Duration: 1 hour, 4 minutes, 59 seconds
Author: Dr. Saj Jivraj, Dr. Hooman Zarrinkelk
Title: The All on 4 Concept Diagnosis to Delivery Part 4: Prosthetic Principles and Techniques for Fabrication of the Final Prosthesis Complications and Maintenance Introduction: Heading 1: The Significance of Provisional Restoration in the All on 4 Concept Heading 2: The Importance of Wearing Provisional Restoration Heading 3: Duration of Provisional Restoration Heading 1: The Fabrication Process of the Final Prosthesis Heading 2: Impression Process Heading 3: Jaw Relation Records Heading 4: Try-Ins Heading 5: CAD Cam Framework Design Heading 6: Final Train and Delivery Heading 1: Preliminary Impressions for Implant Trajectory Assessment Heading 2: Evaluating Implant Position for Abutment Changes Heading 1: Ensuring Adequate Space for a Strong Restoration Heading 2: Avoiding Weak Points in the Restoration Heading 1: The Importance of Accuracy in Mastercast Heading 2: Achieving An Accurate Framework Now we can start writing the article based on the outline provided. —————————————————— The All on 4 Concept Diagnosis to Delivery Part 4: Prosthetic Principles and Techniques for Fabrication of the Final Prosthesis Complications and Maintenance Introduction: In the field of restorative dentistry, the All on 4 concept has gained widespread popularity as an effective solution for replacing missing teeth. As we delve into the fourth part of our series, we will explore the crucial prosthetic principles and techniques involved in fabricating the final prosthesis, while also discussing potential complications and maintenance. This article aims to provide a comprehensive understanding of the process to ensure successful patient outcomes. Heading 1: The Significance of Provisional Restoration in the All on 4 Concept Heading 2: The Importance of Wearing Provisional Restoration During the All on 4 treatment process, the provisional restoration plays a crucial role. It is recommended for the patient to wear the provisional restoration for at least six months before fabricating the final prosthesis. This temporary solution serves multiple purposes. Firstly, it enables the patient to adapt to the new prosthesis and evaluate its fit, function, and aesthetics. Secondly, it allows for any necessary adjustments or modifications before the fabrication of the permanent prosthesis. Heading 3: Duration of Provisional Restoration The duration of wearing the provisional restoration for six months ensures that the patient’s oral structures adapt properly to the new prosthesis. This timeframe also allows for the evaluation of any potential complications or issues that may arise during the provisional stage, thus preventing the recurrence of such problems in the final prosthesis. Heading 1: The Fabrication Process of the Final Prosthesis Heading 2: Impression Process Once the provisional restoration has served its purpose and the patient is ready for the final prosthesis, the fabrication process begins. It starts with taking accurate impressions of the patient’s oral structures. These impressions capture the exact dimensions and positions of the implants and surrounding tissues. Thorough preliminary impressions ensure precise implant trajectory assessment and aid in determining whether any abutment changes are necessary. Heading 3: Jaw Relation Records Alongside the impression process, jaw relation records are taken to establish the appropriate occlusal relationship between the upper and lower jaws. These records ensure that the final prosthesis allows for proper chewing and biting function. Precise jaw relation records are crucial for achieving optimal outcomes and patient satisfaction. Heading 4: Try-Ins To ensure the perfect fit and aesthetics of the final prosthesis, try-ins are performed. During this stage, the prosthesis is fabricated in a temporary material to evaluate the patient’s comfort, function, and overall esthetics. Any necessary adjustments are made before proceeding with the fabrication of the permanent prosthesis. Heading 5: CAD Cam Framework Design The advancement of technology has revolutionized the process of fabricating the final prosthesis. CAD cam framework design provides highly accurate and detailed frameworks. This computer-aided technology allows for customization and precision, resulting in superior prosthesis fit and aesthetics. Heading 6: Final Train and Delivery With the CAD cam framework design complete, the final prosthesis is fabricated and ready for delivery. The final train session involves verifying the fit, function, and aesthetics of the prosthesis. This step is crucial to ensure patient satisfaction and ideal outcomes. Once satisfied, the prosthesis is delivered to the patient, completing the All on 4 treatment journey. Heading 1: Preliminary Impressions for Implant Trajectory Assessment During the impression process, preliminary impressions are taken to accurately assess the implant trajectory. This step helps determine the ideal position and angulation of the implants, ensuring optimal support and stability in the final restoration. Furthermore, preliminary impressions aid in identifying if any changes to the abutments are necessary to achieve the desired aesthetics and function. Heading 2: Evaluating Implant Position for Abutment Changes The preliminary impressions play a significant role in evaluating the implant positions and determining if any abutment changes are required. This assessment is crucial for achieving the desired relationship between the implant and the final prosthesis. By making the necessary adjustments at this stage, the final prosthesis can be fabricated with precision and accuracy. Heading 1: Ensuring Adequate Space for a Strong Restoration In the fabrication process of the final prosthesis, sufficient space between the framework and the tooth is crucial. This consideration aims to avoid weak points in the restoration. Adequate space allows for proper support and distribution of forces, enhancing the durability and longevity of the prosthesis. Dentists must pay close attention to this aspect to ensure successful outcomes. Heading 2: Avoiding Weak Points in the Restoration By carefully planning and designing the final prosthesis, dentists can avoid weak points that may compromise the integrity of the restoration. Weak points can lead to functional issues and potential complications. Therefore, maintaining a balance between aesthetics and structural strength is necessary to ensure a robust and long-lasting restoration. Heading 1: The Importance of Accuracy in Mastercast Heading 2: Achieving An Accurate Framework To fabricate an accurate framework for the final prosthesis, the mastercast is of utmost importance. The mastercast provides an exact replica of the patient’s oral structures, including the implants and surrounding tissues. By ensuring accuracy in the mastercast, dental professionals can achieve precise framework design, resulting in a superb fit of the final prosthesis. Conclusion: The fabrication of the final prosthesis in the All on 4 concept involves a meticulous process that requires precision and attention to detail. From wearing the provisional restoration to the final delivery of the permanent prosthesis, each step plays a crucial role in ensuring optimal outcomes. By following the prosthetic principles and techniques discussed in this article, dental professionals can provide their patients with functional, aesthetically pleasing, and long-lasting restorations. FAQs: 1. How long should a patient wear the provisional restoration in the All on 4 concept? 2. What is the purpose of the provisional restoration? 3. What is the role of preliminary impressions in shaping the final prosthesis? 4. How does CAD cam framework design contribute to the fabrication process of the final prosthesis? 5. Why is an accurate mastercast essential for achieving an accurate framework?