全牙弓数字化种植扫描中口内摄影测量法的准确性：一项体内前瞻性对比研究。

Accuracy of intraoral photogrammetry in complete arch digital implant scanning: An in vivo prospective comparative study.

作者信息

Eldabe Abdelrahman K, Adel-Khattab Doaa, Botros Kirollos H

机构信息

Lecturer, Oral Medicine, Periodontology and Diagnosis, Faculty of Dentistry, Assiut University, Assiut, Egypt.

Associate Professor, Oral Medicine, Periodontology and Diagnosis, Faculty of Dentistry, Ain Shams University, Cairo, Egypt.

出版信息

J Prosthet Dent. 2025 Apr 18. doi: 10.1016/j.prosdent.2025.03.041.

DOI:10.1016/j.prosdent.2025.03.041

PMID:40253232

Abstract

STATEMENT OF PROBLEM

Intraoral scanning of complete arch implant-supported prosthesis is still not predictable in all scenarios. Photogrammetry was introduced to overcome physical and anatomic limitations. The use of a new intraoral scanner combined with photogrammetry technology in a simplified workflow may improve the ease of fabrication and accuracy of complete arch implant-supported prostheses.

PURPOSE

The purpose of this clinical study was to evaluate the degree of trueness of a conventional intraoral scanner (IOS) and an intraoral photogrammetry scanner (IPS) for complete arch implant-supported prostheses.

MATERIAL AND METHODS

Participants who had received 4 implants in an edentulous arch for an implant-supported complete arch fixed dental prosthesis were recruited. Three recordings were obtained for each participant: IOS, IPS (tests), and a conventional splinted open-tray impression (reference). Three-dimensional (ΔEUC), and angular deviations (ΔANGLE) for both groups (IOS and IPS) were evaluated and compared with the reference scan. Potential effects (correlation) of the impression device (IOS and SPG) and type of arch (maxilla and mandible) were evaluated. A paired t test was used to evaluate both the angular and 3-dimensional deviation for each implant position. A point-biserial correlation was conducted to assess the relationship between jaw type and angular and ΔEUC deviations in the 2 groups.

RESULTS

Thirteen edentulous arches (9 maxillae, 4 mandibles) in 11 individuals were rehabilitated with a monolithic zirconia screw-retained prosthesis supported by 4 implants, totaling 52 implants. Conventional intraoral scanners (IOS) and intraoral photogrammetry scanners (IPS) were used to scan 104 implant positions, which were then compared with the corresponding reference scans. (mean ΔEUC IOS 59.8 µm, IPS 30.7 µm; mean ΔANGLE IOS 1.4 degrees, IPS 0.78 degrees). A paired t test revealed statistical significance in favor of IPS in terms of both Euclidian and angular deviation (P<.001). In the IOS group, angular deviation had a positive statistically significant correlation with the type of arch (rpb=0.34, n=52, P=.013).

CONCLUSIONS

The IPS significantly improved the ease and accuracy of recording complete arch implant-supported prostheses.

摘要

问题陈述

在所有情况下，全口种植支持式修复体的口内扫描仍无法达到预期效果。引入摄影测量法以克服物理和解剖学限制。在简化的工作流程中使用新型口内扫描仪结合摄影测量技术，可能会提高全口种植支持式修复体的制作便利性和准确性。

目的

本临床研究的目的是评估传统口内扫描仪（IOS）和口内摄影测量扫描仪（IPS）用于全口种植支持式修复体的真实度。

材料与方法

招募在无牙颌弓中植入4颗种植体以支持种植支持式全口固定义齿的参与者。为每位参与者获取三次记录：IOS、IPS（测试）和传统的夹板式开放托盘印模（参考）。评估两组（IOS和IPS）的三维（ΔEUC）和角度偏差（ΔANGLE），并与参考扫描进行比较。评估印模设备（IOS和SPG）和牙弓类型（上颌和下颌）的潜在影响（相关性）。使用配对t检验评估每个种植体位置的角度和三维偏差。进行点二列相关分析以评估颌骨类型与两组角度和ΔEUC偏差之间的关系。

结果

11名个体的13个无牙颌弓（9个上颌，4个下颌）用由4颗种植体支持的整体式氧化锆螺丝固位修复体进行修复，共52颗种植体。使用传统口内扫描仪（IOS）和口内摄影测量扫描仪（IPS）扫描104个种植体位置，然后与相应的参考扫描进行比较。（平均ΔEUC IOS为59.8 µm，IPS为30.7 µm；平均ΔANGLE IOS为1.4度，IPS为0.78度）。配对t检验显示，在欧几里得偏差和角度偏差方面，IPS均具有统计学意义（P<.001）。在IOS组中，角度偏差与牙弓类型具有正的统计学显著相关性（rpb=0.34，n=52，P=.013）。