Changes induced by music therapy to physiologic parameters in patients with dental anxiety

Stress and Hypothalamic-Pituitary-Adrenal Axis: Effect on Prognosis of Dental Treatment

Stress is a process that activates neuronal, metabolic, and neuroendocrine mechanisms. The individual's response may be determined by variables such as genetic factors, environmental conditions, sex, and age, among others. These responses are critical for survival, and the involvement of the hypothalamic-pituitary-adrenal axis is necessary for adaptation, which through counter-regulatory mechanisms seeks to restore homeostasis. Dentists are aware that there are variations in people's response to treatment, and there are many patients in whom dental treatment generates an important source of stress, which in many cases leads to treatment avoidance behavior.

Interventions to reduce adult state anxiety, dental trait anxiety, and dental phobia: A systematic review and meta-analyses of randomized controlled trials

This review evaluates randomized controlled trials (RCTs) intervening on adult state anxiety (fear and emotional distress during dental treatment), chronic dental (trait) anxiety or dental phobia (disproportionately high trait anxiety; meeting diagnostic criteria for specific phobia). Seven online databases were systematically searched. 173 RCTs met inclusion criteria, of which 67 qualified for 14 pooled analyses. To alleviate state anxiety during oral surgery, moderate-certainty evidence supports employing hypnosis (SMD=-0.31, 95 %CI[-0.56,-0.05]), and low-certainty evidence supports prescribing benzodiazepines (SMD=-0.43, [-0.74,-0.12]). Evidence for reducing state anxiety is inconclusive regarding psychotherapy, and does not support virtual reality exposure therapy (VRET), virtual reality distraction, music, aromatherapy, video information and acupuncture. To reduce trait anxiety, moderate-certainty evidence supports using Cognitive Behavioral Therapy (CBT; SMD=-0.65, [-1.06, -0.24]). Regarding dental phobia, evidence with low-to-moderate certainty supports employing psychotherapy (SMD=-0.48, [-0.72,-0.24]), and CBT specifically (SMD=-0.43, [-0.68,-0.17]), but not VRET. These results show that dental anxieties are manageable and treatable. Clinicians should ensure that interventions match their purpose-managing acute emotions during treatment, or alleviating chronic anxiety and avoidance tendencies. Existing research gaps underscore the necessity for future trials to minimize bias and follow CONSORT reporting guidelines.

Effect of audio and virtual reality distraction on the dental anxiety of children with mild intellectual disability

BACKGROUND AND AIM

Intellectual disability, is a neurodevelopmental disorder that typically manifests early in childhood and consists of both intellectual and adaptive functioning deficits in conceptual, social, and practical domains. It can be categorized into mild, moderate, severe, and profound based on its severity. Cognitive impairment may be observed predominantly in children with intellectual disabilities. Marked deficits in areas of learning, planning, communication, social participation, and personal independence in children with mild intellectual disabilities make behavior guidance and communication a challenge during dental treatments. The aim was to evaluate and compare the use of two different distraction tools, audio, and virtual reality (VR) on the dental anxiety of children with mild intellectual disability during dental treatment.

METHODS

Twenty children diagnosed with mild intellectual disability were equally divided into two groups. A cross-over study design consisting of two appointments 1 month apart was employed. In the first appointment, audio and VR distractions were provided to participants in Groups 1 and 2, respectively, and the distraction tools provided to the participants were interchanged in the second appointment. A trained observer recorded physiological parameters (pulse rate and oxygen saturation) and observational parameters (Venham's anxiety rating scale) during both appointments at three-time intervals. Statistical intra-group and inter-group comparison analyses were performed using Friedman's and Mann-Whitney U tests.

RESULTS

A decrease in pulse, increase in oxygen saturation levels, and a decrease in Venham's Anxiety Rating Scores (statistically significant p < .05 / highly significant p < .01) was observed on introducing the distraction techniques in Groups 1 and 2 in both appointments. A statistically non-significant difference (p > .05) in physiological and observational parameters was observed between Groups 1 and 2 in both appointments.

CONCLUSION

Audio and VR distraction techniques can be employed for behavior guidance in children with mild intellectual disability during restorative dental procedures.

Efficacy of music therapy on stress and anxiety prior to dental treatment: a systematic review and meta-analysis of randomized clinical trials

Introduction

Stress and anxiety are emotional states that often accompany patients who have to receive dental treatments, leading them to postpone or avoid treatments with the consequent deterioration of their oral health and, hence, their general condition. Music therapy has been shown to be an alternative to other treatments that are invasive and not without danger, such as anxiolytics or sedation. This systematic review and meta-analysis evaluated the effect of music therapy on anxiety and stress prior to dental treatments.

Methods

Studies published in PubMed (through Medline), Web of Science (WOS), Embase, and Cochrane Library databases were consulted up to October 2023. The inclusion criteria were established for intervention studies (randomized controlled trials, RCTs) according to the PICOS (population, intervention, comparison, outcomes, and study) strategy in subjects with dental stress and anxiety (participants) treated with music therapy (intervention) in comparison with patients without music therapy (control) and evaluating the response to treatment (outcomes).

Results

A total of 154 results were obtained, with 14 studies finally selected. The risk of bias and the methodological quality were assessed using the Cochrane Risk of Bias Tool and the Jadad scale, respectively. A random-effects meta-analysis was used to quantify the results of the pooled studies, while a fixed-effects meta-analysis was used for studies in the pediatric population. The meta-analysis of pooled studies found statistical significance in the subgroups of anxiety and anxiety-stress (p = 0.03 and p = 0.05, respectively), with an overall effect in favor of the intervention group (p = 0.005). Meta-analysis of the studies in the pediatric population showed considerable statistical significance for the experimental group (p < 0.00001).

Conclusion

Music therapy as a treatment for stress and anxiety, prior to dental treatment, proved to be effective in both children and adults although more well-designed randomized clinical studies are needed to validate its efficacy.

Systematic review registration

INPLASY, identifier 202312000.

The effect of aromatherapy with Lavender-Neroli oil and music in management of pediatric dental anxiety: a randomized control trial

AIM

This study aimed to evaluate the efficacy of aromatherapy with Lavender-Neroli essential oil combined with background music in reducing dental anxiety and pain during anesthesia in children.

MATERIALS AND METHODS

A total of 56 children aged 6-10 years old who needed dental treatment with inferior alveolar nerve injection (IANB) were randomly divided into two groups: Group 1 (Experimental, n = 28) aromatherapy with music group, and Group 2 (Control, n = 28) the placebo group. Children in the group 1 were asked to inhale the aromatic blend of Lavender-Neroli essential oil using a nasal mask similar to one that is used for nitrous oxide after modifying it by adding a 3D printed box on its circle hole and listening to their favorite music as a background before 5 min and during anesthesia, meanwhile in the placebo group children were asked to wear an empty nasal mask. Anxiety and pain were been assessed before and after anesthesia using the self-report anxiety scale Facial image scale (FIS), Observational pain assessment scale Face-Legs-Activity-Cry-Consolability (FLACC), heart rate, SPO2 saturation, diastolic and systolic blood pressure.

RESULTS

Dental anxiety and vital signs except SPO2 saturation were significantly lower in the aromatherapy with music group when compared to the control group (p < 0.05), with no differences in pain perception between groups (p = 0.176).

CONCLUSIONS

Aromatherapy with Lavender-Neroli oil combined with music seems to be a useful and safe non-pharmacologic technique for managing dental anxiety in children.

Effect of music during endodontic treatment on patients' anxiety: a systematic review of randomized clinical trials

OBJECTIVES

Endodontic treatment is one of the most fearful procedures among dentistry, and the use of music during the procedure has been evaluated to control patients' anxiety. This systematic review has been conducted to provide a synthesis of the state of knowledge in this field and aimed to answer the following question: "Can music therapy reduce patient's state anxiety during endodontic treatment?".

METHODS

A search was performed in six electronic databases (PubMed, Cochrane Library, Scopus, Web of Science, EMBASE, and Open Gray) for articles published until April 2022. The eligibility criteria, based on the PICOS strategy, were as follows: (P) patients undergoing endodontic treatment; (I) exposure to music; (C) no music; (O) patients' anxiety; (S) only randomized clinical trials. The risk of bias was analyzed according to the Cochrane Risk of Bias tool for randomized controlled trials (RoB 2). The strength of evidence from the included studies was assessed using the Grading of Assessment, Development, and Assessment Recommendations (GRADE) tool.

RESULTS

Five eligible studies were retrieved. A low to high risk of bias was verified. Descriptive analysis showed an effect in favor of music intervention, with differences among state anxiety, heart rate and blood pressure.

CONCLUSIONS

With a very low quality of evidence, dental care professionals may consider playing background music during endodontic treatment since it is a cost-effective and easy alternative to trying to reduce dental anxiety.

CLINICAL RELEVANCE

Five studies were included in this systematic review and showed, with a very low quality of evidence, that music may reduce state anxiety levels on patients during root canal treatment.

Investigation of the effect of music listened to by patients with moderate dental anxiety during restoration of posterior occlusal dental caries

OBJECTIVE

The aim of this randomized controlled study was to investigate the effect of music therapy during restorative dental treatments on patients with moderate dental anxiety.

MATERIALS AND METHODS

Seventy patients were determined to have moderate dental anxiety by the Modified Dental Anxiety Scale (MDAS) and were divided randomly into two groups (n = 35). The first group did not listen to music during their restorative treatment (control group), and the second group listened to music of their choice (experimental group). Systolic blood pressure, diastolic blood pressure, heart rate, oxygen saturation, and body temperature were measured three times for each patient: once before the treatment, once after their dental caries were removed, and once at the end of the treatment. Salivary cortisol samples were taken from each patient before and after the treatment. The MDAS was re-administered to the patients at the end of the treatment, and the data were analyzed statistically.

RESULTS

Only the diastolic blood pressure (P = 0.042) and the MDAS scores of the experimental group (P = 0.001) were significantly lower than the control group at the end of the treatment.

CONCLUSION

While music listening did not have an effect on the physiologic parameters of the patients during restorative treatment, it decreased the MDAS scores of the patients.

CLINICAL RELEVANCE

Although music therapy did not affect the physiological parameters during the restorative dental treatment, it may help to reduce patients' self reported anxiety level.

Efficacy of Music Intervention for Dental Anxiety Disorders: A Systematic Review and Meta-Analysis

Objective To evaluate the effectiveness of music therapy for dental anxiety disorders. Methods In order to gather clinical randomized controlled trials comparing the effectiveness of music interventions to traditional oral manipulation in patients with dental anxiety disorders, computer searches of the electronic databases of Wanfang, CNKI, VIP, PubMed, Web of Science, ScienceDirect, Cochrane library, Scopus, and CINAHL were conducted. The search period covered from 23 December 2022, through to the development of the database. The Cochrane Handbook was used to assess the quality of the included literature, and two researchers independently conducted the literature screening and data extraction. Stata 17.0 and RevMan 5.3 were used to conduct the meta-analysis. Results The preoperative baseline levels of the music intervention group were similar to those of the control group (p > 0.05), according to the meta-analysis, and music intervention significantly decreased heart rate (I² = 81.2%, WMD (95% CI): -7.33 (-10.07, -4.58), p < 0.0001), systolic blood pressure fluctuations (I² = 85.6%, WMD (95% CI): -6.10(-9.25, 2.95), p < 0.0001), diastolic blood pressure (I² = 79.7%, WMD (95% CI): -4.29(-6.57, -2.02), p < 0.0001) fluctuations, anxiety scores (I² = 19.6%, WMD (95% CI): -9.04(-11.45, 6.63), p < 0.0001), and pain scores (I² = 32.7%, WMD (95% CI): -7.64(-9.43, -5.85), p < 0.0001), as well as significantly lowered anxiety and pain levels and raised patients' cooperation rates (I² = 0%, OR (95% CI): 3.03(1.24, 7.40), p = 0.02). Conclusions Music interventions are effective for dental anxiety disorders, but given the limitations of the study, more multicenter, large-sample, high-quality randomized controlled trials are needed to further validate the findings and obtain more objective and reliable clinical evidence.

Bioaerosol distribution characteristics and potential SARS-CoV-2 infection risk in a multi-compartment dental clinic

Dental clinics have a potential risk of infection, particularly during the COVID-19 pandemic. Multi-compartment dental clinics are widely used in general hospitals and independent clinics. This study utilised computational fluid dynamics to investigate the bioaerosol distribution characteristics in a multi-compartment dental clinic through spatiotemporal distribution, working area time-varying concentrations, and key surface deposition. The infection probability of SARS-CoV-2 for the dental staff and patients was calculated using the Wells-Riley model. In addition, the accuracy of the numerical model was verified by field measurements of aerosol concentrations performed during a clinical ultrasonic scaling procedure. The results showed that bioaerosols were mainly distributed in the compartments where the patients were treated. The average infection probability was 3.8% for dental staff. The average deposition number per unit area of the treatment chair and table are 28729 pcs/m² and 7945 pcs/m², respectively, which creates a possible contact transmission risk. Moreover, there was a certain cross-infection risk in adjacent compartments, and the average infection probability for patients was 0.84%. The bioaerosol concentrations of the working area in each compartment 30 min post-treatment were reduced to 0.07% of those during treatment, and the infection probability was <0.05%. The results will contribute to an in-depth understanding of the infection risk in multi-compartment dental clinics, forming feasible suggestions for management to efficiently support epidemic prevention and control in dental clinics.

Management strategies for adult patients with dental anxiety in the dental clinic: a systematic review

Anxiety is an adaptive emotional response to potentially threatening or dangerous situations; moderated by the sympathetic nervous system. Dental anxiety is common and presents before, during or after dental treatment. The physiological response includes an increase in heart rate, blood pressure, respiratory rate, and cardiac output. Consequently, extensive distress leads to avoidance of dental treatment and multiple failed appointments, impacting both oral and general health. Dental anxiety can generate a variety of negative consequences for both the dentist and the patient. Evidence-based strategies are essential for mitigating and relieving anxiety in the dental clinic. Psychotherapeutic behavioural strategies can modify the patient's experience through a minimally invasive approach with nil or negligible side effects, depending on patient characteristics, anxiety level and clinical situations. These therapies involve muscle relaxation, guided imagery, physiological monitoring, utilizing biofeedback, hypnosis, acupuncture, distraction and desensitization. Pharmacological intervention utilizes either relative analgesia (nitrous oxide), conscious intravenous sedation or oral sedation, which can have undesirable side effects, risks and contraindications. These modalities increase the cost and availability of dental treatment.

The Effect of the Dreamer Spiritual Therapies on Saliva Cortisol Hormone and Pain Score Patients in the Intensive Care Unit: A True-experimental Study

BACKGROUND: Patients’ conditions can worsen if stress and pain are not appropriately managed. Conventional therapy ignores psychological and spiritual aspects. Both influence the body’s response to various stimuli. AIM: This study aimed to assess how Dreamer’s spiritual therapy can affect the cortisol and pain in the intensive care unit (ICU) patients. METHODS: It involved 86 ICU patients in a true-experimental study. Respondents were divided into the intervention and the control group randomly. The intervention group received Dreamer spiritual therapy (DST) for 30 min but not for the control group. Saliva samples and pain scores were taken from both groups before and after treatment. The comparison of two groups cortisol decreases using Wilcoxon test. Differences in pre- and post-pain scores in each group were analyzed using paired t-test. RESULTS: According to Levene’s test, the two groups were homogeneous (p > 0.05). The Wilcoxon test revealed a statistically significant difference in cortisol level reduction between the intervention (3.88 ng/mL) and control (3.82 ng/ml) groups (p = 0.024), with a large effect size (Cohen’s d value = 59.5). The paired t-test revealed a statistically significant decrease in the intervention group’s pain score from 2.6 to 1.95 (p = 0.001), with a moderate effect size (Cohen’s d value = 0.49). The control group’s pain score did not significantly decrease (p = 0.75). CONCLUSIONS: A DST is effective in reducing salivary cortisol levels and pain scores of ICU patients.

Effects of music listening to reduce preprocedural dental anxiety in special needs patients

BACKGROUND AND PURPOSE

Dental anxiety is particularly problematic for individuals with Intellectual and Developmental Disabilities (IDD), resulting in a greater reluctance to undergo dental procedures and exacerbating poor oral health. Drugs commonly used for dental anxiety have undesirable side effects and may not be preferred by patients and guardians. Alternative methods for managing dental anxiety are needed. The purpose of this study was to evaluate the effects of music listening on anxiety levels of patients with IDD awaiting dental procedures.

MATERIALS AND METHODS

A convenience sample of 15 patients with IDD listened to piano music for 10 min before scheduled outpatient dental procedures. Preprocedural dental anxiety levels as measured by Revised ADAMS scores, pulse rates, and blood pressures were compared pre and post music listening. Participants' premedication requirements for the procedure with music listening was compared to their respective previously scheduled procedure with no music listening.

RESULTS

Post music listening, patients demonstrated reduced anxiety levels as evidenced by lower Revised ADAMS scores (p = 0.001), mean arterial pressures (p = 0.09), pulse rates (p = 0.02), and reduced premedication requirements.

CONCLUSION

Study results suggest that music listening offers an effective, nonpharmacologic alternative to reducing preprocedural dental anxiety in patients with IDD.

Minireview on the Connections between the Neuropsychiatric and Dental Disorders: Current Perspectives and the Possible Relevance of Oxidative Stress and Other Factors

Although the connections between neuropsychiatric and dental disorders attracted the attention of some research groups for more than 50 years now, there is a general opinion in the literature that it remains a clearly understudied and underrated topic, with many unknowns and a multitude of challenges for the specialists working in both these areas of research. In this way, considering the previous experience of our groups in these individual matters which are combined here, we are summarizing in this minireport the current status of knowledge on the connections between neuropsychiatric and dental manifestations, as well as some general ideas on how oxidative stress, pain, music therapy or even irritable bowel syndrome-related manifestations could be relevant in this current context and summarize some current approaches in this matter.

Effect of music at 432 Hz and 440 Hz on dental anxiety and salivary cortisol levels in patients undergoing tooth extraction: a randomized clinical trial

Objective

The aim of this study was to compare the effects of music at 432 Hz, 440 Hz, and no music on the clinical perception of anxiety and salivary cortisol levels in patients undergoing tooth extraction.

Methodology

A parallel-group randomized clinical trial was conducted. Forty-two patients (average age: 23.8±7.8 years, 27 women) with a moderate level of anxiety were distributed in three groups: use of music for 15 minutes at a frequency of 432 Hz (n=15), at 440 Hz (n=15) and a control group without music (n=12). The CORAH Dental Anxiety Scale and salivary cortisol levels, estimated by the solid phase enzyme-linked immunosorbent assay (ELISA), were measured and compared before and after the music intervention between groups (two-way ANOVA-Tukey p<0.05, RStudio).

Results

Significantly lower anxiety level values were observed at 432 Hz (8.7±2.67) and 440 Hz (8.4±2.84) compared to the control group (17.2±4.60; p<0.05). The salivary cortisol level at 432 Hz (0.49±0.37 μg/dL) was significantly lower than 440 Hz (1.35±0.69 μg/dL) and the control group (1.59±0.7 μg/dL; p<0.05).

Conclusion

The use of music significantly decreased clinical anxiety levels, and the frequency of 432 Hz was effective in decreasing salivary cortisol levels before tooth extraction.

Non-Pharmacological Interventions for Reducing Anxiety in Patients with Potentially Malignant Oral Disorders

Objective: To evaluate the effect of a music intervention upon anxiety, blood pressure, and heart rate in adult patients with potentially malignant oral disorders. Methods: Eighty consecutive adults (mean age: 68.3 years) consulting a Unit of Oral Medicine (Murcia Spain) were randomized to a study group (n = 40) that listened to music through headphones during 10 min or to a control group (n = 40). Corah’s dental anxiety score, blood pressure, heart rate, oxygen saturation (oximetry), skin temperature, and salivation were recorded at different timepoints before and after patient consultation. Results: Significant pre- versus post-consultation reductions were observed in blood pressure (p < 0.001) and heart rate (p < 0.001), though not in temperature, salivation, and oxygen saturation (p > 0.05). There were no significant differences between the study group and the controls (p > 0.05). Conclusions: The applied music intervention had no apparent effect upon anxiety. Further studies using different music intervention strategies and/or analytic parameters are needed to explore the benefits of this approach to decreasing anxiety.

Effect of music therapy on anxiety levels on patient undergoing dental extractions

BACKGROUND AND AIMS

Dental anxiety has been found to be a significant problem faced by patients undergoing extractions. Anxious patients tend to avoid dental care ultimately leading to complications. Treatment of anxious patients can be very challenging to the dentists, prolonging the treatment duration. There has been various methods to reduce anxiety of which non pharmacological ways include music and aroma therapy. Music has been known to reduce fear, stress and is a form of meditation and relaxation. Hence effect of music on the reduction of anxiety levels for patients undergoing extractions were assessed. The aim of this study is to assess the effect of music therapy on dental anxiety levels of patients undergoing extractions.

METHODS

50 patients visiting the outpatient department of Saveetha Dental College for dental extractions were randomly selected and allocated to Test group and Control group. The test group (N = 25) were subjected to music during extractions and Control (N = 25) were not exposed. Dental anxiety levels and hemodynamic changes namely systolic pressure, diastolic pressure and heart rate were assessed before and after extraction. The data was collected and analyzed using SPSS software with Paired t Test.

RESULTS

The study showed that the control population had elevated hemodynamic changes with regard to systolic, diastolic blood pressure and heart rate, of which the diastolic pressure rise was significant. In the test population, there was fall in the hemodynamic changes with respect to systolic diastolic blood pressure and heart rate, all of which were statistically significant. This was evident in the modified dental anxiety scale as well.

CONCLUSION

Music seems to be a psychological and spiritual way to calm oneself down. Hence music therapy can be used as an anxiolytic agent for stressful dental procedures.

Evaluation of salivary cortisol levels in relation to dento-maxillary prosthesis adjustment

PURPOSE

The purpose of this study was to investigate the influence of dento-maxillary prosthesis adjustment procedure on levels of salivary cortisol.

METHODS

Nine participants (six men, three women, mean age 65.9 years) took part in this study. Saliva samples were collected before and after dento-maxillary prosthesis adjustment during the four different visits. Free cortisol levels were determined using a salivary cortisol immunoassay kit (expanded-range high-sensitivity salivary cortisol enzyme immunoassay kit, Salimetrics). Besides, original self-report sheets, a 35-item food intake questionnaire, the University of Washington Quality of Life (UW-QOL) questionnaire version 4, and the Geriatric Oral Health Assessment Index (GOHAI) questionnaire were also administered. The changes of salivary cortisol levels were analyzed using 2-level multilevel linear regression, with adjustment for age, sex, and time. Wilcoxon signed-rank test was used to compare scores of the food intake questionnaire, UW-QOL questionnaire, and GOHAI questionnaire.

RESULTS

Salivary cortisol levels decreased significantly after carrying out the dento-maxillary prosthesis adjustment procedure. During the third adjustment, the salivary cortisol levels were significantly low. In addition, salivary cortisol levels of participants aged 70 years and over were significantly higher than other aged groups. The total scores for grade III-V of the food intake questionnaire increased significantly. Other questionnaires had a trend toward increasing scores, yet the differences were not significant.

CONCLUSIONS

Within the limitations of this study, the results suggest that a reduction in symptoms of discomfort may have an influence on the decrease of salivary cortisol levels in dento-maxillary prosthesis wearers.

The Level of Dental Anxiety in Students of the First Year of Studies From Lublin Universities

Dental anxiety is a very important factor affecting the efficacy of prevention, diagnosis and treatment of dental diseases, both in patients in the developmental age and in young adults. Anxiety is considered an emotional state with negative connotations. The aim of the study was to determine the level of dental anxiety in first year university students, the intent being to help to develop an individual treatment plan in this group of patients. The study involved 280 students including 230 females and 50 males. Of these, 122 patients were from the Medical University of Lublin, 79 from University of Life Sciences and 79 from University of Maria Curie-Skłodowska. The mean age of the study subjects was 21 years and 8 months ± 3,9 months. No differences in the level of dental anxiety between women and men were observed. The highest level of dental anxiety was observed among students of University of Life Sciences, while the lowest level was observed among students of the Medical University

The biological impact of listening to music in clinical and nonclinical settings: A systematic review

This systematic review explored the evidence base on the impact of listening to music on biological response in both clinical and nonclinical settings. Human studies exploring the effects of listening to recorded music on biological markers were included. Studies had to involve a non-music control condition. Keyword searches were carried out of five major databases (Cochrane/Wiley, PsycINFO, PubMed, Sage, and Science Direct) and bias was assessed using the Cochrane Risk of Bias Tool for Randomized Studies (RoB 2.0). Forty-four studies assessing the biological impact of music listening were identified: 27 in clinical settings and 17 in nonclinical settings. Eighty-two percent had examined the effects of short-term listening interventions, while the remainder had looked at longitudinal interventions. Thirteen of 33 biomarkers tested were reported to change in response to listening to music. The most commonly analyzed biomarker was the stress hormone cortisol, with half of clinical studies demonstrating a stress-reducing effect of music listening. Blood glucose was also found repeatedly to reduce in response to music listening. Many of the other biomarkers analyzed are also part of biological stress pathways, which suggests that the primary way by which music listening affects us biologically is via modulations of stress response. Effects were shown irrespective of genre, self-selection of the music, or duration of listening, although a majority did use classical music. The evidence base for understanding biological responses to music is still developing, but there is support for the application of listening to music, especially within clinical settings for stress reduction.

The role of stress hormones in dental management behavior problems

Dental management behavior problems are thought to be both multifactorial and multidimensional, consisting of physiological, behavioral and cognitive components. The stress response to pain or even the anticipation of distress initiates activation of the hypothalamic-pituitary-adrenal axis and causes an increase of cortisol and catecholamines. The literature on the role of hormones in dental management behavior problems comprises about one hundred papers, which have mainly been focused on this activation of the HPA axis in various situations in dental care. They have generally used salivary cortisol as a marker of the activity of the HPA axis, sometimes combined with salivary alpha amylase. Here we summarize the literature data on the role of stress hormones in dental management behavior problems.

The effects of music intervention on burn patients during treatment procedures: a systematic review and meta-analysis of randomized controlled trials

Background

The treatment of burn patients is very challenging because burn injuries are one of the most severe traumas that can be experienced. The effect of music therapy on burn patients has been widely reported, but the results have been inconsistent. Thus, we performed a systematic review and meta-analysis of randomized controlled trials in burn patients to determine the effect of music during treatments.

Methods

We searched a variety of electronic databases, including MEDLINE (via PubMed), EMBASE, Cochrane Library, Psychinfo, VIP Database for Chinese Technical Periodicals (VIP) and China National Knowledge Infrastructure (CNKI) for relevant trials on the basis of predetermined eligibility criteria. from their first available date through February 2016. Our search focused on two key concepts: music interventions (including music, music therapy and music medicine) and physical activity outcomes (including pain, anxiety, burn characteristics, dressing changes, wound care, debridement and rehabilitation). Two reviewers independently screened records and extracted data from all eligible studies. Statistical heterogeneity was determined using Q-test and the I² statistic. The endpoints included standardized mean differences (SMDs) and 95% confidence intervals (CIs). Publication bias was tested by Begg’s funnel plot and Egger’s test.

Results

A total of 17 studies met the inclusion criteria, for a total of 804 patients. A statistically significant difference in pain relief was demonstrated between music and non-music interventions (SMD = −1.26, 95% CI [−1.83, −0.68]), indicating that music intervention has a positive effect on pain alleviation for burn patients. The results indicated that music interventions markedly reduced anxiety in individuals compared to non-music interventions (SMD = −1.22, 95% CI [−1.75, −0.69]). Correspondingly, heart rate decreases were found after treatments that included music interventions (SMD = −0.60, 95% CI [−0.84, −0.36]).

Conclusion

In summary, a positive correlation was found between treatments including music interventions and pain alleviation, anxiety relief, and heart rate reduction in burn patients. However, additional high-quality studies with carefully considered music interventions for burn patients are still needed.

Electronic supplementary material

The online version of this article (doi:10.1186/s12906-017-1669-4) contains supplementary material, which is available to authorized users.

Musical Auditory Stimulation Influences Heart Rate Autonomic Responses to Endodontic Treatment

We aimed to evaluate the acute effect of musical auditory stimulation on heart rate autonomic regulation during endodontic treatment. The study included 50 subjects from either gender between 18 and 40 years old, diagnosed with irreversible pulpitis or pulp necrosis of the upper front teeth and endodontic treatment indication. HRV was recorded 10 minutes before (T1), during (T2), and immediately (T3 and T4) after endodontic treatment. The volunteers were randomly divided into two equal groups: exposed to music (during T2, T3, and T4) or not. We found no difference regarding salivary cortisol and anxiety score. In the group with musical stimulation heart rate decreased in T3 compared to T1 and mean RR interval increased in T2 and T3 compared to T1. SDNN and TINN indices decreased in T3 compared to T4, the RMSSD and SD1 increased in T4 compared to T1, the SD2 increased compared to T3, and LF (low frequency band) increased in T4 compared to T1 and T3. In the control group, only RMSSD and SD1 increased in T3 compared to T1. Musical auditory stimulation enhanced heart rate autonomic modulation during endodontic treatment.

Music interventions for dental anxiety

Anxiety is a significant issue in the dental care of adults and children. Dental anxiety often leads to avoidance of dental care which may result in significant deterioration of oral and dental health. Non-pharmacological anxiety management interventions such as music listening are increasingly used in dental care. Although efficacy for music's anxiolytic effects has been established for pre-operative anxiety, findings regarding the use of music listening for dental anxiety are inconclusive, especially for children. The use of music for passive distraction may not be adequate for children and highly anxious adults. Instead, interventions offered by a trained music therapist may be needed to optimize music's anxiolytic impact. Music therapy interventions are individualized to the patient's presenting needs and geared at enhancing patients' active engagement in the management of their anxiety. Interventions may include (i) active refocusing of attention, (ii) music-guided deep breathing, (iii) music-assisted relaxation, and (iv) music-guided imagery. In addition, music therapists can teach patients music-based anxiety management skills prior to dental treatments, offer them the opportunity to express emotions related to the upcoming procedure, and help them gain a sense of control and safety. Clinical guidelines for the use of music listening by dental practitioners are offered.