Evaluating miniscrew performance using pull out and driving torque test

Radhi Maladzi, Sugeng Supriadi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Maxillofacial screw used to overcome facial trauma problem in the Craniomaxillofacial region often affects the aesthetic, function, and structure of the patient's face. The main objective of this study was to evaluate the influence of manufacturing variable to the mini screw performance based on pull out testing and driving torque testing. The method was based on ASTM F-543 to quantify pull out strength and driving torque forces. Prior to the experimental testing, all the specimens were manufactured using CNC machine citizen A-20 with several different manufacturing parameters. The result of pull out testing the specimens of mini screw 130, mini screw 131, mini screw 132 have insignificant different with the commercial product because the Pvalue = 0,287. Otherwise mini screw 133, mini screw 134, mini screw 135, mini screw 136, and mini screw 108 have significant different with the value bellow the commercial product with the Pvalue = 0,000. For the driving torque testing, specimens 131, 132, 133, 134, 135, 136, and 108 have insignificant different to each other with the Pvalue = 0,414. If all the specimens compared to the commercial product the Pvalue become 0,002 it means the difference between the mini specimens and commercial product are significant.

Original languageEnglish
Title of host publication5th Biomedical Engineering''s Recent Progress in Biomaterials, Drugs Development, and Medical Devices
Subtitle of host publicationProceedings of the 5th International Symposium of Biomedical Engineering, ISBE 2020
EditorsKenny Lischer, Sugeng Supriadi, Siti Fauziyah Rahman, Yudan Whulanza
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735440869
Publication statusPublished - 23 Mar 2021
Event5th International Symposium of Biomedical Engineering, ISBE 2020 - Depok, Virtual, Indonesia
Duration: 28 Jul 202029 Jul 2020

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


Conference5th International Symposium of Biomedical Engineering, ISBE 2020
CityDepok, Virtual


  • Craniomaxillofacial
  • Fixation
  • Implant
  • Pull Out
  • screw
  • Torque


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