An evaluation of the shape of some popular nickel titanium alloy preformed arch wires

Braun, Stanley; Hnat, William P.; Leschinsky, Reena; Legan, Harry L.

doi:10.1016/s0889-5406(99)70297-0

Cited by 48 publications

(41 citation statements)

References 8 publications

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“…Our results confirm previously published works [8][9][10] indicating that preformed archwires are available matching both the inter-canine and first molar widths of dental arches. However, the need to stock many different commercial archwires to find a few such wires matching a particular dental arch form is not economical.…”

Section: Discussionsupporting

confidence: 92%

“…Braun reports 3MUnitek's Orthoform I and II wires and Ormco's Broad arch form have significantly larger inter-canine and first molar widths compared to dental arch forms in both maxillary and mandibular arches of Caucasian patients [8]. Comparing the mandibular arch of Japanese Class I patients to common archwire forms, Oda reports 3M Unitek Orthoform I and III wires have significantly smaller intercanine and first molar widths [9].…”

Section: Discussionmentioning

confidence: 99%

“…3MUnitek Orthoform I tapered Braun [8] Caucasian GT GT GT GT Oda [9] Japanese LT LT -17]: Summary of preformed archwire inter-canine and first molar widths compared to dental class i measurements Key: ICW=inter-canine width, FMW=inter first molar width, EQ=archwire and dental arch mean widths are statistically equal, GT=archwire width is greater than dental arch width, LT=archwire width is less than dental arch width, M=male, F=female …”

mentioning

confidence: 99%

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Clinical Implications of Preformed Archwire Selection on the Treatment of Angle Class I/II division 1 Malocclusions in Thais

Dacha

Sawaengkit

Chaiwat

et al. 2015

JCDR

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Clinical Implications of Preformed Archwire Selection on the Treatment of Angle Class I/II division 1 Malocclusions in Thais

Dacha

Sawaengkit

Chaiwat

et al. 2015

JCDR

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“…21 Therefore, evaluation of the relationship between the position of 3D virtual brackets and 3D virtual setup models could help clinicians understand the possible ''round tripping'' movement of teeth in the finishing stage.…”

Section: Discussionmentioning

confidence: 99%

“…Although Braun et al 21 used the spatial coordinates of the labial and buccal dental/ bracket interfacing surfaces in the upper and lower arches, information about arch coordination with ''3 mm'' overjet through whole areas between the upper and lower bracket slots is lacking.…”

Section: Introductionmentioning

confidence: 99%

Overjet at the Anterior and Posterior Segments: Three-Dimensional Analysis of Arch Coordination

Kook

Bayome

Park

et al. 2009

The Angle Orthodontist

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Objectives:To compare the amounts of anatomical overjet measured from facial axis (FA) points with the amounts of bracket overjet measured from bracket slot center (BSC) points. Materials and Methods: The samples consisted of 27 subjects with normal occlusion whose models were fabricated with a three-dimensional (3D) scanner and the 3Txer program (Orapix Co Ltd, Seoul, Korea). 3D virtual brackets (0.022Љ Slot, MBT setup, 3M Unitek, Monrovia, Calif) constructed with a 3D-CAD program were placed on an FA point with the 3Txer program. The arch dimension and the amounts of overjet from FA and BSC points were measured. Paired t-tests and analysis of variance (ANOVA) tests were used for statistical analysis. Results: No significant difference in arch width and depth was observed between FA and BSC points. Although the amounts of overjet measured from FA points showed homogenous distribution, a tendency to decrease from the anterior segment (2.3 mm) to the posterior one (2.0 mm) was noted. However, the amounts of overjet measured from BSC points were variable, especially in the premolar and molar areas. Significant discrepancies in the amounts of overjet in most of the areas between FA and BSC points (more than P Ͻ .05), except the lower second premolar and second molar areas, were reported, even though insets and offsets are part of the prescription for the base of straight-wire appliance (SWA) brackets. Conclusions:The hypotheses that the amount of overjet measured from BSC points was 3 mm through the whole segments and that distribution of the amounts of overjet from BSC points was the same as that from FA points were rejected. (Angle Orthod. 2009;79:495-501.)

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Mathematical beta function formulation for maxillary arch form prediction in normal occlusion population

et al. 2016

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The aim of this study was to assess the dental arch curvature in subjects with normal occlusion in an Iranian population and propose a beta function formula to predict maxillary arch form using the mandibular intermolar widths (IMW) and intermolar depths (IMD). The materials used were study casts of 54 adolescents with normal occlusion and mean age of 14.1 years (25 males, 29 females, age range 12-16 years). Curve-fitting analyses were carried out and the curves passing through the facial-axis point of the canines, premolars, first molars, and the incisal edges of the anterior teeth were studied using a 3D laser scanner. Using the measured IMW and IMD of the dental arches at the maxillary and mandibular first molar region, a beta function formula proposed for predicting maxillary arch form. The accuracy of the proposed formula was assessed on 10 randomly selected dental casts. The mean (SD) of the maxillary and mandibular IMW and IMD were 57.92 (4.75), 54.19 (5.31), and 31.59 (2.90) and 28.10 (2.59) mm, respectively. There was no gender dimorphism (P > 0.05) for both variables (IMW, IMD). There was a strong positive association (n = 10, Pearson r = 0.98, P < 0.05) between the measured (actual) maxillary arch length and proposed arch length derived from generated formula. The goodness of fit (whole arch) for the proposed beta function formula, using adjusted r square measure and root mean square in 10 patients averaged 0.97 and 1.49 mm, respectively. The corresponding figures for the maxillary anterior arch (canine to canine) were 0.90 and 0.92 mm, respectively. The proposed beta function formula used for predicting maxillary arch form based on two mandibular measures (IMW, IMD) was found to have a high accuracy for maxillary arch prediction in the Iranian population and may be used as a guide to fabricate customized arch wires or as an aid in maxillary reconstructive surgery.

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An evaluation of the shape of some popular nickel titanium alloy preformed arch wires

Cited by 48 publications

References 8 publications

Clinical Implications of Preformed Archwire Selection on the Treatment of Angle Class I/II division 1 Malocclusions in Thais

Clinical Implications of Preformed Archwire Selection on the Treatment of Angle Class I/II division 1 Malocclusions in Thais

Overjet at the Anterior and Posterior Segments: Three-Dimensional Analysis of Arch Coordination

Mathematical beta function formulation for maxillary arch form prediction in normal occlusion population

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