title: Status of Endodontic Treatment and the Correlations to the Quality of Root Canal Filling and Coronal Restoration.
abstract: BACKGROUND
  This cross-sectional study evaluated the prevalence and quality of root canal treatment in 1,977 digital radiological files.
  
  
  METHODS
  Data were statistically analyzed using descriptive analysis, and the chi-square test was performed with a 5% significance level.
  
  
  RESULTS
  The mean age of the study population was 34.9 years. The endodontic treatment frequency was 6.14%, significantly higher in premolars. Adequate endodontic treatment was observed in 39.7% of analyzed cases. Molars were significantly more frequent with regard to inadequate filling quality. In 47.6% of cases, the filling's apical limit was classified as adequate, and there was a higher incidence of molars that were inadequate. Restorations were classified as adequate in 79.0% of cases, and molars were responsible for the highest frequency of inadequate restorations. The frequency of teeth with endodontic treatment that showed no periapical changes was 47.7%. There was no significant difference in the presence of periapical change according to gender. An increased presence of periapical change was observed with increasing age. The periapical lesions were observed in 45% of cases and related to inadequate filling quality. The apical limit was considered inadequate and related to periapical changes in 42% of cases. Periapical changes were present in 52% of cases, regardless of the quality of the filling and apical limit. Such changes were present in 42% of cases with adequate coronal restoration.
  
  
  CONCLUSIONS
  It can be concluded that apical periodontitis (AP) is associated with the quality of endodontic treatment. The coronal restoration affects significantly the success rate of endodontic treatment.
  
  
  CONCLUSIONS
  The quality of the root filling and coronal restoration is closely related to periapical health.
authors: Department of Post-Graduate Program in Integrated Dental Science, Dental School, University of Cuiabá, Cuiabá, Brazil.
authors: Fabio M
authors: FM
authors: Pedro
authors: Department of Post-Graduate Program in Integrated Dental Science, Dental School, University of Cuiabá, Cuiabá, Brazil.
authors: Atc
authors: A
authors: Marques
authors: Department of Post-Graduate Program in Integrated Dental Science, Dental School, University of Cuiabá, Cuiabá, Brazil.
authors: Thiago M
authors: TM
authors: Pereira
authors: Department of Post-Graduate Program in Dentistry, CEUMA University, São Luis, Brazil.
authors: Matheus C
authors: MC
authors: Bandeca
authors: Department of Post-Graduate Program in Dentistry, CEUMA University, São Luis, Brazil.
authors: Snl
authors: S
authors: Lima
authors: Department of Restorative Dentistry, School of Dentistry Universidade Estadual Paulista, Araçatuba, Brazil.
authors: Milton C
authors: MC
authors: Kuga
authors: Department of Post-Graduate Program in Integrated Dental Science, Dental School, University of Cuiabá, Cuiabá, Brazil.
authors: Mateus R
authors: MR
authors: Tonetto
authors: Department of Post-Graduate Program in Integrated Dental Science, Dental School, University of Cuiabá, Cuiabá, Brazil.
authors: Alex
authors: A
authors: Semenoff-Segundo
authors: Department of Post-Graduate Program in Integrated Dental Science, Dental School, University of Cuiabá, Cuiabá, Brazil, Phone: +556533631271, e-mail: alvarohborges@gmail.com.
authors: Alvaro H
authors: AH
authors: Borges
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D003430:Cross-Sectional Studies; D003442:Crowns; D003793:Dental Restoration, Permanent; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010483:Periapical Diseases / Q000628:therapy; D010512:Periodontal Index; D019252:Radiography, Dental, Digital; D011862:Radiography, Panoramic; D012389:Root Canal Obturation; D055815:Young Adult
keywords: Endodontics; Panoramic; Radiography Root canal preparation.