Sellado marginal aplicando hipoclorito de sodio versus ácido fosfórico como acondicionador dental

César Félix Cayo Rojas, Annais Adely Cristal Carrillo Marcos

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

13 Citas (Scopus)

Resumen

Introduction: Microfiltration is one of the main problems of all resin sealings. Many studies aim to optimize marginal sealing using a variety of conditioners, such as sodium hypochlorite, which allows good penetration of the adhesive by generating deproteinization, and phosphoric acid, which allows removal of the dental smear layer, thus creating a hybrid layer when the adhesive is placed. Objective: Evaluate the marginal sealing degree of Bulk Fill resin applying 10% sodium hypochlorite gel versus 37% phosphoric acid gel in in vitro dental conditioning. Methods: The study universe was 72 teeth with class I cavities, divided into four groups of 18 teeth. Upon sealing, thermal cycling was performed at 500 cycles from 5 ºC to 55 ºC. Next the teeth were submerged in 2% methylene blue for 12 h and 24 h at a temperature of 37 ºC. Finally marginal sealing was evaluated in the stereo microscope according to ISO / TS 11405: 2015, using the following scale: grade 0 (no microfiltration), grade 1 (microfiltration as far as the enamel), grade 2 (microfiltration as far as the dentin), and grade 3 (microfiltration as far as the pulp floor). Results: Conditioning with 37% phosphoric acid was grade 0 (55.6%) and grade 1 (33.3%) at 12 h, and grade 1 (55.6%) at 24 h, whereas conditioning with 10% sodium hypochlorite was grade 0 (44.4%) at 12 h, and predominantly grade 1 (55.6 %) at 24 h. Hypothesis contrast in related samples yielded 37% phosphoric acid and 10% sodium hypochlorite at 12 h and 24 h, p= 0.052 and p= 0.584, respectively. Comparison between independent samples at 12 h and 24 h yielded p= 0.462 and p= 0.406, respectively. Conclusions: The 10% sodium hypochlorite gel has similar marginal sealing effectiveness as the 37% phosphoric acid gel when used as dental conditioners.

Título traducido de la contribuciónMarginal sealing applying sodium hypochlorite versus phosphoric acid as dental conditioner
Idioma originalEspañol
Número de artículoe2872
PublicaciónRevista Cubana de Estomatologia
Volumen57
N.º1
EstadoPublicada - 1 ene. 2020
Publicado de forma externa

Palabras clave

  • Microfiltration
  • Phosphoric acid
  • Sodium hypochlorite

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