Predicting Transmitted Light Radiant Exposure of Fiber Dowel Cross Sections from Dowel Diameter and Length

Fiber dowel retention is required for the success of foundation restorations and overlying fixed prostheses. Many factors affect dowel retention, including the depth of cure of the cement used. Light ordual-cure resin cements are commonly used with fiber dowels. 

Fiber Dowel Cross Sections

Both cement types require light to initiate polymerization, resulting in varying degrees of conversion, or depth of cure, depending on light intensity and degradation along the length of the root canal system. Reports have shown that some dual-cure cements do not reach adequate degrees of conversion in the absence of light. The use of translucent dowels has been recommended to improve the degree of conversion in dark areas of the root canal that cannot be reached by curing light. Read more>>>>>>>>

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