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Effects of insertion angle and implant thread type on the fracture properties of orthodontic mini-implants during insertion
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Cho, Il-Sik | - |
dc.contributor.author | Kim, Tae-Woo | - |
dc.contributor.author | Ahn, Sug-Joon | - |
dc.contributor.author | Yang, Il-Hyung | - |
dc.contributor.author | Baek, Seung-Hak | - |
dc.creator | 백승학 | - |
dc.date.accessioned | 2014-07-23T05:11:55Z | - |
dc.date.available | 2014-07-23T05:11:55Z | - |
dc.date.issued | 2013-07 | - |
dc.identifier.citation | Angle Orthodontist, Vol.83, No.4, pp. 698-704 | - |
dc.identifier.issn | 0003-3219 | - |
dc.identifier.uri | https://hdl.handle.net/10371/92575 | - |
dc.description.abstract | Objective: To determine the effects of insertion angle (IA) and thread type on the fracture properties of orthodontic mini-implants (OMIs) during insertion. Materials and Methods: A total of 100 OMIs (self-drilling cylindrical; 11 mm in length) were allocated into 10 groups according to thread type (dual or single) and IA (0 degrees, 8 degrees, 13 degrees, 18 degrees, and 23 degrees) (n = 10 per group). The OMIs were placed into artificial materials simulating human tissues: two-layer bone blocks (Sawbones), root (polymethylmethacrylate stick), and periodontal ligament (Imprint-II Garant light-body). Maximum insertion torque (MIT), total insertion energy (TIE), and peak time (PT) were measured and analyzed statistically. Results: There were significant differences in MIT, TIE, and PT among the different IAs and threads (all P<.001). When IA increased, MIT increased in both thread groups. However, TIE and PT did not show significant differences among 0 degrees, 8 degrees, and 13 degrees IAs in the dual-thread group or 8 degrees, 13 degrees, and 18 degrees IAs in the single-thread group. The dual-thread groups showed higher MIT at all IAs, higher TIE at 0 degrees and 23 degrees IAs, and longer PT at a 23 degrees IA than the single-thread groups. In the 0 degrees, 8 degrees, and 13 degrees IA groups, none of the OMIs fractured or became deformed. However, in the 18 degrees IA group, all the OMIs were fractured or deformed. Dual-thread OMIs showed more fracturing than deformation compared to single-thread OMIs (P < .01). In the 23 degrees IA group, all OMIs penetrated the artificial root without fracturing and deformation. Conclusions: When OMIs contact artificial root at a critical contact angle, the deformation or fracture of OMIs can occur at lower MIT values than those of penetration. | en |
dc.language.iso | en | en |
dc.publisher | E.H Angle Education and Research Foundation | en |
dc.subject | 복합학 | en |
dc.subject | Fracture properties | - |
dc.subject | Mini-implant | - |
dc.subject | Insertion angle | - |
dc.subject | Implant thread type | - |
dc.title | Effects of insertion angle and implant thread type on the fracture properties of orthodontic mini-implants during insertion | en |
dc.type | Article | - |
dc.contributor.AlternativeAuthor | 조일식 | - |
dc.contributor.AlternativeAuthor | 김태우 | - |
dc.contributor.AlternativeAuthor | 안석준 | - |
dc.contributor.AlternativeAuthor | 양일형 | - |
dc.contributor.AlternativeAuthor | 백승학 | - |
dc.identifier.doi | 10.2319/082812-689.1 | - |
dc.description.srnd | OAIID:oai:osos.snu.ac.kr:snu2013-01/102/0000004298/8 | - |
dc.description.srnd | SEQ:8 | - |
dc.description.srnd | PERF_CD:SNU2013-01 | - |
dc.description.srnd | EVAL_ITEM_CD:102 | - |
dc.description.srnd | USER_ID:0000004298 | - |
dc.description.srnd | ADJUST_YN:Y | - |
dc.description.srnd | EMP_ID:A072100 | - |
dc.description.srnd | DEPT_CD:852 | - |
dc.description.srnd | CITE_RATE:1.184 | - |
dc.description.srnd | FILENAME:조일식-백승학.pdf | - |
dc.description.srnd | DEPT_NM:치의과학과 | - |
dc.description.srnd | SCOPUS_YN:Y | - |
dc.description.srnd | CONFIRM:Y | - |
dc.identifier.srnd | 2013-01/102/0000004298/8 | - |
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