Survival Rates of Teeth with Primary Endodontic Treatment after Core/Post and Crown Placement

Abstract

On the basis of the information available from insurance claims data, this study shows that the long-term survival rates of initial endodontic therapy are adversely affected by the delayed placement of the final restoration and full coverage crown.

<p>Survival Rates of Endodontically Treated Teeth After Placement of Definitive Coronal Restoration: 8-Year Retrospective Study</p>

“…31 In a largescale study conducted on the basis of insurance claims data, Yee et al concluded that long-term survival rates of initial root canal treatment are adversely affected by the delayed placement of the final coronal restoration. 32 Given the significance with regard to final coronal restoration and its effects on the outcome of ETT, we performed this study to investigate the effects of different types of coronal restoration and delayed placement on ETT survival. To our knowledge, there are no long-term data available on the survival of ETT or relevant studies containing a large sample size in the Middle Eastern population.…”

Fracture resistance of all‐ceramic crowns based on different preparation designs for restoring endodontically treated molars

“…Recently, reports have been published that suggest failure to provide a definitive restoration by 2 to 4 months after endodontic treatment significantly reduces tooth survival. 49,50 This reinforces the importance of expedient sealing of the obturated root canal system from the oral environment and placement of a crown or cuspalcoverage restoration.…”

“…This was reinforced by Khayat et al who showed that exposed canals obturated with lateral condensation had total contamination in 28 days while vertical condensation samples were contaminated entirely in 25 days. Recently, reports have been published that suggest failure to provide a definitive restoration by 2 to 4 months after endodontic treatment significantly reduces tooth survival …”

“…CAD/CAM advocates promote the endocrown method as providing improved ceramic adhesive bonding compared to that with amalgam or resin cores, stating that the endocrown preparation provides more dentin surface available for adhesive bonding. Some further anecdotally infer that the adhesive bond to amalgam and/or resin cores is not as effective as that to dentin, while providing expedient coronal sealing that is crucial for the success endodontic treatment . The purpose of this study was to evaluate the failure resistance of CAD/CAM generated molar endocrowns compared to amalgam‐core‐supported, all‐ceramic crowns based on different preparation dentin axial wall height (AWH) features and adhesive strategies.…”

“…Some further anecdotally infer that the adhesive bond to amalgam and/or resin cores is not as effective as that to dentin, 46 while providing expedient coronal sealing that is crucial for the success endodontic treatment. [47][48][49][50] The purpose of this study was to evaluate the failure resistance of CAD/CAM generated molar endocrowns compared to amalgam-core-supported, all-ceramic crowns based on different preparation dentin axial wall height (AWH) features and adhesive strategies. The null hypothesis was that there would be no difference in the failure resistance between the methods.…”