PMC7719493_01
Panoramic X-rays: (a) preoperative, (b) immediately postoperative, and (c) 1 year postoperative; (d) peri-implant healing after 3 months; (e) tissue condition after removal of the healing caps; (f) installation of prosthetic attachment and adaptation of peri-implant tissues around the Equator attachment.
CRID2020-8823547.002.jpg
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fig2
Figure 2 shows the radiographic exams performed prior to surgery and those made in the immediate postoperative period and after 1 year (Figures 2(a)-2(c)). Figures 2(d)-2(f) illustrate the adaptation of peri-implant tissues around the healing caps immediately after replacement by Equatorattachments after 3 months of osseointegration.  Figure 3 shows the capture sequence of each O-ring with cylinder for the loading phaseseparately.
(a-c) Capture sequence for the O-rings with cylinders; (d) central Equator attachment capture; (e) left Equator attachment; (f) right Equator attachment capture.
CRID2020-8823547.003.jpg
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fig3
Figure 2 shows the radiographic exams performed prior to surgery and those made in the immediate postoperative period and after 1 year (Figures 2(a)-2(c)). Figures 2(d)-2(f) illustrate the adaptation of peri-implant tissues around the healing caps immediately after replacement by Equatorattachments after 3 months of osseointegration.  Figure 3 shows the capture sequence of each O-ring with cylinder for the loading phaseseparately.
PMC7719493_02
(a) Preoperative panoramic X-rays; (b) panoramic X-rays with installation of implants 2 and 4 (components installed) and implants 1 and 3 (healing caps); (c) final condition after loading all implants; (d) surgical timeline.
CRID2020-8823547.004.jpg
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fig4
Neither the first 2 implants (implants 2 and 4) nor the last 2 (implants 1 and 3) reached a minimum torque of 32 N, and all implants were thus loaded conventionally after 3 months of osseointegration.  Figure 4(a) shows the preoperative radiographic exams; the radiographic condition with installation of implants 2 and 4 with the components installed and implants 1 and 3 with healing caps is shown in Figure 4(b).  Figure 4(c) illustrates the final condition after loading all implants.  Figure 4(d) shows the surgical timeline.  Figure 5 summarizes the clinical occlusal loading sequence: Figures 5(a) and 5(b) show the capture of Equator attachments 2 and 4 three months after surgery, and Figures 5(c) and 5(d) show the capture of Equator attachemnts 1 and 3 three months after surgery 2.
Clinical occlusal loading sequence: (a) occlusal view of Equator attachments connected to implants 2 and 4 and healing caps connected to implants 1 and 3; (b) base of the prosthesis after capturing the O-rings of implants 2 and 4; (c) occlusal view after installation of the Equator attachments connected to implants 1 and 3; (d) prosthesis base after capturing.
CRID2020-8823547.005.jpg
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fig5
Neither the first 2 implants (implants 2 and 4) nor the last 2 (implants 1 and 3) reached a minimum torque of 32 N, and all implants were thus loaded conventionally after 3 months of osseointegration.  Figure 4(a) shows the preoperative radiographic exams; the radiographic condition with installation of implants 2 and 4 with the components installed and implants 1 and 3 with healing caps is shown in Figure 4(b).  Figure 4(c) illustrates the final condition after loading all implants.  Figure 4(d) shows the surgical timeline.  Figure 5 summarizes the clinical occlusal loading sequence: Figures 5(a) and 5(b) show the capture of Equator attachments 2 and 4 three months after surgery, and Figures 5(c) and 5(d) show the capture of Equator attachemnts 1 and 3 three months after surgery 2.
PMC7719493_03
: (a) Panoramic X-rays: (a1) preoperative and (a2) immediate postoperative; (b) hybrid occlusal loading: (b1) occlusal view of the O-rings with cylinders in position for capture; (b2) view of the prosthesis base after capturing the O-rings with cylinders of implants 2 and 4; (b3) occlusal view of the attachments prior to capturing implants 1 and 3; (b4) view of the prosthesis base after final capturing.
CRID2020-8823547.006.jpg
PMC7719493_03_CRID2020-8823547.006.jpg
fig6
At the time of surgery, 4 Equatorattachments were installed but only two were immediately loaded.  Figure 6(a) shows the preoperative radiographic exams (Figure 6(a1)) and those made in the immediate postoperative period (Figure 6(a2)).  Figure 6(b) illustrates the adopted occlusal loading scheme: immediate loading for implants 2 and 4 (Figures 6(b1) and 6(b2)) and conventional loading for implants 1 and 3 (Figures 6(b3) and 6(b4)).