Perbedaan Retensi Antara Heat Cured, Self Cured dan Soft Liner Sebagai Bahan Relining Basis Gigi Tiruan Lengkap Rahang Atas Resin Akrilik (Kajian Laboratoris)

Abstract

      Basis gigi tiruan merupakan bagian gigi tiruan yang menggantikan tulang alveolar yang sudah hilang. Pemakaian
gigi tiruan yang cukup lama sering menurunkan kecekatan fitting surface terhadap mukosa jaringan disebabkan terjadi perubahan bentuk jaringan dan resorbsi struktur tulang alveolar. Relining merupakan salah satu prosedur penatalaksanaan dengan cara melapisi fitting surface yang longgar dengan bahan dasar baru. Terdapat beberapa bahan relining yaitu heat cured, self cured dan soft liner. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh bahan relining heat cured, self cured dan soft liner terhadap retensi gigi tiruan lengkap resin aklirik.
     Penelitian ini menggunakan 30 spesimen basis gigi tiruan lengkap resin akrilik yang permukaan basisnya sudah
dikurangi dan dikasari diberi lapisan bahan relining heat cured, self cured dan soft liner. Subjek penelitian dibagi menjadi 3 kelompok, pertama dengan bahan relining heat cured, kedua dengan bahan relining self cured dan ketiga dengan bahan relining soft liner. Kemudian dilakukan uji kekuatan retensi gigi tiruan dengan menggunakan alat tarik vertikal modifikasi Van Kampen dan dicatat berat beban yang meyebabkan terlepasnya gigi tiruan lengkap dari
tempatnya. Data yang diperoleh dianalisis dengan Anava satu jalur dan dilanjutkan uji post hoc dengan LSD.
     Hasil penelitian menunjukkan rata-rata kekuatan retensi dengan standar deviasi (Newton) : heat cured 80,07 ±1,85, self cured 64,39 ± 1,23 dan soft liner 41,21 ± 2,32 (p < 0,05). Kesimpulan penelitian ini adalah terdapat perbedaan retensi basis gigi tiruan lengkap rahang atas resin akrilik yang diberi bahan relining heat cured, self cured dan soft liner, bahan relining heat cured lebih retentif dibandingkan bahan self cured dan soft liner.

ABSTRACT
      The base of denture is part of dentures replacing the missing alveolar bone. The usage of denture in long period decreases handiness of fitting surface toward mucosa tissue caused the change of the network’s form and reabsorption of alveolar bone structure. Relining is one of procedures in the implementation of coating the loose fitting surface with new basic substance. There are some relining materials, such as heat cured, self cured and
soft liner. The purpose of the research is to insvestigate the impact of relining substance toward the retention of full denture- acrylic resin.
     The research used 30 specimens of full denture base – acrylic resin, which the surface of denture base had been reduced and roughed as well as given layer derived from relining heat cured, self cured and soft liner materials. Hence, the subject of research had been divided into 3 groups: the first group was by relining heat cured, the second was by relining self cured, and the third was by relining soft liner. Later on, the strength test was conducted
to denture retention by using a vertical attracted–Van Kampen modified tool and the weight was recorded causing the releasing of full denture from its place. The data obtained was analyzed by one way Anova and continued with post hoc test with LSD.
       Finally, the research finding showed that there were several rates of retention and the deviation standart (Newton), comprising of the heat cured was 80.07 ± 1.85, the self – cured was 64.39 ± 1.23 and the soft liner was 41.21 ±2.32 (p < 0.05). The conclusion of present work is that there was retention difference of base full denture on upper jaw over acrylic resin given the substance of relining heat cured, self – cured and soft liner. In addition, the relining head cured material is more retentive than the material of self-cured and soft liner.