Wednesday, August 16, 2017

Effect of Sliver Diamine Fluoride (SDF) Application on Microtensile Bonding Strength of Dentin in Primary Teeth

Department of Pediatric Dentistry

Lutheran Medical Center

Resident’s Name: Michael Hatton                                                                                 Date: 8/16/2016
Article Title: Effect of Sliver Diamine Fluoride (SDF) Application on Microtensile Bonding Strength of Dentin in Primary Teeth
Author(s): Wu DI, Velamakanni S, Denisson J, Yaman P, Boynton JR, Papagerakis P
Journal: Pediatric Dentistry
Date: Mar/Apr 2016
Major Topic: Restorative and Preventive Dentistry
Type of Article: Case control
Main Purpose: To assess the microtensile bonding strength of composite to dentin previously treated with SDF.
Key Points: SDF application has no effect on microtensile bonding strength.
 Previously extracted primary second molars were sterilized in formalin and then prepared for analysis. The occlusals were ground flat to expose dentin and the teeth were sectioned in half, with one half receiving SDF and the other serving as a control. Composite was bonded in the usual manner and then these sections were prepared into vertical rods 1mm in cross section, which were then stressed until fracture.
There was no significant difference in bond strength between the control group and the experimental group based on force required to fracture. However, in the SDF group, fracture was more likely to occur entirely within the adhesive layer than in the control group, where the fractures were more likely to occur at the junction of the adhesive material with the dentin, implying that the dentin-adhesive bond in the SDF group may have been stronger.

The primary confounding factor of the study was that, clinically, SDF is not applied to non-carious, non-sclerotic dentin that has been ground flat in a laboratory setting. Thermocycling was not used and no effort was made to simulate aging or natural wear.

Remarks:
There was no significant difference in bond strength between the control group and the experimental group. The primary confounding factor of the study was that, clinically, SDF is not applied to non-carious, non-sclerotic dentin that has been ground flat in a laboratory setting. Thermocycling was not used and no effort was made to simulate aging or natural wear.
Assessment of Article:  Level of Evidence/Comments: II-3



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