Factors affecting the clinical success of screw implants used as orthodontic anchorage

Park, Hyo‐Sang; Jeong, Seong-Hwa; Kwon, Oh-Won

doi:10.1016/j.ajodo.2004.11.032

Cited by 542 publications

(556 citation statements)

References 15 publications

Supporting

Mentioning

414

Contrasting

Unclassified

Order By: Relevance

“…Miyawaki et al (2003) demonstrated that the cortical bone was thinner in high angle cases compared with low angle cases in the buccal posterior teeth area, which affected the stability of the microimplant anchor. Since the cortical bone thickness influences the stability of the microimplant (Park et al, 2006), measurement of the cortical bone thickness helps orthodontists to predict problems and to plan steps in clinical treatments. When the microimplant is used in patients with a horizontal growth pattern, more attention should be given to the direction of the implant, compared with its stability.…”

Section: Discussionmentioning

confidence: 99%

“…Recently, the microimplant anchor has become more popular in clinical treatment. Park et al (2006) suggested that the stability of a microimplant is influenced by a number of factors, including cortical bone thickness, oral hygiene, implant site, and inflammation. Miyawaki et al (2003) demonstrated that the cortical bone was thinner in high angle cases compared with low angle cases in the buccal posterior teeth area, which affected the stability of the microimplant anchor.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Association between mandibular posterior alveolar morphology and growth pattern in a Chinese population with normal occlusion

Han

Wang

et al. 2013

J. Zhejiang Univ. Sci. B

View full text Add to dashboard Cite

Abstract:Objective: To investigate the relationship between growth patterns and mandibular posterior tooth-alveolar bone complex morphology in a Chinese population with normal occlusion. Methods: Forty-five patients with normal occlusion (23 males, 22 females) were included in this study. Among these patients, 20 displayed the vertical growth pattern, and 20 had the horizontal growth pattern, while the remaining patients displayed the average growth pattern. All of the patients underwent dental cone beam computed tomography (CBCT), which included the region of the mandibular posterior teeth and the alveolar. A linear regression analysis and a correlation analysis between the facial height index (FHI) and the alveolar bone morphology were performed. Results: The inclination of the molars, the thickness of the cortical bone, and the height of the mandibular bone differed significantly between patients with the horizontal growth pattern and those with the vertical growth pattern (P<0.05). Significant positive correlations were found between: the FHI and the inclination of the molars; the FHI and the thickness of the cortical bone; and the FHI and the height of the mandibular bone. Conclusions: The mandibular posterior tooth-alveolar bone complex morphology may be affected by growth patterns.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Association between mandibular posterior alveolar morphology and growth pattern in a Chinese population with normal occlusion

Han

Wang

et al. 2013

J. Zhejiang Univ. Sci. B

View full text Add to dashboard Cite

show abstract

“…Recently in orthodontics, the focus has been on miniscrew implants as a skeletal anchorage system that does not require patient compliance. Many studies have investigated the factors related to stability because the failure rate of mini-implants, ranging from 9 to 30%, is high compared to that of osseointegrated endosseous implants [7][8][9][10]. Among the factors related to failure, it has been reported that the implantation site has an important role [9,11].…”

Section: Introductionmentioning

confidence: 99%

“…Many studies have investigated the factors related to stability because the failure rate of mini-implants, ranging from 9 to 30%, is high compared to that of osseointegrated endosseous implants [7][8][9][10]. Among the factors related to failure, it has been reported that the implantation site has an important role [9,11]. A review on endosseous implants has shown that jaw bone with reduced density correlates with a reduced primary stability and a significantly higher implant failure rate [12].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of changes in trabecular alveolar bone during growth using conventional panoramic radiographs

Pham

Kiliaridis

2011

Acta Odontologica Scandinavica

View full text Add to dashboard Cite

Objective. To assess changes of the alveolar trabecular bone during growth using panoramic radiographs and to detect possible differences in trabecular bone patterns when comparing individuals of various ages and genders. Materials and methods. Conventional panoramic radiographs of 18 young (eight females, 10 males) and 21 adult (12 females, nine males) subjects were taken at 2 years (T1) and 10 years (T2) after the end of orthodontic treatment. At T1, mean ages were 15.6 ± 0.9 years and 31.3 ± 9.7 years in the young and the adult groups, respectively. A three-scale visual analysis was used to evaluate bilaterally the alveolar bone trabeculation in the interdental spaces, from the distal side of the first mandibular premolar to the mesial side of the second lower molar. An analysis of variance (ANOVA), associated with t-tests whenever significance was found, was used to appraise the role of the age, the extent of the follow-up period and the gender on trabecular bone structure. Results. The adult group had a denser alveolar bone trabeculation, compared to the young group. This was also observed in the 8 years followup recordings among the adults, but no statistically significant differences were found in the growing individuals. No gender discrepancy was detected. Conclusions. From puberty to the middle age adulthood, denser alveolar bone trabeculation in the mandible seems to be related to the age. No differences were found between male and female subjects in the sample.

show abstract

“…O emprego de mini-implante ortodôntico de Ti-6Al-4V é uma solução viável para evitar movimentos recíprocos indesejados [1,2]. O emprego deste dispositivo tem várias vantagens, entre elas o pequeno tamanho, custos reduzidos, simplicidade na técnica cirúrgica tanto para instalação quanto remoção, capacidade de receber carga imediatamente, não necessita de tempo de latência para osteointegração (implantes tradicionais) e principalmente, pela grande aceitação por parte dos pacientes [3,4].…”

unclassified

Distribuição de tensões em mini-implantes ortodônticos

Dobranszki

Neto

Dobranszki³

et al. 2010

Matéria (Rio J.)

View full text Add to dashboard Cite

RESUMOO objetivo deste trabalho foi avaliar a distribuição de tensões na resina em contato com os filetes de roscas de mini-implantes cilíndricos e cônicos, submetidos à carga lateral e torção de inserção. Um modelo fotoelástico foi confeccionado com gelatina transparente, para simular o osso alveolar. O modelo foi observado com um polariscópio plano e fotografado antes e após a ativação dos mini-implantes com força lateral e de inserção. A aplicação de cargas laterais provocou momentos fletores nos mini-implantes, aparecimento de franjas isocromáticas ao longo dos filetes do corpo dos mini-implantes e no ápice. Quando foi aplicado o torque de inserção, verificou-se a concentração de tensões próxima ao ápice. Concluiu-se que:(1) o mini-implante cilíndrico apresentou maior concentração de tensões no ápice, e (2) o mini-implante cônico apresentou maior concentração de tensões nos filetes de rosca apicais.Palavras-chaves: distribuição de tensões, fotoelasticidade, mini-implantes, ancoragem absoluta. Stress distribution in orthodontic mini-implants ABSTRACTThe objective of this study was to evaluate the stress distribution in the resin in contact with the spirals of cylindrical and conical mini-implants, when submitted to lateral load and insertion torsion. A photoelastic model was fabricated using transparent gelatin to simulate the alveolar bone. The model was observed with a plane polariscope and photographically recorded before and after activation of the two screws with a lateral force and torsion. The lateral force application caused bending moments on both miniimplants, with the uprising of fringes or isochromatics, characteristics of stresses, along the threads of the mini-implants and in the apex. When the torsion was exerted in the mini-implants, a great concentration of stress upraised close to the apex. The conclusion was that, comparing conical with cylindrical mini-implants under lateral load, the stresses were similar on the traction sides. The differences appear (1) on the apex, where the cylindrical mini-implant showed a greater concentration of stress, and (2) along the spirals, in the compression side, where the conical mini-implant showed a greater concentration of stress. The greater part of the stress produced by both mini-implants, after torsion load in insertion, were concentrated on the apex. With the cylindrical mini-implant, the greater concentration of tension was close to the apex, while with the conical one, the stresses were distributed along a greater amount of apical threads.

show abstract

Factors affecting the clinical success of screw implants used as orthodontic anchorage

Cited by 542 publications

References 15 publications

Association between mandibular posterior alveolar morphology and growth pattern in a Chinese population with normal occlusion

Association between mandibular posterior alveolar morphology and growth pattern in a Chinese population with normal occlusion

Evaluation of changes in trabecular alveolar bone during growth using conventional panoramic radiographs

Distribuição de tensões em mini-implantes ortodônticos

Contact Info

Product

Resources

About