Abstract
Introduction
Treatment of immature permanent teeth with necrotic pulp and apical pathosis constitutes
a challenge for endodontists. The present study was done to evaluate the effect of
age and apical diameter on the regenerative potential of young permanent immature
teeth with necrotic pulps.
Methods
Immature necrotic permanent maxillary incisors (n = 40) of patients 9–18 years old were divided into 2 groups according to the treatment
protocol: group Y (younger age group), 9–13 years and group O (older age group), 14–18 years.
Each group was further subdivided into 2 subgroups according to apical diameter, subgroup
(n) (narrower diameter) between 0.5 and 1 mm and subgroup (w) (wider diameter) equal
to or greater than 1 mm. Revascularization procedures were performed for all patients.
Follow-up was done for up to 12 months. Standardized radiographs were digitally evaluated
for increase in root length and thickness and decrease in apical diameter.
Results
After the follow-up period, most of the cases demonstrated radiographic evidence of
periapical healing. Group Y showed significant progressive increase in root length
and width and decrease in apical diameter. Subgroup (w) representing wider apical
diameter showed significant progress as well.
Conclusions
It was found that revascularization procedures can be implemented in any age ranging
from 9 to 18 years; however, younger age groups were better candidates for revascularization
procedure than older ones. Regarding the apical diameter, regeneration procedures
were successful with apical diameters as small as 0.5 mm. However, teeth with preoperative
wider diameters (≥1 mm) demonstrated greater increase in root thickness, length, and
apical narrowing.
Key Words
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Article info
Publication history
Published online: September 09, 2016
Identification
Copyright
Copyright © 2016 American Association of Endodontists.
