 months, the self-etch sealant was fully retained retention in 1 molar only (10%), partially retained in 3 molars (30%), and completely lost in 6 molars (60%) Conclusions: The self-etch sealant was not efficient in sealing pits and fissures of caries-free teeth when compared with a traditional sealant. The authors conclude that the self-etching technique is not a reliable procedure for pits and fissures sealing. © 2009 Elsevier
Valutazione di un sigillante automordenzante in vitro e in vivo
M. Pasini;GIUCA, MARIA RITA
2010-01-01
Abstract
Objectives: To compare enamel retention and microleakage both in vitro and in vivo of a modern self-etch sealant with a non self-etch sealant in order to determine the best material to seal pits and fissures. Materials and methods: Eleven caries-free molars were extracted because of periodontal disease or altered eruption. Pits and fissures of 7 molars were sealed with the self-etch sealant and analysed under a stereomicroscope for dye penetration after immersion in eosin solution; 4 molars were sealed with a classical sealant. For the in vivo evaluation, 20 permanent caries-free molars were analysed in children aged between 6 and 12 years; 10 molars were sealed with the self-etch sealant, the others with the classical sealant. Enamel retention and microleakage were evaluated after 3, 6, and 12 months. Results: Both sealants resulted efficient in the in vitro pits and fissures sealing. On the contrary, the self-etch sealant showed an increasing microleakage and loss of enamel retention in the in vivo evaluation. After 12 months, the self-etch sealant was fully retained retention in 1 molar only (10%), partially retained in 3 molars (30%), and completely lost in 6 molars (60%) Conclusions: The self-etch sealant was not efficient in sealing pits and fissures of caries-free teeth when compared with a traditional sealant. The authors conclude that the self-etching technique is not a reliable procedure for pits and fissures sealing. © 2009 ElsevierI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.