Effect of magnetic resonance imaging protocol on decision-making for positioning of dental implants in edentulous cases.

IF 3.4 2区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE
Hian Parize, Norbert Meier, Johannes Kleinheinz, Dalva Cruz Laganá, Newton Sesma, Lauren Bohner
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Abstract

Purpose: This study aimed to assess the influence of magnetic resonance imaging (MRI) protocol on the decision-making for the positioning of dental implants in edentulous arches in comparison to planning based on cone beam computed tomography (CBCT).

Materials and methods: One phantom was scanned with CBCT and two MRI protocols (T1- and T2-weighted). Two calibrated examiners performed digital implant planning (coDiagnostiX, Dental Wings), considering a digital prosthetic planning and alveolar ridge surface scan. Four implants were planned for each patient dataset, and the angular deviation between the long axis of the implants and the prosthetic planning occlusal plane was measured.

Results: Each examiner planned 40 implants, 12 implants with CBCT and 28 implants with MRI (16 with T1 and 12 with T2 images). Significant differences in angle deviation were observed between CBCT, T1, and T2 in the anterior region for both examiners (p = 0.009 for examiner 1 and p = 0.042 for examiner 2). Implants planned with CBCT showed significantly lower angular deviation than those based on the T1 and T2 scans for both examiners (p = 0.028 and p = 0.046 for examiner 1 and p = 0.028 and p = 0.027 for examiner 2). No significant difference in angular deviation was found between T1 and T2 for both examiners (examiner 1: p = 0.600, examiner 2: p = 0.916).

Conclusion: Compared to CBCT planning, the MRI protocol influenced decision-making for anterior dental implants, with angular deviations within acceptable clinical thresholds, but further studies are needed to validate these findings.

磁共振成像方案对无牙病例种植体定位决策的影响。
目的:与基于锥形束计算机断层扫描(CBCT)的规划相比,本研究旨在评估磁共振成像(MRI)方案对无牙颌牙弓种植体定位决策的影响:用 CBCT 和两种核磁共振成像方案(T1 和 T2 加权)扫描一个模型。两名经过校准的检查员进行数字种植规划(coDiagnostiX,Dental Wings),同时考虑数字修复规划和牙槽嵴表面扫描。每个患者数据集规划了四个种植体,并测量了种植体长轴与修复规划咬合平面之间的角度偏差:结果:每位检查者规划了 40 个种植体,其中 12 个使用 CBCT,28 个使用 MRI(16 个使用 T1 图像,12 个使用 T2 图像)。在前部区域,两位检查者的 CBCT、T1 和 T2 图像的角度偏差存在显著差异(检查者 1:p = 0.009;检查者 2:p = 0.042)。对两位检查者而言,使用 CBCT 规划的种植体的角度偏差明显低于基于 T1 和 T2 扫描的种植体(对检查者 1 而言,p = 0.028 和 p = 0.046;对检查者 2 而言,p = 0.028 和 p = 0.027)。两位检查者在 T1 和 T2 之间的角度偏差没有发现明显差异(检查者 1:p = 0.600,检查者 2:p = 0.916):与 CBCT 规划相比,磁共振成像方案影响了前牙种植的决策,角度偏差在可接受的临床阈值范围内,但还需要进一步的研究来验证这些发现。
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
CiteScore
7.90
自引率
15.00%
发文量
171
审稿时长
6-12 weeks
期刊介绍: The Journal of Prosthodontics promotes the advanced study and practice of prosthodontics, implant, esthetic, and reconstructive dentistry. It is the official journal of the American College of Prosthodontists, the American Dental Association-recognized voice of the Specialty of Prosthodontics. The journal publishes evidence-based original scientific articles presenting information that is relevant and useful to prosthodontists. Additionally, it publishes reports of innovative techniques, new instructional methodologies, and instructive clinical reports with an interdisciplinary flair. The journal is particularly focused on promoting the study and use of cutting-edge technology and positioning prosthodontists as the early-adopters of new technology in the dental community.
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