Clinical performance of whitening on devitalized teeth: a retrospective observational study

Authors

  • Ayla Correia São Paulo State University (Unesp) - Institute of Science and Technology, São José dos Campos - Department of Restorative Dentistry - São José dos Campos - SP - Brazil.
  • Felipe Matos São Paulo State University (Unesp) - Institute of Science and Technology, São José dos Campos - Department of Restorative Dentistry - São José dos Campos - SP - Brazil. http://orcid.org/0000-0001-5619-3831
  • Maria Filomena Huhtala São Paulo State University (Unesp) - Institute of Science and Technology, São José dos Campos - Department of Restorative Dentistry - São José dos Campos - SP - Brazil.
  • Eduardo Bresciani São Paulo State University (Unesp) - Institute of Science and Technology, São José dos Campos - Department of Restorative Dentistry - São José dos Campos - SP - Brazil.
  • Taciana Caneppele São Paulo State University (Unesp) - Institute of Science and Technology, São José dos Campos - Department of Restorative Dentistry - São José dos Campos - SP - Brazil.

DOI:

https://doi.org/10.14295/bds.2020.v23i1.1809

Abstract

Objective: This retrospective observational study evaluated the clinical performance of intracoronal whitening and correlated the main factors that interfere with its stability and patient satisfaction. Material and Methods: The paper was designed following the STROBE statement. Patients from the Institute of Science and Technology - ICT/UNESP database who underwent nonvital tooth whitening from August 2010 to July 2015 were selected. Data collection was performed by researching the institution records, patients interview, clinical and radiographic examination. Data were analyzed using Mann-Whitney test and Spearman's correlation (p<0.05). Results: The initial search on 1275 records resulted in 43 patients, of whom 18 were selected according to eligibility criteria. There was positive correlation only between the degree of patient’s satisfaction and the perception of color difference after whitening treatment (p<0.05). Color relapse was observed in all conditions, independently of the period of follow-up (p>0.05). There was no case of external cervical root resorption. Conclusion: Color changes after whitening influenced patient’s satisfaction. There was no correlation among the color relapse and height of gutta-percha, return interval or cause of darkening.

KEYWORDS

Tooth discoloration; Tooth nonvital; Tooth whitening.

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Published

2020-01-31

Issue

Vol. 23 No. 1 (2020): Jan. - Mar. - Published Jan. 2020

Section

Clinical or Laboratorial Research

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All manuscript's copyright ownership of the article "____________________________________________________________________" is transferred from the author(s) to the BRAZILIAN DENTAL SCIENCE, in the event the work is published. The manuscript has not been published elsewhere and that it has not been submitted simultaneously for publication elsewhere.

We hereby attest the study is original and does not present manipulated data, fraud or plagiarism. We made significant scientific contribution to the study and we are aware of the presented data and in agreement with the final version of the manuscript. We assume complete responsibility for the ethical aspects of the study.

 

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