• 文献检索
  • 文档翻译
  • 深度研究
  • 学术资讯
  • Suppr Zotero 插件Zotero 插件
  • 邀请有礼
  • 套餐&价格
  • 历史记录
应用&插件
Suppr Zotero 插件Zotero 插件浏览器插件Mac 客户端Windows 客户端微信小程序
定价
高级版会员购买积分包购买API积分包
服务
文献检索文档翻译深度研究API 文档MCP 服务
关于我们
关于 Suppr公司介绍联系我们用户协议隐私条款
关注我们

Suppr 超能文献

核心技术专利：CN118964589B侵权必究
粤ICP备2023148730 号-1Suppr @ 2026

文献检索

告别复杂PubMed语法，用中文像聊天一样搜索，搜遍4000万医学文献。AI智能推荐，让科研检索更轻松。

立即免费搜索

文件翻译

保留排版，准确专业，支持PDF/Word/PPT等文件格式，支持 12+语言互译。

免费翻译文档

深度研究

AI帮你快速写综述，25分钟生成高质量综述，智能提取关键信息，辅助科研写作。

立即免费体验

使用口腔内数字扫描仪评估有牙颌和无牙颌受试者的下颌正中弯曲值。

Evaluation of median mandibular flexure values in dentulous and edentulous subjects by using an intraoral digital scanner.

作者信息

Gülsoy Merve, Tuna Süleyman Hakan, Pekkan Gürel

机构信息

Department of Prosthodontics, Faculty of Dentistry, Süleyman Demirel University, Isparta, Turkey.

Department of Prosthodontics, Faculty of Dentistry, Tekirdag Namik Kemal University, Tekirdag, Turkey.

出版信息

J Adv Prosthodont. 2022 Feb;14(1):32-44. doi: 10.4047/jap.2022.14.1.32. Epub 2022 Feb 25.

DOI:10.4047/jap.2022.14.1.32
PMID:35284055
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8891685/
Abstract

PURPOSE

Mandibular flexure is a crucial phenomenon that may affect the success of rigid bilateral mandibular prosthetic treatment. The aim of this study was to determine the amount of median mandibular flexure (MMF) that occurs during mouth opening from anterior to posterior mandible in seven different regions, in different age and gender groups of both dentulous and edentulous subjects, using an intraoral digital scanner.

MATERIALS AND METHODS

In this study, the mandibular arch of 56 dentulous and 35 edentulous individuals were scanned with an intraoral scanner at both the minimum mouth opening (MnMO) and the maximum mouth opening (MxMO). MMF values were calculated by subtracting the distance value at the MxMO from the distance between the reference points at the MnMO at seven different mandibular regions of dentulous and edentulous subjects. In addition, the left and right side MMF values were measured. All data were analyzed statistically (α = .05).

RESULTS

MMF value increased linearly from anterior to posterior mandible in both dentulous and edentulous individuals. The differences in MMF values were not statistically significant according to side (left/right), age, or gender ( > .05). No significant differences were found between the mean MMF values of the same region in both dentulous and edentulous individuals ( > .05).

CONCLUSION

MMF was seen in different regions of the mandibles of both edentulous and dentulous individuals measured at the MxMO. Mandibular flexure should be considered for the success and prognosis of the long-span and rigid prostheses.

摘要

目的

下颌弯曲是一种关键现象，可能会影响双侧下颌刚性修复治疗的成功率。本研究的目的是使用口腔内数字扫描仪，确定在不同年龄和性别的有牙颌和无牙颌受试者的七个不同区域中，从下颌前部到后部开口时发生的下颌正中弯曲（MMF）量。

材料与方法

在本研究中，使用口腔内扫描仪在最小开口度（MnMO）和最大开口度（MxMO）时对56名有牙颌个体和35名无牙颌个体的下颌弓进行扫描。通过从有牙颌和无牙颌受试者下颌七个不同区域的MnMO处参考点之间的距离中减去MxMO处的距离值来计算MMF值。此外，测量左右两侧的MMF值。所有数据进行统计学分析（α = 0.05）。

结果

在有牙颌和无牙颌个体中，MMF值从下颌前部到后部呈线性增加。根据侧别（左/右）、年龄或性别，MMF值的差异无统计学意义（P>0.05）。有牙颌和无牙颌个体相同区域的平均MMF值之间未发现显著差异（P>0.05）。

结论

在MxMO测量时，有牙颌和无牙颌个体的下颌不同区域均出现MMF。对于长跨度刚性修复体的成功和预后，应考虑下颌弯曲。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7398/8891685/d73d89e322f8/jap-14-32-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7398/8891685/4333bfd95f1d/jap-14-32-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7398/8891685/62e31b8cbdf4/jap-14-32-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7398/8891685/c272fae0a5d9/jap-14-32-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7398/8891685/a1ca86d60c30/jap-14-32-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7398/8891685/d73d89e322f8/jap-14-32-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7398/8891685/4333bfd95f1d/jap-14-32-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7398/8891685/62e31b8cbdf4/jap-14-32-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7398/8891685/c272fae0a5d9/jap-14-32-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7398/8891685/a1ca86d60c30/jap-14-32-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7398/8891685/d73d89e322f8/jap-14-32-g005.jpg

相似文献

1
Evaluation of median mandibular flexure values in dentulous and edentulous subjects by using an intraoral digital scanner.使用口腔内数字扫描仪评估有牙颌和无牙颌受试者的下颌正中弯曲值。
J Adv Prosthodont. 2022 Feb;14(1):32-44. doi: 10.4047/jap.2022.14.1.32. Epub 2022 Feb 25.
2
Fractal Dimension and Lacunarity Analysis in the Dentulous and Edentulous Mandibular Posterior Region Using Cone-beam Computed Tomography: A Cross-sectional Retrospective Study.应用锥形束 CT 对有牙和无牙下颌后区进行分形维数和空隙度分析：一项横截面回顾性研究。
J Contemp Dent Pract. 2024 Jun 1;25(6):581-587. doi: 10.5005/jp-journals-10024-3701.
3
An Analysis of Visibility and Anatomic Variations of Mandibular Canal in Digital Panoramic Radiographs of Dentulous and Edentulous Patients in Northern Iran Populations.伊朗北部人群无牙颌和有牙颌患者数字化全景X线片中下颌管的可视性及解剖变异分析
J Dent (Shiraz). 2016 Jun;17(2):112-20.
4
Reliability of a digital image method for measuring medial mandibular flexure in dentate subjects.数字化影像法测量有牙颌患者下颌体正中联合部弯曲度的可靠性研究。
J Appl Oral Sci. 2004 Dec;12(4):358-62. doi: 10.1590/s1678-77572004000400020.
5
Medial mandibular flexure and maximum occlusal force in dentate adults.有牙颌成年人的下颌内侧弯曲与最大咬合力
Int J Prosthodont. 2006 Mar-Apr;19(2):177-82.
6
Retrospective digital study of mandibular flexure in patients with long-span fixed restorations supported by natural teeth.回顾性研究自然牙支持的长跨度固定修复体患者下颌弯曲情况。
BMC Res Notes. 2023 Sep 11;16(1):203. doi: 10.1186/s13104-023-06486-w.
7
Assessment of the relationship between maximum occlusal force and median mandibular flexure in adults: A clinical trial study.成人最大咬合力与下颌正中弯曲度之间关系的评估：一项临床试验研究。
J Indian Prosthodont Soc. 2020 Jan-Mar;20(1):76-82. doi: 10.4103/jips.jips_282_19. Epub 2020 Jan 27.
8
Dentulous versus edentulous mandibles: CBCT-based morphometric assessment of mandibular canal and alveolar bone.有牙颌与无牙颌下颌骨：基于锥形束计算机断层扫描的下颌管和牙槽骨形态计量学评估
J Clin Exp Dent. 2022 Dec 1;14(12):e986-e993. doi: 10.4317/jced.59033. eCollection 2022 Dec.
9
Applying intraoral scanner to residual ridge in edentulous regions: in vitro evaluation of inter-operator validity to confirm trueness.应用口内扫描仪于无牙颌剩余牙槽嵴：评估操作者间可信度的体外研究。
BMC Oral Health. 2019 Dec 2;19(1):264. doi: 10.1186/s12903-019-0918-y.
10
A Comparative Radiographic Evaluation of Occlusal Plane in Dentulous and Edentulous Subjects: A Clinical Study.牙列完整与无牙颌患者咬合平面的影像学对比评估：一项临床研究
J Contemp Dent Pract. 2020 Jan 1;21(1):97-104.

引用本文的文献

1
Effect of the Inter-Tooth Distance and Proximal Axial Wall Height of Prepared Teeth on the Scanning Accuracy of Intraoral Scanners.预备牙齿的牙间距离和近中轴壁高度对口腔内扫描仪扫描精度的影响。
J Funct Biomater. 2024 Apr 25;15(5):115. doi: 10.3390/jfb15050115.
2
Maxillary Cast Partial Denture and Mandibular Implant-Supported Metal-Ceramic Prosthesis With a Split Framework to Compensate for Mandibular Flexure: A Case Report.采用分体式支架补偿下颌弯曲的上颌铸造局部义齿和下颌种植支持金属烤瓷修复体：病例报告
Cureus. 2023 Nov 19;15(11):e49071. doi: 10.7759/cureus.49071. eCollection 2023 Nov.
3
Comparative analysis on efficiency and accuracy of parallel confocal microscopy and three-dimensional in motion video with triangulation technology-based intraoral scanner under influence of moisture and mouth opening - A crossover clinical trial.

本文引用的文献

1
Elastic deformation of the mandibular jaw revisited-a clinical comparison between digital and conventional impressions using a reference.下颌骨的弹性变形再探讨——使用参照对数字化和传统印模的临床比较。
Clin Oral Investig. 2021 Jul;25(7):4635-4642. doi: 10.1007/s00784-021-03777-z. Epub 2021 Jan 13.
2
Assessment of the relationship between maximum occlusal force and median mandibular flexure in adults: A clinical trial study.成人最大咬合力与下颌正中弯曲度之间关系的评估：一项临床试验研究。
J Indian Prosthodont Soc. 2020 Jan-Mar;20(1):76-82. doi: 10.4103/jips.jips_282_19. Epub 2020 Jan 27.
3
Three-dimensional evaluation of mandibular deformation during mouth opening.
在潮气和张口影响下，平行共焦显微镜与基于三角测量技术的运动视频三维口内扫描仪的效率和准确性的对比分析——一项交叉临床试验。
J Indian Prosthodont Soc. 2023 Jul-Sep;23(3):234-243. doi: 10.4103/jips.jips_65_23.
4
Median mandibular flexure-the unique physiological phenomenon of the mandible and its clinical significance in implant restoration.下颌骨正中弯曲——下颌骨独特的生理现象及其在种植修复中的临床意义
Front Bioeng Biotechnol. 2023 Sep 7;11:1238181. doi: 10.3389/fbioe.2023.1238181. eCollection 2023.
5
Retrospective digital study of mandibular flexure in patients with long-span fixed restorations supported by natural teeth.回顾性研究自然牙支持的长跨度固定修复体患者下颌弯曲情况。
BMC Res Notes. 2023 Sep 11;16(1):203. doi: 10.1186/s13104-023-06486-w.
6
Biomechanical Implications of Mandibular Flexion on Implant-Supported Full-Arch Rehabilitations: A Systematic Literature Review.下颌屈曲对种植体支持的全牙弓修复的生物力学影响：一项系统的文献综述。
J Clin Med. 2023 Aug 15;12(16):5302. doi: 10.3390/jcm12165302.
7
Mandibular Flexure and Its Significance: An In Vivo Cone Beam-Computed Tomography Proof-of-Concept Study.下颌骨弯曲及其意义：一项体内锥形束计算机断层扫描概念验证研究。
J Clin Med. 2023 Jun 20;12(12):4149. doi: 10.3390/jcm12124149.
8
The effect of mandibular flexure on the design of implant-supported fixed restorations of different facial types under two loading conditions by three-dimensional finite element analysis.三维有限元分析下颌弯曲对两种加载条件下不同面型种植体支持固定修复体设计的影响
Front Bioeng Biotechnol. 2022 Aug 29;10:928656. doi: 10.3389/fbioe.2022.928656. eCollection 2022.
张口过程中下颌变形的三维评估
Int J Comput Dent. 2019;22(1):21-27.
4
A comparison of the precision of three-dimensional images acquired by 2 digital intraoral scanners: effects of tooth irregularity and scanning direction.两种数字口腔内扫描仪获取的三维图像精度比较：牙齿不规则性和扫描方向的影响
Korean J Orthod. 2016 Jan;46(1):3-12. doi: 10.4041/kjod.2016.46.1.3. Epub 2016 Jan 25.
5
Clinical importance of median mandibular flexure in oral rehabilitation: a review.下颌正中弯曲在口腔修复中的临床重要性：综述
J Oral Rehabil. 2016 Mar;43(3):215-25. doi: 10.1111/joor.12361. Epub 2015 Oct 25.
6
Biomechanics and functional distortion of the human mandible.人类下颌骨的生物力学与功能畸变
J Investig Clin Dent. 2015 Nov;6(4):241-51. doi: 10.1111/jicd.12112. Epub 2014 Jul 17.
7
Median mandibular flexure at different mouth opening and its relation to different facial types: A prospective clinical study.不同开口度下的下颌正中弯曲及其与不同面型的关系：一项前瞻性临床研究。
J Nat Sci Biol Med. 2013 Jul;4(2):426-30. doi: 10.4103/0976-9668.117028.
8
Precision of intraoral digital dental impressions with iTero and extraoral digitization with the iTero and a model scanner.口内数字化牙科印模的精度与口外数字化的 iTero 和模型扫描仪的精度。
Am J Orthod Dentofacial Orthop. 2013 Sep;144(3):471-8. doi: 10.1016/j.ajodo.2013.04.017.
9
In vitro measurements of precision of fit of implant-supported frameworks. A comparison between "virtual" and "physical" assessments of fit using two different techniques of measurements.体外测量种植体支持的修复体的精度。使用两种不同测量技术对“虚拟”和“物理”拟合评估进行比较。
Clin Implant Dent Relat Res. 2012 May;14 Suppl 1:e175-82. doi: 10.1111/j.1708-8208.2011.00416.x. Epub 2011 Dec 15.
10
Mandibular flexure and its significance on implant fixed prostheses: a review.下颌弯曲及其对种植体固定修复的意义：综述。
J Prosthodont. 2012 Apr;21(3):219-24. doi: 10.1111/j.1532-849X.2011.00798.x. Epub 2011 Nov 1.