[ABSTRAK Pendahuluan: Model studi konvensional merupakan standar baku (goldstandard) dalam diagnosis dan prosedur perawatan. Penggunaan model studidigital 3 dimensi dapat menjadi alternatif dari keterbatasan pada model studikonvensional, antara lain kebutuhan ruang penyimpanan secara fisik, sertamemiliki sifat dapat rusak dan mengalami degradasi dalam waktu lama. Penelitianini merupakan kelanjutan dari rangkaian penelitian sebelumnya, yaitu mengujiakurasi diagnosis lengkung gigi rahang atas arah transversal pada model studidigital 3 dimensi hasil pemindaian laser menggunakan piranti keras yang sama.Material dan metode: Sampel sebanyak 26 model studi konvensional gigi rahangatas kasus gigi berjejal sedang-berat. Setiap model studi konvensional dipindaidengan piranti keras pemindai laser 3 dimensi hingga dihasilkan model studidigital 3 dimensi. Pengukuran lebar mesio-distal keempat gigi insisif rahang atas,jarak inter-premolar jarak inter-molar, indeks dan analisis Pont dilakukan padakedua model studi. Pengukuran pada model studi konvensional dilakukanmenggunakan kaliper digital (ketelitian 0,01 mm), dan pada model studi digital 3dimensi dilakukan secara digital dengan piranti lunak pengukur. Dilakukan ujirealibilitas (uji intra eksaminer) dengan plot Bland Altman dan uji t-berpasangan.Hasil pengukuran kedua model studi dibandingkan dengan uji t-tidak berpasangandan dilakukan uji kesesuaian dengan plot Bland Altman. Akurasi pengukuranlengkung gigi rahang atas arah transversal pada model studi digital 3 dimensihasil pemindaian laser diukur melalui uji diagnostik sensitivitas dan spesifitas.Hasil: Hasil uji intra eksaminer analisis plot Bland Altman menunjukkan sebagianbesar titik berada pada area garis rentang kesesuaian, dan uji t-berpasanganterdapat perbedaan bermakna antara pengukuran pertama dan kedua pada lebarmesio-distal gigi 12 dari model studi digital 3 dimensi (p=0,03). Hasil ujihipotesis dengan membandingkan hasil pengukuran kedua model studi dengan ujit-tidak berpasangan menunjukkan perbedaan tidak signifikan secara statistik,dengan nilai p untuk semua pengukuran antara 0,40-0,98. Analisis plot BlandAltman hasil pengukuran model studi digital 3 dimensi menunjukkan hasilkesesuaian yang cukup mendekati hasil pengukuran pada model studikonvensional, dengan nilai bias (mean difference) mendekati 0.00 dan p>0.05pada semua data. Hasil nilai diagnostik menggunakan analisis Pont untuk melihatrahang yang mengalami konstriksi dan non-konstriksi dari uji sensitivitas danspesifitas menunjukkan sensitivitas sebesar 100% (IK 15,8%-100%), danspesifitas 95,8% (IK 78,9%-99,9%).Kesimpulan: Piranti pemindai laser rakitan Departemen Ortodonti FKG UI danSTEI ITB akurat digunakan untuk pengukuran dan analisis lengkung gigi rahangatas arah transversal menggunakan analisis Pont pada model studi digital 3dimensi kasus gigi berjejal sedang hingga berat. ABSTRACT Introduction: Conventional study model is gold standard in diagnostic andtreatment procedure. The use of 3D digital study model can be alternative as asolution a number of problem issues from conventional study model, such asrequire rigorous archiving and massive physical storage space, breakage anddegradation issues in the long term uses. This study purpose to test the accuracyof transverse measurement the upper arch on digital 3D study models produced bythe same 3D laser scanning hardware which used in the last study.Matherial and method: 26 conventional study models of the upper archmoderate-advanced crowding cases as sample. Each conventional study modelwas scanned by 3D laser scanning hardware to produced 3d digital study model.Mesio-distal upper incisors, inter-premolar and inter-molar width, Pont?s indexand analysis was measured on both study models. Measurement were made with adigital calliper (nearest 0,01 mm) on conventional study model, and digitalmeasurement by software on 3D digital study model. Reability test(intraexaminer) by Bland Altman plot and paired t-test. Then measurement resultfrom both study models are compared using unpaired t-test and Bland Altmanplot. Acuracy of transverse measurement the upper arch on digital 3 dimensionstudy models from laser scanning performed by diagnostic test sensitivity andspecificity.Result: The intraexaminer test by Bland Altman showed most of point are in limitof agreement line, and paired t-test showed significant difference between the firstand second mesio-distal upper left lateral incisor on 3D digital study model(p=0,03). Hypothesis test by comparing the measurement on both study model byunpaired t-test showed statistically no significant difference, with p value for allmeasurement around 0,40-0,98. Bland Altmant plot showed high compatibilitybetween conventional study model and 3D digital study model, with meandifference closed to 0.00 and p>0.05 for all data. Diagnostic test on Pont?sanalysis to classify contriction and non-constriction the upper arch showedsensitivity 100% (CI 15,8%-100%) and specificity 95,8% (CI 78,9%-99,9%).Conclusion: 3D digital study model produced by 3D laser scanning hardwaremade by Orthodontic Department FKG UI-STEI ITB accurate for transversemeasurement and analysis (Pont?s) on upper arch moderate-advanced crowdingcases.;Introduction: Conventional study model is gold standard in diagnostic andtreatment procedure. The use of 3D digital study model can be alternative as asolution a number of problem issues from conventional study model, such asrequire rigorous archiving and massive physical storage space, breakage anddegradation issues in the long term uses. This study purpose to test the accuracyof transverse measurement the upper arch on digital 3D study models produced bythe same 3D laser scanning hardware which used in the last study.Matherial and method: 26 conventional study models of the upper archmoderate-advanced crowding cases as sample. Each conventional study modelwas scanned by 3D laser scanning hardware to produced 3d digital study model.Mesio-distal upper incisors, inter-premolar and inter-molar width, Pont?s indexand analysis was measured on both study models. Measurement were made with adigital calliper (nearest 0,01 mm) on conventional study model, and digitalmeasurement by software on 3D digital study model. Reability test(intraexaminer) by Bland Altman plot and paired t-test. Then measurement resultfrom both study models are compared using unpaired t-test and Bland Altmanplot. Acuracy of transverse measurement the upper arch on digital 3 dimensionstudy models from laser scanning performed by diagnostic test sensitivity andspecificity.Result: The intraexaminer test by Bland Altman showed most of point are in limitof agreement line, and paired t-test showed significant difference between the firstand second mesio-distal upper left lateral incisor on 3D digital study model(p=0,03). Hypothesis test by comparing the measurement on both study model byunpaired t-test showed statistically no significant difference, with p value for allmeasurement around 0,40-0,98. Bland Altmant plot showed high compatibilitybetween conventional study model and 3D digital study model, with meandifference closed to 0.00 and p>0.05 for all data. Diagnostic test on Pont?sanalysis to classify contriction and non-constriction the upper arch showedsensitivity 100% (CI 15,8%-100%) and specificity 95,8% (CI 78,9%-99,9%).Conclusion: 3D digital study model produced by 3D laser scanning hardwaremade by Orthodontic Department FKG UI-STEI ITB accurate for transversemeasurement and analysis (Pont?s) on upper arch moderate-advanced crowdingcases., Introduction: Conventional study model is gold standard in diagnostic andtreatment procedure. The use of 3D digital study model can be alternative as asolution a number of problem issues from conventional study model, such asrequire rigorous archiving and massive physical storage space, breakage anddegradation issues in the long term uses. This study purpose to test the accuracyof transverse measurement the upper arch on digital 3D study models produced bythe same 3D laser scanning hardware which used in the last study.Matherial and method: 26 conventional study models of the upper archmoderate-advanced crowding cases as sample. Each conventional study modelwas scanned by 3D laser scanning hardware to produced 3d digital study model.Mesio-distal upper incisors, inter-premolar and inter-molar width, Pont?s indexand analysis was measured on both study models. Measurement were made with adigital calliper (nearest 0,01 mm) on conventional study model, and digitalmeasurement by software on 3D digital study model. Reability test(intraexaminer) by Bland Altman plot and paired t-test. Then measurement resultfrom both study models are compared using unpaired t-test and Bland Altmanplot. Acuracy of transverse measurement the upper arch on digital 3 dimensionstudy models from laser scanning performed by diagnostic test sensitivity andspecificity.Result: The intraexaminer test by Bland Altman showed most of point are in limitof agreement line, and paired t-test showed significant difference between the firstand second mesio-distal upper left lateral incisor on 3D digital study model(p=0,03). Hypothesis test by comparing the measurement on both study model byunpaired t-test showed statistically no significant difference, with p value for allmeasurement around 0,40-0,98. Bland Altmant plot showed high compatibilitybetween conventional study model and 3D digital study model, with meandifference closed to 0.00 and p>0.05 for all data. Diagnostic test on Pont?sanalysis to classify contriction and non-constriction the upper arch showedsensitivity 100% (CI 15,8%-100%) and specificity 95,8% (CI 78,9%-99,9%).Conclusion: 3D digital study model produced by 3D laser scanning hardwaremade by Orthodontic Department FKG UI-STEI ITB accurate for transversemeasurement and analysis (Pont?s) on upper arch moderate-advanced crowdingcases.] |