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Comparing Post Operative Pain With and Without Apical Patency Technique in Asymptomatic Irreversible Pulpitis Teeth

Comparing Post Operative Pain With and Without Apical Patency Technique in Asymptomatic Irreversible Pulpitis Teeth

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07648862
Enrollment
150
Registered
2026-06-15
Start date
2026-08-24
Completion date
2026-11-15
Last updated
2026-08-26

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

Conditions

Asymptomatic Irreversible Pulpitis

Brief summary

Primary Outcome - Measure Presence of postoperative pain Primary Outcome - Time Frame 24 hours post-treatment Primary Outcome - Description Postoperative pain assessed using the Numerical Rating Scale (NRS), categorized as present (NRS ≥1) or absent (NRS = 0)

Detailed description

Apical patency is a root canal preparation technique in which a small flexible K-file is passively passed just beyond the apical foramen to maintain canal permeability and prevent apical debris accumulation. Although this method improves irrigation flow to the apical third and reduces the risk of canal blockage, ledge formation, and transportation, its association with postoperative pain remains debatable. This randomized clinical trial aims to compare the frequency of postoperative pain between two treatment protocols in patients with asymptomatic irreversible pulpitis involving maxillary or mandibular premolars. Participants will be randomly allocated into two equal groups. In the Apical Patency Group (APG), a pre-curved #10 K-file will be gently passed 0.5 mm beyond the radiographic working length after each rotary instrument, without filing motion. In the Non-Patency Group (NPG), instrumentation and recapitulation will be strictly confined to the established working length, with no instrument intentionally passing beyond the apex. All procedures will be performed under standard endodontic protocols using rubber dam isolation, 2% lidocaine anesthesia, and 3% sodium hypochlorite irrigation. Postoperative pain severity will be self-assessed by patients using the 11-point Numerical Rating Scale (NRS) at 24 hours post-treatment. The primary outcome will be the presence or absence of pain, while secondary analysis will explore pain intensity categories (mild, moderate, severe)."

Interventions

PROCEDUREApical Patency Technique

After each rotary instrument, a pre-curved #10 K-file was passively passed 0.5 mm beyond the working length. No filing motion was performed.

PROCEDURENon-Patency Technique

No instrument was intentionally passed beyond the working length. Recapitulation was performed only to the working length.

Sponsors

Bolan Medical Complex Hospital Quetta Pakistan
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Participants receive root canal treatment either with or without apical patency.

Eligibility

Sex/Gender
ALL
Age
20 Years to 50 Years
Healthy volunteers
No

Inclusion criteria

Age 20-50 years; maxillary or mandibular first/second premolar; diagnosed with asymptomatic irreversible pulpitis (no history of spontaneous pain; caries extending ≥2/3 into dentine; no tenderness to percussion/palpation; exaggerated, prolonged response to pulp vitality testing - cold, hot, or EPT)

Exclusion criteria

Uncontrolled diabetes mellitus; uncontrolled hypertension; bleeding disorder; use of anticoagulant therapy; active peptic ulcer; ischemic heart disease; compromised hepatic or renal function; immature apex; internal or external root resorption; blocked or sclerosed canal; periapical radiolucency; acute apical periodontitis; grade 3 mobility; root fracture; teeth in which patency cannot be maintained; symptomatic irreversible pulpitis; non-restorable teeth; retreatment cases

Design outcomes

Primary

MeasureTime frameDescription
Primary Outcome - Measure Presence of postoperative pain24 hours post-treatmentPostoperative pain assessed using the Numerical Rating Scale (NRS), categorized as present (NRS ≥1) or absent (NRS = 0)

Countries

Pakistan

Contacts

CONTACTDr. Misbah Principal Investigator, BDS FCPS
khanmusbah@gmail.com+92-334-1364014
STUDY_CHAIRDr Syed Attaullah Shah, BDS, Fcps

Bolan medical College sandeman Provisional hospital Quetta

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 27, 2026