Sains Malaysiana 41(8)(2012):1051 –1056
Effectiveness of Self-Etching Primer Versus Conventional Etch
and Bond
Technique in Fixed Orthodontic Treatment
(Keberkesanan Teknik
Primer Pengasidan Sendiri Berbanding Teknik Pengasidan
serta Pengikatan Konvensional pada Rawatan
Ortodontik Tetap)
A.
Noor Sam
& A.A.A. Asma*
Department of
Orthodontic, Faculty of Dentistry, Universiti Kebangsaan Malaysia
Jalan Raja Muda Abdul
Aziz, 50300 Kuala Lumpur, Malaysia
Diserahkan: 20 April
2011 / Diterima: 15 Mac 2012
ABSTRACT
A good adhesive is an important factor to consider in
orthodontic bonding. Frequent bracket failure prolongs treatment duration and
causes inconvenience to patient and operator. This study aimed to compare the
effectiveness of two bonding agents, i.e. the self etching primer (SEP) and the conventional
etch and bond (CEB) by monitoring the incidence, time and sites of bracket
failure. Eighty orthodontic patients were recruited after informed consent were obtained. A randomized split mouth technique was used
where one side was bonded with CEB agent, while the other side was bonded
using SEP agent. All bonded
brackets were examined every 4 weeks for 20 months. Incidence of bracket
failure was noted and comparison between the two groups was done using paired
t-test. Time and frequent site of failure were also assessed. Out of 1314
brackets, only 33 brackets were debonded with 16 from SEP group and 17 from CEB group which
statistically insignificant (p>0.05). Almost 55%
of bracket failure occurred during the first 3 months after bonding for both
adhesives with lower premolars was most the frequent site to fail in both
adhesives (39.4%). Bracket bonded on the left side failed significantly
compared to the right side. In conclusion, both self-etching primer and
conventional acid-etch bonding agents are equally effective in retaining
brackets clinically. Bracket failure mostly occurres during
the first 3 months after bonding. The premolar brackets and the left
side are mostly debonded when compared to other sites.
Keywords: Bonding agent; bracket failure; orthodontic
treatment; self etching primer
ABSTRAK
Perlekatan yang baik adalah faktor penting
yang perlu diberikan perhatian di dalam pengikatan ortodontik. Braket yang kerap
tertanggal akan memanjangkan tempoh rawatan dan
menyebabkan ketidakselesaan kepada pesakit dan perawat. Tujuan
kajian ini adalah untuk melihat keberkesanan dua agen pengikat iaitu primer
pengasidan sendiri dan pengasidan dan pengikatan konvensional dengan
memerhatikan kejadian, masa dan tempat braket tertanggal. Lapan puluh orang pesakit ortodontik terlibat di dalam kajian ini setelah
mendapat kebenaran. Teknik split mouth secara rawak telah digunakan
dengan sebahagian mulut menggunakan agen CEB dan sebahagian lagi menggunakan agen SEP. Semua braket akan dipantau setiap 4 minggu sehingga tempoh 20 bulan.
Kejadian braket tertanggal akan direkod dan
perbandingan antara kedua-dua kumpulan akan dibuat menggunakan paired t-test. Masa dan tempat yang kerap braket tertanggal juga dinilai. Daripada 1314 braket, hanya 33 braket yang tertanggal, dengan 16 daripada SEP dan 17 dari CEB dan tiada perbezaan
statistik yang signifikan antara keduanya (p>0.05). Hampir 55% braket tertanggal pada 3 bulan pertama selepas
perlekatan dan braket premolar bawah paling kerap tertanggal bagi kedua-dua
agen perlekatan (39.4%). Braket yang dilekatkan pada
sebelah kiri tanggal secara signifikan berbanding sebelah kanan. Kesimpulannya, kedua-dua agen perlekatan SEP dan CEB adalah berkesan untuk perlekatan braket
secara klinikal. Kegagalan braket paling banyak
berlaku pada tempoh 3 bulan pertama. Braket pada gigi
premolar dan di sebelah kiri adalah tempat yang paling kerap tertanggal.
Kata kunci: Agen
perlekatan; kegagalan braket; rawatan ortodontik; primer pengasidan sendiri
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*Pengarang surat-menyurat; email: asmaabdullah@yahoo.com
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