Effect of etching on bonding of a self‐etch adhesive to dentine affected by amelogenesis imperfecta

Abstract

Aim: Dentine affected by amelogenesis imperfecta (AI) is histologically altered due to loss of hypoplastic enamel and becomes hypermineralized. In the present study, we examined the effect of additional acid etching on microtensile bond strength of a selfetch adhesive to AI-affected dentine. Methods:Flat coronal dentine obtained from extracted AI-affected and non-carious permanent molars were allocated to two groups: (a) Clearfil SE Bond (control); and (b)Clearfil SE Bond and additional etching with 34% phosphoric acid for 15 seconds. The bonded teeth were sectioned into .8-mm 2 beams for microtensile bond strength testing, and stressed to failure under tension. The bond strength data were analyzed using two-way analysis of variance (dentine type and etching step) and Student-Newman- Keuls multiple comparison test (P<.05). Representative fractured beams from eachgroup were examined under scanning electron microscopy.Results: Both factors, dentine substrate (P<.001) and etching step (P<.05), and their interactions (P<.001), were statistically significant. Additional etching had an adverse effect on the bond strength of Clearfil SE Bond to normal dentine (P<.005), and no significant improvement was found for AI-affected dentine (P=.479). Conclusion:Additional acid etching does not improve the bond strength of a self-etch adhesive to AI-affected dentine. K E Y W O R D Sacid-etching, amelogenesis imperfecta, bond strength, dentin, self-etch

“Isolated” Amelogenesis Imperfecta Associated with DLX3 Mutation: A Clinical Case

“…is network could enhance treatment options, notably an individual therapeutic approach, such as an adaptive adhesive technique, in case of MMP20 mutation [21] or new protocols to systematically and preventively recover all cuspid teeth with LAMA3 or FAM83H mutation because of the rapid and widespread loss of enamel associated with malfunction of these proteins.…”

“…This requires a strong network between geneticists and specialists of rare dental diseases to improve the correlation between genotype and phenotype and close collaboration with restorative treatment experts. This network could enhance treatment options, notably an individual therapeutic approach, such as an adaptive adhesive technique, in case of MMP20 mutation [ 21 ] or new protocols to systematically and preventively recover all cuspid teeth with LAMA3 or FAM83H mutation because of the rapid and widespread loss of enamel associated with malfunction of these proteins.…”

“Isolated” Amelogenesis Imperfecta Associated with DLX3 Mutation: A Clinical Case

“…is network could enhance treatment options, notably an individual therapeutic approach, such as an adaptive adhesive technique, in case of MMP20 mutation [21] or new protocols to systematically and preventively recover all cuspid teeth with LAMA3 or FAM83H mutation because of the rapid and widespread loss of enamel associated with malfunction of these proteins.…”

“…This requires a strong network between geneticists and specialists of rare dental diseases to improve the correlation between genotype and phenotype and close collaboration with restorative treatment experts. This network could enhance treatment options, notably an individual therapeutic approach, such as an adaptive adhesive technique, in case of MMP20 mutation [ 21 ] or new protocols to systematically and preventively recover all cuspid teeth with LAMA3 or FAM83H mutation because of the rapid and widespread loss of enamel associated with malfunction of these proteins.…”

Tratamiento conservador de un adolescente con amelogénesis imperfecta.

“…Esta ha sido reportada en la literatura desde el año 1986 (14) , muchas son sus modificaciones hasta la actualidad; este caso, en particular, propone el uso de una matriz de acetato y la inclusión de materiales dentales de última tecnología para simplificar el procedimiento clínico. Con respecto al material utilizado, existen reportes en la literatura, donde indican que las tasas de supervivencia de las restauraciones en AI fueron más altas en el tipo hipoplásico que en los otros tipos y que el principal motivo de fracaso fueron las fracturas (10) ; pero estas restauraciones no están indicadas en casos severos de AI por un problema de adhesión, la cual podría ser mejorada con la desproteinización con hipoclorito de sodio al 5% (15) . Se recomienda los controles periódicos cada tres meses para el seguimiento de las restauraciones para evitar el cambio de coloración y fracturas como las observadas en las fotos de control anual del paciente.…”

Dental Management of Genetic Dental Disorders: A Critical Review

“…Although the disease- and age-specific characteristics of dental treatment for the selected diseases cannot be discussed in detail at this point, this review revealed heterogeneous treatment strategies documented in the CR, very few in vitro studies (e.g., Yaman et al 2014 ; Epasinghe and Yiu 2018 ; Massé et al 2021 ), a widespread lack of clinical trials on adhesive bonding to structurally altered enamel and dentin, and significant information gaps in the use of digital manufacturing processes. The latter aspect appears to be of particular importance, as new digital technologies enable the planning and fabrication of customised restorations in complex situations more quickly, efficiently, and predictably.…”

“Isolated” Amelogenesis Imperfecta Associated with DLX3 Mutation: A Clinical Case

“…is network could enhance treatment options, notably an individual therapeutic approach, such as an adaptive adhesive technique, in case of MMP20 mutation [21] or new protocols to systematically and preventively recover all cuspid teeth with LAMA3 or FAM83H mutation because of the rapid and widespread loss of enamel associated with malfunction of these proteins.…”

“…This requires a strong network between geneticists and specialists of rare dental diseases to improve the correlation between genotype and phenotype and close collaboration with restorative treatment experts. This network could enhance treatment options, notably an individual therapeutic approach, such as an adaptive adhesive technique, in case of MMP20 mutation [ 21 ] or new protocols to systematically and preventively recover all cuspid teeth with LAMA3 or FAM83H mutation because of the rapid and widespread loss of enamel associated with malfunction of these proteins.…”

Tratamiento conservador de un adolescente con amelogénesis imperfecta.

“…Esta ha sido reportada en la literatura desde el año 1986 (14) , muchas son sus modificaciones hasta la actualidad; este caso, en particular, propone el uso de una matriz de acetato y la inclusión de materiales dentales de última tecnología para simplificar el procedimiento clínico. Con respecto al material utilizado, existen reportes en la literatura, donde indican que las tasas de supervivencia de las restauraciones en AI fueron más altas en el tipo hipoplásico que en los otros tipos y que el principal motivo de fracaso fueron las fracturas (10) ; pero estas restauraciones no están indicadas en casos severos de AI por un problema de adhesión, la cual podría ser mejorada con la desproteinización con hipoclorito de sodio al 5% (15) . Se recomienda los controles periódicos cada tres meses para el seguimiento de las restauraciones para evitar el cambio de coloración y fracturas como las observadas en las fotos de control anual del paciente.…”

Dental Management of Genetic Dental Disorders: A Critical Review

“…Although the disease- and age-specific characteristics of dental treatment for the selected diseases cannot be discussed in detail at this point, this review revealed heterogeneous treatment strategies documented in the CR, very few in vitro studies (e.g., Yaman et al 2014 ; Epasinghe and Yiu 2018 ; Massé et al 2021 ), a widespread lack of clinical trials on adhesive bonding to structurally altered enamel and dentin, and significant information gaps in the use of digital manufacturing processes. The latter aspect appears to be of particular importance, as new digital technologies enable the planning and fabrication of customised restorations in complex situations more quickly, efficiently, and predictably.…”

“Isolated” Amelogenesis Imperfecta Associated with DLX3 Mutation: A Clinical Case

“…is network could enhance treatment options, notably an individual therapeutic approach, such as an adaptive adhesive technique, in case of MMP20 mutation [21] or new protocols to systematically and preventively recover all cuspid teeth with LAMA3 or FAM83H mutation because of the rapid and widespread loss of enamel associated with malfunction of these proteins.…”

“…This requires a strong network between geneticists and specialists of rare dental diseases to improve the correlation between genotype and phenotype and close collaboration with restorative treatment experts. This network could enhance treatment options, notably an individual therapeutic approach, such as an adaptive adhesive technique, in case of MMP20 mutation [ 21 ] or new protocols to systematically and preventively recover all cuspid teeth with LAMA3 or FAM83H mutation because of the rapid and widespread loss of enamel associated with malfunction of these proteins.…”

Tratamiento conservador de un adolescente con amelogénesis imperfecta.

“…Esta ha sido reportada en la literatura desde el año 1986 (14) , muchas son sus modificaciones hasta la actualidad; este caso, en particular, propone el uso de una matriz de acetato y la inclusión de materiales dentales de última tecnología para simplificar el procedimiento clínico. Con respecto al material utilizado, existen reportes en la literatura, donde indican que las tasas de supervivencia de las restauraciones en AI fueron más altas en el tipo hipoplásico que en los otros tipos y que el principal motivo de fracaso fueron las fracturas (10) ; pero estas restauraciones no están indicadas en casos severos de AI por un problema de adhesión, la cual podría ser mejorada con la desproteinización con hipoclorito de sodio al 5% (15) . Se recomienda los controles periódicos cada tres meses para el seguimiento de las restauraciones para evitar el cambio de coloración y fracturas como las observadas en las fotos de control anual del paciente.…”

Dental Management of Genetic Dental Disorders: A Critical Review

“…Although the disease- and age-specific characteristics of dental treatment for the selected diseases cannot be discussed in detail at this point, this review revealed heterogeneous treatment strategies documented in the CR, very few in vitro studies (e.g., Yaman et al 2014 ; Epasinghe and Yiu 2018 ; Massé et al 2021 ), a widespread lack of clinical trials on adhesive bonding to structurally altered enamel and dentin, and significant information gaps in the use of digital manufacturing processes. The latter aspect appears to be of particular importance, as new digital technologies enable the planning and fabrication of customised restorations in complex situations more quickly, efficiently, and predictably.…”