Assessment & Research

Changes in levels of dental anxiety as a function of dental experience.

Liddell et al. (2000) · Behavior modification 2000
★ The Verdict

Past invasive dental work and pain fear predict who stays afraid, so screen for both before you start exposure.

✓ Read this if BCBAs helping teens or adults who skip dental visits due to anxiety.
✗ Skip if Clinicians working only on medical or food refusal.

01Research in Context

01

What this study did

The team asked adults with dental fear about past work and pain.

They split people into two camps: those who still avoid the dentist and those whose fear had faded.

Everyone filled out surveys on pain fear, past drilling, and dental attitudes.

02

What they found

The still-afraid group recalled more invasive procedures and stronger pain fear.

They also held more negative thoughts about dentists and clinics.

Fear that had gone away was linked with milder past care and calmer pain memories.

03

How this fits with other research

Gayle et al. (2023) extend these findings by adding live data. They paired graduated exposure with heart-rate checks during mock cleanings. When heart rate dropped and cooperation rose together, kids moved to the next step.

McConnell et al. (2020) push further. They gave autistic young men real exposure plus escape extinction. Disruptive behavior fell and exams were finished. Their work turns the target’s warning signs into an active treatment plan.

dos Santos et al. (2012) show the body speaks early. Kids with developmental delay had high saliva amylase before any drill touched a tooth. The target’s pain-fear surveys and this biomarker both flag clients who need extra prep.

04

Why it matters

You now have a quick screen. Ask clients about past crowns, root canals, or heavy drilling. Add one pain-fear question. A high score means schedule shorter visits, start with exposure to the chair, and track heart rate or saliva if you can. Pair the steps with escape extinction for clients who tantrum. These moves lower the chance that today’s cleaning becomes tomorrow’s horror story.

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Add two intake questions: 'Ever had a root canal or crown?' and 'Rate your fear of dental pain 1-10.' Score above zero starts graduated exposure at the waiting-room door.

02At a glance

Intervention
not applicable
Design
quasi experimental
Population
anxiety disorder
Finding
not reported

03Original abstract

From the literature, it is increasingly apparent that dentally anxious individuals are not a homogeneous group and that the development and maintenance of dental anxiety are complex phenomena. In this study, individuals who had avoided dental treatment in the past due to fear but were no longer fearful were compared with others who had avoided and were still fearful on a number of demographic, experiential, and attitudinal variables under the assumption that avoidance is likely to prevent the emotional processing of dental anxiety. The groups differed markedly in their experience of dentistry; anxious avoiders were more likely to have experienced more invasive and less noninvasive dental treatment; they feared pain more and were more negative about dentistry than those whose anxiety had remitted. In addition, the remitted avoiders were less likely to claim frightening or embarrassing dental experiences as well as being less reactive to these experiences than the others.

Behavior modification, 2000 · doi:10.1177/0145445500241003