[KAP-2] Comparison of BPS Analog & Digital Denture Systems for Establishment of Yonsei Digital Denture Protocol
[Abstract]
[Introduction]
In contemporary society, active research and clinical application of digital complete dentures are being conducted in the field of removable prosthetics using digital technology, and the results are close to the level of analog complete dentures. Therefore, from this case, two sets of complete dentures (maxillary complete denture & mandibular implant-retained overdenture) were fabricated digitally and conventionally to compare the differences in clinical and laboratory processes. Furthermore, features of each method (fitness, function, esthetics, economic aspects) will be reviewed in order to investigate the pros and cons of each approach.
[Case Summary and Treatment Details]
Compared to the conventional method, the BPS complete denture was characterized by tentative bite registration (Centric tray; Ivoclar Vivadent) in the first visit, followed by the closed mouth impression technique. Since the custom tray was designed virtually and printed, a gothic arch tracer (Gnathometer; Ivoclar Vivadent) was attached to the custom tray to enhance the accuracy of bite registration. As for the orientation of the maxillary cast, a featured transferbow alignment system (UTS CAD; Ivoclar Vivadent) was used to settle the position of the reference lines (Camper’s line, interpupillary line).
In this case, the digital complete denture was milled from the homogeneous monolithic double cross-linked PMMA block (Ivotion; Ivoclar Vivadent), and a shell geometry (ivotion ribbon) in the block is implemented that reproduces the boundary between teeth and gingiva, creating a natural cervical line.
Moreover, setting the denture teeth virtually has a lot of advantages: convenient, accurate, faster, and reproducible compared to the manual which has been highly technique-sensitive.
[Progress and Discussion]
Digital complete denture allows for faster and more accurate fabrication through digital programming without going through the long process of the analog, allowing complete dentures to be fabricated in a short period of time.
Recently, facial scans have been performed and are reflected in digital work, making it possible to fabricate dentures that further increase the patient's esthetic satisfaction by referring to facial features during tooth arrangement and gingival formation. As a result, its function and esthetics have reached a level close to that of analog dentures.
[References]
1) Kattadiyil MT, AlHelal A. An update on computer-engineered complete dentures: A systematic review on clinical outcomes. J Prosthet Dent 2017;117
[Introduction]
In contemporary society, active research and clinical application of digital complete dentures are being conducted in the field of removable prosthetics using digital technology, and the results are close to the level of analog complete dentures. Therefore, from this case, two sets of complete dentures (maxillary complete denture & mandibular implant-retained overdenture) were fabricated digitally and conventionally to compare the differences in clinical and laboratory processes. Furthermore, features of each method (fitness, function, esthetics, economic aspects) will be reviewed in order to investigate the pros and cons of each approach.
[Case Summary and Treatment Details]
Compared to the conventional method, the BPS complete denture was characterized by tentative bite registration (Centric tray; Ivoclar Vivadent) in the first visit, followed by the closed mouth impression technique. Since the custom tray was designed virtually and printed, a gothic arch tracer (Gnathometer; Ivoclar Vivadent) was attached to the custom tray to enhance the accuracy of bite registration. As for the orientation of the maxillary cast, a featured transferbow alignment system (UTS CAD; Ivoclar Vivadent) was used to settle the position of the reference lines (Camper’s line, interpupillary line).
In this case, the digital complete denture was milled from the homogeneous monolithic double cross-linked PMMA block (Ivotion; Ivoclar Vivadent), and a shell geometry (ivotion ribbon) in the block is implemented that reproduces the boundary between teeth and gingiva, creating a natural cervical line.
Moreover, setting the denture teeth virtually has a lot of advantages: convenient, accurate, faster, and reproducible compared to the manual which has been highly technique-sensitive.
[Progress and Discussion]
Digital complete denture allows for faster and more accurate fabrication through digital programming without going through the long process of the analog, allowing complete dentures to be fabricated in a short period of time.
Recently, facial scans have been performed and are reflected in digital work, making it possible to fabricate dentures that further increase the patient's esthetic satisfaction by referring to facial features during tooth arrangement and gingival formation. As a result, its function and esthetics have reached a level close to that of analog dentures.
[References]
1) Kattadiyil MT, AlHelal A. An update on computer-engineered complete dentures: A systematic review on clinical outcomes. J Prosthet Dent 2017;117