Reliability of Panoramic Radiography for Vertical Facial Pattern Assessment Assessment

IF 0.2 Q4 DENTISTRY, ORAL SURGERY & MEDICINE Journal of Dentistry Indonesia Pub Date : 2020-12-31 DOI:10.14693/JDI.V27I3.1159
Waqar Jeelani, Maheen Ahmed, Shakeel Ahmed
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Abstract

The orthopantomogram (OPG) is a common dental screening radiograph that has multiple implications. However, lateral cephalogram is the investigation of choice for the assessment of vertical facial pattern. Objective: The aim of the current study was to investigate the validity of an OPG parameter i.e. panoramic gonial angle (PGoA) for the assessment of the vertical facial pattern. Methods: A cross-sectional study was conducted on the pretreatment OPG and lateral cephalograms of 200 orthodontic patients aged 15-40 years. The PGoA was measured on both sides and an average was used for statistical analysis. The Pearson’s correlations of PGoA were measured with cephalometric gonial angle (CGoA), SN-GoGn, MMA, FMA, LAFH/TAFH% and PFH/TAFH%. The diagnostic test statistics were applied for PGoA against gold standard “definitive diagnosis (DD)” derived from SN GoGn and FMA. A p-value of <0.05 was taken as statistically significant. Results: The mean CGoA was 121.18o ± 5.16o which was significantly different (p <0.001) from the mean PGoA 117.14o ± 4.43o. PGoA was significantly correlated with SN-GoGn, MMA, FMA and CGoA. A standard of PGoA 116o±3o was used to classify subjects into low angle, normal angle and high angle groups. The validity of PGoA with DD showed a sensitivity of 90.32%, 82.72% and 77.78%; and specificity of 95.37%, 84.48% and 91.96% for low angle, normal angle and high angle cases, respectively. Conclusion: The current study identifies PGoA as a valid tool for the assessment of vertical facial pattern of orthodontic patients with its normal value 116o±3o in our sample.
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全景摄影用于面部垂直模式评估的可靠性
正位体描记图(OPG)是一种常见的牙科筛查射线照片,具有多种含义。然而,侧位头影是评估垂直面部模式的首选调查方法。目的:本研究的目的是研究OPG参数,即全景角度(PGoA)用于评估面部垂直模式的有效性。方法:对200例15~40岁口腔正畸患者进行口腔正畸前OPG和侧位头影的横断面研究。测量两侧的PGoA,并使用平均值进行统计分析。PGoA的Pearson相关性用头影测量角(CGoA)、SN GoGn、MMA、FMA、LAFH/TAFH%和PFH/TAFH%来测量。根据SN GoGn和FMA得出的金标准“最终诊断(DD)”,对PGoA应用诊断测试统计数据。p值<0.05被视为具有统计学意义。结果:平均CGoA为121.18o±5.16o,与平均PGoA 117.14o±4.43o有显著性差异(p<0.001)。PGoA与SN-GoGn、MMA、FMA和CGoA显著相关。采用PGoA 116o±3o标准将受试者分为低角度组、正常角度组和高角度组。PGoA与DD的有效性分别为90.32%、82.72%和77.78%;对低角度、正常角度和高角度病例的特异性分别为95.37%、84.48%和91.96%。结论:目前的研究表明,PGoA是评估正畸患者垂直面部模式的有效工具,其正常值为116o±3o。
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来源期刊
Journal of Dentistry Indonesia
Journal of Dentistry Indonesia DENTISTRY, ORAL SURGERY & MEDICINE-
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11
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