Survival of palatal miniscrews used for orthodontic appliance anchorage: A retrospective cohort study

Karagkiolidou, Angeliki; Ludwig, Björn; Pazera, Pawel; Gkantidis, Nikolaos; Pandis, Nikolaos; Katsaros, Christos

doi:10.1016/j.ajodo.2013.01.018

Cited by 81 publications

(49 citation statements)

References 15 publications

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“…This side also exhibited greater failure rates in other studies, with (22) or without (1,4,15,16) statistically significant evidence to account for differences in the success rate. This result may be related to factors such as preferred side of mastication, access difficulties when placing the OMS or viewing the right or left side (7,10,22), different levels of oral hygiene among righties and lefties (23,24), and random statistical errors (5). Studies differ when trying to show that right-handed (24) or left-handed (25) patients keep better hygiene, or attempting to prove that manual dexterity is not linked to plaque control (23), but motivation is.…”

Section: Discussionmentioning

confidence: 67%

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: Discussionmentioning

confidence: 67%

Analysis of Factors Associated with Orthodontic Microscrew Failure

Dobranszki

Faber

Scatolino³

et al. 2014

Braz. Dent. J.

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“…24 The anterior palatal region is preferred because it is far from the roots and the anatomic structures, provides adequate bone support, and is associated with high success rates. 11 Baumgaertel 12 stated that the first premolars have the greatest cortical bone thickness in the palatal region. Distalization was performed using direct anchorage with miniscrews for adequate anchorage support; thus, anchorage loss was prevented, and the spontaneous movements could be observed for all teeth.…”

Section: Discussionmentioning

confidence: 99%

“…The anterior palate is considered to be a safe region for miniscrew insertion because it is far from the tooth roots and important anatomic structures. 11,12 Another advantage of palatal anchored distalization mechanics is that there is no need to use full fixed appliances during the distalization period. Many authors have examined the effects of intraoral distalization performed with support from the miniscrews placed in this region.…”

mentioning

confidence: 99%

Three-dimensional analysis of tooth movements after palatal miniscrew-supported molar distalization

Duran

Görgülü

Di̇ndaroğlu

2016

American Journal of Orthodontics and Dentofacial Orthopedics

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“…6 The midpalatal area is suitable for miniscrew implantation with high stability and low failure rates 7 because of the following reasons: (1) the absence of important anatomic structures including major nerves or blood vessels, (2) no risk of contacting dental roots, and (3) adequate cortical bone thickness for the primary stability of the miniscrews. 8,9 The placement of miniscrews and the fabrication of connecting wire is described in detail in a previous report.…”

Section: Two Midpalatal Miniscrews Connecting a Wire Systemmentioning

confidence: 99%

Asymmetric transverse control of maxillary dentition with two midpalatal orthodontic miniscrews

Kwon

Mah

Kang

2014

The Angle Orthodontist

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There have been several orthodontic modalities for maxillary transverse control with most addressing symmetric control. The asymmetric transverse control of maxillary dentition is challenging to orthodontists due to the lack of certain modalities and possible dental side effects. Skeletal anchorages provide biomechanics without orthodontic side effects, but reports of their utilization for transverse control of maxillary dentition are scarce. The purpose of this article is to introduce a novel method utilizing two midpalatal orthodontic miniscrews and a connecting wire system for the asymmetric transverse control of maxillary dentition. Records of two patients consecutively treated with this system are reported, and the related biomechanical considerations are presented. (Angle Orthod. 2015;85:525-534.)

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Survival of palatal miniscrews used for orthodontic appliance anchorage: A retrospective cohort study

Cited by 81 publications

References 15 publications

Analysis of Factors Associated with Orthodontic Microscrew Failure

Analysis of Factors Associated with Orthodontic Microscrew Failure

Three-dimensional analysis of tooth movements after palatal miniscrew-supported molar distalization

Asymmetric transverse control of maxillary dentition with two midpalatal orthodontic miniscrews

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