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Clinical Trial Details — Status: Withdrawn

Administrative data

NCT number NCT03715439
Other study ID # 72596717.3.0000.5259/2
Secondary ID
Status Withdrawn
Phase
First received
Last updated
Start date November 13, 2018
Est. completion date July 1, 2024

Study information

Verified date June 2022
Source Rio de Janeiro State University
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

A prospective study to evaluate and compare implants placed in preserved versus non-preserved extraction sockets using L-PRF (Leucocyte- and platelet-rich fibrin) after 1, 3 and 5 years.


Recruitment information / eligibility

Status Withdrawn
Enrollment 0
Est. completion date July 1, 2024
Est. primary completion date July 1, 2020
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 18 Years to 70 Years
Eligibility Inclusion Criteria: - Health patients, American Society of Anesthesiologists (ASA) I or II - Patients who need to submit tooth extraction (pre-molar, canine and incisor teeth which present ideal conditions to receive dental implants after 3 months. Exclusion Criteria: - Systemic diseases related with healing disorders - Poor oral hygiene - Pregnant or lactating patient - Use of flap elevation for dental extraction

Study Design


Intervention

Device:
Dental implant
A single dental implant was inserted 3 months after tooth extraction

Locations

Country Name City State
Brazil Rio de Janeiro State University Rio De Janeiro
Brazil Rio de Janeiro State University Rio De Janeiro

Sponsors (1)

Lead Sponsor Collaborator
Rio de Janeiro State University

Country where clinical trial is conducted

Brazil, 

Outcome

Type Measure Description Time frame Safety issue
Primary survival rates of the implants The term surviving refers to those implants that are still in the jaw of the patient but either have not met success criteria or have not been tested for success. 1 year
Primary survival rates of the implants The term surviving refers to those implants that are still in the jaw of the patient but either have not met success criteria or have not been tested for success. 3 years
Primary survival rates of the implants The term surviving refers to those implants that are still in the jaw of the patient but either have not met success criteria or have not been tested for success. 5 years
Primary success rates of the implants Success is graded in three qualities, depending on the extent and results of performed examinations.
Grade 1.
Absence of mobility is checked by individual stability testing of the unattached implant.
Radiographic evaluation of each implant reveals not more than 1.0 mm of marginal bone loss during the first year of loading, followed by not more than 0.2 mm resorption per year.
Severe soft tissue infections, persistent pain, paresthesia, discomfort, etc.
Grade 2.
Radiographic evaluation
Severe soft tissue infections, persistent pain, paresthesia, discomfort, etc, are absent.
Grade 3.
Radiographic evaluation. Peri-implant pathosis, such as a peri-implant radiolucency is absent.
Severe soft tissue infections, persistent pain, paresthesia, discomfort, etc, are absent.
1 year
Primary success rates of the implants Success is graded in three qualities, depending on the extent and results of performed examinations.
Grade 1.
Absence of mobility is checked by individual stability testing of the unattached implant.
Radiographic evaluation of each implant reveals not more than 1.0 mm of marginal bone loss during the first year of loading, followed by not more than 0.2 mm resorption per year.
Severe soft tissue infections, persistent pain, paresthesia, discomfort, etc.
Grade 2.
Radiographic evaluation
Severe soft tissue infections, persistent pain, paresthesia, discomfort, etc, are absent.
Grade 3.
Radiographic evaluation. Peri-implant pathosis, such as a peri-implant radiolucency is absent.
Severe soft tissue infections, persistent pain, paresthesia, discomfort, etc, are absent.
3 years
Primary success rates of the implants Success is graded in three qualities, depending on the extent and results of performed examinations.
Grade 1.
Absence of mobility is checked by individual stability testing of the unattached implant.
Radiographic evaluation of each implant reveals not more than 1.0 mm of marginal bone loss during the first year of loading, followed by not more than 0.2 mm resorption per year.
Severe soft tissue infections, persistent pain, paresthesia, discomfort, etc.
Grade 2.
Radiographic evaluation
Severe soft tissue infections, persistent pain, paresthesia, discomfort, etc, are absent.
Grade 3.
Radiographic evaluation. Peri-implant pathosis, such as a peri-implant radiolucency is absent.
Severe soft tissue infections, persistent pain, paresthesia, discomfort, etc, are absent.
5 years
Secondary Marginal Bone Loss Periapical digital radiographs will be used to make the measurements and evaluations. 1 year
Secondary Marginal Bone Loss Periapical digital radiographs will be used to make the measurements and evaluations. 3 years
Secondary Marginal Bone Loss Periapical digital radiographs will be used to make the measurements and evaluations. 5 years
Secondary Pink Esthetic Score The PES is based on seven variables: mesial papilla, distal papilla, soft-tissue level, soft tissue contour, alveolar process deficiency, soft-tissue color and texture. Each variable was assessed with a 2-1-0 score, with 2 being the best and 0 being the poorest score. 1 year
Secondary Pink Esthetic Score The PES is based on seven variables: mesial papilla, distal papilla, soft-tissue level, soft tissue contour, alveolar process deficiency, soft-tissue color and texture. Each variable was assessed with a 2-1-0 score, with 2 being the best and 0 being the poorest score. 3 years
Secondary Pink Esthetic Score The PES is based on seven variables: mesial papilla, distal papilla, soft-tissue level, soft tissue contour, alveolar process deficiency, soft-tissue color and texture. Each variable was assessed with a 2-1-0 score, with 2 being the best and 0 being the poorest score. 5 years
Secondary Patient satisfaction - Questions will be scored on 100mm visual analog scales. The patients marked their response on a horizontal line for which the most negative expression corresponded to 0 and the most positive to 100. Questions: Are you satisfied with the aesthetic outcome of the gums surrounding this implant? Are you satisfied with the function of your implant-supported tooth? Would you undergo the same procedure again? 1 year
Secondary Patient satisfaction - Questions will be scored on 100mm visual analog scales. The patients marked their response on a horizontal line for which the most negative expression corresponded to 0 and the most positive to 100. Questions: Are you satisfied with the aesthetic outcome of the gums surrounding this implant? Are you satisfied with the function of your implant-supported tooth? Would you undergo the same procedure again? 3 years
Secondary Patient satisfaction - Questions will be scored on 100mm visual analog scales. The patients marked their response on a horizontal line for which the most negative expression corresponded to 0 and the most positive to 100. Questions: Are you satisfied with the aesthetic outcome of the gums surrounding this implant? Are you satisfied with the function of your implant-supported tooth? Would you undergo the same procedure again? 5 years
Secondary Patient satisfaction with single-tooth implant treatment measured with the Oral health impact profile-14 questionnaire The questionnaire was divided into seven domains, containing two questions each, resulting in a total of 14 questions. The domains were functional limitation physical disability, physical pain, psychological disability, psychological discomfort, social disability and handicap. The overall OHIP-14 score is the mean of the 14 questions. The questions pertained to seven domains and were averaged on a scale of 0-4, with 0 defined as "never" a problem and 4 defined as "very often" a problem. 1 year
Secondary Patient satisfaction with single-tooth implant treatment measured with the Oral health impact profile-14 questionnaire The questionnaire was divided into seven domains, containing two questions each, resulting in a total of 14 questions. The domains were functional limitation physical disability, physical pain, psychological disability, psychological discomfort, social disability and handicap. The overall OHIP-14 score is the mean of the 14 questions. The questions pertained to seven domains and were averaged on a scale of 0-4, with 0 defined as "never" a problem and 4 defined as "very often" a problem. 3 years
Secondary Patient satisfaction with single-tooth implant treatment measured with the Oral health impact profile-14 questionnaire The questionnaire was divided into seven domains, containing two questions each, resulting in a total of 14 questions. The domains were functional limitation physical disability, physical pain, psychological disability, psychological discomfort, social disability and handicap. The overall OHIP-14 score is the mean of the 14 questions. The questions pertained to seven domains and were averaged on a scale of 0-4, with 0 defined as "never" a problem and 4 defined as "very often" a problem. 5 years
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