用于连接转移体的技术和材料会影响种植体支持修复体的准确性和最终贴合度——体外研究

The Technique and Material Used to Join Transfers Affect the Accuracy and Final Fit of Implant-Supported Prostheses-In Vitro Study.

作者信息

Mariotto Guilherme de Aguiar, Detogni Anna Caroliny, Persh Monica Cavalheiro, Sinhoreti Mário Alexandre Coelho, Camilotti Veridiana, Mendonça Márcio José

机构信息

Department of Restorative Dentistry, State Western University of Parana (UNIOESTE), Dental School, Cascavel, PR, Brazil.

Department of Restorative Dentistry, Dental Materials Division, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, SP, Brazil.

出版信息

Eur J Dent. 2024 Oct;18(4):1040-1047. doi: 10.1055/s-0044-1779422. Epub 2024 May 28.

DOI:10.1055/s-0044-1779422

PMID:38806161

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11479725/

Abstract

OBJECTIVES

This study evaluated the linear dimensional change of polymerization of three materials and two techniques of the union of molding transfers for implant-supported prostheses used in the open-tray technique.

MATERIALS AND METHODS

A nylon maxilla-shaped matrix was made, two osseous integrated implants were installed, and, over these two, straight conical mini-pillars were installed. Open-tray impression transfers were attached to the mini-pillars, and a silicone guide was made to standardize the connections between the transfers. The samples were divided into six groups ( = 20): PA (Pattern Resin LS, chemically activated acrylic resin in the single step technique); DU (Durallay, chemically activated acrylic resin in the single step technique); BI (Protemp4, bisacrylic resin in the single step technique); PAC (Pattern Resin LS in sectioning and joining of segments technique); DUC (Durallay, in sectioning and joining of segments technique); and BIC (Protemp4, in sectioning and joining of segments technique). The linear dimensional change values that occurred among these transfers were measured in a profile projector (VB300; Starret) coupled to the Quadra Check device, with a resolution of 0.001 mm, performed by a single calibrated operator.

STATISTICAL ANALYSIS

Data were submitted to a two-way analysis of variance and Tukey's test ( < 0.01).

RESULTS

Statistically significant mean values were found in all comparisons. The PA showed the lowest mean values (µm) of linear dimensional change, both in the single-step technique and in the sectioning and joining technique, in the following order: BI 255.73 (3.81), DU 173.75 (2.30), PA 95.97 (3.20), BIC 23.82 (1.71), DUC 20.85 (2.53), and PAC 13.27 (2.09). The single-step technique showed the worst results, regardless of the material.

CONCLUSION

The sectioning and joining technique reduced the dimensional change in all materials, and the Pattern Resin LS showed the lowest shrinkage mean values, followed by Durallay and Protemp4.

摘要

目的

本研究评估了三种材料在用于开放式托盘技术的种植体支持修复体成型转移结合中的线性尺寸变化以及两种技术。

材料与方法

制作一个尼龙上颌骨形状的基质，植入两个骨整合种植体，并在这两个种植体上安装直锥形微型支柱。将开放式托盘印模转移件连接到微型支柱上，并制作一个硅树脂导板来规范转移件之间的连接。样本分为六组（每组 = 20）：PA（Pattern Resin LS，单步技术中的化学活化丙烯酸树脂）；DU（Durallay，单步技术中的化学活化丙烯酸树脂）；BI（Protemp4，单步技术中的双丙烯酸树脂）；PAC（Pattern Resin LS，片段切割与拼接技术）；DUC（Durallay，片段切割与拼接技术）；BIC（Protemp4，片段切割与拼接技术）。这些转移件之间发生的线性尺寸变化值由一名经过校准的操作员使用与Quadra Check设备相连的轮廓投影仪（VB300；Starret）进行测量，分辨率为0.001毫米。

统计分析

数据进行双向方差分析和Tukey检验（α < 0.01）。

结果

在所有比较中均发现具有统计学意义的均值。PA在单步技术和片段切割与拼接技术中均显示出最低的线性尺寸变化均值（微米），顺序如下：BI 255.73（3.81），DU 173.75（2.30），PA 95.97（3.20），BIC 23.82（1.71），DUC 20.85（2.53），PAC 13.27（2.09）。无论使用何种材料，单步技术的结果最差。