IADR Abstract Archives
Effect of Loading Protocol on Peri-implant Soft Tissue Health
Objectives: -The aim of this clinical study was to evaluate the effect of type of loading using CAD/CAM polymer infiltrated ceramic (PIC) on peri-implant soft tissue health using two protocols:
1-Immediate functional loading.
2-Immediate nonfunctional loading using provisional material followed by delayed functional loading.
Methods: 30 Implants were placed in upper premolar area using surgical guide and divided randomly according to the loading protocol into 3 groups (n=10 each). In the day of the surgery, the final impression was taken. Patients in the control group (C) received CAD/CAM PMMA (out of occlusion for 3 months).After 3 months the crowns were replaced by CAD/CAM PIC crowns (functional loading).
Patients in group (A) received CAD/CAM PIC crowns (immediate functional loading).The occlusal parameters during the CAD procedure were adjusted to establish a light occlusal contact in centric occlusion. After the milling procedure, final adjustments of the crowns were performed inside the patient’s mouth.
While patients in group (B) received CAD/CAM PMMA crowns (in occlusion for 3 months) followed by CAD/CAM PIC crowns.
After cementation, Clinical photographs of the implant crowns and soft tissue were obtained at base line and follow up at 3 and 6 months. Modified pink esthetic score (MPS) were used for evaluation of peri-implant soft tissue.
Results: Statistical analysis showed that group (C) has the highest modified pink esthetic score with statistically significant difference between group (C) and the other two groups (A and B). All results were within the biological and esthetic acceptable range.
Conclusions: Within the limitation of the study, it was concluded that immediate functional loading using PIC material can be used after proper case selection.
1-Immediate functional loading.
2-Immediate nonfunctional loading using provisional material followed by delayed functional loading.
Methods: 30 Implants were placed in upper premolar area using surgical guide and divided randomly according to the loading protocol into 3 groups (n=10 each). In the day of the surgery, the final impression was taken. Patients in the control group (C) received CAD/CAM PMMA (out of occlusion for 3 months).After 3 months the crowns were replaced by CAD/CAM PIC crowns (functional loading).
Patients in group (A) received CAD/CAM PIC crowns (immediate functional loading).The occlusal parameters during the CAD procedure were adjusted to establish a light occlusal contact in centric occlusion. After the milling procedure, final adjustments of the crowns were performed inside the patient’s mouth.
While patients in group (B) received CAD/CAM PMMA crowns (in occlusion for 3 months) followed by CAD/CAM PIC crowns.
After cementation, Clinical photographs of the implant crowns and soft tissue were obtained at base line and follow up at 3 and 6 months. Modified pink esthetic score (MPS) were used for evaluation of peri-implant soft tissue.
Results: Statistical analysis showed that group (C) has the highest modified pink esthetic score with statistically significant difference between group (C) and the other two groups (A and B). All results were within the biological and esthetic acceptable range.
Conclusions: Within the limitation of the study, it was concluded that immediate functional loading using PIC material can be used after proper case selection.
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