Following the initial analysis of fundamental implant characteristics, this second instalment of the series provides a comprehensive overview of the essential scientific criteria for selecting a dental or medical implant system. Key topics include implant manufacturing processes, advanced surface modification technologies, the importance of precision components, and the significance of approvals by certification entities such as the FDA and CE. By exploring these critical elements, the session aims to equip clinicians and professionals with the knowledge necessary to make informed decisions that ensure patient safety and optimize clinical outcomes. Understanding these fundamentals is crucial before implementing any implant system in clinical practice, as it directly impacts the reliability, performance, and regulatory compliance of the devices used for patient care.