Patient autonomy in dental medical decision making – demonstrating the need for shared decision making
Abstract Background: Evidence-based Dentistry (EBD), decision aids, patient preferences and autonomy preferences (AP) play an important role in shared decision making (SDM) and are useful tools in the process of medical and dental decisions as well as in developing of quality criteria for decision making in many fields of health care. However, there aren’t many studies on SDM and AP in the field of dentistry. This study aimed at exploring patients’ autonomy preferences in dentistry in comparison to other medical domains. Methods: As a first step, a consecutive sample of 100 dental patients and 16 dentists was recruited at a university-based prosthodontic clinic to assess and compare patients’ and dentists’ preferences regarding their roles in dental decision making for commonly performed diagnostic and treatment decisions using the Control Preference Scale (CPS). This was followed by a cross sectional survey to study autonomy preferences in three cohorts of 100 patients each recruited from general practices, a multiple sclerosis clinic, and a university-based prosthodontic clinic . A questionnaire with combined items from the Autonomy Preference Index (API) to assess general and the CPS to assess specific preferences was used in this process. Results: Dentists were slightly less willing to deliver control than patients willing to enact autonomy. Decisions about management of tooth loss were however considered relevant for a shared decision making by both parties. Highest AP was expressed by people with multiple sclerosis, lowest by patients in dentistry (CPS means: dentistry 2.5, multiple sclerosis 2.1, general practice 2.4, p=.035). Patients analysis showed considerable differences in autonomy preferences referring to different decision types (p<.001). More autonomy was needed for treatment decisions in comparison to diagnostic decisions, for trivial compared to severe conditions, and for dental care compared to general practice (all: p<.001). Conclusion: The study results showed substantial relevance of patient participation in decision making in dentistry. Furthermore, a need has been discovered to refer to specific medical decisions instead of assessing autonomy preferences in general.