Bader G, Lejeune S. Prospective study of two retrograde endodontic apical preparations with and without the use of CO2 laser.
ENDODONTICS & DENTAL TRAUMATOLOGY 1998;
14:75-8. [PMID:
9558519 DOI:
10.1111/j.1600-9657.1998.tb00814.x]
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Abstract
This article covers a 4-year study that reports 320 cases in which endodontic surgery was performed for residual apical lesions or lesions that could not be treated in a conventional way. Four groups of 80 teeth each were formed and they were followed up after a 12-month interval. The first group comprised cases treated with a micro bur, retrograde filling and IRM; the second, cases treated at the apical and radicular portions with a CO2 laser; the third, cases in which the retrograde cavity was prepared with an ultrasonic device instead of a micro bur; and the fourth group comprised cases treated in a similar way to the second group, i.e., cases treated at the apical and radicular portions, but with a CO2 laser instead of a micro bur. After 12 months, the results showed a better prognosis with ultrasonic treatment. Regardless of technique, the CO2 laser did not improve the healing process.
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