Factors associated with initial stability of miniscrews for orthodontic treatment

Lim, Hoi-Jeong; Eun, Chun-Sun; Cho, Jin-Hyoung; Lee, Ki-Heon; Hwang, Hyeon-Shik

doi:10.1016/j.ajodo.2007.07.030

Cited by 105 publications

(66 citation statements)

References 11 publications

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“…The present study corroborates other investigations (3,4,7,12) which found no statistically significant differences in failure rates between OMSs placed in the upper vs. lower jaw (p=0.4775), or in the palatal mucosa (5,7,8,13) compared to other sites (p=0.1081). In agreement with other studies (2,4,5,8,12,13,17,20), the results of this study showed that OMS length has no bearing on rate of failure (p=0.9113) and also, no difference was found indicating failure when the mandibular plane angle (4,9,11,16) was used to classify the three facial patterns (p=0.7522), which disagrees with studies that used other references and found differences between patients with different vertical characteristics (4,9,11,16).…”

Section: Discussionsupporting

confidence: 82%

“…Moon et al (16) showed that, after excluding from this failure rate calculation the first 10 OMSs placed by clinicians, almost 80% of the failures occurred in the first four months, i.e., 32.5% in the first month. They further concluded that, in general, operator experience did not affect the success rate, although this figure increased after 40 OMSs had been inserted (12). These findings resemble the values found in this study for the first operator, which lost 26.67% of the OMSs he inserted in the first month, with 80% of failures concentrated in the first four months.…”

Section: Discussionsupporting

confidence: 77%

“…Amongst these categories, some variables deserve special attention from the orthodontists because they are related to the necessary knowledge for the orthodontic diagnosis (facial pattern) (3,4), orthodontic mechanics (upper/lower jaw (5,6), insertion side (5,7), type of desired movement (4,8,9), and for the installation of the microscrew (caliber of the microscrew), teacher/student (10), learning curve (9,11,12).…”

Section: Introductionmentioning

confidence: 99%

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Analysis of Factors Associated with Orthodontic Microscrew Failure

Dobranszki

Faber

Scatolino³

et al. 2014

Braz. Dent. J.

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The objective of this study was to examine whether factors such as insertion site, patient's facial pattern, microscrew features, type of tooth movement desired, level of experience handling orthodontic microscrews and operator expertise were associated with failure of microscrews. After the approval of an ethics committee, 166 patients of one practice signed an informed consent and received 293 microscrews randomly distributed by 3 operators with different levels of practical experience and expertise in handling microscrews. The microscrews were observed in a period of 365 days or as long as orthodontic forces had to be applied and independent variables were recorded. Analysis by the chi-square test did not produce enough evidence as to allow the assertion that there was an association between the variable "failure" and the variables "maxilla" (p=0.4775), "face" (p=0.1081), "facial pattern" (p=0.7522), "microscrew length" (p=0.9113), "desired movement" (p=0.0584), and "operator" (p=0.5785). The variable "insertion side" was significantly associated with "failure" (p=0.0022). In a 365-day survival analysis, the Log Rank test yielded a p-value of 0.00178 for the curve of variable "insertion side," and showed no significant differences for other variables. With a total success rate of 87.38%, the only variable found to be significant was "insertion side" (p=0.0022), with 3.088 more likelihood of a microscrew failing if placed on the left side than on the right side. The procedure of inserting microscrews involved a rapid learning curve for an inexperienced operator, which justifies their placement by orthodontists.

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Section: Discussionsupporting

confidence: 82%

Section: Discussionsupporting

confidence: 77%

Section: Introductionmentioning

confidence: 99%

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Analysis of Factors Associated with Orthodontic Microscrew Failure

Dobranszki

Faber

Scatolino³

et al. 2014

Braz. Dent. J.

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“…Most of the researchers did not find significant differences between men and women in terms of micro-implant stability [14][15][16][17][18] , which was entirely supported in 2 independent meta-analyses 10,11 evidently proving that sex does not affect micro-implant loosening.…”

Section: Sex and Agementioning

confidence: 89%

“…[14][15][16][17][18] Cheng et al has suggested that the thick cortical plate in the mandible conduces to a rapid raise of the temperature during hole drilling, which may result in bone overheating. 15 Another issue resulting from greater cortical thickness is a risk of ischemia of the bone due to the high pressure exerted by the micro-implant.…”

Section: Bone Anatomy and Histologymentioning

confidence: 99%

Fundamental factors related to orthodontic micro-implant stability: Review of the literature

Łyczek¹,

Antoszewska-Smith²

2017

Dent. Med. Probl.

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The development and introduction of temporary intraoral anchorage devices (TISAD) in the beginning of the 21 st century had a great impact on contemporary orthodontics. The enhancement of the scope of orthodontic treatment, improved efficiency, reduction of both the treatment time and need for the patient's compliance, all of these are the crucial advantages the TISAD have provided to our profession. However, there are also some limiting factors pertaining to this anchorage reinforcement technique which must be borne in mind prior to clinical application. Among some others, premature failure of the micro-implants is the most significant problem related to their utilization, as it entails a repetition of the insertion procedure, increasing the cost and duration of treatment and causing the patient's discomfort. Therefore, recognition of the factors related to the stability of orthodontic micro-implants is necessary for their efficient clinical application and maximum survival rates. Since over the last decade there has been noteworthy progress in the research investigating the issue of micro-implant stability, a review of the most current literature pertaining to this topic was the aim of our article, and ultimately providing clinical recommendations.

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Maximising Mini‐Implant Success: Clinical Factors

Cousley

2013

The Orthodontic Mini‐Implant Clinical Handbook

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Factors associated with initial stability of miniscrews for orthodontic treatment

Cited by 105 publications

References 11 publications

Analysis of Factors Associated with Orthodontic Microscrew Failure

Analysis of Factors Associated with Orthodontic Microscrew Failure

Fundamental factors related to orthodontic micro-implant stability: Review of the literature

Maximising Mini‐Implant Success: Clinical Factors

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