Sažetak sa skupa
Mikroleakage of Sealants Placed After Enamel Treatment With Self Etching Adhesive
Domagoj Glavina
E. Courson
Ilija Škrinjarić
M. Degrange
Sažetak
Self-etching adhesives with enamel treatment at the same time as adhesive infiltration offers simplification of the classic technique of placing sealants. Main advantages in clinical work are: non need for applying acid, and no rinsing. Aim of the study was to evaluate both the penetration an sealing ability of a sealant applied after enamel treatment with a self-etching adhesive. The study was performed on forty-five teeth divided into three groups of fifteen teeth sealed with Concise White Sealant (3M Dental Products) after enamel surface was treated as fallows: Group 1: occlusal surface etched with 37% phosphoric acid for 30 s, rinsed for 15 s and air-dried for 15 s. After drying the sealant was applied and polymerized for 20 s. Group 2: The occlusal surface treated with self-etching adhesive Prompt-L-Pop (Espe Dental AG) for 20 s and lightened for 10 s (Optilux, Demetron Research Company). The sealant was then applied and lightened for 20 s. Group 3: The occlusal surface was treated with the selfetching adhesive Promt-L-Pop for 20 s and directly folloved by sealant application, the two materials were then simultaneously lightened 20 s. All teeth were thermocycled between 5 and 55°C for 1800 cycles with dwelling time of 10 s. AgNO3 dye solution was used for microleakage testing. After dyeing the teeth were embedded in acrylic resin, sectioned (3-5 sections per sample) and photographed under a stereo-microscope (10 X). Microleakage scores were recorded using the method of Övrebö and Raadal. Non-parametric Kruskal-Wallis and Mann-Whitney tests were used for statistical analysis. The sealant penetration rate was between 87.8 - 92.1% whatever the batch with no statistical significant difference between groups. Significant statistical difference was established between the classic H3PO4 pre-etch technique and the self-etching conditioning (p = 0.003). No significant difference was found between self-etching batches
with or without polymerisation (p = 0.1234). Obtained
data lead to the conclusion that the “all in one” self-etching
adhesive Prompt-L-Pop is not as efficient as the classic
H3PO4 etching + sealant in achieving a good enamel
marginal sealing.
Ključne riječi
Hrčak ID:
3171
URI
Datum izdavanja:
15.9.2003.
Posjeta: 1.691 *