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Sandblasting increases the microtensile bond strength between resin and sclerotic dentin in noncarious cervical lesions.
Zhang, Guilian; He, Wensheng; Ding, Ning; Su, Ying; Yu, Guoxia.
Afiliación
  • Zhang G; Department of Stomatology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China.
  • He W; Beijing Institute of Dental Research, Beijing Stomatological Hospital and School of Stomatology, Capital Medical University, No.4 Tiantanxili, Dongcheng District, Beijing, China.
  • Ding N; Beijing Institute of Dental Research, Beijing Stomatological Hospital and School of Stomatology, Capital Medical University, No.4 Tiantanxili, Dongcheng District, Beijing, China.
  • Su Y; Beijing Institute of Dental Research, Beijing Stomatological Hospital and School of Stomatology, Capital Medical University, No.4 Tiantanxili, Dongcheng District, Beijing, China.
  • Yu G; Department of Stomatology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China, yuguoxia@bch.com.cn.
Am J Dent ; 37(3): 121-125, 2024 Jun.
Article en En | MEDLINE | ID: mdl-38899990
ABSTRACT

PURPOSE:

To evaluate the effect of sandblasting on the microtensile strength between sclerotic dentin and resin composite.

METHODS:

32 premolars with noncarious cervical lesions (NCCLs) were collected, and the teeth were randomly assigned to the control group (C group) and the sandblasted group (S group). Teeth in the S group were sandblasted with 110 µm Al2O3 particles at a pressure of 75 psi, while those in the C group received no further treatment. The characteristics of the tooth surface were observed by scanning electron microscopy (SEM), and the relative area of open dentin tubules (OTs) was calculated by IPP6.0 software. Surface roughness (Ra) was also assessed. The noncarious cervical lesions of all teeth were restored with a resin composite and subsequently sectioned into sticks to measure the microtensile bond strength (µTBS).

RESULTS:

The mean ± SD µTBS (in MPa) of the sandblasted group was 17.9 ± 0.69 and 14.23 ± 0.44 in the control group (P< 0.05). The relative area of OTs at the gingival wall of the sandblasted group was 69.74 ± 5.23%, and 47.24 ± 7.67% in the control group (P< 0.05). The average surface roughness (µm) was 1.01 ± 0.05 in the sandblasted group and 0.16 ± 0.03 in the control group. Sandblasting could increase the bond strength of sclerotic dentin and resin restorations. CLINICAL

SIGNIFICANCE:

After sandblasting, the microtensile strength of sclerotic dentin on the surface of noncarious cervical lesions increased, prolonging the resin adhesion longevity. Sandblasting could also alleviate the pain of patients during the treatment process and achieve a minimally invasive treatment.
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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Propiedades de Superficie / Resistencia a la Tracción / Microscopía Electrónica de Rastreo / Recubrimiento Dental Adhesivo / Resinas Compuestas / Dentina Límite: Humans Idioma: En Revista: Am J Dent Asunto de la revista: ODONTOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos
Buscar en Google
Añadir a Mi BVS
Imprimir
XML
PubMed Links

Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Propiedades de Superficie / Resistencia a la Tracción / Microscopía Electrónica de Rastreo / Recubrimiento Dental Adhesivo / Resinas Compuestas / Dentina Límite: Humans Idioma: En Revista: Am J Dent Asunto de la revista: ODONTOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos