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The precedence and viability of yoga in the lives of D3-dental students, dental practitioners, and dental patients

Nishat, Roquaiya1; Bhuyan, Lipsa2; Nezam, Sumaiya1,; Singh, Sarita1; Jaiswal, Mishan Manohar1; Singh, Rajat3

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Journal of Family Medicine and Primary Care: December 2019 - Volume 8 - Issue 12 - p 3808-3813
doi: 10.4103/jfmpc.jfmpc_784_19
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The word “yoga” has been derived from Sanskrit word “yuz,” meaning “union” or “to unite.”[1] Yoga is an ancient Indian technique, philosophy, and practice that connects the body, breathing, and mind to energize and balance an individual as a whole.[2] It can be defined as a Hindu spiritual and esthetic discipline which includes breath control, simple meditation, and adoption of specific body postures for health and relaxation.[3]

Yoga has been found to improve cardiorespiratory efficiency, dexterity, strength, steadiness, stamina, flexibility, endurance, neuro-musculo-skeletal functioning, sleep quality, and cognitive functions. It also increases the alpha rhythm, interhemispheric coherence, and homogeneity in brain. Alteration in brain blood flow and brain metabolism and modulation of neuro-endocrine axis are also linked to yogic practices.[45]

The dental profession is not alien to occupational hazards such as musculoskeletal disorders, psychological problems, dermatitis, respiratory disorders, eye insults, infectious diseases, percutaneous exposure incidents, allergic reactions, radiation, and noise.[6] The literature shows ample evidence proving the efficacy of yoga in the management of several of these conditions.[17] This review emphasizes on the relevance of yoga in the dental profession, from the practitioners, students, and patients viewpoint. A thorough search of PubMed database and Google search engine was done to collect the data pertaining to the subject.

Yoga in Primary Health Care

Complementary and alternative medicine (CAM) are a set of diverse health practices and products that are typically not considered to be part of conventional medicine, and these techniques are nowadays being used for the management of a variety of conditions.[8] Yoga, a commonly used CAM technique, has been proven efficacious in the prevention and treatment of several chronic diseases including cardiovascular diseases, type II diabetes, musculoskeletal disorders, anxiety, depression, and other stress-related disorders.[9] Ponte et al. performed a quasi-experimental study to investigate the role of yoga in primary health care and concluded that yoga significantly improved the psychological quality of life.[10] Casey Health Institute, an integrative medicine center, in Maryland, USA, incorporated yoga therapy into primary care and have shown effective results.[11] Yoga has, thus, been proven to be an effective tool in primary health care.

Relevance of Yoga for Dental Students and Practitioners

Musculoskeletal disorders

Musculoskeletal disorders are injuries of muscles, ligaments, tendons, nerves, blood vessels, bones, and joints, which can result in pain in the neck, shoulder, arm, wrist, hands, upper and lower back, hips, knees, and feet.[12] Dentistry is considered to be a high risk profession in terms of acquiring musculoskeletal disorder due to ergonomic factors such as uncomfortable and static position with repetitive movements of arms and hands in combination with postural loads of upper back and head, wrong positioning of body, and limited body movement while performing the dental procedures for long duration of time.[1314] Moreover, the dental professionals tend to bend their backs, over flex and twist their neck, and raise their arms and shoulders in order to gain more visibility and accessibility which can result in overstressing of muscles and ligaments and pressurize the nerve roots, thus resulting in pain.[15] This may dwindle the quality and efficiency of one's practice.

Several studies have reported the incidence of musculoskeletal disorders among dental professionals. Hayes et al. reported a prevalence of general musculoskeletal pain ranging between 64% and 93% among dentists, dental hygienists, and dental students in which back and neck pain was the most common for dentists, while hand and wrist pain was more prevalent among dental hygienists.[16] According to Shams-Hossaini et al., the prevalence of musculoskeletal pain ranged between 0.5 and 70%.[17] In a scenario like this, yoga can come to the rescue. The literary evidence indicates the importance of yoga in the management of musculoskeletal disorders.

Monson et al. reported bi-weekly practice of yoga sessions to be beneficial in decreasing musculoskeletal pain in dental hygiene students.[18] Koneru and Tanikonda reported the prevalence of musculoskeletal pain in dentists to be 34.5% and also established a significant role of physical activity on the quality and quantity of work-related musculoskeletal disorders, in which yoga was found to be more effective than other modes of physical activities.[19] Deolia et al. studied the effect of yoga as a therapeutic aid for the treatment of physical hazards among dental interns aged between 21 and 24 years and reported reduction in backaches and headaches, thereby proving its efficacy.[20] According to a systemic review by McCaffrey and Park, yoga intervention was found to be moderately feasible and likely to be equal to or superior to exercise or usual care for reducing pain and pain medication use in various musculoskeletal disorders.[2] Chismark et al. reported that complementary and alternative medicine therapies like yoga helped in the management of chronic musculoskeletal pain, improved quality of life, reduced work disruptions, and, hence, enhanced career satisfaction.[21]

Yoga involves asanas (different body postures) and pranayamas (breathing exercises) which helps the mind to focus and achieve relaxation.[22] Yoga improves the body's flexibility, posture, range of motion and function, and also builds muscle strength which reduces strain on the back, neck, shoulders, muscles, and joints, thus helping in the management of musculoskeletal disorders.[151823] The varied practiced asanas improve blood circulation, increase the spine flexibility and rejuvenate it, thus reducing the incidence of backache.[24] Thus, practicing yoga on a daily basis can be beneficial for dental professionals and help in maintaining a pain and stress-free healthy lifestyle.

Stress and anxiety

Dentistry as a profession is considered to be quite challenging and stressful. Factors such as time and scheduling pressure, management of uncooperative patients, and highly technical and intensive nature of work may act as stressors for the dental professionals.[25] Dental education too has been found to be associated with noteworthy amount of stress, wherein stress has been found to increase with the year of study.[26] Various studies have reported that factors such as gender, year of study, marital status, first choice of admission, financial problems, living arrangement, examinations and grades, workload, and patients to be the stressors in dental students.[27] This stressful lifestyle could result in a lot of complications in the longer run which would adversely affect one's health. This alarming rise in stress in the dental community needs addressing and timely interventions to maintain the professionals physical, mental, and psychological health. The ages-old Indian practice of yoga can be effectively used in stress management and boosting the health conditions of an individual. Stress has been found to be inversely proportional to yoga.[1]

Streeter hypothesized that stress can induce autonomic imbalance, decreased parasympathetic activity, increased sympathetic activity, under activity of GABA system, and increased allostatic load. They also hypothesized that Yoga could reduce stress levels by stimulating the vagus nerve and reducing the allostatic load which in turn positively regulates the parasympathetic and GABA system.[28] Literary evidence also suggests that yoga down regulates the hypothalamic-pituitary-adrenal axis and also the sympathetic nervous system.[29] Stress reduction results in improved personal well being, reduced anxiety and depression levels, better sensory-motor coordination, and improved handgrip endurance, thus improving the overall personality and performance of an individual.[30]

Shankarapillai et al. assessed the efficacy of yoga in reducing the dental students anxiety prior to and during a periodontal surgical procedure and concluded that yogic breathing had a significant effect on reduction of stress and anxiety levels of the students.[31] Tripathi et al. conducted a study to establish preliminary evidence for the psychophysiological effects of yoga on stress in young-adult college students and concluded that yoga had positive effects on a psychophysiological level that lead to decreased levels of stress in college students.[32] Yogic practices can work wonders, especially in students, by improving their concentration, mental performance, emotional stability, and thus enhancing their academic performances and personality as a whole.

Cocchiara et al. published a systematic review to analyze and summarize the current knowledge regarding the use of yoga to manage and prevent stress and burnout in healthcare workers and concluded that yoga was found to be effective in the management of stress in healthcare workers and also stressed the necessity to implement methodologically relevant studies to attribute significance to such evidence.[33]

Relevance of Yoga for Dental Patients

Stress-related oral health conditions

Literary evidence suggests that stressed individuals report poorer oral health.[34] Shankardass hypothesized two pathways via which chronic stress could result in long-term oral disease development. First, stressed individuals tend to cope in unhealthy ways such as substance abuse and poor diet which can nurture oral diseases. Second, chronic stress could result in dysfunctional physiological systems which in turn would affect the underlying mechanism of disease progression.[35] Various stress-related conditions can affect the oral cavity including aphthous ulcers, myofascial pain dysfunction syndrome (MPDS), oral lichen planus, xerostomia, burning mouth syndrome, and bruxism.[36] Moreover, irregular eating habits could result in gastric refluxes which ultimately would result in dental erosion.[37] Xerostomia would culminate in halitosis, dental caries, and periodontal diseases, all of which affect the quality of life.

Practicing yoga has been effectively proven to reduce stress levels and induce the sense of calmness in individuals, which could help in the management of several stress-induced oral conditions. Khan et al. studied the effectiveness of yoga in patients with MPDS and compared the effects with ongoing conventional noninvasive treatment modalities. They reported that these yoga asanas in combination with conventional noninvasive therapies showed better results in MPDS patients as compared to either modalities alone.[38] Moreover, breathing techniques of yoga prevent drying of mouth and throat, which in turn would reduce the incidence of halitosis and dental caries. In addition, yoga asanas like forward bends, twists, and inverted poses have been proven to increase salivary secretion.[23] Garcia-Sesnich et al. reported yogic practice named Kundalini yoga had an immediate effect on salivary cortisol levels and perceived stress after 3 months of practice.[39] Singh et al. studied the effect of rhythmic breathing exercises of yoga in maintenance of oral health and gingival bleeding and reported significant reduction in debris, calculus value, oral hygiene, and gingival index.[40] Sudhanshu et al. incorporated yogic practices in the treatment of periodontal disease along with conventional dental therapy and reported reduced plaque index, mean probing pocket depth, clinical attachment loss, and bleeding on probing on combining the two techniques, thus concluding yoga accelerates the treatment outcomes by combating stress, which is a major factor affecting the treatment of periodontal disease.[41]

Inflammatory conditions

Inflammation can act as a crucial contributing factor for the progression of several diseases such as diabetes mellitus, hypertension, insulin resistance syndrome, coronary artery disease, Alzheimer's disease, and periodontal diseases via proinflammatory cytokines like IL-1, 1L-6, IL-8, TNF α, and CRP.[4243] Moreover, literary evidence suggests chronic inflammation to influence tumor promotion, survival, proliferation, invasion, angiogenesis, and metastases and is thus considered a risk factor for most of the cancers including oral cancer.[44]

Shete et al. studied the effect of yoga training on inflammatory cytokines and C reactive proteins in healthy adults exposed to occupational hazards and reported significant changes in cholesterol, LDL, IL-6, TNF α, and CRP level.[42] Rajbhog et al. evaluated the effect of yoga practices on selected proinflammatory and antiinflammatory cytokines among industrial workers and concluded that the yoga group had significantly lower levels of IL-1 β and increase in IL-10 as compared to control group, wherein, IL-1β is a proinflammatory cytokine and IL-10 an antiinflammatory cytokine.[45] Vijayaraghava et al. studied the effect of yoga practice on TNF-α and IL-6 levels and lipid profile and concluded that regular practice of yoga lowers basal TNF-α and IL-6 levels.[46] Yoga can reduce the oxidative stress, proinflammatory cytokine level, and also enhance immunity, which would aid in the reduction of chronic gingival and periodontal inflammation and, hence, improve the periodontal health.[41] Katuri et al. performed a cross-sectional pilot study to find the association of yoga practice with periodontal disease by measuring serum cortisol level and reported that individuals practicing yoga on a regular basis had low serum cortisol, anxiety, and depression levels, thereby better periodontal health.[47]

Orofacial development

Myofunctional therapy, an adjunct used in interceptive orthodontics includes facial and tongue exercises to promote proper tongue position, improved breathing, chewing, and swallowing. These, when used in early formative years, can aid in reducing the severity of malocclusion. Moreover, these exercises can also be used in the interception of deleterious habits such as thumb sucking, mouth breathing, tongue thrusting, and bruxism which could result in or worsen malocclusion.[47] In addition to these, myofunctional therapy also improves proprioception, tone, and mobility.[48] Various components of yoga including postures and breathing exercises can be effectively used in myofunctional therapies which would aid in proper orofacial development.[2349]


Yoga can also be helpful in the management of substance abuse such as tobacco and alcohol which can result in morbidity and mortality. Breathing exercises and meditation can help an individual to relax, and thus help in control the urges.[23] According to a review published by Jha et al., alternate nostril breathing can result in immediate reduction in the strength of urges to smoke.[50] Moreover, it also increases the mental and physical strength, both of which are required to manage the withdrawal symptoms.

Yoga helps in relaxation, which will help in reducing the anxiety of patients, and thus make them more cooperative. Kakodhar et al. reported reduction in anxiety levels of the patients after a 10-min chair side yoga session before extraction.[51] Similarly, a study by Lovas et al. stated that rapid relaxation by focusing on breathing for a period of 2–3 min before administering local anesthesia helped to reduce anxiety and also diminished the amount of anesthesia required.[52]

Kaswala et al. reported regular practice of yoga along with use of proton pump inhibitors (PPI) resulted in the improvement of severe symptoms of gastroesophageal reflux disease (GERD) which were initially refractory to PPI alone and also prevented the necessity of invasive procedures.[53] A very common oral manifestation of GERD is dental erosion, and yogic practices may help in the prevention of this regressive condition.

Villemure et al. suggested that regular and long-term yoga practice improved pain tolerance by dealing with sensory inputs and potential emotional reactions attached to those inputs leading to a change in insular brain anatomy and connectivity. They stated that these yoga practitioners could tolerate pain more than twice as long as matched controls and also had more gray matter in multiple brain regions.[54] Thus, yoga can be used in the management of painful conditions.

Yoga has also been found to have positive effect on cardiorespiratory fitness. Sovova et al. in their study found that those who practiced yoga for at least an hour a day showed better performance in spiroergometry under maximal exercise testing than the control group. The yoga group showed statistically significant higher maximum performance per kilogram and maximum oxygen consumption per kilogram per minute.[55] Hence, by maintaining the cardiorespiratory fitness, yoga also contributes to the overall well being of an individual.

Yogic intervention has been found to be efficacious in the management of psychophysiological reactions and stress in cancer patients.[5657] One of the most common cancer-related toxicity is insomnia, which may increase morbidity and mortality. Literary evidence indicates yoga to be effective for improving insomnia and sleep quality impairment in cancer patients and survivors.[57] Agarwal published a review of evidence-based research on the role of yoga in cancer care and concluded that yoga improved the physical and psychological symptoms, quality of life, and markers of immunity of the patients, thus providing a strong support for yoga's integration into conventional cancer care.[58]

Adverse Effects

Some yoga poses are too complex, require practice, and are not to be attempted by novices, or would result in injuries. Moreover, yoga can also cause injuries if done in a wrong way. Thus, adequate precautions and measures should be taken, Cramer et al. performed a systemic review of adverse events associated with yoga and reported fractures, ligament tears, joint injuries, fibrocartilageneous injuries, lumbar disc annular tears, and myositis ossificans to be the most common entities. In addition to these, glaucoma, orbital varices, peripheral neuropathy, stroke, transient headache, and pneumothorax were the lesser reported adversities.[59] Meshramkar et al. reported a case of dental erosion, wherein the patient vomited on an empty stomach to clean his gastrointestinal tract as a part of yoga for over 12 years.[60] Practices like these should be avoided as it will have a detrimental effect on the patient.


Yoga can be an effective alternative to combat the various occupational hazards associated with the profession of dentistry and it also has been proven to be beneficial for a variety of oral health-related conditions. Moreover, it also has a positive effect on psychological stress. An added advantage of practicing yoga is the fact that it is not meticulous and painstaking and can be easily done in small sessions. Therefore, practicing yoga every day for a small period of time would undo the damage caused by the strenuous lifestyle, rejuvenate an individual, and, hence, provide a holistic approach to life.

Financial support and sponsorship


Conflicts of interest

There are no conflicts of interest.


This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.

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Anxiety; ergonomics; musculoskeletal disorders; stress-related conditions; yoga

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