Seema Gupta , Amit Kumar Mendiratta , Mubasshir Ahmed Shaikh , Hibu Dora , Salim Shamsuddin , Sameena Begum Maqhbool
{"title":"CBCT 与经龈探查法牙龈厚度的比较以及牙龈表型临界值的估算--一项成人横断面研究。","authors":"Seema Gupta , Amit Kumar Mendiratta , Mubasshir Ahmed Shaikh , Hibu Dora , Salim Shamsuddin , Sameena Begum Maqhbool","doi":"10.1016/j.ortho.2024.100892","DOIUrl":null,"url":null,"abstract":"<div><h3>Aim</h3><p>Gingival phenotype (GP) is regarded as a valuable indicator for forecasting the probability of attaining favourable aesthetic and functional results with orthodontic treatment. This study aimed to investigate the accuracy and reproducibility of cone beam computed tomography (CBCT) for assessing gingival thickness (GT) in both arches compared to the transgingival probing method. The secondary objective was to determine the optimal cut-off values for GT using CBCT.</p></div><div><h3>Methods</h3><p>This cross-sectional study was conducted where GP was determined based on the probe transparency method (TRAN). The GT measurements were obtained by both methods at 2<!--> <!-->mm from the free gingival margin (FGM) for all teeth anterior to the first molar. The data was statistically analysed using intraclass correlation coefficient (ICC), Bland–Altman plots, and receiver operating characteristic (ROC) curves. The statistical significance level was set at a <em>P</em>-value<!--> <!--><<!--> <!-->0.05.</p></div><div><h3>Results</h3><p>The study included 60 subjects (1200 teeth). The mean GT in both the maxillary (1.14<!--> <!-->±<!--> <!-->0.17<!--> <!-->mm) and mandibular (0.94<!--> <!-->±<!--> <!-->0.15<!--> <!-->mm) arches was significantly greater (<em>P</em> <!--><<!--> <!-->0.05) for the transgingival probing method than for the CBCT method. As shown in the Bland–Altman plot, the bias between the two methods was greater in the maxillary jaw (0.060; 95% CI: 0.044 to 0.076) and in individuals with a thick GP (0.096; 95% CI: 0.082 to 0.109). The optimal values for GT measurements were 1.15<!--> <!-->mm for the maxillary jaw, 1.02<!--> <!-->mm for the mandibular jaw, 1.02<!--> <!-->mm for males, and 1.09<!--> <!-->mm for females.</p></div><div><h3>Conclusions</h3><p>CBCT exhibited notable precision in diagnosing GT, while demonstrating minimal disparities compared to the conventional transgingival probing technique, particularly evident in thin GPs, and in the mandibular dental arch. The constraints associated with the utilization of CBCT were observed in the maxillary arch and in cases with thick GP.</p></div>","PeriodicalId":45449,"journal":{"name":"International Orthodontics","volume":"22 3","pages":"Article 100892"},"PeriodicalIF":1.8000,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Comparison of gingival thickness by CBCT versus transgingival probing and estimation of cut-off values for gingival phenotype – A cross-sectional study in adults\",\"authors\":\"Seema Gupta , Amit Kumar Mendiratta , Mubasshir Ahmed Shaikh , Hibu Dora , Salim Shamsuddin , Sameena Begum Maqhbool\",\"doi\":\"10.1016/j.ortho.2024.100892\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><h3>Aim</h3><p>Gingival phenotype (GP) is regarded as a valuable indicator for forecasting the probability of attaining favourable aesthetic and functional results with orthodontic treatment. This study aimed to investigate the accuracy and reproducibility of cone beam computed tomography (CBCT) for assessing gingival thickness (GT) in both arches compared to the transgingival probing method. The secondary objective was to determine the optimal cut-off values for GT using CBCT.</p></div><div><h3>Methods</h3><p>This cross-sectional study was conducted where GP was determined based on the probe transparency method (TRAN). The GT measurements were obtained by both methods at 2<!--> <!-->mm from the free gingival margin (FGM) for all teeth anterior to the first molar. The data was statistically analysed using intraclass correlation coefficient (ICC), Bland–Altman plots, and receiver operating characteristic (ROC) curves. The statistical significance level was set at a <em>P</em>-value<!--> <!--><<!--> <!-->0.05.</p></div><div><h3>Results</h3><p>The study included 60 subjects (1200 teeth). The mean GT in both the maxillary (1.14<!--> <!-->±<!--> <!-->0.17<!--> <!-->mm) and mandibular (0.94<!--> <!-->±<!--> <!-->0.15<!--> <!-->mm) arches was significantly greater (<em>P</em> <!--><<!--> <!-->0.05) for the transgingival probing method than for the CBCT method. As shown in the Bland–Altman plot, the bias between the two methods was greater in the maxillary jaw (0.060; 95% CI: 0.044 to 0.076) and in individuals with a thick GP (0.096; 95% CI: 0.082 to 0.109). The optimal values for GT measurements were 1.15<!--> <!-->mm for the maxillary jaw, 1.02<!--> <!-->mm for the mandibular jaw, 1.02<!--> <!-->mm for males, and 1.09<!--> <!-->mm for females.</p></div><div><h3>Conclusions</h3><p>CBCT exhibited notable precision in diagnosing GT, while demonstrating minimal disparities compared to the conventional transgingival probing technique, particularly evident in thin GPs, and in the mandibular dental arch. The constraints associated with the utilization of CBCT were observed in the maxillary arch and in cases with thick GP.</p></div>\",\"PeriodicalId\":45449,\"journal\":{\"name\":\"International Orthodontics\",\"volume\":\"22 3\",\"pages\":\"Article 100892\"},\"PeriodicalIF\":1.8000,\"publicationDate\":\"2024-06-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Orthodontics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1761722724000482\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"DENTISTRY, ORAL SURGERY & MEDICINE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Orthodontics","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1761722724000482","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"DENTISTRY, ORAL SURGERY & MEDICINE","Score":null,"Total":0}
引用次数: 0
摘要
目的：牙龈表型（GP）被认为是预测正畸治疗获得良好的美学和功能效果概率的重要指标。本研究旨在探讨锥形束计算机断层扫描（CBCT）与经龈探查法相比，在评估双牙弓牙龈厚度（GT）方面的准确性和可重复性。次要目的是确定使用 CBCT 评估牙龈厚度的最佳临界值：这项横断面研究根据探针透明度法（TRAN）确定牙龈厚度。两种方法都是在距第一磨牙前方所有牙齿的游离龈缘 (FGM) 2 毫米处进行 GT 测量。使用类内相关系数（ICC）、Bland-Altman 图和接收者操作特征曲线（ROC）对数据进行统计分析。统计显著性水平设定为 P 值：研究包括 60 名受试者（1200 颗牙齿）。上颌牙弓（1.14±0.17 毫米）和下颌牙弓（0.94±0.15 毫米）的平均 GT 都明显大于 PC 结论：CBCT 在诊断牙齿畸形方面具有显著的精确性：CBCT 在诊断 GT 方面表现出显著的精确性，同时与传统的龈下探查技术相比差异极小，尤其是在薄 GP 和下颌牙弓方面。在上颌牙弓和GP较厚的病例中观察到了与使用CBCT相关的限制因素。
Comparison of gingival thickness by CBCT versus transgingival probing and estimation of cut-off values for gingival phenotype – A cross-sectional study in adults
Aim
Gingival phenotype (GP) is regarded as a valuable indicator for forecasting the probability of attaining favourable aesthetic and functional results with orthodontic treatment. This study aimed to investigate the accuracy and reproducibility of cone beam computed tomography (CBCT) for assessing gingival thickness (GT) in both arches compared to the transgingival probing method. The secondary objective was to determine the optimal cut-off values for GT using CBCT.
Methods
This cross-sectional study was conducted where GP was determined based on the probe transparency method (TRAN). The GT measurements were obtained by both methods at 2 mm from the free gingival margin (FGM) for all teeth anterior to the first molar. The data was statistically analysed using intraclass correlation coefficient (ICC), Bland–Altman plots, and receiver operating characteristic (ROC) curves. The statistical significance level was set at a P-value < 0.05.
Results
The study included 60 subjects (1200 teeth). The mean GT in both the maxillary (1.14 ± 0.17 mm) and mandibular (0.94 ± 0.15 mm) arches was significantly greater (P < 0.05) for the transgingival probing method than for the CBCT method. As shown in the Bland–Altman plot, the bias between the two methods was greater in the maxillary jaw (0.060; 95% CI: 0.044 to 0.076) and in individuals with a thick GP (0.096; 95% CI: 0.082 to 0.109). The optimal values for GT measurements were 1.15 mm for the maxillary jaw, 1.02 mm for the mandibular jaw, 1.02 mm for males, and 1.09 mm for females.
Conclusions
CBCT exhibited notable precision in diagnosing GT, while demonstrating minimal disparities compared to the conventional transgingival probing technique, particularly evident in thin GPs, and in the mandibular dental arch. The constraints associated with the utilization of CBCT were observed in the maxillary arch and in cases with thick GP.
期刊介绍：
Une revue de référence dans le domaine de orthodontie et des disciplines frontières Your reference in dentofacial orthopedics International Orthodontics adresse aux orthodontistes, aux dentistes, aux stomatologistes, aux chirurgiens maxillo-faciaux et aux plasticiens de la face, ainsi quà leurs assistant(e)s. International Orthodontics is addressed to orthodontists, dentists, stomatologists, maxillofacial surgeons and facial plastic surgeons, as well as their assistants.
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