| Seq #19 | Thursday, 13 March 2003 | |||||||||||||||||||||||||||||||||||
| 9:00 AM-11:00 AM Henry B. Gonzalez Convention Center Room 212, Symposium - Group/Division Sponsored | ||||||||||||||||||||||||||||||||||||
| Contemporary Issues In Light-Curing | ||||||||||||||||||||||||||||||||||||
| * Poster files available online | ||||||||||||||||||||||||||||||||||||
Sponsored by: Dental Materials: I - Adhesion-Composite Bond Strength, Dental Materials: IV - Clinical Trials, Dental Materials: V - Polymer Materials-Chemistry, Dental Materials: VI - Polymer Materials-Mechanical Properties and Degradation, Dental Materials: VIII - Others-Non-metallic | ||||||||||||||||||||||||||||||||||||
| Description: This symposium is designed for the advanced dental student as well as the informed researcher. Presentations are not intended to provide an exhaustive literature review, but instead will establish a platform upon which an understanding of the state of current knowledge, areas of contention, and needs for future study are provided. The symposium goal is to create an open dialog for challenging questions that may guide the paths of further work in many important areas. The presentations include the following: 1. Spectral irradiance and power density of dental light-curing units. This presentation provides a review of the electromagnetic spectrum, methods used for obtaining the spectral emission profile of light units, and the calculation of power density. Clinical importance of these factors will be addressed related to the potential for photo-curing a resin composite as well as the application of discrete amounts of energy to adequately polymerize a material. 2. Polymerization shrinkage and stress development in photo-activated dental restorative systems. The causes of, factors related to, and measurements of polymerization shrinkage and stress will be reviewed. Current methods employed to minimize shrinkage and the resulting stress, as well as the correlation of this phenomenon with possible clinical consequences will be covered. 3. Clinical perspectives of dental photo-curing. Clinical observations of successes and failures of a variety of methods used to apply visible light when placing photo-cured dental restorative materials will be covered. Aspects such as restoration longevity, marginal gap formation, tooth strain, post-insertion patient sensitivity, and overt tooth fracture will be discussed | ||||||||||||||||||||||||||||||||||||
| Chairperson: F. RUEGGEBERG | ||||||||||||||||||||||||||||||||||||
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Back to the 32nd Annual Meeting and Exhibition of the AADR (March 12-15, 2003)