In the current sudy Flashforge finder of FDM technology was used to fabricate the pateient specific medical model and surgical template for preplanning as shown in the Figure 6 below.
For the current study investment casting process was followed to fabricate the patient specific surgical template with SS316 medical grade metal surgical template.
The final SS316 patient specific surgical template is shown in the Figure 7c and 7d, which can be used in surgery.
The final required metal surgical template is obtained through traditional investment casting, which is also easily available.
A new method for integrating CBCT/laser scan image superimposition, CAD system, and 3DP techniques was developed in this study and applied to fabricate an accurate customized surgical template for orthodontic miniscrews.
Caption: Figure 4: (a) and (b) The customized surgical template was 1.8 mm thick layer average offset based on the teeth/mucosa/bracket contour profiles and ranged from half canine to second molar.
Caption: Figure 5: (a) The assembly solid models of stone cast of dental arch and left site surgical template; (b) the surgical template (left site) was fabricated using a 3DP printer with 0.254 mm slicing additive manufacturing and wore on the stone cast.
On the day of surgery, after local anesthesia was administered, the correct seating of the surgical template was checked in mouth and, asking the patient to bite the previously obtained silicon index, it was stabilized in its correct intermaxillary relationship through three anchor pins: a 1.2 mm diameter drill was passed through the three vestibular pin holes of the surgical template under irrigation with refrigerated physiological solution using the implant motor at 1000 rpm and the anchor pins inserted.
Caption: Figure 5: (a) Occlusal view of the teeth-supported maxillary-guided surgical template; (b) maxillary model with analogues inserted in correspondence of planned implant position; (c) maxillary metal-reinforced acrylic provisional prosthesis.
Caption: Figure 6: (a) In-mouth try-in of the maxillary teeth-supported surgical template; (b) positioning of the superior dental implants with the aid of the surgical guide; (c) five dental implants positioned in the maxilla before teeth extraction; (d) clinical aspect after teeth extraction.
Diagnostic casts, preimplant prosthodontics, treatment prostheses, and surgical templates
. In: Misch CE, ed.
CBCT uses isotropic voxels and, as a result, measurements are precise and considered 1 : 1; therefore study models and 3D printing or milling surgical templates
can be fabricated with great accuracy .