Update Artikelilmiah: 14986

DENIK MUTAQIN

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Abstrak (Bhs. Indonesia)

Pegas kantilever tunggal merupakan komponen aktif  peranti ortodonsi lepasan. Pegas ini berfungsi untuk menggerakkan gigi ke arah distal maupun mesial dengan panjang pegas sekitar 15-20 mm. Pegas ini dibuat dari 18-8 austenitic stainless steel wire dengan diameter 0,5 mm. Kekuatan optimal untuk menggerakkan gigi tipping adalah 40 gram. Defleksi optimal yang menghasilkan kekuatan 40 gram adalah sebesar 3 mm. Penelitian ini bertujuan untuk membandingkan nilai defleksi pegas stainless steel wire diameter 0,5 mm pada variasi panjang wire, menentukan panjang optimal wire yang menghasilkan nilai defleksi optimal, dan membandingkan selisih nilai defleksi pegas setiap penambahan panjang wire sebesar 1 mm. Penelitian ini merupakan penelitian eksperimental laboratoris dengan menggunakan 48 sampel yang terbagi menjadi 6 kelompok. Kelompok 1 panjang wire 15 mm, kelompok 2 panjang wire 16 mm, kelompok 3 panjang wire 17 mm, kelompok 4 panjang wire 18 mm, kelompok 5 panjang wire 19 mm dan kelompok 6 panjang wire 20 mm. Alat uji defleksi pegas menggunakan tension gauge. Data dianalisis menggunakan uji one way Anova kemudian dilanjutkan dengan uji LSD. Hasil penelitian menunjukkan terdapat perbedaan bermakna (p<0,05) nilai defleksi pegas 18-8  austenitic stainless steel wire diameter 0,5 mm pada variasi panjang wire sedangkan perbandingan selisih nilai defleksi pegas setiap penambahan panjang wire 1 mm memiliki perbedaan bermakna (p<0,05). Simpulan penelitian ini adalah semakin panjang wire nilai defleksi pegas semakin besar, panjang optimal wire yang menghasilkan nilai defleksi optimal adalah panjang wire 19 mm, dan terdapat perbedaan selisih nilai defleksi pegas setiap penambahan panjang wire 1 mm.

Abtrak (Bhs. Inggris)

Finger spring is an active component of removable orthodontic appliance. The spring is used to move the teeth towards distal and mesial which has the length about 15-20 mm. This spring was made of 18-8 austenitic stainless steel wire, diameter 0,5 mm. The force optimal for tipping movement teeth is 40 grams. Optimal deflection to the force of 40 grams is about 3 mm. The purpose of this study to compare the deflection stainless steel wire 0,5 mm in diameter of spring between diffrent length wire, find out the optimal length of wire for optimal deflection, and compare the difference in the value of deflection every additional length of wire 1 mm. This study is an experimental research laboratory by using 48 samples into six groups. The first group was the wire with a length of 15 mm. The second group was the wire with a length of 16 mm. The third group was the wire with a length of 17 mm. The fourth group was the wire with a length of 18 mm. The five group was the wire with a length of 19 mm and the six group was the wire with a length of 20 mm. The instrument used  to measure deflection of spring was tension gauge. Results of spring deflection measurements and results the difference in the value of defelction every additional length of wire 1 mm were analyzed using one way Anova and followed by LSD test. The results show that there was siginficant difference (p<0,05)  of spring deflection stainless steel wire 0,5 mm in diameter on the length of wire variation, while the difference in the value of defelction every additional length of wire 1 mm was significant difference (p<0,05). The conclusion of this study is the longer the length of wire, the deflection value will be greater. Length of wire  for optimal deflection is equal to 19 mm. There was difference in the difference in value deflection every additional of the length wire 1 mm.

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