Table 2.

Inclusion and exclusion criteria.

Inclusion criteria
1. English language
2. Conventional dental treatment + music therapy (experimental) and conventional dental treatment (control)
3. Outcome indicators: stress levels (cortisol in saliva) and anxiety levels (ΔSL and ΔAL)
4. Randomized clinical trials (RCTs)
Exclusion criteria
1. Studies in which full text cannot be accessed
2. Studies on non-conventional treatments (treatment of oral mucosal lesions, oral cancer, and resective surgery, among others)
3. Non-relevant articles (clinical cases, reviews, conference abstracts, meta-analyses, and preclinical studies, among others)
4. Small sample size (less than 5 subjects)
5. Duplicate studies in the databases consulted