Biomedical subjects
T D Larson
Publications and source records attributed to T D Larson.
Teaching comprehensive treatment planning within a patient-centered care model.
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The use of a direct bonded microfilled composite resin veneer.
This technique creates a direct bonded microfilled composite resin veneer that replicates the complex color distribution and surface texture of the natural tooth structure. Duplicating the complexity of natural tooth color can be repeated by recording the different layers of color used in their sequence of placement.
Use of glass ionomer restorative and microfill composite resin veneers to improve esthetics in periodontally involved teeth.
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Techniques for achieving realistic color distribution in large composite resin restorations.
A technique of using macrofilled and microfilled composite resins in conjunction with tints and opaquers has been described. The technique achieves a more realistic color distribution in large composite resin restorations, such as Class IV restorations, diastema closures, veneers, and large Class III restorations. In placing more natural distributions of color in composite resin restorations, a more pleasing appearance can be achieved.
Effect of prepared cavities on the strength of teeth.
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Microleakage of composite resin and amalgam core material under complete cast crowns.
Ninety extracted human teeth were used to compare the microleakage of composite resin over, amalgam core, and regular crown preparations under a complete cast gold crown cemented with zinc phosphate cement as determined by 2% fluorescein dye solution. Specimens were compared with and without aging after cementation in a thermal bath by cycling some of them between 4 degrees C and 60 degrees C in a 2% fluorescein dye bath and others in a similar bath held at 37 degrees C. Fluorescein dye (under ultraviolet light) demonstrated microleakage of the specimens between the crown-tooth interface and the core-tooth interface. There were no significant differences in the microleakage due to aging. The specimens held at 37 degrees C in the fluorescein dye bath showed no significant differences between the core preparations and the regular crown preparations. However, when specimens were thermally cycled between 4 degrees C and 60 degrees C, there were significant differences. With thermal cycling, the regular crown preparations were better able to resist microleakage at the crown-tooth interface than either the composite resin core or the amalgam core preparations. The results of this investigation seem to indicate a need for further evaluation of core build-ups under cemented complete gold crowns.
Effect of peroxides on teeth and tissue. Review of the literature.
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Precontoured matrix for Class V composites.
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Tooth whitening: review of the literature.
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