Stability of maxillary anterior crowding treatment

Quaglio, Camila Leite; Freitas, Karina Maria Salvatore de; Freitas, Marcos Roberto de; Janson, Guilherme; Henriques, José Fernando Castanha

doi:10.1590/s2176-94512012000400014

Cited by 5 publications

(3 citation statements)

References 25 publications

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“…(14)(15)(16)(17) Before the orthodontic treatment, the anterior crowding was measured by Little's irregularity index (LII) and anterior tooth-size arch-length discrepancy (ATSALD). (9,(20)(21)(22) LII, which is the sum of the linear horizontal displacement of the five contact points from the mesial aspect of the canine to the mesial aspect of the contralateral canine, was measured using a fine-tip digital caliper. The ATSALD was measured as the difference between the arch length and the sum of the mesiodistal widths of the six anterior teeth.…”

Section: Methodsmentioning

confidence: 99%

Alignment Efficiency of Open-Coil Spring Versus Conventional Technique in Relieving Anterior Crowding: A Single-Center Randomized Clinical Trial

Tavakolinejad

Ebrahimnejad

Azami

2021

J Res Dent Maxillofac Sci

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Background and Aim: This study compares a new technique for teeth alignment to the conventional method. The teeth were aligned using an open-coil spring, i.e. simultaneous space opening and alignment, on round nickel-titanium (NiTi) archwires. The purpose of this 2-arm parallel trial (1:1 allocation ratio) was to evaluate the alignment efficiency of conventional and open-coil spring techniques in anterior crowding treatment. Materials and Methods:In this clinical trial study, sixty-two non-extraction patients (70 dental arches: 24 upper arches and 46 lower arches) with ≥3mm of Little's Irregularity Index (LII) were recruited in two groups based on the minimization method. Blinding was applicable for outcome assessment only. In one group, the teeth were aligned using an open-coil spring, whereas the alignment in the other group was done conventionally, (space opening on steel wires followed by alignment with an auxiliary NiTi wire). The alignment duration was the primary outcome that was investigated for survival analysis and alignment rate ratios, and levels of crowding were calculated with Cox proportional hazard regression. The pre-and post-treatment intercanine widths were also recorded as the secondary outcome. The chi-square and t-test were used to compare other variables between the groups. The level of statistical significance was set at P<0.05. Results: There was no significant difference in the alignment duration between the conventional (185.48±74.82 days) and open-coil (179.19±64.15 days) groups (P=0.725). No harm was detected using the mentioned methods. Conclusion:The use of open-coil spring over brackets on NiTi or steel wires does not seem to affect anterior crowding treatment time.

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Section: Methodsmentioning

confidence: 99%

Alignment Efficiency of Open-Coil Spring Versus Conventional Technique in Relieving Anterior Crowding: A Single-Center Randomized Clinical Trial

Tavakolinejad

Ebrahimnejad

Azami

2021

J Res Dent Maxillofac Sci

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“…Maka, tak jarang dijumpai anterior crowding. 12,13,14 Penilaian tingkat keberhasilan perawatan ortodonti lepasan dapat dilakukan menggunakan parameter intermolar distance, inter dm2 distance, dan koreksi anterior crowding. Pengukuran anterior crowding dilakukan berdasarkan Little's Irregularity Index (LII) yang ditemukan oleh Robert M. Little pada tahun 1975.…”

Section: Latar Belakangunclassified

Penilaian tingkat keberhasilan perawatan ortodonti dengan piranti lepasan berdasarkan parameter intermolar distance, inter dm2 distance, dan koreksi anterior crowding (Kajian Pada Pasien Anak Usia 7 – 10 Tahun di RSGM-P Universitas Trisakti Tahun 2017 -

Asima Hutapea,

Halim

2023

JKGT

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Background: Removable orthodontic appliance is one of the solutions of malocclusion problems in Indonesia. This appliance can treat mild to moderate dental malocclusion, such as Class I Angle, and can be removed by patients under the supervision of a dentist. Assessment of the success rate of removable orthodontic treatment can be performed using intermolar and inter dm2 distance measurements with anterior crowding correction. Objective: To determine orthodontic treatment success rate using removable appliance based on intermolar and inter dm2 distance measurement with anterior crowding correction in children aged 7-10 years at RSGM-P Trisakti University 2017-2019. Methods: The study was observational analytic to perform measurements of anterior crowding, intermolar, and inter dm2 distance on 26 pairs of the study model were selected using a random sampling method. Results: 19 patients have an increase in width at intermolar distance maxillary parameter and 22 patients at the mandibular (range 0.5 - 7 mm). 24 patients have an increase in width at inter dm2 distance maxillary parameter and 23 patients at mandibular (range 0.5 - 4 mm). All patients have an intermolar distance that exceeds the Pont prediction before orthodontic treatment. Conclusion: There were significant differences in maxillary and mandibular intermolar and inter dm2 distance parameters measurement of the study model before and after orthodontic treatment (p <0.05). There was no significant difference in anterior crowding parameter measurement of the study model before and after orthodontic treatment (p> 0.05).

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“…The variables described by this irregularity index were adapted to be evaluated on the maxillary arch. This adaptation was used in previous studies 14) . Each linear displacement between 5 anatomic contact points (A, B, C, D, E) of the anterior teeth were measure.…”

Section: Conversion Of Dental Cast Into Laser Scanned 3d Dental Modelsmentioning

confidence: 99%

Validity and Reliability of Arch Size Measurements Using Laser Scanned 3D Model

Massoud

Alam

Rahman

et al. 2016

J. Hard Tissue Biology.

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The purpose of this study was to evaluate the validity and reliability of orthodontic measurements made on laser scanned 3D models created with NextEngine laser scanner and ScanStudioHD software. The data sources were plaster dental models from the archives of School of Dental Sciences, Universiti Sains Malaysia. A total of 100 dental models with 800 variables were measured using the plaster dental casts and laser scanned 3D models. The arch width, arch length, arch perimeter, LII, OJ and OB were measured by digital caliper (DC) and ScanStudio HD software. The validity (accuracy) of the digital measurements showed no statistical difference in any of the measurements performed. The reliability coefficient values were comparable between laser scanned 3D models and measurements using DC, the ICC coefficients were statistically significant (p<0.001), and the values of coefficient were in the range of strong correlation. The results show that linear measurements of dental casts using laser scanned 3D models are valid and reliable and can be used for various clinical orthodontic procedures.

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Stability of maxillary anterior crowding treatment

Cited by 5 publications

References 25 publications

Alignment Efficiency of Open-Coil Spring Versus Conventional Technique in Relieving Anterior Crowding: A Single-Center Randomized Clinical Trial

Alignment Efficiency of Open-Coil Spring Versus Conventional Technique in Relieving Anterior Crowding: A Single-Center Randomized Clinical Trial

Penilaian tingkat keberhasilan perawatan ortodonti dengan piranti lepasan berdasarkan parameter intermolar distance, inter dm2 distance, dan koreksi anterior crowding (Kajian Pada Pasien Anak Usia 7 – 10 Tahun di RSGM-P Universitas Trisakti Tahun 2017 -

Validity and Reliability of Arch Size Measurements Using Laser Scanned 3D Model

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