Tooth discoloration caused by endodontic treatment: A cross‐sectional study

Introduction This cross‐sectional study evaluated the influence of endodontic filling material, cervical limit of root filling, and tooth location on the color variation (∆E00) from 1 to 60 months of follow‐up. Materials and Methods Color records were obtained from 70 participants who received 83 en...

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Published in:Journal of esthetic and restorative dentistry 2020-09, Vol.32 (6), p.569-574
Main Authors: Bosenbecker, Juliana, Barbon, Fabiola Jardim, Souza Ferreira, Nádia, Morgental, Renata Dornelles, Boscato, Noéli
Format: Article
Language:English
Subjects:
Cervix
Color
Cross-sectional studies
Dentistry
endodontic sealers
Eugenol
root canal filling materials
root canal obturation
spectrophotometry
Teeth
tooth discoloration
Zinc oxide
Zinc oxides
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Summary:Introduction This cross‐sectional study evaluated the influence of endodontic filling material, cervical limit of root filling, and tooth location on the color variation (∆E00) from 1 to 60 months of follow‐up. Materials and Methods Color records were obtained from 70 participants who received 83 endodontic treatments. CIEL*a*b* color coordinates were measured on the homologous tooth, which was considered as baseline, and on endodontic treated teeth with a spectrophotometer. ∆E00 was calculated by the CIEDE2000 method at three conditions (condition 1: homologous tooth vs endodontically treated tooth after ≤1 month; condition 2: homologous tooth vs endodontically treated tooth after >1–12 months; condition 3: homologous tooth vs endodontically treated tooth after >12 months up to 5 years) for each variable. The zinc oxide and eugenol mineral trioxide aggregate or resin‐based filling materials, dental cervix or ≥2 mm in the apical direction cervical limit of root filling and anterior or posterior tooth location were considered in the comparisons. Confidence intervals for the means (95% CI) were calculated, ∆E00 values and CIEL*a*b* individual color coordinates were compared for each pair of variables using the Student t test or Welch test (α = .05). Results Greater ∆E00 values were generally observed in the condition 3 for cervical limit (∆E00 = 10.7), use of zinc oxide and eugenol and mineral trioxide aggregate‐based filling materials (∆E00 = 10.7), and anterior teeth (∆E00 = 12.4). Only in the condition 1, the ∆E00 values of the filling materials did not show statistical differences (P = .198). Conclusions Higher ∆E00 values were yielded from zinc oxide and eugenol and mineral trioxide aggregate‐based filling materials, anterior teeth, and dental cervix cervical limit of root filling. Clinical significance Tooth discoloration yielded by endodontic materials and procedures is a challenge to clinical practice resulting in aesthetic problems and discomfort to both patient and professional, especially when it occurs in anterior teeth.
ISSN:1496-4155
1708-8240
DOI:10.1111/jerd.12572