Psychology x Dentistry
Dentistry is not just a technical discipline, it is a human interaction. Small factors, such as wording, tone, and predictability, can have a large impact. They shape how the brain interprets what is happening in real time.
Dentistry is often taught as a combination of science and technical skill - diagnosis, treatment planning, and procedural execution. However, when it comes to dental anxiety, these alone are often not enough. To truly help patients who are fearful, we must also understand how people perceive and remember their experiences.
Psychology provides a useful framework for this. Two key concepts, perception and memory, play a central role in how patients experience dental care and whether they return.
Perception: how patients interpret reality
Perception is not a direct reflection of reality. It is the brain’s interpretation of sensory input, shaped by expectations, past experiences, and context.
In dentistry, this means that two patients can undergo the exact same procedure and have completely different experiences. One may perceive it as manageable, while another perceives it as threatening or painful.
For anxious patients, perception is often influenced by:
Past negative experiences
Stories or cultural portrayals of dentistry
Language used by clinicians or others
Their current emotional state
When a patient expects something to be painful or distressing, their brain is more likely to interpret sensations in that way. Research has shown that expectation and anxiety can significantly increase perceived pain, even when the physical stimulus is unchanged (Loggia et al., 2008).
This is why small factors, such as wording, tone, and predictability, can have a large impact. They shape how the brain interprets what is happening in real time.
Memory is not a perfect recording. It is constructed and influenced by interpretation. Patients do not remember every detail of an appointment, they remember how it felt.
Memory: how experiences are stored and recalled
If perception shapes the experience in the moment, memory determines what the patient takes away from it.
Importantly, memory is not a perfect recording. It is constructed and influenced by interpretation. Patients do not remember every detail of an appointment, they remember how it felt.
Research in cognitive psychology shows that memories can be altered by suggestion and context (Loftus, 2005). This means that:
The same event can be remembered differently by different people
Memories can become more negative or more positive over time
What is said during and after an experience can influence how it is stored
In dentistry, this has significant implications. A patient who leaves feeling overwhelmed may remember the appointment as worse than it objectively was. Conversely, a patient who feels supported may remember the same procedure as manageable.
The link to dental anxiety
Dental anxiety is often maintained not by the procedure itself, but by how it is perceived and remembered.
Negative perceptions lead to negative memories. These memories then shape future expectations, creating a cycle:
Expectation of a bad experience
Heightened anxiety
Increased perception of pain or discomfort
Negative memory
Avoidance of future care
This cycle reinforces itself over time.
Using psychology to improve patient care
The opportunity for clinicians is that both perception and memory are modifiable by:
Using language that reduces perceived threat
Providing predictability and clear expectations
Supporting patient control
Reinforcing positive aspects of the experience
We can influence how patients experience care in the moment, and how they remember it afterwards.
The Key Takeaway
Understanding perception and memory shifts the focus from “What did I do clinically?” to “How was this experienced by the patient?”.
This does not replace clinical excellence, it enhances it.
When patients perceive care as safe and manageable, and remember it positively, they are far more likely to return, engage in treatment, and maintain their oral health.
For clinicians, this means that psychology is not separate from dentistry, it is a core part of delivering effective care, particularly for patients with dental anxiety.
References
Loggia, M. L., Schweinhardt, P., Villemure, C., & Bushnell, M. C. (2008). Effects of psychological state on pain perception. Pain, 136(1–2), 168–176.
Loftus, E. F. (2005). Planting misinformation in the human mind. Learning & Memory, 12(4), 361–366.