Influence of material and tightening torque on the subsidence of implant scan bodies.

IF 3.2 2区医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE

Journal of prosthodontic research Pub Date : 2025-04-01 DOI:10.2186/jpr.JPR_D_24_00224

Daiki Morita, Tatsuya Matsuzaki, Nobuo Sakai, Yoichiro Ogino, Ikiru Atsuta, Yasunori Ayukawa

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引用次数: 0

Abstract

Purpose: To compare abutment and scan body subsidence and determine the appropriate tightening torque value for a scan body that can accurately replicate abutment subsidence.

Methods: An internally tapered connection implant was placed in a bone model. The titanium abutment (Ti Abut), polyetheretherketone scan body (PEEK SB), and titanium scan body (Ti SB) were tightened to torque values of 10 or 35 Ncm, with the 10 Ncm models used as reference models. Both the 10 and 35 Ncm models were scanned using a laboratory scanner. The vertical displacements of the Ti Abut, PEEK SB, and Ti SB at each torque value were determined using three-dimensional analysis software.

Results: Upon tightening the scan bodies and abutment to 35 Ncm, the displacement was significantly greater than when tightened to 10 Ncm (P < 0.01). At 35 Ncm, Ti SB and Ti Abut showed significantly greater displacements than PEEK SB, whereas no significant difference was observed between Ti SB and Ti Abut.

Conclusions: The titanium scan bodies, when tightened at 35 Ncm, accurately replicated titanium abutment subsidence, unlike the PEEK scan bodies.

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材料和拧紧力矩对植入体扫描体沉降的影响。

目的：比较台体和扫描体的沉降情况，确定能准确模拟台体沉降的扫描体的合适拧紧力矩值。方法：在骨模型中置入内锥形连接种植体。将钛基台（Ti Abut）、聚醚醚酮扫描体（PEEK SB）和钛扫描体（Ti SB）拧紧至扭矩值为10或35 Ncm，以10 Ncm模型为参考模型。使用实验室扫描仪对10和35 Ncm模型进行扫描。利用三维分析软件测定了Ti Abut、PEEK SB和Ti SB在各扭矩值下的垂直位移。结果：扫描体与基台拧紧至35 Ncm时，位移明显大于拧紧至10 Ncm时（P < 0.01）。在35 Ncm时，Ti SB和Ti Abut的位移明显大于PEEK SB，而Ti SB和Ti Abut之间没有显著差异。结论：与PEEK扫描体不同，当钛扫描体在35 Ncm处收紧时，可以准确地复制钛基台下沉。

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

Journal of prosthodontic research DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

6.90

自引率

11.10%

发文量

161

期刊介绍： Journal of Prosthodontic Research is published 4 times annually, in January, April, July, and October, under supervision by the Editorial Board of Japan Prosthodontic Society, which selects all materials submitted for publication. Journal of Prosthodontic Research originated as an official journal of Japan Prosthodontic Society. It has recently developed a long-range plan to become the most prestigious Asian journal of dental research regarding all aspects of oral and occlusal rehabilitation, fixed/removable prosthodontics, oral implantology and applied oral biology and physiology. The Journal will cover all diagnostic and clinical management aspects necessary to reestablish subjective and objective harmonious oral aesthetics and function. The most-targeted topics: 1) Clinical Epidemiology and Prosthodontics 2) Fixed/Removable Prosthodontics 3) Oral Implantology 4) Prosthodontics-Related Biosciences (Regenerative Medicine, Bone Biology, Mechanobiology, Microbiology/Immunology) 5) Oral Physiology and Biomechanics (Masticating and Swallowing Function, Parafunction, e.g., bruxism) 6) Orofacial Pain and Temporomandibular Disorders (TMDs) 7) Adhesive Dentistry / Dental Materials / Aesthetic Dentistry 8) Maxillofacial Prosthodontics and Dysphagia Rehabilitation 9) Digital Dentistry Prosthodontic treatment may become necessary as a result of developmental or acquired disturbances in the orofacial region, of orofacial trauma, or of a variety of dental and oral diseases and orofacial pain conditions. Reviews, Original articles, technical procedure and case reports can be submitted. Letters to the Editor commenting on papers or any aspect of Journal of Prosthodontic Research are welcomed.