To evaluate the quality of both root fillings and coronal restorations, using radiographic and clinical criteria, as related to the prevalence of PARL in a Belgian subpopulation.
Materials and Methods:
– Root-filled teeth were selected on panoramic radiographs of randomly selected patients attending the
Dental School. Teeth that were not tx by the preceding year were included.
– All PA radiographs were evaluated using an X-ray viewer with 5x magnification by 2 calibrated examiners. The coronal restoration, the presence of a post in the canal, the RCT and the PA conditions were scored according
to the criteria listed in Table 1.
– Teeth were divided to 4 grps: Gp.A: good endo and good coronal resto Gp.B: poor endo and good resto; Gp.C: good endo and poor coronal resto; Gp.D: poor endo and poor coronal resto.
Most Highlighted Results:
– 745 teeth were scored clinically and radiographically.
-Gp,A ( good endo with good resto) had 22.5% of AP and Gp.B (poor endo with good resto) had a 34.4% of AP with a sig diff between both grps.
-Gp.C had a 24.3% AP and Gp.D had a 43.2% of AP with a sig diff between both grps.
-Gp.D and Gp.A had a sig diff.
-Homogeneity and length of RC filling, presence of a base, and the radiographic appearance of coronal restoration sig affected the percentage of AP.
Coronal leakage may not be of such clinical impact as indicated by previous studies, provided endodontic treatment procedures are carefully carried out.