Effect of piezocision on root resorption associated with orthodontic force: A microcomputed tomography study

Braydon M. Patterson, Oyku Dalci, Alexandra K. Papadopoulou, Suman Madukuri, Jonathan Mahon, Peter Petocz, Axel Spahr, M. Ali Darendeliler*

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    34 Citations (Scopus)


    Introduction The purpose of this study was to investigate the effect of piezocision on orthodontically induced inflammatory root resorption. Methods Fourteen patients were included in this split-mouth study; 1 side was assigned to piezocision, and the other side served as the control. Vertical corticotomy cuts of 4 to 5 mm in length were performed on either side of each piezocision premolar, and 150-g buccal tipping forces were applied to the premolars. After 4 weeks, the maxillary first premolars were extracted and scanned with microcomputed tomography. Results There was a significantly greater total amount of root resorption seen on the piezocision sides when compared with the control sides (P = 0.029). The piezocision procedure resulted in a 44% average increase in root resorption. In 5 patients, there was noticeable piezocision-related iatrogenic root damage. When that was combined with the orthodontic root resorption found on the piezocision-treated teeth, there was a statistically significant 110% average increase in volumetric root loss when compared with the control side (P = 0.005). Conclusions The piezocision procedure that initiates the regional acceleratory phenomenon may increase the iatrogenic root resorption when used in conjunction with orthodontic forces. Piezocision applied close to the roots may cause iatrogenic damage to the neighboring roots and should be used carefully.

    Original languageEnglish
    Pages (from-to)53-62
    Number of pages10
    JournalAmerican Journal of Orthodontics and Dentofacial Orthopedics
    Issue number1
    Publication statusPublished - 1 Jan 2017


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