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Characteristics of root canal instrumentation with enlargement of the apical foramen

Morphological, microbiological and immunological characteristics of foraminal enlargement: randomized clinical trial and ex vivo study

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
REBEC
Registry ID
RBR-3qzk3nw
Enrollment
Unknown
Registered
2024-04-15
Start date
2023-10-01
Completion date
Unknown
Last updated
2025-10-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Dental Pulp Necrosis

Interventions

This is a clinical-laboratory study, consisting of two phases. In the first, patients will be randomly divided into two experimental groups (G1 – instrumentation until patency with Reciproc Blue R25
G2 – instrumentation with Reciproc Blue R25, followed by foraminal enlargement with overinstrumentation. Microbiological collections will be carried out after odontometry - control
after R25
after foraminal enlargement
and after seven days. Cytokine collections from the periapical fluid will be carried out immediately after all root canal preparation and after seven days. Postoperative pain will be assessed three ti

Sponsors

Faculdade de Odontologia da Universidade Federal de Minas Gerais
Lead Sponsor
Faculdade de Odontologia da Universidade Federal de Minas Gerais
Collaborator

Eligibility

Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: Patients aged 18 years or over; of both sexes; diagnosed with pulp necrosis and apical periodontitis in upper or lower first and/or second molars

Exclusion criteria

Exclusion criteria: Use of some antibiotics and anti-inflammatory drugs in the three months before endodontic therapy; those who have already started instrumentation of the canals previously and/or present concomitant periodontal involvement in the tooth in question; teeth with root fractures, fused roots, incomplete rhizogenesis, wide foramina whose initial apical instrument in the MV canal is greater than K #20

Design outcomes

Primary

MeasureTime frame
The reduction in intraradicular bacterial load after root canal instrumentation will be analyzed using molecular detection methods (real-time PCR).;We will observe the expression of inflammatory cytokines, through analysis using molecular detection methods (real-time PCR).;The incidence of postoperative pain after root canal instrumentation will be analyzed, using a five-level scale.

Secondary

MeasureTime frame
No secondary outcomes are expected.

Countries

Brazil

Contacts

Public ContactAna Cecília Viana

Faculdade de Odontologia da Universidade Federal de Minas Gerais

acdviana@ufmg.br+55 (31) 3409-2405

Outcome results

None listed

Source: REBEC (via WHO ICTRP)