Digital impression in dentistry: Everything you need to know

Digital impressions  in dentistry are the process of creating a highly accurate and detailed 3D virtual model of a patient’s teeth, gums, and oral structures using advanced digital technology rather than traditional physical impression materials like alginate or silicone putty. Digital impressions are used for creating precise 3D models of teeth and oral structures for services like crowns, bridges, clear aligners, and dental implants. They enhance accuracy, patient comfort, and treatment efficiency. 

The cost of digital impression systems in dentistry can vary significantly, depending on several factors. Digital impression costs can range from $10,000 to $20,000, while more advanced models with additional features may cost between $20,000 and $40,000 or more.

 Types of digital impressions

 There are several types of digital impression systems used in dentistry, each with its own technology and application. Some common types of digital impression:

•  Intraoral Scanners: Intraoral scanners are a common type of digital impression system. They are handheld devices that are inserted into the patient’s mouth to capture 3D images of the teeth and oral structures.
•  Desktop Scanners: They are used for digitizing physical impressions, such as traditional stone models, by scanning them into a 3D digital format. Desktop scanners are commonly used in dental laboratories for creating digital models from physical impressions.
•  CBCT Scanners: Cone-beam computed tomography (CBCT) scanners are used for capturing 3D images of the entire maxillofacial region, including teeth, jaws, and surrounding structures. While not strictly digital impression systems, CBCT scans are valuable for implant planning and complex restorative cases.
•  Photogrammetry: This method is less common but can be effective for specific applications. Some systems use photogrammetry techniques, where multiple photographs of the teeth are taken from different angles and then digitally reconstructed into a 3D model.
•  Intraoral Cameras: Intraoral cameras are used to capture high-quality images of the teeth and oral cavity. These images can be used for communication, documentation, and case presentation but may not provide a complete 3D model like intraoral scanners.

 Benefits of digital impressions

 Digital impressions have transformed the field of dentistry by offering increased accuracy, improved patient experience, and streamlined workflows, benefiting both dental professionals and their patients. The benefits of digital impressions  are:

•  Precision and Accuracy: Digital impressions provide highly precise 3D models of the oral cavity, reducing the risk of errors associated with traditional impressions.
•  Patient Comfort: Patients often find digital impressions more comfortable, as they eliminate the need for uncomfortable impression materials and trays.
•  Time Efficiency: They are faster to capture and can be sent electronically to dental laboratories, reducing chair time and overall treatment duration.
•  Improved Communication: Digital files can be easily shared between dentists and dental laboratories, leading to more efficient and accurate treatment planning.
•  Reduced Material Waste: It eliminates the need for physical impression materials, making them more environmentally friendly.
•  Enhanced Treatment Planning: The 3D digital models allow for precise treatment planning, especially in restorative and implant dentistry.
•  Digital Archives: They can be stored electronically for future reference and comparison, aiding in long-term patient care.
•  Fewer Remakes: The accuracy of digital impressions can result in fewer remake requests, saving time and resources.
•  Cost Savings: While there is an initial investment in equipment, digital impressions can lead to long-term cost savings by reducing material costs and improving practice efficiency.
•  Patient Education: Digital impressions can be used to educate patients about their oral health and treatment options more effectively.