Effect of removing complete dentures on nasopharyngeal patency during induction of general anesthesia

Effect of removing complete dentures on nasopharyngeal patency during induction of general anesthesia - Effect of removing complete dentures on nasopharyngeal patency during induction of general anesthesia

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000011017

Enrollment

100

Registered

2013-06-22

Start date

2012-09-24

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

Patients wearing complete dentures that undergo elective surgery under general anesthesia

Interventions

Changes in the degree of nasopharyngeal obstruction are estimated between subjects wearing and removing complete dentures during induction of general anesthesia.

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Elective surgical patients wearing complete dentures under general anesthesia

Exclusion criteria

Exclusion criteria: Emergency surgery, previous or predicted difficult airway cases, high risk of aspiration, severe nasal stuffiness

Design outcomes

Primary

Measure	Time frame
Changes in nasopharyngeal patency before and after removing complete dentures. Waveform patterns of capnography sampled at nasal vestibule.	—

Secondary

Measure	Time frame
Changes in nasopharyngeal patency before and after removing complete dentures. Nasopharyngeal obstruction is estimated using a 3-point scale defined by the expansion of lips and cheeks after mask-ventilation in subjects which mouth is airtight sealed.	—

Countries

Japan

Contacts

Public ContactTakashi Imaizumi

Kumamoto Kinoh Hospital division of anesthesia

timz555jp@yahoo.co.jp096-345-8111

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026