Orthodontic management of bilateral maxillary canine-first premolar transposition and bilateral agenesis of maxillary lateral incisors: a case report

Palma, Elena Di; Giuseppe, Biagio Di; Tepedino, Michele; Chimenti, Claudio

doi:10.1590/2176-9451.20.2.100-109.oar

Cited by 13 publications

(12 citation statements)

References 21 publications

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“…While other factors are under the clinician’s control, such as the ligation method, the dimensional accuracy of the appliance is an independent factor that can complicate the clinician’s work, considering how torque control is important to achieve a good occlusion [ 10 , 11 ], and that several orthodontic mechanics (i.e. intermaxillary elastics, powerchains, and many others) produce a loss of torque, which should be counteracted by the bracket’s torque or the archwire’s incorporated torque.…”

Section: Introductionmentioning

confidence: 99%

Dimensional variability of orthodontic slots and archwires: an analysis of torque expression and clinical implications

et al. 2020

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Background The loss of third-order information in pre-adjusted brackets due to torsional play is a problem in clinical orthodontics. The aim of this study was to evaluate the impact of slot height, archwire height, width and edge bevel’s radius on the torsional play for three brackets/archwire systems. Methods Ninety brackets with a 0.022 × 0.028 in. slot with McLaughlin-Bennett-Trevisi prescription from three different manufacturers were selected, and the slot’s height and depth were measured using a profile projector. Sixty stainless-steel rectangular archwires from three different manufacturers were sectioned and observed with a SEM to measure their height, width, and radius of edge bevel. The recorded data were used to calculate the theoretical torsional play between different slot−archwire combinations. One-way ANOVA was used to compare the measurements within different bracket types and among different manufacturers. Results Slot height was usually oversized. Archwire’s height was usually undersized, but oversized wires were also observed. The radius edge bevel was the most variable parameter. A certain degree of torsional play is always present that differs from one bracket type to another of the same producer and that can even be doubled from one manufacturer to another. Conclusions Due to production tolerance, differences between the nominal values and the real dimensions of any components of a slot/archwire system are common. This results in a torsional play that limits torque expression. The archwire’s edge bevel plays an important role in torque expression, and clearer information should be provided by the manufacturers regarding this aspect.

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Section: Introductionmentioning

confidence: 99%

Dimensional variability of orthodontic slots and archwires: an analysis of torque expression and clinical implications

et al. 2020

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“…Maintaining the teeth in the arch is important, to ensure that the patient will have adequate functionality and good aesthetics. 11 , 12 …”

Section: Discussionmentioning

confidence: 99%

Taking advantage of an unerupted third molar: a case report

Pereira

Santiago

Sette-Dias

et al. 2017

Dental Press J. Orthod.

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Introduction: Treatments with dental surgery seek to displace tooth to the correct position within the dental arch. Objective:To report a clinical case that took advantage of an unerupted third molar. Case history: A male patient, 18 years of age, was referred by his dentist to evaluate the third molars. The clinical exam revealed no visible lower third molars. The computed tomography (CT) exam showed the presence of a supernumerary tooth in the region of the mandibular ramus, on the left side, and impaction of the third molar, which was causing root resorption on the second molar, thus making it impossible to remain in the buccal cavity. The preferred option, therefore, was to remove both second molar and the supernumerary tooth, in addition to attaching a device to the third molar during surgery for further traction. Results: After 12 months, the third molar reached the proper position. Conclusion: When a mandibular second permanent molar shows an atypical root resorption, an impacted third molar can effectively substitute the tooth by using an appropriate orthodontic-surgical approach.

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“…6,17,19 In fact, the risk of root resorption and periodontal recession is quite high, 6,17 since in most of the cases there isn't enough space in the alveolar process to contain two teeth moving in opposite directions, and this must be balanced with the possible benefits of such treatment. Keeping the transposition is an option widely approved by many authors 6,8,17,20,21 and was chosen for this case because of the fewer contraindications and side effects associated with this choice, the minor treatment time, and the simpler and more predictable mechanics.…”

Section: Second Phase Of Treatmentmentioning

confidence: 99%

Maxillary canine–first premolar bilateral transposition in a Class III patient: A case report

Potrubacz

Tepedino

Chimenti

2016

The Angle Orthodontist

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Tooth transposition is a rare dental anomaly that often represents a challenge for the clinician. The case of a girl with skeletal Class III malocclusion and concomitant maxillary canine-first premolar bilateral transposition, followed from 7 to 17 years of age, is presented. After a first phase of treatment aimed at resolving the Class III malocclusion, the transposition was maintained and the case finalized with a multibracket appliance. (Angle Orthod. 2016;86:509-519.)

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Orthodontic management of bilateral maxillary canine-first premolar transposition and bilateral agenesis of maxillary lateral incisors: a case report

Cited by 13 publications

References 21 publications

Dimensional variability of orthodontic slots and archwires: an analysis of torque expression and clinical implications

Dimensional variability of orthodontic slots and archwires: an analysis of torque expression and clinical implications

Taking advantage of an unerupted third molar: a case report

Maxillary canine–first premolar bilateral transposition in a Class III patient: A case report

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