Srovnání rozhraní Dentin - pryskyřice u adhesiv totálních a samoleptacích použitím elektonové mikroskopie

Comparsion of Dentine-Resin Interface in Total-Etch and Self-Etching Adhesives Using Electron Microscopy

journal article - other

en

The important condition for the adhesive bond between dentine and composite filling is the change of dentine property from hydrophilic to hydrophobic. Substances able to accomplish this change, dentinal adhesives, have undergone complex development. Recently, the so-called self-etching adhesives have been formulated. The aim of the present paper was to compare the structural pattern of dentin/resin interface after the application of dentinal adhesives used in total- and self-etching technique. Dentinal adhesives Single bond, Prime bond, Prompt-L-pop Adper, and Xeno III were used. The former two belong to the total etch technique, the latter two to the self-etching technique. The dentin/resin interface was studied in transmission (TEM) and scanning (SEM) electron microscope. In TEM sixteen teeth were investigated, each adhesive was applied in four teeth. Under SEM forty teeth were studied, each adhesive was applied in ten teeth. The obtained results demonstrated that all the dentine adhesives studied were able to penetrate into dentinal tubules and to form a hybrid layer with the demineralized intertubular and peritubular dentine. There was no bstantial difference in morphology of the dentine/resin interface between the techniques studied. Our results suggest that the hybrid layer function of all four adhesives might be of the same quality.

Duležité podmínky pro vazbu mezi dentinovým lepidlem a plneným kompozitem je zmena vlastnosti dentinu z hydrofilní na hydrofobní. Substance schopné vykonat tuto zmenu, dentinové lepidla, podstoupily komplexní vývoj. Nedávno, tzv . -formulovanábyla samo – leptací lepidla. Cíl prítomného pojednání bylo srovnávat strukturální vzor dentinu/ rozhraní pryskyrice po použití dentinových lepidel použitých v totální- a samo --leptací technice. Dentinová lepidla byla užitá Single Bond , PrimeBond , Prompt – L – popAdper , a Xeno III. První dva patrí k Totální leptací technice, další dva k samo --leptací technice. Dentin/ rozhraní pryskyrice byla studované v transmisním (TEM) a skenovacím (SEM) elektronový mikroskop. V TEM bylo vyšetrováno šestnáct zubu, každé lepidlo bylo aplikované u ctyr zubu. Na SEM bylo studováno ctyricet zubu, každé lepidlo bylo aplikované u deseti zubu. Získané výsledky demonstrovaly že všechny studovaná dentinová lepidla byla schopná proniknout do dentinových tubulu a vytvorit hybridní vrstvu s demineralizovaného intertubularního a peritubulárního dentinu. Nebyl tam žádný podstatný rozdíl mezi morfologií rozhraní mezi dentinem /pryskyricí u studovaných technik.

The important condition for the adhesive bond between dentine and composite filling is the change of dentine property from hydrophilic to hydrophobic. Substances able to accomplish this change, dentinal adhesives, have undergone complex development. Recently, the so-called self-etching adhesives have been formulated. The aim of the present paper was to compare the structural pattern of dentin/resin interface after the application of dentinal adhesives used in total- and self-etching technique. Dentinal adhesives Single bond, Prime bond, Prompt-L-pop Adper, and Xeno III were used. The former two belong to the total etch technique, the latter two to the self-etching technique. The dentin/resin interface was studied in transmission (TEM) and scanning (SEM) electron microscope. In TEM sixteen teeth were investigated, each adhesive was applied in four teeth. Under SEM forty teeth were studied, each adhesive was applied in ten teeth. The obtained results demonstrated that all the dentine adhesives studied were able to penetrate into dentinal tubules and to form a hybrid layer with the demineralized intertubular and peritubular dentine. There was no bstantial difference in morphology of the dentine/resin interface between the techniques studied. Our results suggest that the hybrid layer function of all four adhesives might be of the same quality.

Kompozit, dentální adhezivum, TEM, SEM, adheze

Composite, Dental adhesive, TEM, SEM, Adhesion

2010

01.11.2010

Karolinum Press

Praha

1214-6994

108

4

358–367

10