Detail Article

Orthodontic Dental Journal / Vol. 2. No. 1. 2011-02: -


Practical application of Extraction Index for treatment planning in Angle class I malocclusion


Penggunaan Indeks Ekstraksi untuk menentukan macam perawatan pada maloklusi klas I Angle

  1. Setiawati
    Mahasiswa Strata 1 Fakultas Kedokteran Gigi Universitas Airlangga, Surabaya – Indonesia
    setiawati@yahoo.com
  2. Achmad Sjafei
    Staf Pengajar Departemen Ortodonti Fakultas Kedokteran Gigi Universitas Airlangga, Surabaya – Indonesia
  3. Irwadi Djaharu’ddin
    Staf Pengajar Departemen Ortodonti Fakultas Kedokteran Gigi Universitas Airlangga, Surabaya – Indonesia

Abstract

Background : The decision to extract teeth in orthodontics has been a motive of discussion for almost a century and it is shown that it is not a simple task. Nowadays, it is agreed that in some cases this procedure is adequate and in some cases it is inevitable. That is why the objectives are pursued, when extractions are performed, they must be precise and well supported with calculated results. Purpose: The aim of this study was carried out to investigate the validity of Extraction Index based on the cephalometric analysis. Extraction Index (EI) is obtained by Overbite Depth Indicator (ODI), Antero Posterior Dysplasia Indicator (APDI), Combination Factor (CF), inter incisor angle (IIA) and the lips position of aesthetic lines. Methods: The materials studied were 52 cephalograms with class I malocclusion. The sample was from male and female subjects with an age range from 18 to 26 years. Results: ODI in patients who require the extraction of the value obtained is 74.2241 average patient has a normal bite. APDI in this study obtained the value 80.2414 with a standard deviation of 4.15, for CF and EI in patients requiring extraction each have a value of 155.0862 (0.8 smaller than CF = 155.9) and EI 146.1069 (less 10.79) is under the norm (155.9°). Conclusion: Extraction Index is effective in treatment planning without measurements dental casts.

Keyword: Extraction index, Cephalometric, Class I malocclusion,

Abstrak

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Daftar Pustaka

  1. Rahardjo P, Ortodonti dasar. Surabaya, Airlangga University Press, 2008.

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