Objective: To investigate the influence of caries infiltrant preconditioning on the shear bond strength of orthodontic resin cements on sound and demineralized enamel.
Materials And Methods: Stainless-steel brackets were bonded to sound or artificially demineralized (14 d, acidic buffer, pH 5.0) bovine enamel specimens using a resin cement or a combination of caries infiltrant preconditioning (Icon, DMG) and the respective resin cement (light-curing composite: Heliosit Orthodontic, Transbond XT, using either Transbond XT Primer or Transbond Plus Self Etching Primer; light-curing resin-modified glass ionomer cement: Fuji Ortho; or self-curing composite: Concise Orthodontic Bonding System). Each group consisted of 15 specimens. Shear bond strength was evaluated after thermo-cycling (10,000×, 5°C to 55°C) at a crosshead speed of 1 mm/min, and data were statistically analyzed by analysis of variance, Mann-Whitney test, and Weibull statistics. Adhesive Remnant Index (ARI) scores and enamel fractures were determined at 25× magnification and were statistically analyzed by regression analyses (P < .05).
Results: The caries infiltrant system significantly increased the shear bond strength of Transbond XT Primer, Transbond Plus Self Etching Primer, and Fuji Ortho in sound specimens, and of all resin cements except for the Concise Orthodontic Bonding System in demineralized enamel. Overall, caries infiltrant preconditioning decreased significantly the number of enamel fractures, but it did not affect ARI scores.
Conclusion: Preconditioning of sound and demineralized enamel with the caries infiltrant system did not impair but rather increased the shear bond strength of most orthodontic resin cements while decreasing the risk of enamel fracture at debonding.
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http://dx.doi.org/10.2319/052112-409.1 | DOI Listing |
BMC Oral Health
December 2024
Department of Conservative Dentistry, Faculty of Dentistry, Mansoura University, Algomhoria Street, P.O. Box 35516, Mansoura, Aldakhlia, Egypt.
Background: This study evaluated the effect of nano-silica (NS) incorporation with resin infiltrant on water sorption and solubility of resin infiltrant, mineral density of demineralized enamel, and resin tags penetration.
Methods: NS (Sigma-Aldrich, St Louis, Missouri, USA) was added into the resin infiltrant (ICON, DMG, Hamburg, Germany) at two concentrations by weight. The tested groups were: ICON (control), ICON + 0.
Cureus
October 2024
Restorative Dentistry, Faculty of Dental Medicine, Umm Al-Qura University, Makkah, SAU.
White spot lesions, characterized by opaque enamel discolorations from early carious lesions, fluorosis, or developmental issues, can be effectively managed through various treatments. Resin infiltration is a unique therapy that bridges the gap between non-invasive and invasive alternatives, potentially delaying the need for restorations by applying a low-viscosity resin that penetrates and seals the lesion, enhancing both appearance and function. This study evaluates the clinical and esthetic outcomes of resin infiltration in a 33-year-old female patient with mild dental fluorosis, who presented with white and brown discolorations on her anterior teeth and a high caries index.
View Article and Find Full Text PDFJ Appl Oral Sci
September 2024
Universidade de São Paulo, Faculdade de Odontologia, Departamento de Dentística, São Paulo, Brasil.
Objective: There are many suitable strategies for addressing caries, which is an ongoing worldwide problem. Although white spot lesions (WSLs) can be either remineralized naturally or treated with non- or micro-invasive strategies, their whitish and opaque appearance may persist. To evaluate the effects of tooth bleaching as a complement to fluoride-enhanced remineralization or resin infiltration in masking WSLs, as well as in enamel surface roughness relative to that of the adjacent enamel.
View Article and Find Full Text PDFCureus
August 2024
Orthodontics, College of Dentistry, University of Sulaimani, Sulaymaniyah, IRQ.
Int J Clin Pediatr Dent
April 2024
Department of Pediatric Dentistry, Tehran University of Medical Sciences, Tehran, Iran.
Background: Resin infiltration is a technique in which a low-viscosity resin penetrates the proximal carious lesions and stops caries progression.
Aim: This study aimed to compare the progression of proximal enamel caries of primary molars following the application of resin infiltrant clinically and radiographically vs Tooth Mousse.
Materials And Methods: This case-control split-mouth study evaluated 64 proximal surfaces of primary molars in 32 patients.
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