UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000045413
Receipt number R000051850
Scientific Title Comparative analysis of two flap designs for the extraction of impacted mandibular horizontal third molars: a multicenter randomized control trial
Date of disclosure of the study information 2021/09/07
Last modified on 2021/09/07 21:00:27

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Basic information

Public title

Comparative analysis of two flap designs for the extraction of impacted mandibular horizontal third molars: a multicenter randomized control trial

Acronym

Comparative analysis of two flap designs for the extraction of impacted mandibular horizontal third molars: a multicenter randomized control trial

Scientific Title

Comparative analysis of two flap designs for the extraction of impacted mandibular horizontal third molars: a multicenter randomized control trial

Scientific Title:Acronym

Comparative analysis of two flap designs for the extraction of impacted mandibular horizontal third molars: a multicenter randomized control trial

Region

Japan


Condition

Condition

impacted mandibular horizontal third molars

Classification by specialty

Dental medicine

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

This multicenter randomized clinical trial (RCT) was conducted to examine the early postoperative complications in mandibular horizontal third molars and to compare the effects of the two flap designs. Achieving this goal will most likely suggest the usefulness of mEF with resultant reduced postoperative complications for patients and enhanced quality of life.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Exploratory

Trial characteristics_2


Developmental phase

Phase II


Assessment

Primary outcomes

The primary endpoint of the study was the difference in the postoperative complications (postoperative pain, hemorrhage, paralysis of the inferior dental nerve, dry socket, and infection) between mEF and TF.

Key secondary outcomes

The secondary endpoint of the study was the difference in the operation time.


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Single blind -participants are blinded

Control

Active

Stratification

NO

Dynamic allocation

YES

Institution consideration

Institution is not considered as adjustment factor.

Blocking

NO

Concealment

Central registration


Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Maneuver

Interventions/Control_1

modified envelope flap

Interventions/Control_2

Triangular flap

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

The inclusion criteria were patients: (1) 20 years or older with impacted mandibular horizontal third molars under local anesthesia in outpatients; (2) with an indication for the extraction of impacted mandibular horizontal third molars; and (3) signed informed consent form for participation and permission to use the obtained data for research purposes.

Key exclusion criteria

(1) deficiency of the mandibular second molars; (2) taking an anticancer drug, an immunosuppressive drug, or an antithrombotic drug; and (3) with a systemic disease that prevents surgery.

Target sample size

200


Research contact person

Name of lead principal investigator

1st name Tomofumi
Middle name
Last name Naruse

Organization

Nagasaki University

Division name

Department of Clinical Oral Oncology

Zip code

856-8561

Address

1-7-1 Sakamoto, Nagasaki 852-8588, Japan

TEL

095-819-7698

Email

naruse12@nagasaki-u.ac.jp


Public contact

Name of contact person

1st name Tomofumi
Middle name
Last name Naruse

Organization

Omura Municipal Hospital

Division name

Department of Dentistry and Oral Surgery

Zip code

856-8561

Address

133-22 Kogashima, Omura 856-8561, Japan

TEL

0957-52-2161

Homepage URL


Email

natsuaya1023@gmail.com


Sponsor or person

Institute

Omura Municipal Hospital

Institute

Department

Personal name



Funding Source

Organization

Nagasaki University

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Omura Municipal Hospital

Address

133-22 Kogashima, Omura 856-8561, Japan

Tel

0957-52-2161

Email

naruse12@nagasaki-u.ac.jp


Secondary IDs

Secondary IDs

YES

Study ID_1

31

Org. issuing International ID_1

Omura Municipal Hospital

Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2021 Year 09 Month 07 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

188

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

Completed

Date of protocol fixation

2018 Year 12 Month 01 Day

Date of IRB

2019 Year 01 Month 09 Day

Anticipated trial start date

2019 Year 01 Month 09 Day

Last follow-up date

2021 Year 01 Month 08 Day

Date of closure to data entry

2021 Year 01 Month 08 Day

Date trial data considered complete

2021 Year 01 Month 08 Day

Date analysis concluded

2021 Year 05 Month 31 Day


Other

Other related information



Management information

Registered date

2021 Year 09 Month 07 Day

Last modified on

2021 Year 09 Month 07 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000051850


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name