Two-dimensional versus three-dimensional Frӓnkel Manoeuvre: a reproducibility study

Author:

Rongo Roberto1ORCID,Bucci Rosaria1,Adaimo Raffaella1,Amato Massimo2,Martina Stefano2,Valletta Rosa1,D’antò Vincenzo1ORCID

Affiliation:

1. School of Orthodontics, Department of Neurosciences, Reproductive Sciences and Oral Sciences, University of Naples ‘Federico II’, Naples, Italy

2. Department of Medicine and Surgery, University of Salerno, Salerno, Italy

Abstract

Summary Background/Objectives To assess intra- and inter-observer reproducibility of the evaluation of the Frӓnkel Manoeuvre (FM) on three-dimensional (3D) scans and to compare it to the assessment on two-dimensional (2D) pictures. Materials/Methods This study included 44 individuals with a skeletal Class II malocclusion [9–16-years old mean age ± standard deviation: 13.5 ± 2.01 years]. All patients had a full Class II molar relationship, overjet ≥6 mm and point A, Nasion, point B angle (ANB) ≥5 degrees. During the FM, each patient was invited to bite in centric occlusion and then to posture the mandible forward to reach a Class I molar relationship. The FM was recorded both by a normal camera and a 3D scanner (3dMD system). Six examiners divided into two groups according to their orthodontic clinical experience (<5 and >10 years), and one gold standard in the evaluation of FM, commented twice (every 15 days) on both 2D photographs (T0 and T2) and 3D scans (T1 and T3). The intra-observer agreement and the inter-observer agreement compared to the gold standard were evaluated by computing the Cohen’s K. Results The agreement between observations for each examiner ranged from 0.36 to 1 on 2D pictures (T0 versus T2), and from 0.22 to 0.69 on 3D scans (T1 versus T3). The overall agreement was 0.63 (95 per cent CI = 0.35–0.91) in 2D analysis and 0.5 (95 per cent CI = 0.35–0.64) in 3D analysis. Conclusions/Implications The FM was less reproducible when performed on 3D records than on 2D pictures.

Publisher

Oxford University Press (OUP)

Subject

Orthodontics

Reference30 articles.

1. Components of class II malocclusion in children 8-10 years of age;McNamara;The Angle Orthodontist,,1981

2. Is there an association between various aspects of oral health in Southern Italy children? An epidemiological study assessing dental decays, periodontal status, malocclusions and temporomandibular joint function;Paduano;European Journal of Paediatric Dentistry,,2018

3. Update on the Wits appraisal;Jacobson;The Angle Orthodontist,,1988

4. An analysis of the variation of the ANB angle: a statistical appraisal;Järvinen;American Journal of Orthodontics,,1985

5. Facial keys to orthodontic diagnosis and treatment planning. Part I;Arnett;American Journal of Orthodontics and Dentofacial Orthopedics,,1993

Cited by 19 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3