Online ISSN: 2515-8260

Keywords : typodont

Design Simulator Dental Unit For Practice Of Dental Medicine Students

Masyhudi .; Ika Fikriah; Very Asfirizal; Cicih Bhakti Purnamasari; Muhammad Ikbal

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 6, Pages 694-700

Objective: The dental simulator is very important for dental education at the stage of preclinical education. Training with dental simulators is expected to provide easy adaptation for students to work on patients in professional education in hospitals.
Methods: Make of the body and phantom head simulator, maxilla and mandible typodonts, lamp arms, instrument table arms, and box. Use other components hight speed, low speed, tree way syringe, valve handle, control valve, pressure valve, integral valve, connectors, air pressure matter, and power window.
Results: Vertical direction movement on the instrument table arms and arms of the operating lamp made from Spring Shock-Breaker. LED lamps as illumination are made of iron plate frame; instrument box and body made from a mixture of resin and fiber; phantom head simulator made from a mixture of resin and ceramic adhesive consists of typodont with teeth fixed with glass glue, resin teeth, and room-temperature vulcanizing (RTV) silicone gingiva can be removed, articulators in place of typodont, part maxilla of typodont is fixed on horizontal plate. Movement of head simulator forward - down and slope of the body simulator is controlled by power window.
Conclusions: The dental simulator works well as a learning tool for dental students and designed to follow the principles of dental unit technology.

Is bracket position determination from digital techniques accurate 100%?: A comparative ex-vitro study

Zhwan Jamal Rashid; Omar Fawzi Chawshli

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 1, Pages 4384-4394

: Objective: This in vitro study aimed to assess the accuracy of orthodontic treatment outcome by comparing bracket positioning between digital and gold standard techniques. Methods: The sample consisted of ten Angle’s class I typodont models. Typodont models were divided into two groups according to the method of bracket positioning. Every five typodont models were assigned to one group. After orthodontic treatment simulation on the typodont models, Objective Grading System (OGS) for dental casts and radiographs was used in the assessment of all models to compare the final results. A calibration kit of the American Board of Orthodontics (ABO) was used for this purpose. The research was conducted in artificial teeth in pre-formed dental wax. The research was conducted in the college of Dentistry/ Sulaimani University in collaboration with the private SuliOrthodontics clinic. The Bland-Altman analysis was used to assess the intra-operator’s reliability of the vertical bracket positions. Horizontal and axial bracket position errors were assessed by using a color bar chart generated by the 3-Matic software after part comparison analysis of the stereolithographic (STL) file of bracketed models. The Wilcoxon signed-rank test was used to compare the median of the OGD in two time periods. Non-parametric Mann Whitney test was used to compare the mean rank between study groups. Results:A significant difference in the bracket position’s accuracy was seen between the orthodontic treatment outcomes measured by the ABO-OGS. The mean scores of the OGS criteria for gold standard and digital techniques were 15.80 ± 0.84 and 17.00 ± 0.71 (p = 0.049), respectively. Conclusion: Gold standard technique proved to have a more accurate result compared to digital technology.