Evidence supporting the use of cone-beam computed tomography in orthodontics

Vlijmen, Olivier J.C. van; Kuijpers, Mette A.R.; Bergé, Stefaan; Schols, Jan G. J. H.; Maal, T.J.J.; Breuning, Hero; Kuijpers-Jagtman, Anne Marie

doi:10.14219/jada.archive.2012.0148

Cited by 102 publications

(82 citation statements)

References 64 publications

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“…Even though there is an inherent limitation of this study, as the nasopharyngeal airway is a threedimensional structure and was evaluated two dimensionally on lateral cephalometric films, such films have been used extensively to study airway dimensions. 26,27 A high correlation between posterior airway size on cephalometric radiographs and pharyngeal volume measured on tomographic scans has been reported. 28 Furthermore, Miles et al 29 reported a high reliability of identification of the commonly used cephalometric landmarks and measurements.…”

Section: Discussionmentioning

confidence: 95%

Effects of fixed functional therapy on tongue and hyoid positions and posterior airway

Özdemir

Ulkur

Nalbantgil

2013

The Angle Orthodontist

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Objective: To evaluate how therapy with a fixed functional appliance affects airway dimensions, dentoalveolar changes, and tongue and hyoid positions. Materials and Methods: A retrospective study was carried out on 46 pre-and posttreatment lateral cephalometric radiographs of 23 post-peak Class II patients (12 girls, 11 boys) treated with a Forsus Fatigue Resistant Device (FRD) appliance. The radiographies were taken at the start and at the end of Forsus FRD appliance therapy when a Class I or overcorrected Class I canine and molar relationship was achieved. The process took an average of 5 months 13 days 6 1 month 4 days. Skeletal and dental parameters were measured using Dolphin software, and the sagittal airway area was measured by AutoCAD software. Results: Analyses of the pre-and posttreatment means revealed that there was no statistically significant skeletal correction of the sagittal malocclusion; increase of lower incisor inclination, decrease of upper incisor inclination, decrease of interincisal angle, and rotation of occlusal plane all contributed to the reduction of overjet. The tongue area and intermaxillary space area increased in response to these dentoalveolar changes; however, there was no statistically significant change in the hyoid position or the oropharyngeal area between the two time points. Conclusions: The dentoalveolar changes produced by Forsus FRD appliance did not cause any significant posterior airway changes in young adult patients. (Angle Orthod. 2014;84:260-264.)

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Section: Discussionmentioning

confidence: 95%

Effects of fixed functional therapy on tongue and hyoid positions and posterior airway

Özdemir

Ulkur

Nalbantgil

2013

The Angle Orthodontist

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“…Cone-beam computed tomography is a useful method for the simultaneous evaluation of both the soft and hard tissues but is often not suitable for retrospective samples because of the unnecessary dose of radiation. 16 An alternative method to capture this information involves the combined use of pretreatment head films to evaluate the hard tissues and 3D scanners to assess the soft tissues. The latter method has the advantages of being noninvasive, free of radiation, and able to be used on large numbers of healthy people.…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional evaluation of the relationship between jaw divergence and facial soft tissue dimensions

Rongo

Antoun

Lim

et al. 2014

The Angle Orthodontist

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Objective: To evaluate the relationship between mandibular divergence and vertical and transverse dimensions of the face. Materials and Methods: A sample was recruited from the orthodontic clinic of the University of Otago, New Zealand. The recruited participants (N 5 60) were assigned to three different groups based on the mandibular plane angle (hyperdivergent, n 5 20; normodivergent, n 5 20; and hypodivergent, n 5 20). The sample consisted of 31 females and 29 males, with a mean age of 21.1 years (SD 6 5.0). Facial scans were recorded for each participant using a three-dimensional (3D) white-light scanner and then merged to form a single 3D image of the face. Vertical and transverse measurements of the face were assessed from the 3D facial image.

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“…Despite all radiation exposure guidelines recommending against routine radiographic exposure of any kind [8][9][10][11][12], some orthodontists are advocating routinely taking cone beam computer tomographs (CBCT) on all orthodontic patients, including children, only to convert them into two dimensional cephalometric radiographs to perform traditional measurements developed over half a century ago [13][14][15][16][17]. Systematic reviews have concluded that there is no high quality evidence to support the use of CBCT in orthodontics [18,19] and cephalometric radiographs have been shown not to contribute significantly to treatment planning decisions [20][21][22]. Despite the radiation we routinely expose our patients to, we frequently plan the position of the teeth based on an unrelated view of the dental arches orientated with the occlusal plane parallel to the floor.…”

mentioning

confidence: 99%

Can less be more in orthodontic diagnosis?

2015

Dent Oral Craniofac Res

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Evidence supporting the use of cone-beam computed tomography in orthodontics

Cited by 102 publications

References 64 publications

Effects of fixed functional therapy on tongue and hyoid positions and posterior airway

Effects of fixed functional therapy on tongue and hyoid positions and posterior airway

Three-dimensional evaluation of the relationship between jaw divergence and facial soft tissue dimensions

Can less be more in orthodontic diagnosis?

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