Metronidazole vs Azithromycin in Periodontal Surgery for Patients Positive to Porphyromonas Gingivalis

Universidad Complutense de Madrid50 enrolled

Overview

The objective of this study is to determine whether, in patients with non treated periodontitis (stage III and IV) positive to Porphyromonas gingivalis, the use of systemic antimicrobials (metronidazole versus azithromycin) as an adjunctive treatment to periodontal surgery provides clinical and microbiological benefits.

Design: randomized, parallel and triple blind clinical trial Sample: Patients with periodontitis (stages III and IV) and positive to Porphyromonas gingivalis who potentially need periodontal surgery were recruited. 25 patients were randomized to the test group (periodontal surgery + azithromycin) and another 25 subjects to the control group (periodontal surgery + metronidazole). Study visits: * Examiner calibration * Recruitment of patients. Screening. Data collection (clinical and microbiological variables). * Phase I. * Non-surgical periodontal treatment (2 visits). * Reevaluation at 6 weeks. Data collection (clinical and microbiological variables). Identification of study candidate patients (Patients with probing pocket depth \> 5 mm and positive to Porphyromonas gingivalis). Randomization of study groups. * Phase II. Surgical periodontal treatment. * Periodontal surgery sessions. In the last surgery, the antibiotic test (azithromycin) or metronidazole (control) is administered according to randomization. * Suture removal 1 week after performing periodontal surgery. Data collection 1 week after antibiotic consumption with the last surgery (patient-centered variables on the side effects of antibiotics). * Re-evaluation of the surgical phase at 6 weeks after the last surgery session. Data collection (clinical variables). * Phase III. Periodontal maintenance. * Maintenance 1 (3 months post surgery). Data collection (Clinical and microbiological variables). * Maintenance 2 (6 months post surgery). Data collection (Clinical and microbiological variables). * Maintenance 3 (9 months post surgery). Data collection (Clinical variables). * Maintenance 4 (12 months post surgery). Data collection (Clinical and microbiological variables). * Maintenance 5 (4 years post surgery). Data collection (Clinical and microbiological variables).

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

TRIPLE

Enrollment

Conditions

Periodontitis Surgery

Interventions

AzithromycinOTHER

azithromycin (500 mg/24h/3 days)

MetronidazoleOTHER

metronidazole (500 mg/8h/7 days)

Eligibility

Sex: ALLHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * Diagnosis of periodontitis (stages III or IV) that may require periodontal surgery * Have at least 10 teeth in function, excluding third molars. * Present locations with probing depth (PS)\> 6 mm in at least 30% of the teeth. * Present radiographic evidence of moderate-severe bone loss in at least 30% of the dentition. * Detection of P. gingivalis in subgingival samples taken at the screening visit as well as in the post-scaling and root planning visit and processed by culture. * Systemically healthy patients. Exclusion Criteria: * Pregnant or lactating women. * Presenting systemic pathology and / or taking medication that may affect the periodontal situation and / or patients requiring antibiotic prophylaxis. * Have received systemic antimicrobial treatment in the previous 6 months. * Have received periodontal treatment in the 6 months prior to the beginning of the study. * Patients allergic to metronidazole, or to any of the components of commercial formulations thereof (Flagyl®). * Patients allergic to azithromycin, or to any of the components of commercial formulations thereof (Zithromax®). * Patients who refuse to sign the informed consent.

Locations (1)

Faculty of Dentistry, Univesity Complutense, Madrid

Madrid, Spain

Outcomes

Primary Outcomes

Probing pocket depth (PPD)

Full mouth measurement at 6 sites per tooth, with a manual periodontal probe University North Carolina 15 (UNC-15 mm)

Time frame: At 6 weeks after periodontal surgery

Secondary Outcomes

Probing pocket depth (PPD)

Full mouth measurement at 6 sites per tooth, with a manual periodontal probe UNC-15 mm

Time frame: At the beginning of the study, 6 weeks after scaling and root planning (Reevaluation phase I), 6 weeks after the last surgery session (Reevaluation Phase II) and during the maintenance Phase III (3, 6, 9, 12 and 48 months after periodontal surgery)

Gingival Recession (REC)

Full mouth measurement at 6 sites per tooth, with a manual periodontal probe UNC-15 mm

Plaque index (PlI)

Full mouth measurement at 6 sites per tooth, with a manual periodontal probe UNC-15 mm

Gingival index (GI)

Full mouth measurement of the bleeding on probing at 6 sites per tooth, with a manual periodontal probe UNC-15 mm

Data from ClinicalTrials.gov

This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.