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Influence of protaper finishing files and sodium hypochlorite on cleaning and shaping of mandibuldar central incisors: a histological analysis
Baratto-Filho, Flares; Leonardi, Denise Piotto; Zielak, João César; Vanni, José Roberto; Sayão-Maia, Sandra Maria Alves; Sousa-Neto, Manoel D.
  • Baratto-Filho, Flares; s.af
  • Leonardi, Denise Piotto; s.af
  • Zielak, João César; s.af
  • Vanni, José Roberto; s.af
  • Sayão-Maia, Sandra Maria Alves; s.af
  • Sousa-Neto, Manoel D; s.af
J. appl. oral sci ; 17(3): 229-233, May-June 2009. ilus
Article in English | LILACS | ID: lil-514039
ABSTRACT

OBJECTIVE:

This study investigated the influence of the last apical instrument of the ProTaper system with and without 2.5% sodium hypochlorite for cleaning mandibular central incisors. MATERIAL AND

METHODS:

Thirty two mandibular central incisors were divided into six study groups Group I - F1 instrument with 2.5% sodium hypochlorite; Group II - F1 and F2 with 2.5% sodium hypochlorite; Group III - F1, F2 and F3 with 2.5 percent sodium hypochlorite; Group IV - F1 with distilled water; Group V - F1 and F2 with distilled water; Group VI - F1, F2 and F3 with distilled water. The two remaining teeth comprised the negative control group. The specimens were prepared following the principles of the technique suggested by the manufacturer and then submitted to histological preparation and morphometric analysis. Data were analyzed statistically by the Kruskal Wallis test at 1% significance level.

RESULTS:

There was statistically significant difference (p<0.01) between all study groups, except between Groups I and VI.

CONCLUSIONS:

It was concluded that no technique allowed complete cleaning of the root canals. However, the technique of finishing preparation of the apical third with the F3 instrument with 2.5% sodium hypochlorite irrigation was the most effective.
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: Root Canal Irrigants / Root Canal Preparation / Dental Instruments Type of study: Evaluation studies Limits: Humans Language: English Journal: J. appl. oral sci Journal subject: Dentistry Year: 2009 Type: Article

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Full text: Available Index: LILACS (Americas) Main subject: Root Canal Irrigants / Root Canal Preparation / Dental Instruments Type of study: Evaluation studies Limits: Humans Language: English Journal: J. appl. oral sci Journal subject: Dentistry Year: 2009 Type: Article