ABSTRACT Objectives Primary stability (PS) is a key factor for promoting osseointegration and long‐term success of dental implants particularly for immediate loading protocols. Beyond the current assessments of PS, an accurate pre‐operative evaluation of PS would contribute to the improvement of surgical planning and treatment outcome. This study used biomechanical testing and homogenized finite element (hFE) analysis to objectively measure PS in the laboratory, and digitally estimate PS from prior μCT reconstructions. Material and Methods Thirty‐five bone samples extracted from the jaws of two donors were examined. Twenty‐two were finally evaluated for PS. After scanning of the samples with μCT, implants were inserted by two experienced surgeons, and various metrics such as μCT‐based bone volume fraction (BV/TV), insertion torque (IT), and resonance frequency analysis (RFA) were assessed to determine PS. Mechanical tests were conducted to measure ultimate force (UFexp) as an objective indicator of PS while the hFE simulations were performed to estimate this same ultimate force (UFsim). Results Higher correlation was found between UFsim and UFexp ( R 2 = 0.85) than between BV/TV and UFexp ( R 2 = 0.61), IT and UFexp ( R 2 = 0.50), and RFA and UFexp ( R 2 = 0.38). All variables demonstrated a statistically significant linear correlation with UFexp ( p &lt; 0.01). Conclusion UFsim turns out to be a more reliable and objective indicator of PS than IT and RFA. The hFE analysis requires prior μCT reconstructions and is currently limited by numerical convergence problems. Despite these limitations, pre‐operative hFE analysis emerges as a promising tool with a higher accuracy for estimation of PS than state of care techniques.

Patrik Wili

Cedric Rauber

Amal Saade

Salomé Bliggenstorfer

Valentina Ramirez‐Garmendia

Ramon Schweizer

Ainara Irastorza‐Landa

Vivianne Chappuis

Philippe Zysset

Clinical Oral Implants Research

CLINICAL ORAL IMPLANTS RESEARCH 向临床医生、教师和研究人员传达了种植牙科及其相关领域的科学进展，他们关注应用这些信息以造福需要口腔种植的患者。该杂志面向临床医生、全科医生、牙周病医生、口腔颌面外科医生和修复医生，以及参与专业教育和种植牙科领域科学推广的教师、院士和学者。

Clinical Oral Implants Research aims to communicate scientific advancements in implant dentistry and related fields to clinicians, educators, and researchers. The application of this information is intended to benefit patients in need of oral implants. The journal's audience includes clinicians, general practitioners, periodontists, oral and maxillofacial surgeons, and prosthodontists, as well as educators, academicians, and scholars involved in professional education and the scientific promotion of implant dentistry.

《Clinical Oral Implants Research》旨在向临床医生、教师和研究人员传达种植牙科及其相关领域的科学进展。这些信息的应用旨在造福需要口腔种植的患者。该杂志的读者包括临床医生、全科医生、牙周病医生、口腔颌面外科医生和修复医生，以及参与专业教育和种植牙科领域科学推广的教师、院士和学者。

Category	Quartile
医学	1
医学, 牙科与口腔外科	1
医学, 工程生物医学	2

Primary Stability of Dental Implants in Human Jawbones: Experiments & FE Analyses

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Journal Info

Category	Quartile
ENGINEERING, BIOMEDICAL	2