Cost-effectiveness analysis: nonsurgical root canal treatment versus single-tooth implant.

Background: Economic evaluation of nonsurgical root canal treatment (NSRCT) and single-tooth implant (STI) provides useful information for medical decision. This retrospective study aimed to evaluate the cost-effectiveness of NSRCT versus single-tooth implant (STI) after 5-year treatment in a university affiliated hospital in Beijing, China.

Methods: 211 patients who underwent NSRCT and 142 patients who had STI were included and recalled after 5-year treatment.

Microtensile bond strength to sealer-contaminated dentin after using different cleaning protocols.

Background/purpose: Sealer residues on dentin may affect bonding to restorative materials. This study aimed to evaluate the bond strength to sealer-contaminated dentin after using different cleaning protocols.

Materials And Methods: Freshly extracted bovine incisors were prepared and exposed the buccal pulp chamber dentin, obtaining segments measuring 5 mm × 5 mm with a height of 3 mm.