Intrusion of supra-erupted molars using miniscrews: Clinical success and root resorption

Heravi, Farzin; Bayani, Shahin; Madani, Azam Sadat; Radvar, Mehrdad; Anbiaee, Najmeh

doi:10.1016/j.ajodo.2009.06.032

Cited by 46 publications

(62 citation statements)

References 13 publications

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“…Mild apical root resorption after molar intrusion has been reported previously 15,16 ; however, root resorption in the mesial aspect after significant molar protraction has not been a finding in clinical reports. 5,17 Interestingly, although the orthodontic movements were applied similarly between the right and left sides, the left side did not present these changes.…”

Section: Treatment Resultsmentioning

confidence: 63%

Corticotomy-assisted molar protraction with the aid of temporary anchorage device

Uribe

Janakiraman

Fattal

et al. 2013

The Angle Orthodontist

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This case report describes the interdisciplinary management of a 58-year-old woman who was missing lower first molars and supraerupted maxillary first molars. The treatment plan included intrusion of the upper first molars and corticotomy-assisted mandibular second molar protraction with the aid of temporary anchorage devices. Miniscrews were effective in intrusion of the maxillary first molars and protraction of the lower second molars. Although good functional outcome was achieved in 41 months, the corticotomy-assisted procedure did not significantly reduce the treatment time.

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Section: Treatment Resultsmentioning

confidence: 63%

Corticotomy-assisted molar protraction with the aid of temporary anchorage device

Uribe

Janakiraman

Fattal

et al. 2013

The Angle Orthodontist

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show abstract

“…This is consistent with the finding that 76% of supraerupted molars show less than 2 mm. 1 In addition, some studies using 2D analyses showed that the amount of intrusion varied, ranging from 1.2 to 2.3 mm, 12 1.8 mm, 13 2.1 mm, 14 2.4 mm, 15 2.6 mm, 16 3 mm, 17 3.6 mm, 18 and up to 5 mm. 19 The different amounts of intrusion can be partly explained by the different required amounts of intrusion and/or the difference between 2D and 3D measurements.…”

Section: Discussionmentioning

confidence: 99%

“…The treatment duration in this study appeared to be longer than that in other studies. [12][13][14][15][16][17][18][19] The reason being this study included the intrusion of the mandibular molar, which took a longer time for complete intrusion compared to the maxillary molar due to the anatomical difference. It is also due to the loosening of a mini-implant, resulting in the displacement of the anchored tooth.…”

Section: Discussionmentioning

confidence: 99%

“…Two-dimensional (2D) studies using lateral cephalograms and parallel periapical radiographs evaluated positional changes of the tooth after intrusion using TADS. [12][13][14][15][16][17][18][19] These 2D assessments, however, had difficulty evaluating three-dimensional (3D) dental movements, which may have caused errors associated with the measurement of small distances on the radiographs. 20 Furthermore, detailed positional changes of each cusp in a tooth cannot be evaluated because of 2D limitations.…”

Section: Introductionmentioning

confidence: 99%

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Three-dimensional analysis of tooth movement after intrusion of a supraerupted molar using a mini-implant with partial-fixed orthodontic appliances

Lee

Jang

Chun

et al. 2012

The Angle Orthodontist

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Objective: To evaluate three-dimensional (3D) positional changes of an intruded tooth, a neighboring tooth, and a tooth connected to a mini-implant following intrusion of a single supraerupted molar, using a mini-implant with partial-fixed orthodontic appliances. Materials and Methods: The study consisted of 14 adult patients (two males and 12 females, mean age 41.9 years) with a supraerupted molar due to loss of an antagonist. Intrusion was performed using a mini-implant with a partial strap-up. The mean treatment time was 11.9 months, and the mean retention time was 23.3 months. To quantify the positional changes of the teeth, 3D models using a laser-based, dental scanning system and 3D software at pretreatment, posttreatment, and retention were oriented in a coordinate system and superimposed using nonmoved teeth as references. The changes on the x-, y-, and z-axes were measured at the tip of each cusp in the involved teeth. Results: A supraerupted molar was intruded by a mean amount of 1.35 6 0.48 mm and was well maintained during the retention period. The overall change in the neighboring tooth was insignificant, although it showed opposite movement compared to the intruded tooth during the intrusion. The tooth connected to a mini-implant exhibited a secure anchorage. Conclusion: 3D analysis showed the detailed positional changes of each tooth, and the involved molars were well maintained after intrusion. (Angle Orthod. 2013;83:274-279.)

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“…But still it was less than 1 mm Heravi etal, 14 used the miniscrews for the upper molar intrusion and also measure the length of the roots prior and after the intrusion, they found that Mean root resorption of 0.3 ± 0.2 mm for palatal root and 0.4 mm for mesiobuccal and distobuccal root was measured. And they considered these root resorption minor and clinically insignificant.…”

Section: Root Resorption Associated With Rapid Molar Intruder (Rmi)mentioning

confidence: 99%

Root Resorption Associated with Rapid Molar Intruder (RMI

Mostafa¹,

Beialy²,

Bushnak³

2017

IOSR JDMS

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Intrusion of supra-erupted molars using miniscrews: Clinical success and root resorption

Cited by 46 publications

References 13 publications

Corticotomy-assisted molar protraction with the aid of temporary anchorage device

Corticotomy-assisted molar protraction with the aid of temporary anchorage device

Three-dimensional analysis of tooth movement after intrusion of a supraerupted molar using a mini-implant with partial-fixed orthodontic appliances

Root Resorption Associated with Rapid Molar Intruder (RMI

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