Person-centered care model in dentistry

Background To achieve optimal health and oral health, the system of care must place a person and their social well-being at the center of decision making and understand factors spent outside the clinical settings, including individual behavior, context and lifestyle. Main text Person-centered care offers a unique and compelling opportunity for dentistry, and its practitioners, to improve quality of care and overall health outcomes. For decades, the dominant treatment modalities within dentistry primarily focused on a surgical, treatment-oriented approach as opposed to health promotion and improvement. However, new business and care models are disrupting the dental care system, and transforming it into one that is focused on disease management and prevention-oriented primary care that considers overall health and well-being. We proposed a person-centered care model to improve oral health as an integral part of overall health. The model identified three key players who act as change agents with their respective roles and responsibilities: Person, provider, and health care system designer. Conclusions While previous person-centered models in dentistry focused on the role of providers within the clinical setting, this work emphasizes the role of the care designer in creating an environment where both person and provider are able to communicate effectively and achieve improved health outcomes.


Background
Oral health disparity: a silent epidemic in the United States Dental caries, or tooth decay, is a transmissible yet preventable chronic disease that is prevalent worldwide and afflicts individuals of all ages [1][2][3]. Despite increased attention by health organizations and health care systems, caries remains mostly a silent epidemic with a significant impact on the nation's general health and well-being. Periodontitis, a result of inflammation in the gums and bone tissue that surround and support the teeth, is a second common chronic disease of the oral cavity. Almost half of adults, aged 30 and older, have some form of periodontal disease, while older people and those with a lower socio-economic status are disproportionately affected [4]. In the United States alone, more than $113 billion is spent on dental care annually [5]; more than an estimated $6 billion in productivity costs are lost each year due to employee absenteeism related to dental issues [5]. Consequences of poor oral health can also negatively influence speech, nutrition, growth and function, and social development, and is associated with difficulty in obtaining employment and underperformance in academic and employment settings [6][7][8][9]. National health expenditures are projected to continue to grow exponentially and will represent 19.9% of the United States gross domestic product by 2025 [10]. Oral disorders remain in the top ten most expensive conditions, when accounting for personal health care spending nationally ( Fig. 1) [10][11][12].
Person-centered care: from treating diseases to promoting health To achieve optimal oral health, the system of care must place a person and their social well-being at the center of decision making, including the understanding of factors spent outside the dental office [13]. Medical care, genetics, and individual biology account for less than one-third of all determinants of health; this means that better overall health lies in addressing additional factors including individual behavior, environmental and social circumstances of patients [14,15]. Therefore, context and lifestyle have significant roles in improving and maintaining optimal oral health.
To improve health outcomes for patients, the National Academy of Medicine (NAM; formerly the Institutes of Medicine) recognized the need for a patient-centered model of health care. The NAM thus defined the concept of patient-centered care as the provision of care "that is respectful of and responsive to individual patient preferences, needs, and values, and ensuring that patient values guide all clinical decisions" [16]. More recently, NAM focused on the integration of oral health and primary care as well as particularly challenging aspects of bridging oral health and primary care for populations with low health literacy [17]. The implementation of patient-centered care has subsequently demonstrated reductions in annual overall medical care charges [18], the promotion of effective change for patients and health care professionals, and improvements in patient satisfaction [19,20]. This model of care has also shown improvements in overall patient health when they transition from pediatric to adult primary care [21].
A related but distinct approach, person-centered care has since developed, marking a transition from the medical patient, to the whole person. This shift in focusing on the person rather than the patient is based on the "accumulated knowledge of people, which provides the basis for better recognition of health problems and needs over time," and helps to "facilitate appropriate care for these needs in the context of other needs" [22]. Person-centered care developed out of the nursing, gerontology and long-term care fields [23] as each recognized the growing importance of a person's living environment, resources and self-management capacity in predicting disease outcomes. This approach has resulted in improvements in addressing chronic conditions and increased patient satisfaction with care providers, as well as concurrent reductions in the likelihood of treatment failures [13].

Main text
Oral health as an integral part of overall health Person-centered care offers a unique and compelling opportunity for dentistry and its practitioners to improve the quality of care and overall health outcomes. For decades, the dominant treatment modalities in dentistry primarily focused on a surgical, treatment-oriented approach as opposed to health promotion and improvement. However, new business and care models are disrupting the dental care system, and transforming into one that is focused on disease management and prevention-oriented primary care that considers overall health and well-being.
Mounting evidence shows the bi-directional relationship between oral health and other systemic diseases like diabetes [24][25][26][27][28][29]. Studies have shown that patients with diabetes have increased prevalence, severity and accelerated progression of periodontitis compared to those without diabetes [25,27,28]. Also, uncontrolled periodontitis negatively affects glycemic control in patients with diabetes [26,29], and periodontal intervention may reduce medical costs and improve health outcomes among individuals diagnosed with type 2 diabetes [30,31]. Designing and implementing a person-centered care model in dentistry, dental professionals are supported by a system of care that reinforces collaboration with other health care professionals in improving the overall health and well-being of person with diabetes. Oral diseases also share common causes with other non-communicable and chronic diseases and risk factors, like high sugar intake and smoking. Despite the importance of oral health as an integral part of overall health, oral health is frequently omitted from disease management plans and health education due to the historic separation between medicine and dentistry. Multiple person-centered care models are used globally but they lack consensus concerning a basic definition of person-centered care within dentistry due to varied interpretations and applications of the concept [32,33]. Some suggest a conceptual-based approach while others propose a clinically-based model for person-centered care. Person-centered care and patient-centered care, though separate concepts, are used interchangeably without a clear distinction between the two [32][33][34]. Moreover, there is limited evidence demonstrating improved oral health outcomes with a person-centered approach in dentistry, compared to medicine [33,34].
To prevent any health risks originating from poor oral health and to improve overall health and well-being, a person-centered care approach that integrates oral health into overall health must be a critical element in both care design and delivery.
Proposed person-centered care model in dentistry: Person, provider, care designer Person-centered care starts with learning the contextual elements surrounding and shaping a person's behavior, decisions, and barriers to health. Then, the person-provider team applies that contextual knowledge to develop opportunities that will help attain the best health outcomes possible. Health care system designers should empower the person-provider team through the development and function of health care systems where this team can achieve improved health outcomes. Care designers are entities and systems rather than personnel who create infrastructure for the person-provider team. Examples include hospitals and clinics, community organizations, public or private medical and dental insurance entities, and the local, state and federal government. Their primary role is to design and operate a system of care that contextually assures the person-provider relationship forms in the most meaningful and efficient way. This model identifies three key players as change agents and the respective roles and responsibilities (Table 1) [35].
Within a person-centered care environment, a person is a recipient of care, and can act as a partner who co-designs his/her care delivery. Additionally, families and caregivers are often involved in the course of treatment and present during interactions with providers, and they can actively engage in care policy and practice Revise the plan and adjust as necessary to achieve meaningful yet practical goals in consultation with his/her provider.
Revise the plan together with the person to achieve the set goals.
Revise the design of the care system by incorporating the voices of persons and providers, as well as analyzes, shares and applies any emerging knowledge gleaned.
improvement through patient and family advisory councils. Providers include health care professionals, community outreach personnel, clinical and administrative staff, who interact directly or indirectly with the person to achieve a common goal: improving oral health and the overall health of the person. Depending on the nature of disease and health concerns, a multidisciplinary team of health professionals can interact with the person in both clinical and non-clinical settings. To empower this person-provider team, care designers must develop value-supported systems, encourage personal health ownership, and create financial structures and payment environments that incentivize health. Sophisticated payment design may include co-incentives for medical and dental teams when a person's health outcomes improve through application of person-centered medical and dental care. The evaluation of a person-centered care system's success can be aligned with major health quality measures already in use. These include measures endorsed by the National Quality Forum (NQF) outlined in Healthy People 2020, as well as other measures based on patient satisfaction surveys and quality of life assessments and evaluations. Additionally, care designers must also demonstrate that their person-centered care models directly improve population health and develop specific goals for improvement, especially for persons with chronic conditions. This framework is applied in Table 2 showing the utilization of this approach for a person with diabetes.
Other chronic conditions may also benefit from the application of this approach. Dental caries is an infectious disease and cariogenic bacteria can be transmitted from caregivers to young children; this early transmission increases children's risk for the disease [36]. Translating this scientific knowledge to practice, care designers are able to create systems of care that provide oral health education and treatment to pregnant women so they can modify their lifestyle and receive dental services prior to giving birth. Providers can address specific concerns related to pregnant women through this person-centered care approach, such as the infectious nature of oral disease, morning sickness, prevention of erosion and others. Providers can also consider treatment plan modifications and possible use of alternative medicines that are based on the unique physiology of pregnant women.
Person-centered care is not limited to the structural boundaries of the clinics. For children who reside in communities and with difficulty accessing oral health care, care designers can collaborate to offer alternative treatment modalities in non-traditional clinic settings, like school-based clinics or mobile dental services. These can be feasible options for individuals with a lack of structural and geographical access to dental services. With all three participants in this person-centered approach, patient health and safety are optimized and risks are minimized.

Optimization of a person's health: an integrated systems approach
Treatment and management of oral disease often requires coordination of care beyond the delivery of preventive and restorative treatments at the dental facility. Transportation, navigating care, and collaboration with other multidisciplinary team members to address both oral and overall health are also necessary [37]. Vital to success is ensuring a system design that respects the dignity of the person and allowing for structured access to desired and required health care.
Previous person-centered care models within dentistry owed lack of success in part to only a defined role of providers in clinical settings. Our model highlights the essential role of the care designer within the broader system to create environments and vehicles for providers to practice a person-centered approach in the most meaningful and effective ways. The person-centered approach in dentistry must include the care designer as an active and competent player for a sustained system benefit. Without support systems, coverage, or incentives, neither the person nor provider can pursue a person-centered care approach.

Future challenges
Existing challenges to person-centered care within dentistry are substantial and include limitations in health information technology, particularly a lack of medical-dental electronic record interoperability, and a lack of effective models for care coordination. There are insufficient sociodemographic information collection mechanisms in dentistry from either individuals or provider. By investing in, and strengthening existing health information technology platforms, and beginning the integration of predictive data analysis using consumer-based, sociodemographic data, care designers and providers can begin to overcome some of these inherent challenges that currently hinder widespread adoption of person-centered care models.
Designers should identify key stakeholders and partners who understand the person-centered care, the existing challenges encountered by patients, and who share a common vision to demonstrate the value found in utilizing this approach. Focused person-centered care demonstration projects can show improvement in health outcomes and care experiences in specific contexts. Thus, care designer's person-centered care models aim for adaptability, which means that inputs from the person-provider team can, and should, modify the model periodically and when needed.

Position oral health as primary care
The crucial final strategy for this person-centered approach in dentistry is to position oral health as an integral and necessary part of primary health care services and attainment. In recent years, multiple health care organizations and clinical leaders have recognized the important role oral health has in primary health care and highlight the integral part it plays in overall health [38][39][40][41]. In addition, recommendations have been established by the Health Resources and Services Administration (HRSA) that set forth competencies for inter-professional oral health practices [42]. Primary care teams have the experience, skills and close relationships with community members that allow them to accomplish effective prevention and disease management. A paradigm shift in the common perception of oral health care from a surgical treatment-oriented approach to one that is focused on disease management and prevention-oriented primary care is proposed, and this shift is reflected in both treatment and the existing financial models.

Conclusions
The impact of disparities in oral health and the historical chasm between medicine and dentistry are important considerations in realizing the person-centered care approach in dentistry. While previous person-centered models in dentistry focused on the role of providers within the clinical setting [32][33][34], this work identifies three key players: person, provider and the care designer.
To understand the contextual circumstances of individuals as well as that of practice management, the role of the care designer as a system enabler is essential, especially in creating an environment where both person and provider are able to communicate effectively. Aligning evaluation of person-centered care within other major national health measures improvements in health outcomes and cost-effectiveness to promote overall health and well-being of "a person" as well as a "population" can be realized.