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Assessment of canal walls after biomechanical preparation of root canals instrumented with protaper universalTM rotary system
Aguiar, Carlos Menezes; Mendes, Daniela de Andrade; Câmara, Andréa Cruz; Figueiredo, Jose Antonio Poli de.
  • Aguiar, Carlos Menezes; Federal University of Pernambuco. Dental School. Department of Prosthodontics and Oral and Facial Surgery. Recife. BR
  • Mendes, Daniela de Andrade; Federal University of Pernambuco. Dental School. Department of Prosthodontics and Oral and Facial Surgery. Recife. BR
  • Câmara, Andréa Cruz; Federal University of Pernambuco. Department of Pharmaceutical Sciences. Recife. BR
  • Figueiredo, Jose Antonio Poli de; Pontifical Catholic University of Rio Grande do Sul. Postgraduate Program in Dentistry. Porto Alegre. BR
J. appl. oral sci ; 17(6): 590-595, Nov.-Dec. 2009. ilus, tab
Article in English | LILACS | ID: lil-534425
ABSTRACT

OBJECTIVE:

The aim of this study was to examine the instrumented walls of root canals prepared with the ProTaper UniversalTM rotary system. MATERIAL AND

METHODS:

Twenty mesiobuccal canals of human first mandibular molars were divided into 2 groups of 10 specimens each and embedded in a muffle system. The root canals were transversely sectioned 3 mm short of the apex before preparation and remounted in their molds. All root canals were prepared with ProTaper UniversalTM rotary system or with NitiflexTM files. The pre and postoperative images of the apical thirds viewed with a stereoscopic magnifier (X45) were captured digitally for further analysis. Data were analyzed statistically by Fisher's exact test and Chi-square test at 5 percent significance level.

RESULTS:

The differences observed between the instrumented and the noninstrumented walls were not statistically significant (p<0.05).

CONCLUSIONS:

The NitiflexTM files and the ProTaper UniversalTM rotary system failed to instrument all the root canal walls.
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: Root Canal Preparation / Dental Pulp Cavity Type of study: Controlled clinical trial Limits: Humans Language: English Journal: J. appl. oral sci Journal subject: Dentistry Year: 2009 Type: Article Affiliation country: Brazil Institution/Affiliation country: Federal University of Pernambuco/BR / Pontifical Catholic University of Rio Grande do Sul/BR

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Full text: Available Index: LILACS (Americas) Main subject: Root Canal Preparation / Dental Pulp Cavity Type of study: Controlled clinical trial Limits: Humans Language: English Journal: J. appl. oral sci Journal subject: Dentistry Year: 2009 Type: Article Affiliation country: Brazil Institution/Affiliation country: Federal University of Pernambuco/BR / Pontifical Catholic University of Rio Grande do Sul/BR