[EP-28] A novel implant placement technique using a three-dimensionally-printed duplicate denture for implant-stabilized overdentures.
[Abstract]
[Objective] In this study, we describe a novel implant placement technique, wherein we used a three-dimensionally printed (3Dp) duplicate denture as a template for computed tomography (CT) imaging and a surgical guide plate for implant-stabilized overdentures (IOD) treatment.
[Method] A 63-year-old patient presented at the hospital with a chief complaint of being unable to use his existing dentures due to mandibular crest resorption. To improve denture stability, a prosthetic treatment using an IOD was proposed. The duplicate denture as CT template was fabricated following procedure. First, the morphology of the mandibular denture was recorded using an indirect scanner and digitally designed using CAD, then duplicate denture was fabricated by three-dimensionally printer1. After CT imaging, implant placement planning was performed, and a guide hole was created in the area corresponding to the 3Dp duplicate denture at the designated implantation site to serve as a surgical guide plate. In surgical operation, after confirming the position of the implant sockets with a guide plate, two implants were individually placed. After 3 months, a locator abutment was attached to the implant body, along with an attachment to the inner surface of the resin complete denture to create an IOD. Masticatory performance was evaluated using a gummy jelly dissolution test conducted preoperatively and postoperatively during implant treatment. Informed consent was obtained from the patient to present this case.
[Results and Discussion] The placed implants were able to be positioned as planned. By the values of glucose dissolution test, before treatment-111 and after treatment-252, indicating improved masticatory function. Traditionally, duplicate denture had fabricated using copy flask, although this method is a complex process requiring morphological modifications and polishing. In contrast, the method that records the denture form with a scanner and creates it with a 3D printer machining requires digital equipment, offers a shorter time, and a simpler process. The technique using 3Dp duplicate denture as CT template and surgical guide showcased cost-effectiveness, making it a promising option for IOD treatment planning. [References]
1) Yang Y, Yang Z, Lin WS, et al. Digital Duplication and 3D Printing for Implant Overdenture Fabrication. J Prosthodont. 2021; 30
[Objective] In this study, we describe a novel implant placement technique, wherein we used a three-dimensionally printed (3Dp) duplicate denture as a template for computed tomography (CT) imaging and a surgical guide plate for implant-stabilized overdentures (IOD) treatment.
[Method] A 63-year-old patient presented at the hospital with a chief complaint of being unable to use his existing dentures due to mandibular crest resorption. To improve denture stability, a prosthetic treatment using an IOD was proposed. The duplicate denture as CT template was fabricated following procedure. First, the morphology of the mandibular denture was recorded using an indirect scanner and digitally designed using CAD, then duplicate denture was fabricated by three-dimensionally printer1. After CT imaging, implant placement planning was performed, and a guide hole was created in the area corresponding to the 3Dp duplicate denture at the designated implantation site to serve as a surgical guide plate. In surgical operation, after confirming the position of the implant sockets with a guide plate, two implants were individually placed. After 3 months, a locator abutment was attached to the implant body, along with an attachment to the inner surface of the resin complete denture to create an IOD. Masticatory performance was evaluated using a gummy jelly dissolution test conducted preoperatively and postoperatively during implant treatment. Informed consent was obtained from the patient to present this case.
[Results and Discussion] The placed implants were able to be positioned as planned. By the values of glucose dissolution test, before treatment-111 and after treatment-252, indicating improved masticatory function. Traditionally, duplicate denture had fabricated using copy flask, although this method is a complex process requiring morphological modifications and polishing. In contrast, the method that records the denture form with a scanner and creates it with a 3D printer machining requires digital equipment, offers a shorter time, and a simpler process. The technique using 3Dp duplicate denture as CT template and surgical guide showcased cost-effectiveness, making it a promising option for IOD treatment planning. [References]
1) Yang Y, Yang Z, Lin WS, et al. Digital Duplication and 3D Printing for Implant Overdenture Fabrication. J Prosthodont. 2021; 30