Bonding Universal Dental Adhesive to Developmentally Hypomineralised Enamel.
J Adhes Dent
; 23(6): 513-525, 2021 Dec 03.
Article
en En
| MEDLINE
| ID: mdl-34817967
ABSTRACT
PURPOSE:
To investigate the effect of pretreatment protocols involving Papacarie Duo gel and Scotchbond Universal (SU) on the microshear bond strength (µSBS) of resin composite (RC) to hypomineralised enamel (HE). MATERIALS ANDMETHODS:
Specimens of normal enamel (NE) and HE were derived from extracted hypomineralised first permanent molars (FPMs). Based on the colour of demarcated opacities, HE specimens were classified as creamy/white (CW) or yellow/brown (YB). The specimens were randomly allocated into eight groups (n = 20). Each group involved pretreatment with Papacarie Duo gel or no pretreatment, and SU applied in etch-and-rinse (E&R) or self-etch (SE) mode. All specimens were bonded with RC and subjected to µSBS testing. Failure modes were analysed using an optical microscope and SEM.RESULTS:
Comparing NE with HE, the following factors were found to be significant (p < 0.001) type of enamel substrate, deproteinising pretreatment, and etching mode. Comparing CW HE with YB HE, a significant interaction between "deproteinising pretreatment" and "etching mode" was demonstrated (p = 0.028). When subjected to the concurrent use of Papacarie Duo gel and phosphoric acid etching, HE specimens showed a significant increase in µSBS (p < 0.001).CONCLUSION:
Deproteinising pretreatment using Papacarie Duo gel followed by the application of SU in E&R mode led to increased µSBS of resin composite to HE.Palabras clave
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Base de datos:
MEDLINE
Asunto principal:
Grabado Ácido Dental
/
Recubrimiento Dental Adhesivo
Idioma:
En
Revista:
J Adhes Dent
Asunto de la revista:
ODONTOLOGIA
Año:
2021
Tipo del documento:
Article