use of acid-etch technique to retain the crown of an impacted tooth to act as space maintainer

ABSTRACT

In this study, we used the acid etch technique to retain the extracted crown of an impacted tooth, reinforced by pins in the extracted crown and grooves in the abutment teeth, to act as a fixed space maintainer. This work was done on 20 patients aged from 10-13 years, and followed up to 24 months, the bond remained intact in all patients, except 2 patients, rebonding was done after 4 months of treatment