A Systematic Review of the Survival of Teeth Intentionally Replanted with a Modern Technique and Cost-effectiveness Compared with Single-tooth Implants. 
The aim of this study was to investigate the survival rate of teeth intentionally replanted with a modern technique and to compare their cost-effectiveness with that of single-tooth implants.  Four databases were systematically searched for articles that met inclusion criteria published between January 1966 and February 2017.  Overall survival rate of intentional replantation was determined through a meta-analysis using a random-effects model.  Cost of different procedures was determined from the 2016 American Dental Association Dental Fees Survey.  Cost-effectiveness analysis was performed for different treatment modalities.  Six studies met the inclusion criteria.  Meta-analysis resulted in a survival rate of 89.1% (95% confidence interval, 83.8%-94.4%).  Compared with a single-tooth implant, intentional replantation was more cost-effective even when custom post/core and crown are also needed.  The meta-analysis revealed a high survival rate for intentional replantation.  Although the survival rate of implants is higher, intentional replantation is a more cost-effective treatment modality.  Intentional replantation should be a treatment option discussed with patients, especially because an implant can still be placed if intentional replantation is unsuccessful.