What is a Definitive Prosthesis?
A definitive prosthesis is a permanent dental restoration designed for long-term use. These prostheses are precisely manufactured using modern dental technologies and can be used safely for many years. Definitive prostheses include fixed prostheses (crowns and bridges), removable prostheses (partial and complete dentures), and implant-supported prostheses. They effectively solve the aesthetic and functional problems caused by tooth loss, improving the patient’s quality of life.
Definitive prostheses are essential components of dental treatments that meet both aesthetic and functional needs. With regular maintenance and professional check-ups, these prostheses maintain their durability and usability over time.
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When is a Definitive Prosthesis Used?
The most common reason for using a definitive prosthesis is tooth loss. Whether it is the loss of a single tooth or complete tooth loss, definitive prostheses are used to address various degrees of tooth loss. Additionally, aesthetic issues related to the color, shape, or position of teeth can also require the use of these prostheses. Porcelain and zirconium prostheses are often preferred for patients seeking a natural appearance.
Definitive prostheses are also effective in restoring chewing and speaking functions, which can be impaired due to tooth loss. Fixed prostheses may be applied to strengthen and protect teeth that are excessively worn or structurally weakened by decay. Moreover, complete dentures or implant-supported prostheses can restore oral functions and aesthetic appearance for patients who have lost all of their teeth. These prostheses are designed to meet both aesthetic and functional needs with a personalized approach.
Types of Definitive Prostheses
Definitive prostheses can be applied in various forms such as fixed, removable, or implant-supported prostheses, depending on the patient's needs, oral structure, and aesthetic expectations. The types of definitive prostheses include:
Fixed Prostheses (Crowns and Bridges): These are used to restore damaged, decayed, or worn teeth by attaching to the remaining tooth or tooth root. They are not removable.
Removable Prostheses (Complete and Partial): These are detachable prostheses used to replace missing teeth. Complete dentures are used when all teeth are missing, while partial dentures are used when there are still healthy teeth remaining.
Implant-Supported Prostheses: These are prostheses fixed on implants placed in the jawbone. They can be either fixed or removable and provide the most natural solution resembling real teeth.
Zirconium or Porcelain Prostheses: These prostheses are frequently used for aesthetic purposes. They are made from materials that closely mimic the appearance of natural teeth and offer durability for long-term use.
Transition from Temporary to Definitive Prostheses: After using temporary prostheses during treatment, definitive prostheses are applied to fully adapt to the patient's oral structure, ensuring optimal function and aesthetic outcomes.
Application Process of Definitive Prostheses
The process of applying definitive prostheses involves detailed planning and multiple stages. It starts with a thorough examination of the patient’s teeth and jaw structure, including X-rays and digital scans when necessary, to determine the condition of the teeth and the requirements for the prosthesis.
Following the planning phase, measurements of the patient's teeth and jaw are taken. These measurements serve as the foundation for the design and production of the prosthesis in the laboratory. Modern technologies, especially CAD/CAM systems, ensure that the prostheses are prepared with high precision.
After the prosthesis is created, it is tested for fit and adjusted based on the patient’s jaw movements and how the teeth align. Finally, the prosthesis is secured, and the patient is given care instructions for proper use and maintenance.
Difference Between Definitive Prostheses and Other Prostheses
While temporary prostheses are short-term solutions used during the treatment process, definitive prostheses are designed for long-term use, offering permanent solutions.
In terms of aesthetics, definitive prostheses provide the closest match to natural teeth. Using materials like porcelain and zirconium, they deliver a realistic appearance with color matching and light transmission, just like natural teeth. Moreover, definitive prostheses are tailored to the individual’s measurements, ensuring a comfortable and functional fit.
In terms of durability, definitive prostheses are made from higher-quality materials, ensuring resistance to the pressures of chewing and speaking over time. Unlike temporary prostheses, which may suffer from breakage or wear, definitive prostheses rarely encounter such issues. With these qualities, definitive prostheses provide superior aesthetic and functional performance.
