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Oral Health in Adults: Association With Attitude, Literacy and Psychological Factors

The recruitment status of this study is unknown because the information has not been verified recently.
Verified April 2010 by University of Tromso.
Recruitment status was  Recruiting
Information provided by:
University of Tromso Identifier:
First received: April 28, 2010
Last updated: June 15, 2010
Last verified: April 2010

The purpose of this study to investigate attitude, oral health literacy and psychological factors in order to evaluate if these factors are important for oral health in adults.

The hypotheses are:

  • Multiple interactive sociodemographic, and psychosocial and psychological factors contribute to the level of attitude and oral health literacy.
  • There is an association between the level of oral health literacy and oral health status
  • A structured intervention based on oral health literacy can change the attitude and improve the oral health status.
  • Background knowledge has influence on attitude and oral health literacy
  • Individuals with positive attitude towards dental health and dentist are attentive towards their oral health.

Condition Intervention
Periodontal Status
Plaque Index
Calculus Index
Saliva Secretion Rate
Streptococci Mutans
Behavioral: Oral health instruction based on oral health literacy level

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single Blind (Subject)
Primary Purpose: Prevention
Official Title: Oral Health in Adults: Association With Attitude, Literacy and Psychological Factors

Resource links provided by NLM:

Further study details as provided by University of Tromso:

Primary Outcome Measures:
  • Oral Health [ Time Frame: 6 months after intervention ] [ Designated as safety issue: No ]
    DMFT/DFS index; plaque index; calculus index; periodontal status; Streptococci Mutans; Lactobacilli

  • Psychological factors [ Time Frame: 6 months after intervention ] [ Designated as safety issue: No ]
    Self-image; attachment style; Alexithymia;stress; dental anxiety

Secondary Outcome Measures:
  • Attitudes [ Time Frame: 6 months after intervention ] [ Designated as safety issue: No ]
    attitudes torward oral health and oral hygiene

Estimated Enrollment: 150
Study Start Date: June 2010
Estimated Study Completion Date: June 2011
Estimated Primary Completion Date: December 2010 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Oral Health Literacy Behavioral: Oral health instruction based on oral health literacy level
The intervention includes oral hygiene instruction based on the level of oral health literacy, and will include information about the outcome of the clinical examination. Providing relevant information to the participant will be in focus, and there will be given a personalized demonstration as well as guidance on how to conduct proper oral hygiene practices at home. The aim of the intervention is to improve oral hygiene and attitudes towards dental care by taking the literacy level of the participant into consideration.


Ages Eligible for Study:   20 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Participants > 20 years of age.
  • Participants who master the Norwegian language.
  • Participants who are registered at the university dental clinic (IKO).

Exclusion Criteria:

  • People who do not master the Norwegian language.
  • Strongly visually impaired people that have difficulty in reading.
  • People with a history of heart-attack in the past 6 months.
  • Immune- compromised people and organ- transplanted people.
  • People with other conditions that might lead to more disadvantages than advantages by participating
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01118143

Contact: Jan Bergdahl, Professor +4777649122
Contact: Maud Bergdahl, Professor +4777649119

Institute of Clinical Dentistry, University of Tromsø Recruiting
Tromsø, Norway, N-9037
Contact: Jan Bergdahl, Professor    +4777649122   
Principal Investigator: Jan Bergdahl, Professor         
Public Dental Service Competence Centre of Northern Norway (TkNN) Recruiting
Tromsø, Norway, N-9037
Contact: Ivar Espelid, Professor    +47 77789136   
Sponsors and Collaborators
University of Tromso
  More Information

Additional Information:
No publications provided

Responsible Party: Jan Bergdahl, professor, Institute of Clinical Dentistry Identifier: NCT01118143     History of Changes
Other Study ID Numbers: UIT/TkNN
Study First Received: April 28, 2010
Last Updated: June 15, 2010
Health Authority: Norway:Helsedirektoratet processed this record on March 03, 2015