Study: NCT01909999

Intervention type: PROCEDURE
Group type: EXPERIMENTAL
Intervention: Osteogenic markers Evaluation
Description: The collection of peri-implant crevicular fluid (PICF) was performed immediately after implant insertion (Baseline) and after 7, 15, 30, 60, 90 and 120 days. The site to be collected was dried and isolated with sterile gauze. PICF was collected at four sites per implant using absorbent paper strips (Periopaper, Oralflow, Smithtown, New York). The volume of fluid was measured immediately with the aid of Periotron (Oraflow, Smithtown, New York) and conditioned at 400uL of PBS buffer + 0.05% Tween and then frozen at -80°C.~The levels of the peri-implant osteogenic markers (OPG, OCN, OPN, TGF-α, and PTH) were determined using the LUMINEX/Magpix system (HBN1A-51K and HCCBP1MAG-58K, Millipore Corporation, Billerica, MA, USA).

Intervention type: PROCEDURE
Group type: ACTIVE_COMPARATOR
Intervention: Osteogenic markers Evaluation
Description: The collection of peri-implant crevicular fluid (PICF) was performed immediately after implant insertion (Baseline) and after 7, 15, 30, 60, 90 and 120 days. The site to be collected was dried and isolated with sterile gauze. PICF was collected at four sites per implant using absorbent paper strips (Periopaper, Oralflow, Smithtown, New York). The volume of fluid was measured immediately with the aid of Periotron (Oraflow, Smithtown, New York) and conditioned at 400uL of PBS buffer + 0.05% Tween and then frozen at -80°C.~The levels of the peri-implant osteogenic markers (OPG, OCN, OPN, TGF-α, and PTH) were determined using the LUMINEX/Magpix system (HBN1A-51K and HCCBP1MAG-58K, Millipore Corporation, Billerica, MA, USA).

Intervention type: PROCEDURE
Group type: EXPERIMENTAL
Intervention: Clinical parameters evaluation
Description: The following parameters were assessed:~1. Peri-implant sulcus depth (PISD): distance from the margin of the peri-implant mucosa to the bottom of the peri-implant sulcus;~2. Modified Bleeding on Probing Index: the presence or absence of bleeding after 10 seconds on probing around implants.

Intervention type: PROCEDURE
Group type: ACTIVE_COMPARATOR
Intervention: Clinical parameters evaluation
Description: The following parameters were assessed:~1. Peri-implant sulcus depth (PISD): distance from the margin of the peri-implant mucosa to the bottom of the peri-implant sulcus;~2. Modified Bleeding on Probing Index: the presence or absence of bleeding after 10 seconds on probing around implants.

Intervention type: PROCEDURE
Group type: EXPERIMENTAL
Intervention: Implant instalation
Description: The surgeries, as well as all postoperative follow-up, were performed at the dental clinic of UNIP-SP. Surgical areas were anesthetized (2% mepivacaine with 1:100,000 epinephrine) and mucoperiosteal incisions in the alveolar ridge mucosa were made. The surgical sequence follow the protocol described by the implant company supplier of implants (SIN - São Paulo, SP, BR). In all cases, for maxilla rehabilitation, 6 implants were installed, while, for mandible, 5 were used.

Intervention type: PROCEDURE
Group type: ACTIVE_COMPARATOR
Intervention: Implant instalation
Description: The surgeries, as well as all postoperative follow-up, were performed at the dental clinic of UNIP-SP. Surgical areas were anesthetized (2% mepivacaine with 1:100,000 epinephrine) and mucoperiosteal incisions in the alveolar ridge mucosa were made. The surgical sequence follow the protocol described by the implant company supplier of implants (SIN - São Paulo, SP, BR). In all cases, for maxilla rehabilitation, 6 implants were installed, while, for mandible, 5 were used.

Intervention type: PROCEDURE
Group type: EXPERIMENTAL
Intervention: Prosthesis installation
Description: The patients in the IM Group received Brånemark protocol prosthesis within 3 days after the implant. The implants were first molded and the models sent for prosthesis confection (LABDENTAL, São Paulo, SP, Brazil). All prosthesis used straight mini-abutments (SIN, São Paulo, SP), that ranged from 1mm to 4mm in height, whose were tightened with 20N of torque, followed by occlusal adjustment and clinical monitoring

Intervention type: PROCEDURE
Group type: EXPERIMENTAL
Intervention: Suture
Description: Soft tissues sutures were done using absorbable polygalactin 910 suture.