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切牙倾斜度与唇部参数的关系：一项锥形束计算机断层扫描研究

Incisors inclination in relation to lip parameters: a CBCT study.

作者信息

Elias Majd, Kadkhodayan Sharmin, Pacheco-Pereira Camila, Vich Manuel Lagravère

机构信息

University of Alberta, School of Dentistry (Edmonton/Alberta, Canada).

出版信息

Dental Press J Orthod. 2024 Dec 16;29(6):e2424130. doi: 10.1590/2177-6709.29.6.e2424130.oar. eCollection 2024.

DOI:10.1590/2177-6709.29.6.e2424130.oar
PMID:39699987
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11655018/
Abstract

INTRODUCTION

With the introduction of Cone Beam Computed Tomography (CBCT) in dentistry, precise measurements are now attainable.

OBJECTIVE

This study seeks to explore the correlation between incisors inclination and various lip parameters utilizing CBCT technology. Moreover, it aims to assess whether specific incisors inclinations significantly influence lip thickness, length, and position.

MATERIAL AND METHODS

This was a retrospective observational study of available records of orthodontic patients (n=84) aged between 11 and 17.5 years old with pre- and post-treatment CBCT imaging. The 3D Slicer software was used to assess lip parameters and incisors inclinations while adhering to standard CBCT imaging methods. Statistical analysis was conducted to find associations between incisors inclination and lip parameters.

RESULTS

Within certain limits of incisor inclination, lip parameters showed minimal impact. Changes in upper incisor inclination within an average of 5° did not significantly correlate with upper lip parameters. Similarly, changes in lower incisor inclination within an average of 5.6° had no significant effect on lower lip parameters. However, inclination changes of tooth #21 within 5.4° significantly affected upper lip length within 0.35mm.

CONCLUSIONS

Lip parameters remained unaffected with specific ranges of incisor inclinations, except for a slight effect on upper lip length with changes in inclination of tooth #21. Clinicians can consider the specific ranges of incisors inclination during treatment planning, especially for patients concerned about lip appearance.

摘要

引言

随着锥形束计算机断层扫描（CBCT）在牙科领域的引入，现在可以进行精确测量。

目的

本研究旨在利用CBCT技术探索切牙倾斜度与各种唇部参数之间的相关性。此外，旨在评估特定的切牙倾斜度是否会显著影响唇部厚度、长度和位置。

材料与方法

这是一项对11至17.5岁正畸患者（n = 84）治疗前和治疗后CBCT影像可用记录的回顾性观察研究。使用3D Slicer软件评估唇部参数和切牙倾斜度，同时遵循标准CBCT成像方法。进行统计分析以发现切牙倾斜度与唇部参数之间的关联。

结果

在切牙倾斜度的一定范围内，唇部参数影响最小。上前牙平均倾斜度在5°以内的变化与上唇参数无显著相关性。同样，下前牙平均倾斜度在5.6°以内的变化对下唇参数无显著影响。然而，21号牙倾斜度在5.4°以内的变化对上唇长度有显著影响，变化幅度为0.35mm。

结论

除21号牙倾斜度变化对上唇长度有轻微影响外，唇部参数在特定切牙倾斜度范围内不受影响。临床医生在治疗计划过程中可以考虑切牙倾斜度的特定范围，特别是对于关注唇部外观的患者。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2108/11655018/3e74cbe19ca4/2177-6709-dpjo-29-06-e2424130-gf2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2108/11655018/0b90d8ec7707/2177-6709-dpjo-29-06-e2424130-gf1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2108/11655018/3e74cbe19ca4/2177-6709-dpjo-29-06-e2424130-gf2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2108/11655018/0b90d8ec7707/2177-6709-dpjo-29-06-e2424130-gf1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2108/11655018/3e74cbe19ca4/2177-6709-dpjo-29-06-e2424130-gf2.jpg

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