Characterization of dentin surface after application of desensitizing agents: SEM analysis

• Main Authors: Sandra Kiss Moura (Author), Tania Christina Simões (Author), Carolina Cury Lopes (Author), Claudia Suzana da Silva (Author), André Tomazini Gomes de Sá (Author), Linda Wang (Author)
• Format: Book
• Published: Faculdade Meridional IMED, 2016-04-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.
• Notes: 2238-510X; 2238-510X; 10.18256/2238-510X/j.oralinvestigations.v4n1p33-38
• Keywords: Dental Scaling; Dentin sensitivity; Desensitizing agents; Scanning electron microscopy; Dentistry; RK1-715
• Source: Journal Of Oral Investigations, Vol 4, Iss 1, Pp 33-38 (2016)

Objective: To analyze the morphology of dentin after application of desensitizing agents. Materials and Methods: Ten third molars were sectioned to obtain 2mm thick dentin disks and divided into 4 groups (n = 5): G0 - cut with a diamond disk, G1 - Colgate® Sensitive Pro-relief™ toothpaste; G2 - Du­raflur® Fluoride varnish; G3 - biosilicate aqueous solution (Biosilicato®). After storage in dehydrated silica-gel (37°C/24h), the samples were placed on aluminum supports, coated with gold-palladium and observed under a scanning electron microscope. Post-treatment photomicrographs were obtained of the dentin. Results: In the G1 group the smear layer was observed; in the G2 and G4 groups, both the desensitizing agents and the smear layer and in the G3 group, a film of varnish. Conclusions: Different morphologies of dentin were observed after the proposed treatments for dentin hypersensitivity.