Trial Outcomes & Findings for The Role of Immediate Provisional Restorations on Bone Level Implants (NCT NCT00906165)

NCT ID: NCT00906165

Last Updated: 2019-03-15

Results Overview

The primary parameter derives from the subtraction of mesial and distal bone level linear x-ray measurements at baseline and one year after implant placement. The distance between the alveolar bone at the level of the first radiographic bone contact with the implant surface and the shoulder of the implant will be measured to the closest 0.1mm at the mesial and distal surfaces of all implants, on digitized standardized peri-apical x-rays using an image analysis computer program.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

28 participants

Primary outcome timeframe

between baseline and one year post treatment

Results posted on

2019-03-15

Participant Flow

Participant milestones

Participant milestones
Measure
1- Immediately Provisionalized
The Straumann® Bone Level SLActive Implant (4.1mm diameter) will be immediately provisionalized upon placement, i.e. impressions will be taken directly after implant installation in order to fabricate screw-retained resin crowns within 48 hours after implant placement. At 16 weeks, the final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration. Straumann® Bone Level SLActive Implant (4.1mm diameter): Straumann® Bone Level Implants will be placed in healed alveolar ridge (at least 8 weeks post extraction). Implants in Arm 1 will be immediately provisionalized. Implants in Arm 2 will not be immediately provisionalized. Implants in both Arms will be loaded at 16 weeks (final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration)
2- Delayed Loading
The Straumann® Bone Level SLActive Implant (4.1mm diameter) will not be immediately provisionalized, instead there will be delayed implant loading. i.e. the patient will receive a removable prosthesis if necessary and the impressions for the final restoration will be taken 12-14 weeks after implant installation. At 16 weeks, the final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration. Straumann® Bone Level SLActive Implant (4.1mm diameter): Straumann® Bone Level Implants will be placed in healed alveolar ridge (at least 8 weeks post extraction). Implants in Arm 1 will be immediately provisionalized. Implants in Arm 2 will not be immediately provisionalized. Implants in both Arms will be loaded at 16 weeks (final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration)
Overall Study
STARTED
14
14
Overall Study
COMPLETED
10
14
Overall Study
NOT COMPLETED
4
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Race and Ethnicity were not collected from any participant.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
1- Immediately Provisionalized
n=14 Participants
The Straumann® Bone Level SLActive Implant (4.1mm diameter) will be immediately provisionalized upon placement, i.e. impressions will be taken directly after implant installation in order to fabricate screw-retained resin crowns within 48 hours after implant placement. At 16 weeks, the final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration. Straumann® Bone Level SLActive Implant (4.1mm diameter): Straumann® Bone Level Implants will be placed in healed alveolar ridge (at least 8 weeks post extraction). Implants in Arm 1 will be immediately provisionalized. Implants in Arm 2 will not be immediately provisionalized. Implants in both Arms will be loaded at 16 weeks (final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration)
2- Delayed Loading
n=14 Participants
The Straumann® Bone Level SLActive Implant (4.1mm diameter) will not be immediately provisionalized, instead there will be delayed implant loading. i.e. the patient will receive a removable prosthesis if necessary and the impressions for the final restoration will be taken 12-14 weeks after implant installation. At 16 weeks, the final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration. Straumann® Bone Level SLActive Implant (4.1mm diameter): Straumann® Bone Level Implants will be placed in healed alveolar ridge (at least 8 weeks post extraction). Implants in Arm 1 will be immediately provisionalized. Implants in Arm 2 will not be immediately provisionalized. Implants in both Arms will be loaded at 16 weeks (final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration)
Total
n=28 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=14 Participants
0 Participants
n=14 Participants
0 Participants
n=28 Participants
Age, Categorical
Between 18 and 65 years
13 Participants
n=14 Participants
14 Participants
n=14 Participants
27 Participants
n=28 Participants
Age, Categorical
>=65 years
1 Participants
n=14 Participants
0 Participants
n=14 Participants
1 Participants
n=28 Participants
Age, Continuous
42.1 years
n=14 Participants
47.9 years
n=14 Participants
45.3 years
n=28 Participants
Sex: Female, Male
Female
9 Participants
n=14 Participants
9 Participants
n=14 Participants
18 Participants
n=28 Participants
Sex: Female, Male
Male
5 Participants
n=14 Participants
5 Participants
n=14 Participants
10 Participants
n=28 Participants
Race and Ethnicity Not Collected
0 Participants
Race and Ethnicity were not collected from any participant.
Region of Enrollment
United Kingdom
14 Participants
n=14 Participants
14 Participants
n=14 Participants
28 Participants
n=28 Participants

PRIMARY outcome

Timeframe: between baseline and one year post treatment

The primary parameter derives from the subtraction of mesial and distal bone level linear x-ray measurements at baseline and one year after implant placement. The distance between the alveolar bone at the level of the first radiographic bone contact with the implant surface and the shoulder of the implant will be measured to the closest 0.1mm at the mesial and distal surfaces of all implants, on digitized standardized peri-apical x-rays using an image analysis computer program.

Outcome measures

Outcome measures
Measure
1- Immediately Provisionalized
n=10 Participants
The Straumann® Bone Level SLActive Implant (4.1mm diameter) will be immediately provisionalized upon placement, i.e. impressions will be taken directly after implant installation in order to fabricate screw-retained resin crowns within 48 hours after implant placement. At 16 weeks, the final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration. Straumann® Bone Level SLActive Implant (4.1mm diameter): Straumann® Bone Level Implants will be placed in healed alveolar ridge (at least 8 weeks post extraction). Implants in Arm 1 will be immediately provisionalized. Implants in Arm 2 will not be immediately provisionalized. Implants in both Arms will be loaded at 16 weeks (final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration)
2- Delayed Loading
n=14 Participants
The Straumann® Bone Level SLActive Implant (4.1mm diameter) will not be immediately provisionalized, instead there will be delayed implant loading. i.e. the patient will receive a removable prosthesis if necessary and the impressions for the final restoration will be taken 12-14 weeks after implant installation. At 16 weeks, the final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration. Straumann® Bone Level SLActive Implant (4.1mm diameter): Straumann® Bone Level Implants will be placed in healed alveolar ridge (at least 8 weeks post extraction). Implants in Arm 1 will be immediately provisionalized. Implants in Arm 2 will not be immediately provisionalized. Implants in both Arms will be loaded at 16 weeks (final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration)
Radiographic Bone Level Change at the Mesial and Distal of the Implants Between Baseline and One Year Post Treatment
0.73 mm
Standard Deviation 0.83
0.22 mm
Standard Deviation 0.46

SECONDARY outcome

Timeframe: 1 year and 2 years after implant placement

Population: Survival rate of the implants at 12 months

The survival rate of the implants is presented as a cumulative survival rate at 1 year and 2 years post-implant placement.

Outcome measures

Outcome measures
Measure
1- Immediately Provisionalized
n=14 Participants
The Straumann® Bone Level SLActive Implant (4.1mm diameter) will be immediately provisionalized upon placement, i.e. impressions will be taken directly after implant installation in order to fabricate screw-retained resin crowns within 48 hours after implant placement. At 16 weeks, the final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration. Straumann® Bone Level SLActive Implant (4.1mm diameter): Straumann® Bone Level Implants will be placed in healed alveolar ridge (at least 8 weeks post extraction). Implants in Arm 1 will be immediately provisionalized. Implants in Arm 2 will not be immediately provisionalized. Implants in both Arms will be loaded at 16 weeks (final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration)
2- Delayed Loading
n=14 Participants
The Straumann® Bone Level SLActive Implant (4.1mm diameter) will not be immediately provisionalized, instead there will be delayed implant loading. i.e. the patient will receive a removable prosthesis if necessary and the impressions for the final restoration will be taken 12-14 weeks after implant installation. At 16 weeks, the final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration. Straumann® Bone Level SLActive Implant (4.1mm diameter): Straumann® Bone Level Implants will be placed in healed alveolar ridge (at least 8 weeks post extraction). Implants in Arm 1 will be immediately provisionalized. Implants in Arm 2 will not be immediately provisionalized. Implants in both Arms will be loaded at 16 weeks (final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration)
Number of Participants With Survival Rate of the Implants at 12 and 24 Months
No. of participants w. implant survival of 12mts
14 Participants
14 Participants
Number of Participants With Survival Rate of the Implants at 12 and 24 Months
No. of participants w. implant survival of 24mts
14 Participants
14 Participants

SECONDARY outcome

Timeframe: 2 years after implant placement

No of participants with prosthetic related complications and with implant failures are described after 24 months

Outcome measures

Outcome measures
Measure
1- Immediately Provisionalized
n=14 Participants
The Straumann® Bone Level SLActive Implant (4.1mm diameter) will be immediately provisionalized upon placement, i.e. impressions will be taken directly after implant installation in order to fabricate screw-retained resin crowns within 48 hours after implant placement. At 16 weeks, the final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration. Straumann® Bone Level SLActive Implant (4.1mm diameter): Straumann® Bone Level Implants will be placed in healed alveolar ridge (at least 8 weeks post extraction). Implants in Arm 1 will be immediately provisionalized. Implants in Arm 2 will not be immediately provisionalized. Implants in both Arms will be loaded at 16 weeks (final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration)
2- Delayed Loading
n=14 Participants
The Straumann® Bone Level SLActive Implant (4.1mm diameter) will not be immediately provisionalized, instead there will be delayed implant loading. i.e. the patient will receive a removable prosthesis if necessary and the impressions for the final restoration will be taken 12-14 weeks after implant installation. At 16 weeks, the final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration. Straumann® Bone Level SLActive Implant (4.1mm diameter): Straumann® Bone Level Implants will be placed in healed alveolar ridge (at least 8 weeks post extraction). Implants in Arm 1 will be immediately provisionalized. Implants in Arm 2 will not be immediately provisionalized. Implants in both Arms will be loaded at 16 weeks (final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration)
No. of Participants With Complications of the Implant and Implant Overstructure at 24 Months
Number of prosthetic related complications
1 participants
1 participants
No. of Participants With Complications of the Implant and Implant Overstructure at 24 Months
Number of implant failures
0 participants
0 participants

SECONDARY outcome

Timeframe: Recorded at 16 weeks, 6, 12, and 24 months after implant placement

Population: Difference of Probing Pocket Depth (PPD) between 16 weeks (loading) and 6 months, 12 months and 24 months

The Probing Pocket Depth around the implants will be measured using a UNC-15 probe with light probing force (0.2N) at the post-implant time-points specified. Differences between the Outcome Measure time points will be displayed. Baseline is 16 weeks (loading of implants)

Outcome measures

Outcome measures
Measure
1- Immediately Provisionalized
n=10 Participants
The Straumann® Bone Level SLActive Implant (4.1mm diameter) will be immediately provisionalized upon placement, i.e. impressions will be taken directly after implant installation in order to fabricate screw-retained resin crowns within 48 hours after implant placement. At 16 weeks, the final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration. Straumann® Bone Level SLActive Implant (4.1mm diameter): Straumann® Bone Level Implants will be placed in healed alveolar ridge (at least 8 weeks post extraction). Implants in Arm 1 will be immediately provisionalized. Implants in Arm 2 will not be immediately provisionalized. Implants in both Arms will be loaded at 16 weeks (final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration)
2- Delayed Loading
n=14 Participants
The Straumann® Bone Level SLActive Implant (4.1mm diameter) will not be immediately provisionalized, instead there will be delayed implant loading. i.e. the patient will receive a removable prosthesis if necessary and the impressions for the final restoration will be taken 12-14 weeks after implant installation. At 16 weeks, the final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration. Straumann® Bone Level SLActive Implant (4.1mm diameter): Straumann® Bone Level Implants will be placed in healed alveolar ridge (at least 8 weeks post extraction). Implants in Arm 1 will be immediately provisionalized. Implants in Arm 2 will not be immediately provisionalized. Implants in both Arms will be loaded at 16 weeks (final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration)
Probing Pocket Depth
PPD difference 16weeks-6months
-0.3 mm
Standard Deviation 0.5
-0.5 mm
Standard Deviation 0.7
Probing Pocket Depth
PPD difference 16weeks-12 months
-0.4 mm
Standard Deviation 0.8
-0.7 mm
Standard Deviation 0.9
Probing Pocket Depth
PPD difference 16weeks-24 months
-0.1 mm
Standard Deviation 0.7
-0.8 mm
Standard Deviation 1.0

SECONDARY outcome

Timeframe: Recorded at 16 weeks, 6, 12 and 24 months after implant placement

Population: Patient 218 discontinued the study after 12 months

The gingival recessions around the implants are recorded at the above-specified timepoints after implant placement, using a UNC-15 probe. Differences between the Outcome Measure time points will be displayed. Baseline is 16 weeks (loading of implants)

Outcome measures

Outcome measures
Measure
1- Immediately Provisionalized
n=10 Participants
The Straumann® Bone Level SLActive Implant (4.1mm diameter) will be immediately provisionalized upon placement, i.e. impressions will be taken directly after implant installation in order to fabricate screw-retained resin crowns within 48 hours after implant placement. At 16 weeks, the final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration. Straumann® Bone Level SLActive Implant (4.1mm diameter): Straumann® Bone Level Implants will be placed in healed alveolar ridge (at least 8 weeks post extraction). Implants in Arm 1 will be immediately provisionalized. Implants in Arm 2 will not be immediately provisionalized. Implants in both Arms will be loaded at 16 weeks (final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration)
2- Delayed Loading
n=14 Participants
The Straumann® Bone Level SLActive Implant (4.1mm diameter) will not be immediately provisionalized, instead there will be delayed implant loading. i.e. the patient will receive a removable prosthesis if necessary and the impressions for the final restoration will be taken 12-14 weeks after implant installation. At 16 weeks, the final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration. Straumann® Bone Level SLActive Implant (4.1mm diameter): Straumann® Bone Level Implants will be placed in healed alveolar ridge (at least 8 weeks post extraction). Implants in Arm 1 will be immediately provisionalized. Implants in Arm 2 will not be immediately provisionalized. Implants in both Arms will be loaded at 16 weeks (final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration)
Gingival Recessions (REC)
REC difference 16weeks-6months
0.1 mm
Standard Deviation 0.2
0.4 mm
Standard Deviation 0.3
Gingival Recessions (REC)
REC difference 16weeks-12months
0.2 mm
Standard Deviation 0.3
0.5 mm
Standard Deviation 0.4
Gingival Recessions (REC)
Recession at 24 months
0.2 mm
Standard Deviation 0.4
0.5 mm
Standard Deviation 0.3

SECONDARY outcome

Timeframe: Recorded at 12 and 24 months after implant placement

Population: Patient 218 discontinued the study after 12 months

Soft tissue changes: mesial and distal gingival papilla dimensions assessed by Papilla Fill Index (PFI, Jemt 1997) and the Pink Aesthetic Score (PES, Furhauser 2005) will be recorded at the post-implant placement timepoints specified above.

Outcome measures

Outcome measures
Measure
1- Immediately Provisionalized
n=10 Participants
The Straumann® Bone Level SLActive Implant (4.1mm diameter) will be immediately provisionalized upon placement, i.e. impressions will be taken directly after implant installation in order to fabricate screw-retained resin crowns within 48 hours after implant placement. At 16 weeks, the final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration. Straumann® Bone Level SLActive Implant (4.1mm diameter): Straumann® Bone Level Implants will be placed in healed alveolar ridge (at least 8 weeks post extraction). Implants in Arm 1 will be immediately provisionalized. Implants in Arm 2 will not be immediately provisionalized. Implants in both Arms will be loaded at 16 weeks (final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration)
2- Delayed Loading
n=14 Participants
The Straumann® Bone Level SLActive Implant (4.1mm diameter) will not be immediately provisionalized, instead there will be delayed implant loading. i.e. the patient will receive a removable prosthesis if necessary and the impressions for the final restoration will be taken 12-14 weeks after implant installation. At 16 weeks, the final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration. Straumann® Bone Level SLActive Implant (4.1mm diameter): Straumann® Bone Level Implants will be placed in healed alveolar ridge (at least 8 weeks post extraction). Implants in Arm 1 will be immediately provisionalized. Implants in Arm 2 will not be immediately provisionalized. Implants in both Arms will be loaded at 16 weeks (final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration)
Number of Participants With Soft Tissue Changes Assessed by Papilla Fill Index
PFI 12m: 1=incomplete Papilla 1/3 of full
2 Participants
2 Participants
Number of Participants With Soft Tissue Changes Assessed by Papilla Fill Index
PFI 12m: 0=absent papilla
0 Participants
0 Participants
Number of Participants With Soft Tissue Changes Assessed by Papilla Fill Index
PFI 12m: 2=incomplete papilla 2/3 of full
6 Participants
6 Participants
Number of Participants With Soft Tissue Changes Assessed by Papilla Fill Index
PFI 12m: 3=complete papilla
2 Participants
6 Participants
Number of Participants With Soft Tissue Changes Assessed by Papilla Fill Index
PFI 24m: 0=absent papilla
0 Participants
0 Participants
Number of Participants With Soft Tissue Changes Assessed by Papilla Fill Index
PFI 24m: 1=incomplete Papilla 1/3 of full
1 Participants
0 Participants
Number of Participants With Soft Tissue Changes Assessed by Papilla Fill Index
PFI 24m: 2=incomplete papille 2/3 of full
5 Participants
7 Participants
Number of Participants With Soft Tissue Changes Assessed by Papilla Fill Index
PFI 24m: 3=complete papilla
4 Participants
6 Participants

SECONDARY outcome

Timeframe: From randomization to 2 years after implant placement

Population: Patient 218 discontinued the study after 12 months

Adverse Events (AE) and Serious Adverse Events (SAE) will be assessed and followed up throughout the study duration

Outcome measures

Outcome measures
Measure
1- Immediately Provisionalized
n=14 Participants
The Straumann® Bone Level SLActive Implant (4.1mm diameter) will be immediately provisionalized upon placement, i.e. impressions will be taken directly after implant installation in order to fabricate screw-retained resin crowns within 48 hours after implant placement. At 16 weeks, the final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration. Straumann® Bone Level SLActive Implant (4.1mm diameter): Straumann® Bone Level Implants will be placed in healed alveolar ridge (at least 8 weeks post extraction). Implants in Arm 1 will be immediately provisionalized. Implants in Arm 2 will not be immediately provisionalized. Implants in both Arms will be loaded at 16 weeks (final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration)
2- Delayed Loading
n=14 Participants
The Straumann® Bone Level SLActive Implant (4.1mm diameter) will not be immediately provisionalized, instead there will be delayed implant loading. i.e. the patient will receive a removable prosthesis if necessary and the impressions for the final restoration will be taken 12-14 weeks after implant installation. At 16 weeks, the final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration. Straumann® Bone Level SLActive Implant (4.1mm diameter): Straumann® Bone Level Implants will be placed in healed alveolar ridge (at least 8 weeks post extraction). Implants in Arm 1 will be immediately provisionalized. Implants in Arm 2 will not be immediately provisionalized. Implants in both Arms will be loaded at 16 weeks (final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration)
Adverse Events
AE at 12 months
15 events
22 events
Adverse Events
AE 12 - 24 months
7 events
6 events

SECONDARY outcome

Timeframe: Recorded at 12 and 24 months after implant placement

Population: Patient 218 discontinued the study after 12 months

Soft tissue changes: the Pink Aesthetic Score (PES, Furhauser 2005) will be recorded at the post-implant placement timepoints specified above. The PES index includes assessment of seven variables and each variable is measured with a 2, 1, or 0 score with 2 being the best and 0 being the poorest score. Based on its definition the PES is a cumulative score with 14 being the best and 0 the worst.

Outcome measures

Outcome measures
Measure
1- Immediately Provisionalized
n=14 Participants
The Straumann® Bone Level SLActive Implant (4.1mm diameter) will be immediately provisionalized upon placement, i.e. impressions will be taken directly after implant installation in order to fabricate screw-retained resin crowns within 48 hours after implant placement. At 16 weeks, the final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration. Straumann® Bone Level SLActive Implant (4.1mm diameter): Straumann® Bone Level Implants will be placed in healed alveolar ridge (at least 8 weeks post extraction). Implants in Arm 1 will be immediately provisionalized. Implants in Arm 2 will not be immediately provisionalized. Implants in both Arms will be loaded at 16 weeks (final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration)
2- Delayed Loading
n=14 Participants
The Straumann® Bone Level SLActive Implant (4.1mm diameter) will not be immediately provisionalized, instead there will be delayed implant loading. i.e. the patient will receive a removable prosthesis if necessary and the impressions for the final restoration will be taken 12-14 weeks after implant installation. At 16 weeks, the final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration. Straumann® Bone Level SLActive Implant (4.1mm diameter): Straumann® Bone Level Implants will be placed in healed alveolar ridge (at least 8 weeks post extraction). Implants in Arm 1 will be immediately provisionalized. Implants in Arm 2 will not be immediately provisionalized. Implants in both Arms will be loaded at 16 weeks (final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration)
Soft Tissue Changes, Pink Aesthetic Score
PES at 12 months
11.4 score on a scale
Standard Deviation 1.2
11.6 score on a scale
Standard Deviation 1.0
Soft Tissue Changes, Pink Aesthetic Score
PES at 24 months
11.6 score on a scale
Standard Deviation 1.3
11.6 score on a scale
Standard Deviation 0.7

Adverse Events

1- Immediately Provisionalized

Serious events: 0 serious events
Other events: 9 other events
Deaths: 0 deaths

2- Delayed Loading

Serious events: 2 serious events
Other events: 12 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
1- Immediately Provisionalized
n=14 participants at risk
The Straumann® Bone Level SLActive Implant (4.1mm diameter) will be immediately provisionalized upon placement, i.e. impressions will be taken directly after implant installation in order to fabricate screw-retained resin crowns within 48 hours after implant placement. At 16 weeks, the final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration. Straumann® Bone Level SLActive Implant (4.1mm diameter): Straumann® Bone Level Implants will be placed in healed alveolar ridge (at least 8 weeks post extraction). Implants in Arm 1 will be immediately provisionalized. Implants in Arm 2 will not be immediately provisionalized. Implants in both Arms will be loaded at 16 weeks (final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration)
2- Delayed Loading
n=14 participants at risk
The Straumann® Bone Level SLActive Implant (4.1mm diameter) will not be immediately provisionalized, instead there will be delayed implant loading. i.e. the patient will receive a removable prosthesis if necessary and the impressions for the final restoration will be taken 12-14 weeks after implant installation. At 16 weeks, the final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration. Straumann® Bone Level SLActive Implant (4.1mm diameter): Straumann® Bone Level Implants will be placed in healed alveolar ridge (at least 8 weeks post extraction). Implants in Arm 1 will be immediately provisionalized. Implants in Arm 2 will not be immediately provisionalized. Implants in both Arms will be loaded at 16 weeks (final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration)
Cardiac disorders
Atrial flutter
0.00%
0/14
7.1%
1/14
Cardiac disorders
Cardiac ablation
0.00%
0/14
7.1%
1/14
Respiratory, thoracic and mediastinal disorders
Lung infection
0.00%
0/14
7.1%
1/14

Other adverse events

Other adverse events
Measure
1- Immediately Provisionalized
n=14 participants at risk
The Straumann® Bone Level SLActive Implant (4.1mm diameter) will be immediately provisionalized upon placement, i.e. impressions will be taken directly after implant installation in order to fabricate screw-retained resin crowns within 48 hours after implant placement. At 16 weeks, the final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration. Straumann® Bone Level SLActive Implant (4.1mm diameter): Straumann® Bone Level Implants will be placed in healed alveolar ridge (at least 8 weeks post extraction). Implants in Arm 1 will be immediately provisionalized. Implants in Arm 2 will not be immediately provisionalized. Implants in both Arms will be loaded at 16 weeks (final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration)
2- Delayed Loading
n=14 participants at risk
The Straumann® Bone Level SLActive Implant (4.1mm diameter) will not be immediately provisionalized, instead there will be delayed implant loading. i.e. the patient will receive a removable prosthesis if necessary and the impressions for the final restoration will be taken 12-14 weeks after implant installation. At 16 weeks, the final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration. Straumann® Bone Level SLActive Implant (4.1mm diameter): Straumann® Bone Level Implants will be placed in healed alveolar ridge (at least 8 weeks post extraction). Implants in Arm 1 will be immediately provisionalized. Implants in Arm 2 will not be immediately provisionalized. Implants in both Arms will be loaded at 16 weeks (final prosthetic reconstruction will be performed according to the standard procedure for single crown restoration)
Product Issues
Implant or procedure related complications
21.4%
3/14
7.1%
1/14
Product Issues
Prosthetic related complication
14.3%
2/14
50.0%
7/14
General disorders
clinical conditions
28.6%
4/14
28.6%
4/14

Additional Information

Professor N Donos

UCL Eastman Dental lnstitute University College London

Phone: +4420 3456 1075

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place

Restriction type: GT60