Original Article

Penilaiankebersihansepertigaapikaldindingsaluranakardarismearlayer dengan menggunakan rotary instrument dengan disain convex triangular dan rectangular cross section (Hygiene assessment on apical third of root canal wall of smear layer using rotary instrument design convex triangular and rectangular cross section)

Nurni Amda , Juni Jekti N, Aries Chandra Trilaksana, Christine Anastasia Rovani, Nurhayaty Natsir, Indrya Kirana Mattulada

Nurni Amda
Poli Gigi RS Wahidin Sudirohusodo/Pendidikan Dokter Gigi Spesialis Konservasi Makassar, Indonesia. Email: naniamda@gmail.com

Juni Jekti N
Bagian Konservasi Fakultas Kedokteran Gigi Universitas Hasanuddin Makassar, Indonesia

Aries Chandra Trilaksana
Bagian Konservasi Fakultas Kedokteran Gigi Universitas Hasanuddin Makassar, Indonesia

Christine Anastasia Rovani
Bagian Konservasi Fakultas Kedokteran Gigi Universitas Hasanuddin Makassar, Indonesia

Nurhayaty Natsir
Bagian Konservasi Fakultas Kedokteran Gigi Universitas Hasanuddin Makassar, Indonesia

Indrya Kirana Mattulada
Bagian Konservasi Fakultas Kedokteran Gigi Universitas Hasanuddin Makassar, Indonesia
Online First: February 28, 2015 | Cite this Article
Amda, N., N, J., Trilaksana, A., Rovani, C., Natsir, N., Mattulada, I. 2015. Penilaiankebersihansepertigaapikaldindingsaluranakardarismearlayer dengan menggunakan rotary instrument dengan disain convex triangular dan rectangular cross section (Hygiene assessment on apical third of root canal wall of smear layer using rotary instrument design convex triangular and rectangular cross section). Journal of Dentomaxillofacial Science 14(1): 65-70. DOI:10.15562/jdmfs.v14i1.429


This study aim to compare the smear layer clearance on the apical third of the root canal walls instrumented with
convex triangular cross- section designed hand instruments, rectangular cross-section and convex triangular crosssection
designed rotary instruments. Mandibular premolars that met the inclusion criteria were divided into 3 groups
of 10 samples, and prepared using convex triangular cross section design hand instruments, convex triangular crosssection
and
rectangular

cross-section design rotary instruments. After preparation and drainage, the sample was cut
into halves using a stainless steel chisel, a section was randomly selected and examined using SEM with 1000 X. This
study showed that the smear layer clearance of hand instrument group was the lowest compared to other two groups,
the rotary instruments with rectangular cross-section design showed the highest percentage smear layer clearance
among the three groups.
It was concluded that root canal preparation using a rotary instrument design convex
triangular cross section produces hygiene apical third of the canal walls of the smear layer significantly compared to
manual instruments designed convex triangular cross section and root canal preparation with a rotary instrument design
of rectangular cross section produces hygiene apical third of the wall root canal of the smear layer significantly
compared convex design of triangular cross section.

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