Comparative analysis of the gonial angle on lateral cephalometric radiographs and panoramic radiographs

Araki, Masao; Kiyosaki, Takeshi; Sato, Mai; Kohinata, Kiyomi; Matsumoto, K; Honda, Kazumasa

doi:10.2334/josnusd.57.373

Cited by 15 publications

(15 citation statements)

References 44 publications

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“…Shahabi et al13 compared the external gonial angle determined using lateral cephalograms and panoramic radiographs of class I patients and concluded that panoramic radiography could be used for determining the gonial angle as accurately as a lateral cephalogram. Araki et al,14 in 2015, compared the gonial angles measured using 49 panoramic radiographs with the gonial angle estimated using lateral cephalometric radiographs taken from 2 dry mandibles and found that the gonial angle measurements were slightly smaller on the panoramic radiographs than on the lateral cephalometric radiographs. Alhaija et al15 evaluated the potential of panoramic radiographs to measure mandibular inclination and steepness; they observed a high correlation between the measurements taken using both types of radiographs.…”

Section: Discussionmentioning

confidence: 99%

Dilemma of gonial angle measurement: Panoramic radiograph or lateral cephalogram

Radhakrishnan¹,

Varma²,

Ajith³

2017

Imaging Sci Dent

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PurposeThe purpose of this study was to evaluate the accuracy of panoramic imaging in measuring the right and left gonial angles by comparing the measured angles with the angles determined using a lateral cephalogram of adult patients with class I malocclusion.Materials and MethodsThe gonial angles of 50 class I malocclusion patients (25 males and 25 females; mean age: 23 years) were measured using both a lateral cephalogram and a panoramic radiograph. In the lateral cephalograms, the gonial angle was measured at the point of intersection of the ramus plane and the mandibular plane. In the panoramic radiographs, the gonial angle was measured by drawing a line tangent to the lower border of the mandible and another line tangent to the distal border of the ascending ramus and the condyle on both sides. The data obtained from both radiographs were statistically compared.ResultsNo statistically significant difference was observed between the gonial angle measured using the lateral cephalograms and that determined using the panoramic radiographs. Further, there was no statistically significant difference in the measured gonial angle with respect to gender. The results also showed a statistically insignificant difference in the mean of the right and the left gonial angles measured using the panoramic radiographs.ConclusionAs the gonial angle measurements using panoramic radiographs and lateral cephalograms showed no statistically significant difference, panoramic radiography can be considered in orthodontics for measuring the gonial angle without any interference due to superimposed images.

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Section: Discussionmentioning

confidence: 99%

Dilemma of gonial angle measurement: Panoramic radiograph or lateral cephalogram

Radhakrishnan¹,

Varma²,

Ajith³

2017

Imaging Sci Dent

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“…Araki et al . [ 7 ] in his study, found that the gonial angle measurements were slightly smaller on the panoramic radiographs than on the lateral cephalometric radiographs.…”

Section: Discussionmentioning

confidence: 94%

Comparison of orthopantomogram and lateral cephalogram for mandibular measurements

Kumar¹,

Thailavathy²,

Srinivasan³

et al. 2017

J Pharm Bioall Sci

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Aim:The aim of the present study is to clarify the possible application of orthopantomogram (OPG) for evaluating craniofacial specifications such as angular and linear measurements of the mandible by comparing with lateral cephalogram.Materials and Methods:OPG and lateral cephalogram were taken from 100 patients of age group 16–35 years from Chettinad Dental College and Research Institute. Linear measurements (body length and ramus height) and angular measurement (gonial angle) were assessed both in lateral cephalogram and OPG. Independent t-test was performed for comparison of OPG and lateral cephalogram using SPSS with a probability level of P < 0.05 considered to be statistically significant.Results:The results of the present study show that there is no statistically significant difference in ramus height and gonial angle when compared between OPG and lateral cephalogram while statistically significant difference exists for body length between OPG and lateral cephalogram.Conclusion:It may be concluded that panoramic radiography can be used to determine the gonial angle and ramus height as accurately as a lateral cephalogram. However, clinicians should be vigilant when predicting horizontal measurement from OPGs.

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“…This was because in the posterior and lateral aspects of the mandible, the angular values are not influenced by image distortion inherent with panoramic radiography. In a most recent study, Araki et al 21 in 2015 compared gonial angles measured from 49 panoramic radiographs with the gonial angle on lateral cephalometric radiographs taken for 2 dry mandibles. The gonial angle measurements were slightly smaller on the panoramic radiographs than on the lateral cephalometric radiographs.…”

Section: Discussionmentioning

confidence: 99%

Accuracy of Assessment of Gonial Angle by Both Hemispheres of Panoramic Images and Its Comparison with Lateral Cephalometric Radiographic Measurements

Kundi¹

2016

JDHODT

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Background: One of the most important values in cephalometric tracing is the gonial angle which is used to measure growth pattern of patients, teeth extraction pattern in Class II patients, surgical decision in class III skeletal base patients and age estimation in forensic medicine. Gonial angle measured from panoramic radiograph is found to be more reliable than lateral cephalometric radiograph. In the latter, superimposition of the left and right sides angle, makes it difficult to measure accurately gonial angle. Aims: I aimed at testing the similarity of left and right sides of Orthopantomography in measuring the gonial angle vs. its measurement from lateral cephalometric radiograph. Materials and methods: This cross-sectional hospital files-based study of patients visited the Staff Clinic of

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Comparative analysis of the gonial angle on lateral cephalometric radiographs and panoramic radiographs

Cited by 15 publications

References 44 publications

Dilemma of gonial angle measurement: Panoramic radiograph or lateral cephalogram

Dilemma of gonial angle measurement: Panoramic radiograph or lateral cephalogram

Comparison of orthopantomogram and lateral cephalogram for mandibular measurements

Accuracy of Assessment of Gonial Angle by Both Hemispheres of Panoramic Images and Its Comparison with Lateral Cephalometric Radiographic Measurements

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