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CompletedNCT01680848Updated Dec 12, 2016Results posted

Assessment of Caries Diagnosis and Caries Treatment in Dental PBRN Japan

An observational study in Dental Caries, sponsored by Dental PBRN Japan. Completed. Open to participants aged 24 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2016-12-12.

Sponsored by Dental PBRN Japan · Observational

Study type
Observational
Model
Cohort
Time perspective
Cross-sectional
Enrollment
282
Ages
24 Years and older
Sex
All
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Study summary

The objective of this study is to examine what methods Dental PBRN Japan dentists adopt for diagnosis, treatment, and prevention of dental caries.

Read the detailed description

We conducted a cross-sectional study consisting of a questionnaire survey in Japan. We used the same questionnaire as used in the DPBRN Study, "Assessment of Caries Diagnosis and Caries Treatment".

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Conditions studied

  • Dental Caries

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Keywords

  • Dental caries,
  • Caries diagnosis,
  • Caries treatment,
  • Caries risk,
  • Practice pattern,
  • Clinical epidemiology,
  • Dental Practice-Based Research Network
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In context

Dental Caries

1,109 studies on the registry are indexed under Dental Caries; 197 are open to participants now.

This study's enrollment of 282 is above the median of 180 across 177 observational studies indexed under Dental Caries.

Browse Dental Caries studies →

Lead sponsor

This is the only study on the registry with Dental PBRN Japan as lead sponsor.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
24 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Participants are dentists who work in outpatient dental practices who have affiliated with Dental PBRN Japan

Inclusion criteria

  • This study queried dentists working in outpatient dental practices who have affiliated with JDPBRN to investigate research questions and to share experiences and expertise (n = 282).

Exclusion criteria

Exclusion Criteria:

  • Dentist who doesn't perform some measure of restorative dentistry at their practice.
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Study design

Observational model
Cohort
Time perspective
Cross-sectional
Enrollment
282 participants (actual)
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What researchers measure

Primary outcomes

  1. Percentage of Participants Who Indicate Surgical Intervention

    Time frame: Up to 24 months

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Results

Posted Dec 12, 2016

Participant flow

Participant flow — Overall Study
MilestoneJDPBRN Dentists
Started282
Completed189
Not completed93

Outcome measures

PrimaryPercentage of Participants Who Indicate Surgical Intervention
Time frame:
Up to 24 months
Reported as:
Number · percentage of the dentists
Percentage of Participants Who Indicate Surgical Intervention
percentage of the dentistsHigh Caries Risk
Percentage of Participants Who Indicate Surgical Intervention74

Adverse events

Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
This is an Observational Study———

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)JDPBRN Dentists
<=18 years0
Between 18 and 65 years189
>=65 years0
Sex: Female, Male
Sex: Female, Male(Participants)JDPBRN Dentists
Female35
Male154
Race (NIH/OMB)
Race (NIH/OMB)(Participants)JDPBRN Dentists
American Indian or Alaska Native0
Asian186
Native Hawaiian or Other Pacific Islander1
Black or African American0
White1
More than one race0
Unknown or Not Reported1
Region of Enrollment
Region of Enrollment(participants)JDPBRN Dentists
Japan189
The mean number of years elapsed since graduation from dental school
The mean number of years elapsed since graduation from dental school(years)JDPBRN Dentists
Mean18.5 ± 9.9
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Study locations

No study locations are listed for this record.

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References and documents

Publications

  • Yokoyama Y, Kakudate N, Sumida F, Matsumoto Y, Gilbert GH, Gordan VV. Evidence-practice gap for dental sealant application: results from a dental practice-based research network in Japan. Int Dent J. 2016 Dec;66(6):330-336. doi: 10.1111/idj.12252. Epub 2016 Jul 28. PubMed 27466073 ↗
  • Yokoyama Y, Kakudate N, Sumida F, Matsumoto Y, Gilbert GH, Gordan VV. Evidence-practice gap for in-office fluoride application in a dental practice-based research network. J Public Health Dent. 2016 Mar;76(2):91-7. doi: 10.1111/jphd.12114. Epub 2015 Jul 31. PubMed 26235360 ↗
  • Kakudate N, Sumida F, Matsumoto Y, Yokoyama Y, Riley JL 3rd, Gilbert GH, Gordan VV. Dentists' decisions to conduct caries risk assessment in a Dental Practice-Based Research Network. Community Dent Oral Epidemiol. 2015 Apr;43(2):128-34. doi: 10.1111/cdoe.12127. Epub 2014 Sep 1. PubMed 25175077 ↗
  • Kakudate N, Sumida F, Matsumoto Y, Yokoyama Y, Gilbert GH, Gordan VV. Patient age and dentists' decisions about occlusal caries treatment thresholds. Oper Dent. 2014 Sep-Oct;39(5):473-80. doi: 10.2341/13-141-C. Epub 2014 May 8. PubMed 24809540 ↗
  • Yokoyama Y, Kakudate N, Sumida F, Matsumoto Y, Gilbert GH, Gordan VV. Dentists' dietary perception and practice patterns in a dental practice-based research network. PLoS One. 2013;8(3):e59615. doi: 10.1371/journal.pone.0059615. Epub 2013 Mar 25. PubMed 23536883 ↗
  • Kakudate N, Sumida F, Matsumoto Y, Manabe K, Yokoyama Y, Gilbert GH, Gordan VV. Restorative treatment thresholds for proximal caries in dental PBRN. J Dent Res. 2012 Dec;91(12):1202-8. doi: 10.1177/0022034512464778. Epub 2012 Oct 9. PubMed 23053847 ↗

Individual participant data

Plan to share: No — Currently, we have no plan.

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 12, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01680848
Lead sponsor
Dental PBRN Japan
Collaborators
Dental Practice-Based Research Network
Responsible party
Sponsor
First posted
Sep 7, 2012
Start date
May 2010
Primary completion
Oct 2012
Completion
Feb 2015
Results posted
Dec 12, 2016
Last update
Dec 12, 2016

Study contacts

Naoki Kakudate, DDS PhD MPH
principal investigator · Kyushu Dental University

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Aug 2016. You cannot join it, but the record below documents what was studied.

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