IADR Abstract Archives
Immediate Loading Implant-Retained Overdenture: A Randomized Controlled Study
Objectives: Early and delayed loading protocols for implant retained mandibular complete overdenture (IOD) showed equivalent survival rates; 98% and 97% for delayed and early loading, respectively. However, there is lack of comparative studies on immediately loaded of unsplinted IOD. This study aimed to compare the quality of life, patient satisfaction, implant success rate, and peri-implant tissue response between immediate loading protocol and delay loading protocol for unsplinted IOD.
Methods: Twenty completely edentulous patients were enrolled. 10 patients received 20 implants and immediately loaded in test group and 10 patients received 20 implants and conventionally loaded in the control group. Implants were placed at the mandibular canine positions. Locator™ abutments were torqued to 20 Ncm. Attachments were picked up intra-orally and light retention inserts were placed.
Results: Implant success rate after one year follow up was 100 in both groups. Overall marginal bone level change was −0.5mm ± 0.27mm for test group and −0.6mm ± 0.44mm for control group. Attached gingiva change was −0.5mm ± 1.3mm for test group and −0.5mm ± 0.7mm for control group. Osstell® value for test group was increased by +1.38 ISQ ± 5.57 ISQ and for control group was increased by +15.25 ISQ ± 0.35 ISQ. Gingival index was higher in control group than test group with 0.5 ± 0.58. Plaque index was higher in test group than control group with 0.88 ± 0.35. No statistically significant difference between groups (p ≧ .05).
Conclusions: The preliminary results of this study indicated that immediate loading protocol for unsplinted IOD is as successful as delayed loading protocol with similar periimplant tissue responses after one year of implant loading.
Methods: Twenty completely edentulous patients were enrolled. 10 patients received 20 implants and immediately loaded in test group and 10 patients received 20 implants and conventionally loaded in the control group. Implants were placed at the mandibular canine positions. Locator™ abutments were torqued to 20 Ncm. Attachments were picked up intra-orally and light retention inserts were placed.
Results: Implant success rate after one year follow up was 100 in both groups. Overall marginal bone level change was −0.5mm ± 0.27mm for test group and −0.6mm ± 0.44mm for control group. Attached gingiva change was −0.5mm ± 1.3mm for test group and −0.5mm ± 0.7mm for control group. Osstell® value for test group was increased by +1.38 ISQ ± 5.57 ISQ and for control group was increased by +15.25 ISQ ± 0.35 ISQ. Gingival index was higher in control group than test group with 0.5 ± 0.58. Plaque index was higher in test group than control group with 0.88 ± 0.35. No statistically significant difference between groups (p ≧ .05).
Conclusions: The preliminary results of this study indicated that immediate loading protocol for unsplinted IOD is as successful as delayed loading protocol with similar periimplant tissue responses after one year of implant loading.