A Comparative Evaluation of the Efficacy of Etching by the Total Etch and Self-etch Dentin Bonding Systems in the Primary Teeth: An in vitro Study

Abstract

Objective: Early childhood caries is now affecting the children in dangerous proportions. There is a wide spread loss of the tooth material irrespective of the type of the carious lesion. Restoration of such lesions with a strong permanent bond between the dental tissues and the restorative dental materials would be a highly desirable requisite. Ultramorphological characterizations show that the interfacial morphology and the chemical characterization of the bonding systems appear to be strongly associated with each other and, therefore, observing and understanding the interfacial phenomenon and its quality would be of great importance in the selection of a dental adhesive for its use in pediatric restorative dentistry.Study design: Human primary molars, which were indicated for extraction, for an array of reasons like caries, normal exfoliation, pathological root resorption, over-retained and serial extraction, were collected for the study purpose. Total number of teeth was then equally distributed into two subgroups, each namely A1 (Prime and Bond NT) and A2 (Xeno III).Results: The type of etching pattern that was observed in group A1 (Prime and Bond NT) of Silverstone’s type II compared to the Silverstone’s type III observed in group A2 (Xeno III).Conclusion: Results of this study indicate that the use of an etchant separately followed by the application of the bonding system–Prime and Bond NT–would provide a better quality of adhesion thus improving the quality and longevity of the restoration done within the limits of enamel in primary dentition.How to cite this article: Mithiborwala SH, Chaugule V, Katge F, Poojari M, Pujari P, Pammi T. A Comparative Evaluation of the Efficacy of Etching by the Total Etch and Self-etch Dentin Bonding Systems in the Primary Teeth: An in vitro Study. Int J Clin Pediatr Dent 2015;8(1):30-36.

Crown-Root Fractures in Primary Teeth: A Case Series Study of 28 Cases

“…The bonding to the enamel could be effectively achieved determining the concentration of the acid etchant and the etching team, although the acid etching performed a selective demineralization because of morphological disposition of the enamel rods and primary aprismatic enamel. On the other hand, the bonding to dentin is more difficult due to its heterogeneous nature and presence of water, presence of smear layer and smear plugs (16). However, studies demonstrate a satisfactory survival for restorations performed in primary teeth after 48 months of follow-up (17).…”

Aplicação dos sistemas adesivos nos últimos cinco anos

“…Mithiborwala et al 45 avaliaram a eficácia do condicionamento total e auto condicionamento dentinário em dentes decíduos. Chegaram à conclusão que o sistema adesivo Prime e Bond NT, gerou um padrão de condicionamento dentário parecido com o de Silverstone do tipo II, provendo uma adesão mais adequada e uma maior longevidade à restauração.…”

Condicionamento com ácido fosfórico \"tradicional\" vs. autolimitante, por diferentes tempos, na resistência de união de um cimento resinoso fotopolimerizável convencional e de um dual autoadesivo ao esmalte bovino

“…Apesar disso, e de Silverstone et al (1975) afirmarem que o padrão tipo I é o mais comumente encontrado, em um trabalho em que se avaliou a micromorfologia da superfície do esmalte em função do condicionamento com ácido fosfórico ou com um primer acídico, observou-se maior frequência daquele do tipo II e do tipo III, respectivamente (Mithiborwala et al, 2015). A não utilização de ácido fosfórico para condicionamento prévio do esmalte, caso em que se aplicam sistemas adesivos autocondicionantes ou cimentos resinosos autoadesivos, por exemplo, já havia sido relacionada a menor resistência de união ao substrato (Kugel;Ferrari, 2000;Duarte et al, 2008;Lin et al, 2010;Sekhri et al, 2016).…”