Sains Malaysiana 49(2)(2020): 343-348

http://dx.doi.org/10.17576/jsm-2020-4902-12

Validity and Reliability of External Apical Root Resorption (EARR) Measurements: A 3D Cone Beam Computed Tomography (CBCT) Study

(Kesahihan dan Kebolehpercayaan Resorpsi Akar Apikal Luaran (EARR): Kajian Tiga Dimensi (3D) Komputer Kon Tomografi (CBCT))

FAZAL SHAHID¹, SHIFAT A NOWRIN¹, NORMA AB RAHMAN¹* & SAIDI JAAFAR²

¹Orthodontic Unit, School of Dental Sciences, Health Campus, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan Darul Naim, Malaysia

²Craniofacial Biology Research Group, School of Dental Sciences, Health Campus, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan Darul Naim, Malaysia

Received: 18 November 2018/Accepted: 25 October 2019

ABSTRACT

The purpose of this study was to evaluate the validity and reliability of external apical root resorption (EARR) measurements on commercial and open source software. The data sources were CBCT high volumetric data acquisition from the Malay ethnic group who are undergoing orthodontic treatment in School of Dental Sciences, Universiti Sains Malaysia. A total of 16 CBCT radiograph with 512 variables were measured using the Planmeca Romexis TM Software 2.3.1.R (Helsinki, Finland) and 3D Slicer v. 4.8.1 (open-source software, http://www.slicer.org). Two examiners (A and B) carried out all the measurements of the selected radiographs using the two softwares. Intra class correlation (ICC) coefficient test was applied to check the validity and reliability of EARR measurements. The validity of the 3D EARR measurements from both examiners A and B showed strong correlations. Moreover, ICC co-efficient values of inter examiner A and B were all in the range of strong correlation for EARR measurements in which reliability coefficient values were comparable with the measurements using Planmeca Romexis and 3D Slicer, respectively. All ICC coefficient values were positively correlated. Linear measurements of EARR using 3D CBCT in both commercial and open source software and are valid and reliable.

Keywords: External apical root resorption (EARR); reliability; validity; 3D cone beam computed tomography (CBCT)

ABSTRAK

Tujuan kajian ini adalah untuk menilai kesahihan dan kebolehpercayaan pengukuran resorpsi akar apikal luaran (EARR) antara perisian komersial dan sumber terbuka. Sumber adalah daripada data volumetrik sinaran-kon-tomografi-berkomputer (CBCT) tiga dimensi (3D) daripada kumpulan etnik Melayu yang menjalani rawatan ortodontik di Pusat Pengajian Sains Pergigian, Universiti Sains Malaysia. Sebanyak 16 radiografi CBCT dengan 512 pemboleh ubah diukur dengan menggunakan Perisian Planmeca Romexis TM 2.3.1.R (Helsinki, Finland) dan 3D Slicer v. 4.8.1 (perisian sumber terbuka, http://www.slicer.org). Dua pemeriksa (A dan B) melakukan semua ukuran radiografi terpilih menggunakan dua jenis perisian yang berbeza. Ujian koefisien korelasi kelas (ICC) digunakan untuk memeriksa kesahihan pengukuran EARR. Kesahihan pengukuran 3D EARR untuk pemeriksa A dan B menunjukkan korelasi yang kuat. Selain itu, nilai pekali ICC untuk pemeriksa antara A dan B semuanya berada dalam julat hubungan yang kuat untuk pengukuran EARR dengan nilai pekali kebolehpercayaan adalah setanding antara pengukuran menggunakanPlanmeca Romexis dan3D Slicer. Semua nilai koefisien ICC menunjukkan korelasi yang positif. Pengukuran linear EARR menggunakan 3D CBCT antara perisian komersial dan sumber terbuka adalah sah dan boleh dipercayai.

Kata kunci: Kebolehpercayaan; kesahihan; resorpsi akar apical luaran (EARR); sinaran-kon-tomografi-berkomputer (CBCT) tiga dimensi (3D)

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*Corresponding author; email: drnorma@usm.my