Microbiome Development in the Early Healing of Osseointegrated Implants

Status Completed

Clinical Trial Summary

The aim is to compare the microbiome composition on the first month of healing and 2 years after rehabilitation in two different implant surfaces (SLA® vs SLActive®). Subjects in need of two or more dental implants (canine to molars) in two different quadrants will be included so that, one study test (SLActive®) and one study control (SLA®) implant will be placed in different quadrants in healed extraction sites. Gingival crevicular fluid (GCF) samples will be taken for microbiome analysis at different time points. Samples will be processed using high throughput sequencing technologies (Illumina® MiSeq) and the raw sequencing reads will be processed with the Quantitative Insights Into Microbial Ecology (QIIME2) pipeline. DADA2 will be used for quality trimming and inferring amplicon sequence variants (ASVs). Taxonomy will be assigned to ASVs using the Naive Bayesian Classifier integrated in QIIME2 plugins and the eHOMD RefSeq database. Alpha-diversity and Beta diversity will be calculated and measured. Differences in bacterial abundance will be analyzed using linear models for differential abundance analysis (LinDA). This is the long-term follow-up of the randomized clinical trial entitled "Randomized controlled study to evaluate the clinical behavior of dental implants with SLActive® surface vs. SLA® surface" Promoter Code: CR 2017-05, Internal Code: 18/580-R_P, Promoter: Institute Straumann AG. In this new protocol, the participants included in the clinical trial at the Complutense University of Madrid will be selected, who will undergo a new follow-up visit at 2 years, to measure the clinical, radiographic and microbiological situation. periodontal treatment without any additional intervention. In addition, it is intended to analyze the microbiome of the samples of gingival crevicular fluid that we have frozen from the patients of the UCM, as well as of the samples that are taken after two years. All these changes are promoted by our ETEP (Etiology and Therapeutics of Periodontal and Peri-implant Diseases) research group, independently of the original sponsor of the study.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT05941663
Study type	Interventional
Source	Universidad Complutense de Madrid
Contact
Status	Completed
Phase	N/A
Start date	January 28, 2023
Completion date	June 30, 2023

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Microbiome Development in the Early Healing of Osseointegrated Implants — PiMicrobiome

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms