Digital Impressions in Dentistry: Benefits and Applications

1.1 Basic principles of digital impression taking

Digital impressions use intraoral scanners to scan the oral cavity. These devices capture high-resolution images of the teeth and gums and convert them into digital 3D models. In contrast to traditional impression methods using impression materials, this technology enables more precise, fast and convenient data capture. It is particularly advantageous in areas such as prosthetics, orthodontics and implantology.

A fundamental principle of digital impression taking is the significant time saving that this modern approach offers. In contrast to traditional methods, which require the mixing, application and curing of impression materials, the digital capture of the impression takes place in real time. The data is available directly after the scan and enables immediate further processing. This not only facilitates the rapid continuation of treatment planning, but also allows the results to be sent immediately to dental laboratories.

Digital impressions are also extremely precise. They capture even the finest details of the tooth structure and therefore enable very precise fabrication of dentures or orthodontic appliances. In addition, the digital data can be used for various medical purposes, depending on the patient's specific indication.

1.3 Accuracy and its parameters

Accuracy is a decisive factor in digital impression taking. It is made up of two main parameters:

•    Accuracy: This refers to the actual deviation of a measurement from an objective, known quantity.
•    Precision: This refers to the ability to achieve consistent results with repeated measurements.
 

1.5 Purchase criteria for intraoral scanners

The purchase of an intraoral scanner is a significant investment for any dental practice or dental laboratory. To make the right decision, the following key factors should be considered:

1. scanning fees and system compatibility:

• Long-term costs: Some manufacturers of intraoral scanners charge fees for each scan or for the use of their software. These costs should be taken into account when planning your budget.
• System integration: The compatibility of the scanner with other systems used in the practice is crucial. A scanner that works seamlessly with existing CAD/CAM systems, practice management software or digital dental laboratories can significantly increase efficiency.

2. purchase price:

• The price of an intraoral scanner varies depending on the brand, model and features offered. It is important to choose a scanner that takes into account both the practice's budget and the required functions.
• In addition to the purchase price, the costs for maintenance, software updates and possible repairs should also be taken into consideration. An inexpensive scanner can be more expensive in the long term if frequent maintenance or updates are required.

3. accuracy:

• Accuracy is one of the most important criteria when selecting an intraoral scanner. Higher accuracy usually means better treatment results and more satisfied patients.
•  It is important to evaluate the accuracy of the scanner for different types of impressions, such as single crowns, bridges or full jaw impressions. Some scanners are more accurate in certain applications than others.
• Accuracy also depends on the user-friendliness of the scanner. A device that is easy to use reduces the risk of application errors and therefore improves overall accuracy.

Overall, the decision to use an intraoral scanner should be based on careful consideration of these factors. An informed decision will ensure long-term satisfaction and increased efficiency in the dental practice.