Sains Malaysiana 42(1)(2013):
93–98
Evaluation
of Apical Seal between Single Cone and Cold Lateral Condensation Techniques
after Post Space Preparation at Different Timing
(Penilaian Pengapan Apeks antara Teknik Satu Kon dan Pemadatan
Lateral Sejuk Selepas
Penyediaan Ruang Tiang pada Masa yang Berlainan)
Safura Anita Baharin*, Dayana Hazwani Ahmad& Farah Nur Athirah Mohamad Anuar
Faculty of Dentistry, Universiti
Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz
50300 Kuala Lumpur, Malaysia
Diserahkan: 19 Disember 2011 / Diterima: 10 Julai 2012
ABSTRACT
Obturation technique may have an effect on the apical seal
following post space preparation. This study aimed to evaluate the apical seal
of single cone and cold lateral condensation obturation techniques after post
space preparation at two different timing. A total of 120 decoronated,
single-rooted human premolars were divided into two groups (n=50) based on canal preparation and
obturation techniques; group A - hand ProTaper/ single cone and group B -
modified double-flared/ cold lateral condensation. Each group was then
subdivided into two subgroups (n=25) (subgroup I- post space preparation
immediately after obturation; subgroup II- post space preparation 7 days
later). The remaining 20 teeth served as positive and negative controls. The
external root surface was coated with nail varnish, submerged in 2%
methylene-blue dye and incubated at 37°C for 72 h. Each tooth was later
sectioned apico-coronally at 1 mm interval and evaluated using dissecting
microscope. The results revealed that obturation techniques do not affect the
apical seal (p>0.05). Immediate post preparation groups achieved
significantly better seal for both obturation techniques when compared with the
delayed groups at the level 3 mm and above from the apex (p<0.05).
Immediate post space preparation provides better apical seal regardless of
obturation techniques used.
Keywords: Apical seal; cold lateral condensation; post space
preparation; single cone
ABSTRAK
Teknik pengobturatan mungkin mempunyai kesan ke
atas pengapan apeks selepas penyediaan ruang tiang. Kajian ini dijalankan bertujuan untuk menilai
pengapan apikal antara teknik pengobturatan satu kon dan teknik pemadatan
lateral sejuk selepas penyediaan ruang tiang pada dua masa yang berlainan. Sebanyak
120 gigi pramolar manusia yang telah dipotong bahagian korona dibahagikan
kepada 2 kumpulan secara rawak (n=50) mengikut teknik penyediaan kanal dan teknik pengobturatan
iaitu kumpulan A- menggunakan sistem ProTaper tangan/pengobturatan satu kon dan
kumpulan B - menggunakan teknik penyediaan cakahan berkembar terubahsuai/
teknik pemadatan lateral sejuk. Setiap kumpulan seterusnya dibahagikan kepada 2
sub-kumpulan (n=25) iaitu sub-kumpulan 1- penyediaan ruang tiang sejurus
selepas pengobturatan dan sub- kumpulan 2- penyediaan ruang tiang 7 hari
selepas pengobturatan. Gigi yang selebihnya (n=20) digunakan sebagai
kumpulan kawalan positif dan negatif. Permukaan luar akar gigi disalutkan
dengan varnis kuku 1 mm daripada foramen apikal, direndam sepenuhnya di dalam
2% larutan pewarna metilene biru dan diinkubasi pada 37°C selama 72 jam. Setiap gigi kemudiannya dipotong dari arah apikal-korona setebal 1
mm setiap satu dan dilihat di bawah mikroskop diseksi. Pemerhatian menunjukkan teknik pengobturatan tidak mempengaruhi
pengapan apeks (p>0.05). Penyediaan ruang tiang sejurus selepas pengobturatan menunjukkan
pengapan apeks yang sangat baik berbanding selepas 7 hari terutamanya pada
tahap 3 mm ke atas dari apeks (p<0.05). Kesimpulannya, penyediaan ruang tiang sebaik selepas
pengobturatan memberikan pengapan apikal yang lebih baik berbanding 7 hari
kemudian tanpa dipengaruhi oleh teknik pengobturatan.
Kata kunci: Pemadatan lateral sejuk; pengapan
apical; penyediaan ruang tiang; satu kon
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*Pengarang untuk surat-menyurat; email: safurabaharin@yahoo.com
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