The Outcome of Endodontic Treatment: A Retrospective Study of 2000 Cases Performed by a Specialist

Imura, Noboru; Pinheiro, Éricka Tavares; Gomes, Brenda Paula Figueiredo de Almeida; Zaia, Alexandre Augusto; Ferraz, Caio Cézar Randi; Souza-Filho, Francisco José de

doi:10.1016/j.joen.2007.07.018

Cited by 228 publications

(275 citation statements)

References 34 publications

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“…The literature reports variable success percentages for retreatment ranging from 40%-100% (23); the variability of the outcome in endodontic retreatment is related to different factors: patient age and the types of teeth treated (24), the presence of alterations in the natural course of the root canals (25), the possibility of removing the coronal restorations to access the pulp chamber (2), the techniques used to remove the existing filling materials, and the possibility of repairing pathologic or iatrogenic defects (26). In a recent cohort clinical study (Toronto Study Phase 3-4) of a total of 126 teeth examined at 4 -6 years of follow-up, 104 teeth (83%) were classified as healed.…”

Section: Discussionmentioning

confidence: 99%

Efficacy of ProTaper Universal Retreatment Files in Removing Filling Materials during Root Canal Retreatment

Giuliani

Cocchetti

Pagavino

2008

Journal of Endodontics

131

137

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The aim of this study was to evaluate the efficacy of the ProTaper Universal System rotary retreatment system and of Profile 0.06 and hand instruments (K-file) in the removal of root filling materials. Forty-two extracted single-rooted anterior teeth were selected. The root canals were enlarged with nickel-titanium (NiTi) rotary files, filled with gutta-percha and sealer, and randomly divided into 3 experimental groups. The filling materials were removed with solvent in conjunction with one of the following devices and techniques: the ProTaper Universal System for retreatment, ProFile 0.06, and hand instruments (K-file). The roots were longitudinally sectioned, and the image of the root surface was photographed. The images were captured in JPEG format; the areas of the remaining filling materials and the time required for removing the gutta-percha and sealer were calculated by using the nonparametric one-way Kruskal-Wallis test and Tukey-Kramer tests, respectively. The group that showed better results for removing filling materials was the ProTaper Universal System for retreatment files, whereas the group of ProFile rotary instruments yielded better root canal cleanliness than the hand instruments, even though there was no statistically significant difference. The ProTaper Universal System for retreatment and ProFile rotary instruments worked significantly faster than the K-file. The ProTaper Universal System for retreatment files left cleaner root canal walls than the K-file hand instruments and the ProFile Rotary instruments, although none of the devices used guaranteed complete removal of the filling materials. The rotary NiTi system proved to be faster than hand instruments in removing root filling materials. (J Endod 2008;34:1381-1384

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Section: Discussionmentioning

confidence: 99%

Efficacy of ProTaper Universal Retreatment Files in Removing Filling Materials during Root Canal Retreatment

Giuliani

Cocchetti

Pagavino

2008

Journal of Endodontics

131

137

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“…It was even more critical when considering the mesiobuccal canals of maxillary molars and mesial canals of mandibular molars. The complexity of the root canal system anatomy reflects the highest degree of complexity of the obturation procedures, resulting in mayor prevalence of periapical radiolucency (4)(5)(6)20).…”

Section: Discussionmentioning

confidence: 99%

Radiographic quality of root canal fillings performed in a postgraduate program in endodontics

et al. 2010

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The aim of this study was to evaluate the standard quality of 1,347 root fillings performed by postgraduate students in Endodontics according to 3 radiographic quality parameters. The analyzed quality parameters included apical extension (AE), taper (TA) and homogeneity (HO), which received scores S2 (ideal standard), S1 (slight deviation) or S0 (accentuated deviation). A perfect filling (PF) received S2 for all parameters. In the absence of one or two S2 score, the fillings were deemed as satisfactory (SF) or deficient (DF), respectively. The results showed 51.7%, 41.5% and 6.8% of PF, SF, and DF, respectively. AE, TA, and HO presented equivalent quality parameters in root-filled canals of mandibular incisors and mandibular premolars (p>0.05). Conversely, in maxillary incisors, canines and distal root of mandibular molars, significant differences (p<0.05) were found between 2 parameters. Besides, there were significant differences (p<0.05) among the measured parameters in root-filled canals of maxillary premolars, all root canals of the maxillary molars and mesial root of the mandibular molars. AE showed the lowest frequency of S2 score for all groups. In conclusion the prevalence of perfect, satisfactory and deficient fillings varied significantly according to the root canal group. The quality parameters categorized fillings in 3 complexity degrees. AE was the most critical parameter of quality in root canal fillings.

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“…2,3,4 Results from cross-sectional studies have often associated AP with inadequate root-fillings, 5 and the quality of the root filling has been extensively documented as the most important determinant of endodontic success. 5,6,7,8,9,10,11,12,13,14 Certain authors have indicated that age, gender, social class, education, occupation and use of dental services are among the risk indicators that may be associated with the presence of apical periodontitis. 10 Other descriptive epidemiological studies have suggested that the presence of an apical lesion is dependent on tooth type.…”

Section: Introductionmentioning

confidence: 99%

Epidemiological evaluation of apical periodontitis prevalence in an urban Brazilian population

et al. 2015

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The present study aimed to assess the prevalence of apical periodontitis (AP) in an urban Brazilian population according to gender, age group and tooth type. Data were collected from clinical files containing the medical and dental histories and periapical radiographs of 1,126 patients treated at the School of Dentistry at Universidade do Estado do Rio de Janeiro between March 2000 and December 2010. A total of 15,724 periapical radiographs were evaluated. All the radiographs were evaluated by two independent, previously calibrated endodontists (kappa = 0.88). Periapical areas on the radiographs were classified as N (normal) or AR (apical radiolucency). The frequency of AP and the 95% Confidence Interval (95%CI) were calculated according to gender, age group and tooth type. Differences between groups were calculated using the Z-test at a significance level of 5% (p < 0.05). AP was present in 7.87% of the samples, with 16.70% occurring on previously endodontically treated teeth and 44.65% occurring on teeth referred for endodontic treatment (TR-RCT). The frequency of AP was higher among females (64%) than among males (35%). The central and lateral maxillary incisors were the most frequently affected teeth. The frequency of AP was higher among individuals between 30 and 49 years of age. In this population, AP was more prevalent among females and among individuals between 30 and 49 years of age, and the central and lateral maxillary incisors were the most frequently affected teeth.

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The Outcome of Endodontic Treatment: A Retrospective Study of 2000 Cases Performed by a Specialist

Cited by 228 publications

References 34 publications

Efficacy of ProTaper Universal Retreatment Files in Removing Filling Materials during Root Canal Retreatment

Efficacy of ProTaper Universal Retreatment Files in Removing Filling Materials during Root Canal Retreatment

Radiographic quality of root canal fillings performed in a postgraduate program in endodontics

Epidemiological evaluation of apical periodontitis prevalence in an urban Brazilian population

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