Chiara Pirani1, Francesco Iacono2, Maria Rosaria Gatto2, Raquel Michelle Fitzgibbon2, Stefano Chersoni2, Hagay Shemesh3, Carlo Prati2. 1. Department of Biomedical and Neuromotor Sciences (DIBINEM), School of Dentistry, Endodontic Clinical Section, Master in Clinical Endodontology, Alma Mater Studiorum University of Bologna, Via San Vitale 59, 40125, Bologna, Italy. chiara.pirani4@unibo.it. 2. Department of Biomedical and Neuromotor Sciences (DIBINEM), School of Dentistry, Endodontic Clinical Section, Master in Clinical Endodontology, Alma Mater Studiorum University of Bologna, Via San Vitale 59, 40125, Bologna, Italy. 3. Endodontology, Academic Center for Dentistry Amsterdam, University of Amsterdam and VU University, Amsterdam, Netherlands.
Abstract
OBJECTIVES: The aim of the present retrospective cohort study was to assess the 5-year outcome and survival of secondary root canal treatments (2°RCT), exploring the influence of pre-, intra-, and post-operative variables. MATERIALS AND METHODS: One hundred thirty-two endodontically retreated teeth were radiographically and clinically re-examined after 5 years. 2°RCT had been performed during a Masters program following standardized protocols and filled with AH Plus/Thermafil (TF). Pre-, intra-, and post-operative data were collected. The 5-year outcome was blindly evaluated and categorized as healed/diseased on the basis of the periapical index. Bivariate analysis and chi-square test evaluated the association between outcome and 31 demographic/clinical parameters. Multilevel analysis was performed at both patient and tooth level. Statistical significance was calculated at 5% level. RESULTS: At 5-year evaluation, survival rate was 80% with 7.5% lost for endodontic reasons. Eighty-three percent of the teeth were classified as healed. Multilevel analysis identified significant predictors of increased survival: female gender (p = 0.012), absence of a pre-operative metal post (p = 0.017), conservative apical preparation (diameter size < #35) (p = 0.039), teeth restored with a crown (p = 0.009), and final PAI (after 5 years) ≤ 2 (p = 0.001). Multilevel analysis identified as predictor healing: not being a smoker (p = 0.048) and conservative apical preparation < size #35 (p = 0.037). CONCLUSIONS: Outcome of 2°RCT filled with Thermafil was successful at 5 years, showing a high rate of survived and healed teeth comparable to that reported previously for other obturation techniques. CLINICAL RELEVANCE: Present findings confirm 2°RCT as a valid therapeutic option to retain natural teeth.
OBJECTIVES: The aim of the present retrospective cohort study was to assess the 5-year outcome and survival of secondary root canal treatments (2°RCT), exploring the influence of pre-, intra-, and post-operative variables. MATERIALS AND METHODS: One hundred thirty-two endodontically retreated teeth were radiographically and clinically re-examined after 5 years. 2°RCT had been performed during a Masters program following standardized protocols and filled with AH Plus/Thermafil (TF). Pre-, intra-, and post-operative data were collected. The 5-year outcome was blindly evaluated and categorized as healed/diseased on the basis of the periapical index. Bivariate analysis and chi-square test evaluated the association between outcome and 31 demographic/clinical parameters. Multilevel analysis was performed at both patient and tooth level. Statistical significance was calculated at 5% level. RESULTS: At 5-year evaluation, survival rate was 80% with 7.5% lost for endodontic reasons. Eighty-three percent of the teeth were classified as healed. Multilevel analysis identified significant predictors of increased survival: female gender (p = 0.012), absence of a pre-operative metal post (p = 0.017), conservative apical preparation (diameter size < #35) (p = 0.039), teeth restored with a crown (p = 0.009), and final PAI (after 5 years) ≤ 2 (p = 0.001). Multilevel analysis identified as predictor healing: not being a smoker (p = 0.048) and conservative apical preparation < size #35 (p = 0.037). CONCLUSIONS: Outcome of 2°RCT filled with Thermafil was successful at 5 years, showing a high rate of survived and healed teeth comparable to that reported previously for other obturation techniques. CLINICAL RELEVANCE: Present findings confirm 2°RCT as a valid therapeutic option to retain natural teeth.
Authors: Domenico Ricucci; John Russo; Michael Rutberg; Josef A Burleson; Larz S W Spångberg Journal: Oral Surg Oral Med Oral Pathol Oral Radiol Endod Date: 2011-12
Authors: Chiara Pirani; Gian Andrea Pelliccioni; Silvia Marchionni; Lucio Montebugnoli; Gabriela Piana; Carlo Prati Journal: J Endod Date: 2009-08-22 Impact factor: 4.171
Authors: Chiara Pirani; Fausto Zamparini; Ove A Peters; Francesco Iacono; Maria Rosaria Gatto; Luigi Generali; Maria Giovanna Gandolfi; Carlo Prati Journal: Clin Oral Investig Date: 2018-12-05 Impact factor: 3.573
Authors: Ricardo Machado; Claudemir de Souza Júnior; Matheus Felipe Colombelli; Ana Paula Picolli; Jaci Simi Junior; Leopoldo Cosme-Silva; Lucas da Fonseca Roberti Garcia; Luiz Rômulo Alberton Journal: Eur Endod J Date: 2018-07-19