Diagnostic Interview and One-session Cognitive Therapy in Treatment of Dental Fear

Study Overview
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Brief Summary
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Clinical trial of an application of cognitive behavioural one-session therapy method with patients who have severe or average dental fear/anxiety measured by Modified Dental Anxiety Scale (MDAS). The intervention consists of two different parts: a diagnostic interview and one-session treatment of dental care. The method is based on One-Session Therapy manual (Öst & Skaret, 2013). 30 minimum 18 years old adults takes part to the study. They comes from three different places,primary care clinic, community dental care and dentist´s teaching clinic.

Detailed Description
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Purpose is to compare diagnostic interview (n=20) to diagnostic interview and one-session treatment of dental care (n=10). Partners come from three different places, 10 from each: public and private dental care and dental school. Participants from dental school take part to one-session treatment. All participants have normal dental care before final interview. Hypotheses is that dental fear/anxiety will decrease one category (5 points) when measured by Modified dental anxiety scale (MDAS) before the intervention and after normal dental care. Visual Analogue Scale is used to measure the strength of unpleasant feeling before and after intervention in both groups.

Official Title
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An Application of Treatment Regarding a Diagnostic Interview and One-session Cognitive Behavioural Therapy - Effectiveness in Treatment of Dental Fear

Conditions
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Dental Fear

Intervention / Treatment
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* Behavioral: Diagnostic interview
* Behavioral: Combined interview and treatment.


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: MDAS 13 or over, dental care in normal circumstances doesn´t work, motivation to treat dental fear, minimum 18 year Exclusion Criteria: Mental disorder, dementia, pregnancy, acute state of somatic illness

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Diagnostic interview<br>Intervention for this group include diagnostic interview. Oral health Impact Profile (OHIP 14) and Spielberg State and Trait Anxiety (STAI-1) questionnaires and behaviour analyses are used in diagnostic interview. | Behavioral: Diagnostic interview<br>* A profound interview to declare causes for negative thoughts, assumptions and beliefs towards dental care. Participants come from public and Private dental care.<br>|
| Experimental: Combined interview and treatment<br>Intervention for this group include both the diagnostic interview and one session treatment. | Behavioral: Diagnostic interview<br>* A profound interview to declare causes for negative thoughts, assumptions and beliefs towards dental care. Participants come from public and Private dental care.<br>Behavioral: Combined interview and treatment.<br>* Intervention for this group include both the diagnostic interview to declare causes for negative thoughts, assumptions and beliefs towards dental care and one session treatment. Participants come from the Institute of Dentistry.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change in dental fear | Change in fear is measured by a questionnaire called Modified Dental Anxiety Scale (MDAS). Change in fear is indicated by change in mean value of the MDAS between baseline and follow-up measurement | 6 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Compliance to care | Compliance to care is indicated if treatment defined before the baseline interview can be wholly executed. If patient interrupt treatment or cannot be executed at all after baseline interview, then compliance is not fulfilled. | 6 months | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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dental anxiety, cognitive therapy