Kramar, Davorin

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  • Kramar, Davorin (2)
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Author's Bibliography

New Improved Method of Setting the Jaw's Coordinate System

Živković, Srđan; Majstorović, Nemanja; Glišić, Branislav; Kramar, Davorin

(Springer-Verlag Berlin, Berlin, 2019)

TY  - CONF
AU  - Živković, Srđan
AU  - Majstorović, Nemanja
AU  - Glišić, Branislav
AU  - Kramar, Davorin
PY  - 2019
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2423
AB  - Precise and reproducible alignment of the coordinate system plays a key role in the processes of monitoring geometric parameters. In cases of long-term processes, which are executed in multiple phases, errors in setting the coordinate system can lead to wrong conclusions and mismanagement of these processes. Orthodontic therapy, ie teeth leveling, lasts for one year with controls every month. The geometric parameters (teeth positions) are monitored by the dental arch equations. During each control, the current state is compared with previous control. Conditio sine qua non is precisely and repeatably setting of the jaw's coordinate system. The ABO method (American Board of Orthodontics; digital model orientation) does not provide repeatability in successive controls. In this study, a new method of setting the coordinate system of the jaw is presented. To ensure as user-friendly procedure as possible a simple algorithm is listed. A case study on digital dental model analyses for dental arch curve mathematical definition is presented at the end of the study. This is an example of the application of engineering methods in non-engineering areas.
PB  - Springer-Verlag Berlin, Berlin
C3  - Proceedings of the 12th International Conference on Measurement & Quality Control - Cyber Physical
T1  - New Improved Method of Setting the Jaw's Coordinate System
SP  - 170
EP  - 184
DO  - 10.1007/978-3-030-18177-2_17
ER  - 
@conference{
author = "Živković, Srđan and Majstorović, Nemanja and Glišić, Branislav and Kramar, Davorin",
year = "2019",
abstract = "Precise and reproducible alignment of the coordinate system plays a key role in the processes of monitoring geometric parameters. In cases of long-term processes, which are executed in multiple phases, errors in setting the coordinate system can lead to wrong conclusions and mismanagement of these processes. Orthodontic therapy, ie teeth leveling, lasts for one year with controls every month. The geometric parameters (teeth positions) are monitored by the dental arch equations. During each control, the current state is compared with previous control. Conditio sine qua non is precisely and repeatably setting of the jaw's coordinate system. The ABO method (American Board of Orthodontics; digital model orientation) does not provide repeatability in successive controls. In this study, a new method of setting the coordinate system of the jaw is presented. To ensure as user-friendly procedure as possible a simple algorithm is listed. A case study on digital dental model analyses for dental arch curve mathematical definition is presented at the end of the study. This is an example of the application of engineering methods in non-engineering areas.",
publisher = "Springer-Verlag Berlin, Berlin",
journal = "Proceedings of the 12th International Conference on Measurement & Quality Control - Cyber Physical",
title = "New Improved Method of Setting the Jaw's Coordinate System",
pages = "170-184",
doi = "10.1007/978-3-030-18177-2_17"
}
Živković, S., Majstorović, N., Glišić, B.,& Kramar, D.. (2019). New Improved Method of Setting the Jaw's Coordinate System. in Proceedings of the 12th International Conference on Measurement & Quality Control - Cyber Physical
Springer-Verlag Berlin, Berlin., 170-184.
https://doi.org/10.1007/978-3-030-18177-2_17
Živković S, Majstorović N, Glišić B, Kramar D. New Improved Method of Setting the Jaw's Coordinate System. in Proceedings of the 12th International Conference on Measurement & Quality Control - Cyber Physical. 2019;:170-184.
doi:10.1007/978-3-030-18177-2_17 .
Živković, Srđan, Majstorović, Nemanja, Glišić, Branislav, Kramar, Davorin, "New Improved Method of Setting the Jaw's Coordinate System" in Proceedings of the 12th International Conference on Measurement & Quality Control - Cyber Physical (2019):170-184,
https://doi.org/10.1007/978-3-030-18177-2_17 . .
1
1

Examination of scanner precision by analysing orthodontic parameters

Majstorović, Nemanja; Čerče, Luka; Kramar, Davorin; Soković, Mirko; Glišić, Branislav; Majstorović, Vidosav; Živković, Srđan

(Udruženje stomatologa Balkana, 2017)

TY  - JOUR
AU  - Majstorović, Nemanja
AU  - Čerče, Luka
AU  - Kramar, Davorin
AU  - Soković, Mirko
AU  - Glišić, Branislav
AU  - Majstorović, Vidosav
AU  - Živković, Srđan
PY  - 2017
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2244
AB  - Background: 3D modelling in orthodontics is becoming an increasingly widespread technique in practice. One of the significant questions already being asked is related to determining the precision of the scanner used for generating surfaces on a 3D model of the jaw. Materials and methods: This research was conducted by generating a set of identical 3D models on Atos optical 3D scanner and Lazak Scan laboratory scanner, which precision was established by measuring a set of orthodontic parameters (54 overall) in all three orthodontic planes. In this manner we explored their precision in space, since they are used for generating spatial models - 3D jaws. Results: There were significant differences between parameters scanned with Atos and Lazak Scan. The smallest difference was 0.017 mm, and the biggest 1.109 mm. Conclusion: This research reveals that both scanners (Atos and Lazak Scan), which belong to general purpose scanners, based on precision parameters can be used in orthodontics. Early analyses indicate that the reference scanner in terms of precision is Atos.
PB  - Udruženje stomatologa Balkana
T2  - Balkan Journal of Dental Medicine
T1  - Examination of scanner precision by analysing orthodontic parameters
VL  - 21
IS  - 1
SP  - 32
EP  - 43
DO  - 10.1515/bjdm-2017-0005
ER  - 
@article{
author = "Majstorović, Nemanja and Čerče, Luka and Kramar, Davorin and Soković, Mirko and Glišić, Branislav and Majstorović, Vidosav and Živković, Srđan",
year = "2017",
abstract = "Background: 3D modelling in orthodontics is becoming an increasingly widespread technique in practice. One of the significant questions already being asked is related to determining the precision of the scanner used for generating surfaces on a 3D model of the jaw. Materials and methods: This research was conducted by generating a set of identical 3D models on Atos optical 3D scanner and Lazak Scan laboratory scanner, which precision was established by measuring a set of orthodontic parameters (54 overall) in all three orthodontic planes. In this manner we explored their precision in space, since they are used for generating spatial models - 3D jaws. Results: There were significant differences between parameters scanned with Atos and Lazak Scan. The smallest difference was 0.017 mm, and the biggest 1.109 mm. Conclusion: This research reveals that both scanners (Atos and Lazak Scan), which belong to general purpose scanners, based on precision parameters can be used in orthodontics. Early analyses indicate that the reference scanner in terms of precision is Atos.",
publisher = "Udruženje stomatologa Balkana",
journal = "Balkan Journal of Dental Medicine",
title = "Examination of scanner precision by analysing orthodontic parameters",
volume = "21",
number = "1",
pages = "32-43",
doi = "10.1515/bjdm-2017-0005"
}
Majstorović, N., Čerče, L., Kramar, D., Soković, M., Glišić, B., Majstorović, V.,& Živković, S.. (2017). Examination of scanner precision by analysing orthodontic parameters. in Balkan Journal of Dental Medicine
Udruženje stomatologa Balkana., 21(1), 32-43.
https://doi.org/10.1515/bjdm-2017-0005
Majstorović N, Čerče L, Kramar D, Soković M, Glišić B, Majstorović V, Živković S. Examination of scanner precision by analysing orthodontic parameters. in Balkan Journal of Dental Medicine. 2017;21(1):32-43.
doi:10.1515/bjdm-2017-0005 .
Majstorović, Nemanja, Čerče, Luka, Kramar, Davorin, Soković, Mirko, Glišić, Branislav, Majstorović, Vidosav, Živković, Srđan, "Examination of scanner precision by analysing orthodontic parameters" in Balkan Journal of Dental Medicine, 21, no. 1 (2017):32-43,
https://doi.org/10.1515/bjdm-2017-0005 . .
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