Does the ultrasonic activation of sealer hinder the root canal retreatment?

ConclusionsUltrasonic activation of sealer leads to a higher percentage of remaining filling material attached to the root canal walls. However, it did not affect the retreatment time.Clinical significanceUltrasonic activation increases sealer penetration into dentinal tubules, improving its resistance to dislodgement. However, there is no scientific evidence to prove if ultrasonic activation of sealer hinders its removal when root canal retreatment is necessary. 
Source: Dental Technology Blog - Category: Dentistry Source Type: news