Proposed parameters of optimal central incisor positioning in orthodontic treatment planning: A systematic review.

IF 2.6 3区医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Korean Journal of Orthodontics Pub Date : 2022-01-25 DOI:10.4041/kjod.2022.52.1.53

Linda Sangalli, Domenico Dalessandri, Stefano Bonetti, Gualtiero Mandelli, Luca Visconti, Fabio Savoldi

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引用次数: 4

Abstract

Objective: Planning of incisal position is crucial for optimal orthodontic treatment outcomes due to its consequences on facial esthetics and occlusion. A systematic summary of the proposed parameters is presented.

Methods: Studies on Google Scholar^©, PubMed^©, and Cochrane Library, providing quantitative information on optimal central incisor position were included.

Results: Upper incisors supero-inferior position (4-5 mm to upper lip, 67-73 mm to axial plane through pupils), antero-posterior position (3-4 mm to Nasion-A, 3-6 mm to A-Pogonion, 9-12 mm to true vertical line, 5 mm to A-projection, 9-10 mm to coronal plane through pupils), bucco-lingual angulation (4-7° to occlusal plane perpendicular on models, 20-22° to Nasion-A, 57-58° to upper occlusal plane, 16-20° to coronal plane through pupils, 108-110° to anterior-posterior nasal spine), mesio-distal angulation (5° to occlusal plane perpendicular on models). Lower incisors supero-inferior position (41-48 mm to soft-tissue mandibular plane), antero-posterior position (3-4 mm to Nasion-B, 1-3 mm to A-Pogonion, 12-15 mm to true vertical line, 6-8 mm to coronal plane through pupils), bucco-lingual angulation (1-4° to occlusal plane perpendicular on models, 87-94° to mandibular plane, 68° to Frankfurt plane, 22-25° to Nasion-B, 105° to occlusal plane, 64° to lower occlusal plane, 21° to A-Pogonion), mesio-distal angulation (2° to occlusal plane perpendicular on models).

Conclusions: Although these findings can provide clinical guideline, they derive from heterogeneous studies in terms of subject characteristics and reference methods. Therefore, the optimal incisal position remains debatable.

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正畸治疗计划中中切牙最佳定位参数的系统综述。

目的：由于切口位置的规划会影响面部美观和咬合，因此对最佳正畸治疗效果至关重要。对所提出的参数进行了系统总结。方法：包括对Google Scholar©、PubMed©和Cochrane Library的研究，这些研究提供了关于最佳中切牙位置的定量信息。结果：上切牙上下位置（距上唇4-5 mm，距瞳孔轴平面67-73 mm），前后位置（距Nasion-A 3-4 mm，距A-Pogonion 3-6 mm，距真垂线9-12 mm，距A-投影5 mm，距瞳冠平面9-10 mm），颊舌成角（在模型上与垂直的咬合平面成4-7°，与Nasion-A成20-22°，与上咬合平面成57-58°，通过瞳孔与冠状平面成16-20°，与前后鼻脊成108-110°），近中远端成角（与模型上垂直的咬合面成5°）。下切牙上下位置（至软组织下颌平面41-48 mm）、前后位置（至Nasion-B 3-4 mm，至A-Pogonion 1-3 mm，至真垂线12-15 mm，至瞳孔冠状平面6-8 mm），颊舌成角（与垂直于模型的咬合平面成1-4°，与下颌平面成87-94°，与法兰克福平面成68°，与Nasion-B成22-25°，与咬合平面成105°，与下咬合平面成64°，与A-前牙合面成21°），近中-远中成角，它们来源于异质性研究的学科特征和参考方法。因此，最佳的切入位置仍然存在争议。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Korean Journal of Orthodontics DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

3.50

自引率

10.50%

发文量

审稿时长

>12 weeks

期刊介绍： The Korean Journal of Orthodontics (KJO) is an international, open access, peer reviewed journal published in January, March, May, July, September, and November each year. It was first launched in 1970 and, as the official scientific publication of Korean Association of Orthodontists, KJO aims to publish high quality clinical and scientific original research papers in all areas related to orthodontics and dentofacial orthopedics. Specifically, its interest focuses on evidence-based investigations of contemporary diagnostic procedures and treatment techniques, expanding to significant clinical reports of diverse treatment approaches. The scope of KJO covers all areas of orthodontics and dentofacial orthopedics including successful diagnostic procedures and treatment planning, growth and development of the face and its clinical implications, appliance designs, biomechanics, TMJ disorders and adult treatment. Specifically, its latest interest focuses on skeletal anchorage devices, orthodontic appliance and biomaterials, 3 dimensional imaging techniques utilized for dentofacial diagnosis and treatment planning, and orthognathic surgery to correct skeletal disharmony in association of orthodontic treatment.