Study on the consistency of using different methods to analyze the relationship between the mandibular and maxillary width
HAN Yu-jia
CUI Yu-tong
LI Qian-wen
ZHAO Wan-ting
TIAN Yu-lou
Abstract：Objective Center of the alveolar crest(CAC),Ricketts posteroanterior(PA)analysis,and University of Penn-sylvania cone beam CT(Penn CBCT)analysis are used to analyze and diagnose the relationship between maxillary and mandibular width and to evaluate consistency.Methods The data of 93 patients newly diagnosed with permanent denti-tion who were expected to undergo orthodontic treatment at the Affiliated Stomatological Hospital of China Medical Uni-versity from 2017 to 2021 were selected.Maxillary and mandibular width were measured by the CAC,Ricketts PA analy-sis,and Penn CBCT to calculate width differences.The width discrepancy was calculated by comparing the width differ-ences with the theoretical standard deviation.We defined a discrepancy＞0 as maxillary transverse deficiency,and a dis-crepancy ≤ 0 as no maxillary transverse deficiency.The results were tested by Kappa consistency.Results In the diag-nosis and analysis of maxillary and mandibular width,the agreement of the three methods was average(Kappa value was 0.445);the agreement between CAC and Penn CBCT was high(Kappa value was 0.710);the agreement between Rick-etts PA analysis and Penn CBCT was fair(Kappa value was 0.353);the agreement between CAC and Ricketts PA analy-sis was fair(Kappa value was 0.289).Conclusion The CAC is an accurate method in analyzing and diagnosing the re-lationship between maxillary and mandibular width in cases without CBCT data,Ricketts PA analysis alone is not recom-mended in this analysis.
Keywords：plaster castposteroanterior cephalogramcone beam CTmaxillary and mandibular width
Publication Date：2024-02-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 56-61 )