Three-dimensional finite element analysis for determining the stress distribution after loading the bone surface with two-component mini-implants of varying length
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
Objective: To evaluate the extent and aspect of stress to the cortical bone after application of a lateral force to a two-component orthodontic mini-implant (OMI, mini-implant) by using three-dimensional finite element analysis (FEA). Methods: The 3D-finite element models consisted of the maxilla, maxillary first molars, second premolars, and OMIs. The screw part of the OMI had a diameter of 1.8 mm and length of 8.5 mm and was placed between the roots of the upper second premolar and the first molar. The cortical bone thickness was set to 1 mm. The head part of the OMI was available in 3 sizes: 1 mm, 2 mm, and 3 mm. After a 2 N lateral force was applied to the center of the head part, the stress distribution and magnitude were analyzed using FEA. Results: When the head part of the OMI was friction fitted (tapped into place) into the inserted screw part, the stress was uniformly distributed over the surface where the head part was inserted. The extent of the minimum principal stress suggested that the length of the head part was proportionate with the amount of stress to the cortical bone; the stress varied between 10.84 and 15.33 MPa. Conclusions: These results suggest that the stress level at the cortical bone around the OMI does not have a detrimental influence on physiologic bone remodeling.
Abstract
Objective: To evaluate the extent and aspect of stress to the cortical bone after application of a lateral force to a two-component orthodontic mini-implant (OMI, mini-implant) by using three-dimensional finite element analysis (FEA). Methods: The 3D-finite element models consisted of the maxilla, maxillary first molars, second premolars, and OMIs. The screw part of the OMI had a diameter of 1.8 mm and length of 8.5 mm and was placed between the roots of the upper second premolar and the first molar. The cortical bone thickness was set to 1 mm. The head part of the OMI was available in 3 sizes: 1 mm, 2 mm, and 3 mm. After a 2 N lateral force was applied to the center of the head part, the stress distribution and magnitude were analyzed using FEA. Results: When the head part of the OMI was friction fitted (tapped into place) into the inserted screw part, the stress was uniformly distributed over the surface where the head part was inserted. The extent of the minimum principal stress suggested that the length of the head part was proportionate with the amount of stress to the cortical bone; the stress varied between 10.84 and 15.33 MPa. Conclusions: These results suggest that the stress level at the cortical bone around the OMI does not have a detrimental influence on physiologic bone remodeling.
참고문헌 (33)
- Byloff FK, "An implant to eliminate anchorage loss during molar distalization: a case report involving the Graz implant-supported pendulum", Int J Adult Orthodon Orthognath Surg, 15, pp.129~137 (2000)
- Creekmore TD, "The possibility of skeletal anchorage", J Clin Orthod, 17, pp.266~269 (1983)
- Deguchi T, "The use of small titanium screws for orthodontic anchorage", J Dent Res, 82, pp.377~381 (2003)
- Kanomi R, "Mini-implant for orthodontic anchorage", J Clin Orthod, 31, pp.763~767 (1997)
- Costa A, "Miniscrews as orthodontic anchorage: a preliminary report", Int J Adult Orthod Orthognath Surg, 13, pp.201~209 (1998)
- Park HS, "Group distal movement of teeth using microscrew implant anchorage", Angle Orthod, 75, pp.602~609 (2005)
- 박승현, "성견에서 표면처리된 교정용 마이크로임플랜트의 골 접촉률 및 동요도", 대한치과교정학회지, 38(6), pp.416~426 (2008), 대한치과교정학회
- Jong-Moon Chae, "Treatment of skeletal Class II adult patient with vertical and transverse problems caused by nasal airway obstruction using microimplant anchorage", 대한치과교정학회지, 39(4), pp.257~272 (2009), 대한치과교정학회
- 문철현, "성인 환자에서 구치부 압하를 통한 개방교합의 치료와 유지", 대한치과교정학회지, 39(9), pp.402~419 (2009), 대한치과교정학회
- Kim SH, "Two-component mini-implant as an efficient tool for orthognathic patients", Am J Orthod Dentofacial Orthop, 135, pp.110~117 (2009)
- 이혜련, "Removal torque values of surface-treated mini-implants after loading", AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS, 134, pp.36~43
- "Rotational Resistance of Surface-Treated Mini-implants", ANGLE ORTHODONTIST, 79, pp.899~907
- Jeong DM, "Novel application of the 2-piece orthodontic mini-implant for temporary crown restoration after orthodontic treatment", Am J Orthod Dentofacial Orthop, 140, pp.569~579 (2011)
- Ding X, "Effect of diameter and length on stress distribution of the alveolar crest around immediate loading implants", Clin Implant Dent Relat Res, 11, pp.279~287 (2009)
- Ding X, "Implant-bone interface stress distribution in immediately loaded implants of different diameters: a three-dimensional finite element analysis", J Prosthodont, 18, pp.393~402 (2009)
- Haack JE, "Elongation and preload stress in dental implant abutment screws", Int J Oral Maxillofac Implants, 10, pp.529~536 (1995)
- Kinni ME, "Force transfer by osseointegration implant devices", Int J Oral Maxillofac Implants, 2, pp.11~14 (1987)
- Rieger MR, "Finite element analysis of six endosseous implants", J Prosthet Dent, 63, pp.671~676 (1990)
- Sakaguchi RL, "Nonlinear contact analysis of preload in dental implant screws", Int J Oral Maxillofac Implants, 10, pp.295~302 (1995)
- Motoyoshi M, "The effect of cortical bone thickness on the stability of orthodontic mini-implants and on the stress distribution in surrounding bone", Int J Oral Maxillofac Surg, 38, pp.13~18 (2009)
- 박진서, "Self-drilling 방식의 마이크로임플란트 식립에 의해 발생하는 피질골 스트레인의 유한요소해석", 대한치과교정학회지, 39(4), pp.203~212 (2009), 대한치과교정학회
- Tanne K, "Three-dimensional finite element analysis for stress in the periodontal tissue by orthodontic forces", Am J Orthod Dentofacial Orthop, 92, pp.499~505 (1987)
- Poppe M, "Determination of the elasticity parameters of the human periodontal ligament and the location of the center of resistance of single-rooted teeth a study of autopsy specimens and their conversion into finite element models", J Orofac Orthop, 63, pp.358~370 (2002)
- Sertgöz A, "Finite element analysis of the effect of cantilever and implant length on stress distribution in an implant-supported fixed prosthesis", J Prosthet Dent, 76, pp.165~169 (1996)
- Skalak R, "Biomechanical considerations in osseointegrated prostheses", J Prosthet Dent, 49, pp.843~848 (1983)
- Merz BR, "Mechanics of the implant-abutment connection: an 8-degree taper compared to a butt joint connection", Int J Oral Maxillofac Implants, 15, pp.519~526 (2000)
- Mazor Z, "Mini-implants to reconstruct missing teeth in severe ridge deficiency and small interdental space: a 5-year case series", Implant Dent, 13, pp.336~341 (2004)
- Baurmash H, "Bonded arch bars in oral and maxillofacial surgery. An update", Oral Surg Oral Med Oral Pathol, 76, pp.553~556 (1993)
- Seo W, "A pilot study of the osseointegration potential of a surface-treated mini-implant: bone contact of implants retrieved from patients", World J Orthod, 10, pp.202~210 (2009)
- Chung KR, "Atypical orthodontic extraction pattern managed by differential en-masse retraction against a temporary skeletal anchorage device in the treatment of bimaxillary protrusion", Am J Orthod Dentofacial Orthop, 140, pp.423~432 (2011)
- Shatkin TE, "Mini dental implants for long-term fixed and removable prosthetics: a retrospective analysis of 2514 implants placed over a five-year period", Compend Contin Educ Dent, 28, pp.92~99 (2007)
- Frost HM, "Bone's mechanostat: a 2003 update", Anat Rec A Discov Mol Cell Evol Biol, 275, pp.1081~1101 (2003)
- Sugiura T, "Evaluation of threshold stress for bone resorption around screws based on in vivo strain measurement of miniplate", J Musculoskelet Neuronal Interact, 1, pp.165~170 (2000)