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Trial registered on ANZCTR
Registration number
ACTRN12624001151527
Ethics application status
Approved
Date submitted
23/07/2024
Date registered
23/09/2024
Date last updated
23/09/2024
Date data sharing statement initially provided
23/09/2024
Type of registration
Prospectively registered
Titles & IDs
Public title
Effects of antibiotic prophylaxis in dental implant surgery for adult patients: Randomized controlled clinical trial.
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Scientific title
Effects of antibiotic prophylaxis on rates of early implant failure in dental implant surgery for adult patients: Randomized controlled clinical trial.
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Secondary ID [1]
312552
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Nil known
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Edentulous
334445
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Dental Implant Failure
334446
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Condition category
Condition code
Surgery
331068
331068
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0
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Other surgery
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Oral and Gastrointestinal
331364
331364
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0
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Other diseases of the mouth, teeth, oesophagus, digestive system including liver and colon
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Our objective is to evaluate the effect of a single dose of 2 g of oral amoxicillin administered 1h before placement of single or multiple implants placed in a single surgical field in healthy adults versus placebo. Patient adherence is controlled by direct observation.
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Intervention code [1]
329066
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Treatment: Drugs
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Intervention code [2]
329067
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Treatment: Surgery
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Comparator / control treatment
Single dose of 2g of placebo (cellulose capsule) administered 1 h before placement of single or multiple implants
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Control group
Placebo
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Outcomes
Primary outcome [1]
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Early implant failure
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Assessment method [1]
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Defined by removal of the implant before prosthetic loading.
Patient clinic review at 7 days, 14 days, 30 days and 90 days. If early implant failure occurs outside of these periods, the patient will go to the faculty's operating room.
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Timepoint [1]
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Baseline, 7 days, 14 days, 30 days, 90 days
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Secondary outcome [1]
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Presence of postoperatory infection
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Assessment method [1]
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Postoperative pain and inflammation were evaluated daily on days 1 to 7 post-surgery using a VAS (0= no pain/swelling to 10=maximum imaginable pain/swelling), also recording the amount of anti-inflammatory/analgesic rescue medication taken each day. Presence of infection in the next control appointment (14 days, 30 days, 90 days).
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Timepoint [1]
437820
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Baseline, days 1-7, 14 days, 30 days, 90 days post-surgery.
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Secondary outcome [2]
437821
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Implant stability quotient (ISQ) values for primary and secondary implant stability
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Assessment method [2]
437821
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ISQ measured on the surgery day, and in day 90.
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Timepoint [2]
437821
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baseline (surgery day) and 90 days post-surgery
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Eligibility
Key inclusion criteria
Patients 18 years and over
• Subjects treated periodontally, if necessary, prior to placement
of implants
• Presence of sufficient bone and soft tissue that does not imply augmentation surgery in the moment of implant placement
• Implants placed in a single surgical field
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Minimum age
18
Years
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Maximum age
No limit
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
Patients who, due to their medical condition, require antibiotic prophylaxis
postoperative (risk of endocarditis)
• Patients undergoing head and neck radiotherapy less than 2 years ago
• Diabetics (controlled and uncontrolled)
• Allergic to penicillin
• Patients treated with antiresorptive drugs
• Pregnant or breastfeeding
• Immunocompromised
• Patients who are taking antibiotics for other reasons
• Implants that require simultaneous bone regeneration
• Implants in which immediate loading is carried out
• Immediate implants
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Randomised controlled trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
sealed opaque envelopes
numbered containers
allocation involved contacting the holder of the allocation schedule who was "off-site" or at central administration site.
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Simple randomisation using a randomisation table created by computer software (i.e. computerised sequence generation)
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Masking / blinding
Blinded (masking used)
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Who is / are masked / blinded?
The people receiving the treatment/s
The people administering the treatment/s
The people assessing the outcomes
The people analysing the results/data
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Intervention assignment
Parallel
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Other design features
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Phase
Phase 4
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Type of endpoint/s
Efficacy
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Statistical methods / analysis
The sample size was estimated in accordance with Wittes guidelines (Wittes J. Sample size calculations for randomized controlled trials. Epidemiol Rev. 2002;24(1):39–53.) Values published by Edibam et al. (Edibam NR, Lorenzo-Pouso AI, Caponio VCA. Self-reported allergy to penicillin and clindamycin administration may be risk factors for dental implant failure: A systematic review, meta-analysis and delabeling protocol. Clin Oral Implants Res. 2023 Jul;34(7):651–61) were used to calculate the sample size for a statistical power of 90% with 95% confidence interval. A sample size of 90 patients was estimated and increased by 10% to 100 patients to cover possible losses, i.e., 50 per group.
The statistical analysis: SPSS v 29.0 (IBM SPSS, Armonk, NY) will be used for the statistical analysis. Arithmetic means with standard deviations will be calculated for quantitative variables, checking the normality of variable distribution with the Shapiro-Wilk test. Qualitative variables will be expressed as relative frequency (%) and relative risk and in contingency tables. Comparisons will be performed using the Mann-Whitney U test or Student’s t-test, as appropriate. Associations between qualitative variables will be examined with the Fisher test (for 2x2 tables) or chi-square test. a = 0.05 is considered significant.
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Recruitment
Recruitment status
Not yet recruiting
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Date of first participant enrolment
Anticipated
1/10/2024
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Actual
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Date of last participant enrolment
Anticipated
30/04/2025
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Actual
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Date of last data collection
Anticipated
31/07/2025
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Actual
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Sample size
Target
100
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Accrual to date
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Final
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Recruitment outside Australia
Country [1]
26451
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Spain
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State/province [1]
26451
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Granada
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Funding & Sponsors
Funding source category [1]
316979
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University
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Name [1]
316979
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Master in Oral Surgery and Implantology, University of Granada
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Address [1]
316979
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Country [1]
316979
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Spain
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Primary sponsor type
University
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Name
Master in Oral Surgery and Implantology, University of Granada
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Address
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Country
Spain
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Secondary sponsor category [1]
319270
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None
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Name [1]
319270
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Address [1]
319270
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Country [1]
319270
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
315733
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Research Ethics Committee of the University of Granada
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Ethics committee address [1]
315733
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Vice-Rectorate of Research and Transfer UGR, +34 958 24 30 08
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Ethics committee country [1]
315733
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Spain
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Date submitted for ethics approval [1]
315733
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12/02/2024
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Approval date [1]
315733
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14/02/2024
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Ethics approval number [1]
315733
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4034/CEIH/2024
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Summary
Brief summary
Our objective is to evaluate the effect of a single dose of 2 g of oral amoxicillin administered 1 h before placement of single or multiple implants placed in a single surgical field in healthy adults versus placebo to reduce early failure of implants and postoperative infectious complications. The main hypothesis of this study is that there are no differences in the incidence of early implant failures and infectious complications after implant surgery oral implants in healthy, periodontally treated adults by administering a dose single dose of 2 grams of oral amoxicillin 1 hour before the intervention versus placebo.
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Trial website
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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A/Prof Maria Victoria Olmedo Gaya
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Address
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Faculty of Dentistry, University of Granada, Colegio Máximo de Cartuja s/n, Granada 18071, Spain
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Country
135638
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Spain
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Phone
135638
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+34 620900135
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Fax
135638
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Email
135638
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[email protected]
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Contact person for public queries
Name
135639
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Fernando Bravo
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Address
135639
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Faculty of Dentistry, University of Granada, Colegio Máximo de Cartuja s/n, Granada 18071, Spain
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Country
135639
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Spain
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Phone
135639
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+34 680553131
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Fax
135639
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Email
135639
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[email protected]
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Contact person for scientific queries
Name
135640
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Fernando Bravo
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Address
135640
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Faculty of Dentistry, University of Granada, Colegio Máximo de Cartuja s/n, Granada 18071, Spain
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Country
135640
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Spain
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Phone
135640
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+34 680553131
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Fax
135640
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Email
135640
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[email protected]
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Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No
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No/undecided IPD sharing reason/comment
Data protection privacy policy
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What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
Documents added manually
No documents have been uploaded by study researchers.
Documents added automatically
No additional documents have been identified.
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