Fear is an adaptive and evolutionarily beneficial emotion that has historically enabled human survival in the face of threats. However, when fear becomes disproportionate to the actual threat or significantly impairs daily functioning, it can transition from being protective to pathological (1). Dental Phobia (DP), formally recognized by the World Health Organization (WHO) as a diagnosable disorder (2), exemplifies this shift and presents a widespread public health challenge due to its detrimental effects on oral health (3,4).
Global studies estimate that approximately 36% of individuals experience Dental Fear (DF), with 12% reporting extreme levels (5). Dental Anxiety (DA), a related but distinct condition, is more prevalent among younger individuals and females (6). A recent systematic review found that nearly one-quarter of children and adolescents suffer from DA, with prevalence estimates in Iranian youth ranging from 13 to 30% (7). Among adults, significant DA affects roughly 15% of the population, while approximately 1% meet the criteria for DP (8). Elevated DF in adults has been linked to lower quality of life, poorer oral health, reduced socioeconomic status, and avoidance of dental care (3,4,6). Alarmingly, it is estimated that one in ten adults delay or entirely avoid dental visits due to severe DA or phobia (7). The consequences of DA can extend beyond oral health, impacting daily functioning, sleep, and occupational or academic performance (6,8).
The etiology of DP is multifactorial. Common contributors include negative past dental experiences (classical conditioning), as well as indirect learning through the modeling of fearful behaviors by family members or peers (7). For some, fear is directed at the dentist or staff; for others, it stems from anxiety about specific procedures, sensations (e.g., pain), or the dental environment itself. Evidence indicates that children with prior painful dental experiences are nearly five times less likely to return to a dental office (9). Furthermore, approximately 40% of parents contribute to the development of their children’s dental fear by communicating their own negative experiences (10). Children’s DF, especially under the age of nine, has been shown to closely mirror that of their parents (3). One study found that 56% of individuals with childhood-onset DA had a family history of similar anxiety (5).
Both direct and indirect experiences can provoke DF, with major triggers including perceived loss of control and pain during dental treatment. Patients who report experiencing both are nearly 16 times less likely to return to the same dentist and over 13 times more likely to develop extreme fear of dental care. Additional anxiety-inducing stimuli include the appearance and sound of dental instruments (e.g., anesthesia syringes, drills), the sight of blood, and the distinctive smells or tastes associated with dental materials (2,6,9).
Avoidance is a prominent behavioral consequence of DF, with 39% of individuals reporting moderate to high fear levels postponing or evading treatment, often resorting to pharmacological interventions as an alternative (2,5). Beyond oral health, studies have identified associations between DA and broader health conditions, including obesity and cardiovascular disease (8). Given these implications, addressing DP is of critical importance.
A variety of interventions have been proposed to mitigate DA. These include cognitive-behavioral therapy, relaxation techniques, hypnotherapy, systematic desensitization, and observational modeling (3). Routine dental visits particularly when exceeding three appointments have also been associated with reductions in anxiety levels (6). For individuals with treatment-resistant DA or severe phobia, deep sedation or general anesthesia may be considered as a last resort (2).