UMIN-CTR Clinical Trial

Basic information
Official scientific title of the study	Study on factors affecting survival rate of tooth with ceramic crown and antagonist tooth
Title of the study (Brief title)	Study on factors affecting survival rate of tooth with ceramic crown and antagonist tooth
Region	Japan

Condition
Condition	Caries
Classification by specialty	Dental medicine Adult
Classification by malignancy	Others
Genomic information	NO

Objectives
Narrative objectives1	To clarify the factors related to survival of the tooth with ceramic crown and antagonist tooth
Basic objectives2	Efficacy
Basic objectives -Others
Trial characteristics_1
Trial characteristics_2
Developmental phase

Assessment
Primary outcomes	Survival rate of the teeth
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	(1) patients undergoing treatment at Kyushu University Hospital using metal-bonded Crown and all ceramic Crown on molar and dental treatment after returning to maintainance one or more times (2) patient and fully understand this research, individual consent (3) age during informed consent in patients aged 20 years or older
Key exclusion criteria	1.Patients during dental treatment 2.Survey forms are incomplete
Target sample size	200

Research contact person
Name of lead principal investigator	Kiyoshi Koyano
Organization	Faculty of Dental Science Kyushu University
Division name	Section of Implant & Rehabilitative Dentistry Division of Oral Rehabilitation
Address	3-1-1 Maidashi, Higashi-ku
TEL	092-642-6441
Email	koyano@dent.kyushu-u.ac.jp

Public contact
Name of contact person	Kyousuke Ooki
Organization	Kyushu University Hospital
Division name	Removable Prosthodontics
Address	3-1-1 Maidashi, Higashi-ku
TEL	092-642-6441
Homepage URL
Email	o-ki@dent.kyushu-u.ac.jp

Sponsor
Institute	Kyushu University
Institute
Department

Funding Source
Organization	The Academy of Clinical Dentistry
Organization
Division
Category of Funding Organization	Other
Nationality of Funding Organization

Other related organizations
Co-sponsor
Name of secondary funｄer(s)

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	2017 Year 08 Month 17 Day

Progress
Recruitment status	Open public recruiting
Date of protocol fixation	2016 Year 11 Month 21 Day
Anticipated trial start date	2017 Year 08 Month 17 Day
Last follow-up date
Date of closure to data entry
Date trial data considered complete
Date analysis concluded

Related information
URL releasing protocol
Publication of results	Unpublished
URL releasing results
Results
Other related information	Observational studies

Management information
Registered date	2017 Year 08 Month 17 Day
Last modified on	2017 Year 08 Month 17 Day

Link to view the page
URL(English)	https://upload.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000032859