UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000056481
Receipt number R000064544
Scientific Title A multi-center retrospective observation study on the relationship between the root and mandibular canal in the development of postoperative nerve paralysis in extracted Mandibular Wisdom Teeth
Date of disclosure of the study information 2024/12/17
Last modified on 2024/12/17 21:39:27

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Basic information

Public title

A multi-center retrospective observation study on the relationship between the root and mandibular canal in the development of postoperative nerve paralysis in extracted Mandibular Wisdom Teeth

Acronym

Retrospective study on the relationship between the root and mandibular canal in the development of postoperative nerve paralysis in extracted Mandibular Wisdom Teeth

Scientific Title

A multi-center retrospective observation study on the relationship between the root and mandibular canal in the development of postoperative nerve paralysis in extracted Mandibular Wisdom Teeth

Scientific Title:Acronym

Retrospective study on the relationship between the root and mandibular canal in the development of postoperative nerve paralysis in extracted Mandibular Wisdom Teeth

Region

Japan


Condition

Condition

Wisdom tooth

Classification by specialty

Dental medicine

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

This study will identify anatomical conditions that are at high risk for the development of hypersensitivity (association of the wisdom tooth root with the mandibular canal).

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Onset of nerve paralysis in each case and the degree of mandibular canal deformity caused by the root of the wisdom tooth and whether it is caused by the position of the wisdom tooth root and mandibular canal (buccal, lingual, subapical, and interdental canal).

Key secondary outcomes



Base

Study type

Observational


Study design

Basic design


Randomization


Randomization unit


Blinding


Control


Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms


Purpose of intervention


Type of intervention


Interventions/Control_1


Interventions/Control_2


Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

20 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

(i) Cases with mandibular wisdom teeth extracted at the study institution between April 1, 2018 and March 31, 2021.
(ii) Cases that are 20 years of age or older.

Key exclusion criteria

(1) Cases in which sufficient information cannot be obtained due to poor entries in the medical information record.
(2) Cases in which a CT scan was not taken before surgery.
(3) Cases in which a cyst or tumor exists with the wisdom tooth and is in contact with the mandibular canal.
(4) Cases in which patients developed hypersensitivity prior to extraction of the wisdom tooth.

Target sample size

3727


Research contact person

Name of lead principal investigator

1st name Hiromasa
Middle name
Last name Fukushima

Organization

Nagasaki University Hospital

Division name

Department of Oral surgery

Zip code

852-8588

Address

1-7-1, sakamoto, nagasaki, Japan

TEL

095-819-7698

Email

naruse12@nagasaki-u.ac.jp


Public contact

Name of contact person

1st name Hiromasa
Middle name
Last name Fukushima

Organization

Nagasaki University Hospital

Division name

Oral surgery

Zip code

852-8588

Address

1-7-1, sakamoto, nagasaki, Japan.

TEL

095-819-7698

Homepage URL


Email

naruse12@nagasaki-u.ac.jp


Sponsor or person

Institute

Nagasaki University

Institute

Department

Personal name



Funding Source

Organization

None

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Nagasaki University

Address

1-7-1, sakamoto, nagasaki, Japan.

Tel

0958197698

Email

naruse12@nagasaki-u.ac.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2024 Year 12 Month 17 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Preinitiation

Date of protocol fixation

2024 Year 12 Month 17 Day

Date of IRB


Anticipated trial start date

2024 Year 12 Month 17 Day

Last follow-up date

2025 Year 03 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

None


Management information

Registered date

2024 Year 12 Month 17 Day

Last modified on

2024 Year 12 Month 17 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000064544