{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,28]],"date-time":"2026-02-28T04:55:23Z","timestamp":1772254523067,"version":"3.50.1"},"reference-count":55,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2021,5,30]],"date-time":"2021-05-30T00:00:00Z","timestamp":1622332800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>The orthodontic miniscrew is driven into bone in a clockwise direction. Counter-clockwise rotational force applied to the implanted miniscrew can degrade the stability. The purpose of this three-dimensional finite element study was to figure out the effect of shifting the miniscrew head hole position from the long axis. Two miniscrew models were developed, one with the head hole at the long axis and the other with an eccentric hole position. One degree of counter-clockwise rotation was applied to both groups, and the maximum Von-Mises stress and moment was measured under various wire insertion angles from \u221260\u00b0 to +60\u00b0. All Von-Mises stress and moments increased with an increase in rotational angle or wire insertion angle. The increasing slope of moment in the eccentric hole group was significantly higher than that in the centric hole group. Although the maximum Von-Mises stress was higher in the eccentric hole group, the distribution of stress was not very different from the centric hole group. As the positive wire insertion angles generated a higher moment under a counter-clockwise rotational force, it is recommended to place the head hole considering the implanting direction of the miniscrew. Clinically, multidirectional and higher forces can be applied to the miniscrew with an eccentric head hole position.<\/jats:p>","DOI":"10.3390\/s21113798","type":"journal-article","created":{"date-parts":[[2021,5,31]],"date-time":"2021-05-31T03:45:29Z","timestamp":1622432729000},"page":"3798","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Effect of Different Head Hole Position on the Rotational Resistance and Stability of Orthodontic Miniscrews: A Three-Dimensional Finite Element Study"],"prefix":"10.3390","volume":"21","author":[{"given":"Jin-Young","family":"Choi","sequence":"first","affiliation":[{"name":"Department of Orthodontics, Kyung Hee University Dental Hospital, Seoul 02447, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5699-054X","authenticated-orcid":false,"given":"Min-Jung","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Convergence Medicine, Asan Medical Center, Asan Medical Institute of Convergence Science and 8 Technology, Seoul 02447, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5030-1894","authenticated-orcid":false,"given":"Seong-Hun","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Orthodontics, Graduate School of Dentistry, Kyung Hee University, Seoul 02447, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kyu-Rhim","family":"Chung","sequence":"additional","affiliation":[{"name":"Department of Orthodontics, Graduate School of Dentistry, Kyung Hee University, Seoul 02447, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gerald","family":"Nelson","sequence":"additional","affiliation":[{"name":"Division of Orthodontics, Department of Orofacial Science, University of California, San Francisco, CA 94143, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2021,5,30]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"111","DOI":"10.1016\/j.kjms.2013.11.002","article-title":"Miniscrew implant applications in contemporary orthodontics","volume":"30","author":"Chang","year":"2014","journal-title":"Kaohsiung J. Med. Sci."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"255","DOI":"10.2319\/050619-315.1","article-title":"Finite element study of controlling factors of anterior intrusion and torque during Temporary Skeletal Anchorage Device (TSAD) dependent en masse retraction without posterior appliances: Biocreative hybrid retractor (CH-retractor)","volume":"90","author":"Mo","year":"2020","journal-title":"Angle Orthod."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"e233","DOI":"10.1016\/j.ajodo.2011.06.019","article-title":"Maxillary posterior intrusion mechanics with mini-implant anchorage evaluated with the finite element method","volume":"140","year":"2011","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"52","DOI":"10.4041\/kjod.2020.50.1.52","article-title":"Distalization with a modified C-palatal plate for severe upper crowding and a missing lower incisor","volume":"50","author":"Park","year":"2020","journal-title":"Korean J. Orthod."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"440","DOI":"10.1016\/j.ajodo.2016.08.029","article-title":"Effectiveness of orthodontic miniscrew implants in anchorage reinforcement during en-masse retraction: A systematic review and meta-analysis","volume":"151","author":"Sarul","year":"2017","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1186\/s40510-017-0200-2","article-title":"Mandibular molar uprighting using orthodontic miniscrew implants: A systematic review","volume":"19","author":"Emmanouilidis","year":"2018","journal-title":"Prog. Orthod."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"81","DOI":"10.4041\/kjod.2018.48.2.81","article-title":"Evaluation of the effects of miniscrew incorporation in palatal expanders for young adults using finite element analysis","volume":"48","author":"Seong","year":"2018","journal-title":"Korean J. Orthod."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"887","DOI":"10.1016\/j.ajodo.2016.10.025","article-title":"Effects of monocortical and bicortical mini-implant anchorage on bone-borne palatal expansion using finite element analysis","volume":"151","author":"Lee","year":"2017","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"207","DOI":"10.1016\/j.ajodo.2012.03.027","article-title":"Palatal bone thickness compared with cone-beam computed tomography in adolescents and adults for mini-implant placement","volume":"142","author":"Ryu","year":"2012","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"13","DOI":"10.2319\/050619-316.1","article-title":"Molar inclination and surrounding alveolar bone change relative to the design of bone-borne maxillary expanders: A CBCT study","volume":"90","author":"Moon","year":"2020","journal-title":"Angle Orthod."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"271","DOI":"10.1007\/s10006-013-0430-5","article-title":"Orthodontic treatment of anterior open bite: A review article-is surgery always necessary?","volume":"18","author":"Reichert","year":"2014","journal-title":"Oral Maxillofac. Surg."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"526","DOI":"10.1016\/j.ajodo.2009.05.040","article-title":"Comparison of the intrusive effects of miniscrews and utility arches","volume":"139","year":"2011","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"615","DOI":"10.1016\/j.ajodo.2006.12.022","article-title":"Comparison of treatment outcomes between skeletal anchorage and extraoral anchorage in adults with maxillary dentoalveolar protrusion","volume":"134","author":"Yao","year":"2008","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"345","DOI":"10.1016\/j.ajodo.2011.07.021","article-title":"Stress and displacement between maxillary protraction with miniplates placed at the infrazygomatic crest and the lateral nasal wall: A 3-dimensional finite element analysis","volume":"141","author":"Lee","year":"2012","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_15","doi-asserted-by":"crossref","unstructured":"Popa, A., Dehelean, C., Calniceanu, H., Watz, C., Brad, S., Sinescu, C., Marcu, O.A., Popa, C.S., Avram, S., and Nicolov, M. (2020). A Custom-Made Orthodontic Mini-Implant-Effect of Insertion Angle and Cortical Bone Thickness on Stress Distribution with a Complex In Vitro and In Vivo Biosafety Profile. Materials, 13.","DOI":"10.3390\/ma13214789"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"71","DOI":"10.1016\/j.ajodo.2011.06.031","article-title":"Analysis of stress in bone and microimplants during en-masse retraction of maxillary and mandibular anterior teeth with different insertion angulations: A 3-dimensional finite element analysis study","volume":"141","author":"Jasmine","year":"2012","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"388","DOI":"10.1093\/ejo\/cjq090","article-title":"Factors influencing the stability of miniscrews. A retrospective study on 300 miniscrews","volume":"33","author":"Manni","year":"2011","journal-title":"Eur. J. Orthod."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"228","DOI":"10.1016\/j.ajodo.2012.03.029","article-title":"Miniscrew design and bone characteristics: An experimental study of primary stability","volume":"142","author":"Migliorati","year":"2012","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"186","DOI":"10.1016\/j.ajodo.2012.03.023","article-title":"Effects of thread shape on the pullout strength of miniscrews","volume":"142","author":"Gracco","year":"2012","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"479","DOI":"10.1016\/j.joms.2012.10.002","article-title":"Mechanical evaluation of orthodontic mini-implants of different lengths","volume":"71","author":"Pithon","year":"2013","journal-title":"J. Oral Maxillofac. Surg."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"31","DOI":"10.1016\/j.ajodo.2015.06.020","article-title":"Evaluation of the surface characteristics of anodic oxidized miniscrews and their impact on biomechanical stability: An experimental study in beagle dogs","volume":"149","author":"Choi","year":"2016","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"191","DOI":"10.1007\/s00056-018-0131-7","article-title":"Influence of geometric design characteristics on primary stability of orthodontic miniscrews","volume":"79","author":"Radwan","year":"2018","journal-title":"J. Orofac. Orthop."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"132","DOI":"10.1016\/j.jmbbm.2018.07.032","article-title":"Failure load and stress analysis of orthodontic miniscrews with different transmucosal collar diameter","volume":"87","author":"Sfondrini","year":"2018","journal-title":"J. Mech. Behav. Biomed. Mater."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"21","DOI":"10.1016\/j.clinbiomech.2019.06.016","article-title":"Evaluations of miniscrew type-dependent mechanical stability","volume":"69","author":"Han","year":"2019","journal-title":"Clin. Biomech."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"108","DOI":"10.1016\/j.ajodo.2008.01.027","article-title":"Miniscrews in orthodontic treatment: Review and analysis of published clinical trials","volume":"137","author":"Crismani","year":"2010","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"27","DOI":"10.1016\/j.coms.2019.08.003","article-title":"Temporary Skeletal Anchorage Techniques","volume":"32","author":"Jones","year":"2020","journal-title":"Oral Maxillofac. Surg. Clin. North Am."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"10","DOI":"10.1016\/j.ajodo.2008.09.018","article-title":"Characterization of retrieved orthodontic miniscrew implants","volume":"135","author":"Eliades","year":"2009","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"327","DOI":"10.1016\/j.ajodo.2011.07.022","article-title":"Three-dimensional finite element analysis of strength, stability, and stress distribution in orthodontic anchorage: A conical, self-drilling miniscrew implant system","volume":"141","author":"Singh","year":"2012","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"251","DOI":"10.1016\/j.ajodo.2013.03.021","article-title":"Evaluation of optimal length and insertion torque for miniscrews","volume":"144","author":"Suzuki","year":"2013","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"279","DOI":"10.1016\/j.ajodo.2011.09.008","article-title":"Effects of thread depth, taper shape, and taper length on the mechanical properties of mini-implants","volume":"141","author":"Chang","year":"2012","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"30","DOI":"10.1016\/j.ajodo.2006.01.044","article-title":"Density of the alveolar and basal bones of the maxilla and the mandible","volume":"133","author":"Park","year":"2008","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"44","DOI":"10.1016\/j.ajodo.2007.01.023","article-title":"Biomechanical and histological comparison of self-drilling and self-tapping orthodontic microimplants in dogs","volume":"133","author":"Chen","year":"2008","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"557","DOI":"10.1093\/ejo\/cjt092","article-title":"A comparison of tapered and cylindrical miniscrew stability","volume":"36","author":"Yoo","year":"2014","journal-title":"Eur. J. Orthod."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"431","DOI":"10.1016\/j.ajodo.2007.08.025","article-title":"Clinical application of accelerated osteogenic orthodontics and partially osseointegrated mini-implants for minor tooth movement","volume":"136","author":"Kim","year":"2009","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"899","DOI":"10.2319\/090608-466.1","article-title":"Rotational resistance of surface-treated mini-implants","volume":"79","author":"Kim","year":"2009","journal-title":"Angle Orthod."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"53","DOI":"10.1007\/s00056-010-9933-y","article-title":"Biomechanical properties of orthodontic miniscrews. An in-vitro study","volume":"71","author":"Florvaag","year":"2010","journal-title":"J. Orofac. Orthop."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"669","DOI":"10.1016\/j.ajodo.2010.11.017","article-title":"Placement and removal torque values of orthodontic miniscrew implants","volume":"139","author":"Suzuki","year":"2011","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"e273","DOI":"10.1016\/j.ajodo.2011.06.025","article-title":"Changes in stress distribution of orthodontic miniscrews and surrounding bone evaluated by 3-dimensional finite element analysis","volume":"140","author":"Suzuki","year":"2011","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"596","DOI":"10.1016\/j.ajodo.2012.06.013","article-title":"Insertion torque and success of orthodontic mini-implants: A systematic review","volume":"142","author":"Meursinge","year":"2012","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"501","DOI":"10.1016\/j.ajodo.2012.05.014","article-title":"Finite element analysis of the effect of force directions on tooth movement in extraction space closure with miniscrew sliding mechanics","volume":"142","author":"Kojima","year":"2012","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"72","DOI":"10.1016\/j.ajodo.2009.09.026","article-title":"Factors controlling anterior torque during C-implant-dependent en-masse retraction without posterior appliances","volume":"140","author":"Mo","year":"2011","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"7946019","DOI":"10.1155\/2018\/7946019","article-title":"Class III Treatment with Skeletal and Dental Anchorage: A Review of Comparative Effects","volume":"2018","author":"Clemente","year":"2018","journal-title":"BioMed Res. Int."},{"key":"ref_43","first-page":"960410","article-title":"Nanoscale bonding between human bone and titanium surfaces: Osseohybridization","volume":"2015","author":"Kim","year":"2015","journal-title":"BioMed Res. Int."},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"468","DOI":"10.1016\/j.ajodo.2011.11.012","article-title":"Finite element analysis of miniscrew implants used for orthodontic anchorage","volume":"141","author":"Liu","year":"2012","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"697","DOI":"10.1016\/j.ijom.2010.08.008","article-title":"Impact of bone quality, implant type, and implantation site preparation on insertion torques of mini-implants used for orthodontic anchorage","volume":"40","author":"Wilmes","year":"2011","journal-title":"Int. J. Oral Maxillofac. Surg."},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"32","DOI":"10.1016\/j.ajodo.2012.01.016","article-title":"Effect of force on alveolar bone surrounding miniscrew implants: A 3-dimensional microcomputed tomography study","volume":"142","author":"Massey","year":"2012","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_47","first-page":"32","article-title":"Cortical bone thickness and bone density effects on miniscrew success rates: A systematic review and meta-analysis","volume":"24","author":"Lee","year":"2020","journal-title":"Orthod. Craniofacial Res."},{"key":"ref_48","doi-asserted-by":"crossref","first-page":"758","DOI":"10.1016\/j.ortho.2019.08.013","article-title":"Distribution and amount of stresses caused by insertion or removal of orthodontic miniscrews into the maxillary bone: A finite element analysis","volume":"17","author":"Ghorbanyjavadpour","year":"2019","journal-title":"Int. Orthod."},{"key":"ref_49","doi-asserted-by":"crossref","first-page":"217","DOI":"10.1016\/j.ajodo.2015.07.037","article-title":"Bone density effects on the success rate of orthodontic microimplants evaluated with cone-beam computed tomography","volume":"149","author":"Lee","year":"2016","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"268","DOI":"10.1093\/ejo\/cju037","article-title":"Strain of bone-implant interface and insertion torque regarding different miniscrew thread designs using an artificial bone model","volume":"37","author":"Cha","year":"2015","journal-title":"Eur. J. Orthod."},{"key":"ref_51","first-page":"388","article-title":"The biocreative strategy. Part 3: Extraction treatment","volume":"52","author":"Kim","year":"2018","journal-title":"J. Clin. Orthod."},{"key":"ref_52","doi-asserted-by":"crossref","first-page":"39","DOI":"10.1111\/ocr.12444","article-title":"Critical issues concerning biocreative strategy in contemporary temporary skeletal anchorage devices orthodontics: A narrative review","volume":"24","author":"Park","year":"2021","journal-title":"Orthod. Craniofacial Res."},{"key":"ref_53","first-page":"462","article-title":"The biocreative strategy. Part 4: Molar distalization in nonextraction treatment","volume":"52","author":"Chung","year":"2018","journal-title":"J. Clin. Orthod."},{"key":"ref_54","doi-asserted-by":"crossref","unstructured":"Choi, J.Y., Cho, J., Oh, S.H., Kim, S.H., Chung, K.R., and Nelson, G. (2021). Effect of different surface designs on the rotational resistance and stability of orthodontic miniscrew: A three-dimensional finite element study. Sensors, 21.","DOI":"10.3390\/s21061964"},{"key":"ref_55","doi-asserted-by":"crossref","first-page":"334","DOI":"10.1016\/j.msec.2016.12.022","article-title":"Effect of fibre posts, bone losses and fibre content on the biomechanical behaviour of endodontically treated teeth: 3D-finite element analysis","volume":"74","author":"Chieruzzi","year":"2017","journal-title":"Mater. Sci. Eng. C Mater. Biol. Appl."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/21\/11\/3798\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T06:09:09Z","timestamp":1760162949000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/21\/11\/3798"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,5,30]]},"references-count":55,"journal-issue":{"issue":"11","published-online":{"date-parts":[[2021,6]]}},"alternative-id":["s21113798"],"URL":"https:\/\/doi.org\/10.3390\/s21113798","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,5,30]]}}}