Inventing new type of denture shaped alternative vocalization

Inventing new type of denture shaped alternative vocalization - Inventing new type of denture shaped alternative vocalization

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000045151

Enrollment

125

Registered

2021-10-01

Start date

2021-10-01

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

laryngectomy

Interventions

We will give you a new artificial larynx and an existing electric artificial larynx and measure how much you can speak compared to the existing alternative vocalization method. For the diseased group

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Those who can speak now or who have acquired vocalizations in the past but have lost their voices

Exclusion criteria

Exclusion criteria: Persons with a history of organic diseases of the tongue and buccal mucosa due to oral cancer, etc. Persons who have difficulty in following instructions due to dementia, etc. Those who are at risk of tooth detachment due to impression taking due to swaying teeth, etc. Those who have difficulty in taking an impression in the oral cavity due to trismus, etc.

Design outcomes

Primary

Measure	Time frame
intelligibility	—

Countries

Japan

Contacts

Public ContactHaruka Tohara

Tokyo Medical and Dental University Department of Dysphagia Rehabilitation

yamadent68@gmail.com0358035562

Outcome results

None listed

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