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Journal of Applied Oral Science
Article . 2006
Data sources: DOAJ
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Morphologic and morphometric analysis of the root canal apical third cleaning after biomechanical preparation using 3.3% Ricinus communis detergent and 1% NaOCl as irrigating solutions Análise morfológica e morfométrica da limpeza de canais radiculares após preparo biomecânico utilizando detergente derivado do óleo da mamona (Ricinus communis) a 3.3% e NaOCl a 1% como soluções irrigantes

Authors: Marcos Pozzetti Meneghin; Sylvia Maria Bin Nomelini; Manoel D. Sousa-Neto; Melissa Andreia Marchesan; Suzelei Castro França; Heid Sueli Leme dos Santos;

Morphologic and morphometric analysis of the root canal apical third cleaning after biomechanical preparation using 3.3% Ricinus communis detergent and 1% NaOCl as irrigating solutions Análise morfológica e morfométrica da limpeza de canais radiculares após preparo biomecânico utilizando detergente derivado do óleo da mamona (Ricinus communis) a 3.3% e NaOCl a 1% como soluções irrigantes

Abstract

This study evaluated, by morphologic and morphometric analyses, the cleaning of apical third of root canals instrumented with nickel-titanium rotary files using different irrigating solutions. Twenty-seven single-rooted mandibular premolars were assigned to three groups (n=9), according to the irrigating solution used: Group I, distilled and deionized water; Group II, 1% NaOCl; and Group III, 3.3% Ricinus communis detergent. Biomechanical preparation was performed with Protaper Plusâ nickel-titanium files as follows: S1, SX and S2 at the cervical and middle thirds, and 25/02, 25/04, 25/06, 30/02, 30/04 and 30/06 to complete the instrumentation, operating at 1 mm from the root apex. Irrigation was done at each file change with 2 mL of irrigating solution, totalizing 20 mL for each tooth. After biomechanical preparation, the apical thirds were serially sectioned and histologically processed. The cross-sections were examined by an optical microscope (X40) connected to a computer. The images were captured and analyzed using a computer software and submitted to morphometric analysis with aid of a grid. The percentage of debris remaining at the apical third was calculated. Data were submitted to statistical analysis by ANOVA and Tukey test. The results showed no statistically significant difference (p>0.01) between the groups irrigated with 1% NaOCl and 3.3% Ricinus communis detergent, which presented the lowest percentage of debris at the apical third, 8.49% and 10.11%, respectively. The group irrigated with distilled and deionized water had the highest percentage of debris (15.58%) and was statistically different from the other groups (pEstudou-se, por meio de análise morfológica e morfométrica, a capacidade de limpeza promovida pela instrumentação rotatória com limas Ni-Ti e irrigação com diferentes soluções. Vinte e sete pré-molares inferiores foram distribuídos em três grupos (n=9), de acordo com a solução irrigante utilizada: Grupo I, água destilada e deionizada; Grupo II, NaOCl a 1% e Grupo III, detergente derivado do óleo de mamona (Ricinus communis) a 3,3%. O preparo biomecânico foi realizado com sistema rotatório de Ni-Ti Protaper Plus, obedecendo a seguinte ordem de uso dos instrumentos: S1, SX e S2 para o terço cervical e médio, seguida do 25/02, 25/04, 25/06, 30/02, 30/04 e 35/02, completando a instrumentação todos operando 1 mm aquém do ápice. A irrigação foi realizada a cada troca de instrumento com 2 mL de solução irrigante, totalizando um volume de 20 mL para cada dente. Após o preparo biomecânico, os terços apicais dos dentes foram submetidos ao processamento histológico. Os espécimes foram analisados em microscópio óptico (40X) conectado a um computador. As imagens foram capturadas e analisadas utilizando-se softwares específicos e submetidas à análise morfométrica por meio de uma grade de integração. A porcentagem de debris presente no terço apical dos canais foi calculada. Os dados foram submetidos à análise estatística por meio de ANOVA e teste de Tukey. Os resultados do presente estudo evidenciaram que não houve diferença estatisticamente significante (p>0,01) entre os grupos irrigados com NaOCl a 1% e detergente de mamona a 3,3%, que apresentaram menor porcentagem de debris no terço apical, 8,49% e 10,11% respectivamente. O grupo irrigado com água destilada e deionizada apresentou a maior porcentagem de debris (15,58%), sendo estatisticamente diferente (p<0,01) dos outros grupos experimentais. Concluiu-se que o detergente de mamona a 3,3% apresentou efetividade semelhante ao NaOCl a 1% na remoção de debris dos canais radiculares.

Keywords

Solução irrigante, Dentistry, Irrigating solution, Root canal cleaning, RK1-715, Limpeza dos canais radiculares, Rotary instrumentation, Instrumentação rotatória, Ricinus communis

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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