Sedation dentistry refers to the use of pharmacological agents to induce relaxation and often sleep in a patient prior to and during a dental appointment. It is also known as conscious sedation, where it is defined as "a technique in which the use of a drug / drugs produces a state of depression of the central nervous system enabling treatment to be carried out, but during which verbal contact with the patient is maintained throughout the period of sedation". The pharmacological agents used differ depending on patient, level of sedation desired and medical professional administering the sedation medications. The medications can belong to a class of drugs called sedatives, which exert their action by depressing the central nervous system, specifically those areas concerned with conscious awareness. Medications used to obtain sedation often include a benzodiazepine (i.e. alprazolam, triazolam, diazepam), opioids (i.e. fentanyl), dissociative (i.e. ketamine) and anti-histamines (i.e. hydroxyzine, Benadryl). Sedation dentistry is essential for children to be able to cope with traumatic procedures such as extraction, restorative procedures. Every practitioner should be aware of the viable and appropriate sedative measures while incorporating anxiety-reducing procedures.
Indication for Nitrous Oxide/Oxygen Inhalation Sedation
Applications of Nitrous Oxide Sedation in Dental Specialties
Pharmacology of Common Sedative Agents
Adverse effects of sedation dentistry
Safety protocols Adherence to safety protocols while performing sedative procedures in dentistry is crucial to ensure safe and effective sedation in dental care with minimal risks.
Regulatory standards Regulatory standards in sedative dentistry are vital in ensuring patient safety and it may vary by location and country. It requires dental facilities to meet specific criteria regarding training (ex: Basic Life Support), equipment and the handling of sedation agents, based on guidelines from professional organizations (ex: American Dental Association, American Society of Anesthesiologists), in which dentists must obtain specific permits or certifications from their country or state dental board in order to be qualified to administer different levels of sedation.
Sedation Dentistry in Special Populations & Clinical Scenarios Patients with special needs are individuals who require additional support due to medical, physical, mental, or psychological impairments that severely hinder their ability to perform essential activities in the usual way. The common clinical challenges in special populations include poor cooperation and compliance, often resulting from intellectual or mental disabilities that limit understanding of dental procedures and heighten anxiety and fear, leading to increased refusal of conventional treatment approaches. Therefore, sedation dentistry is often required to reduce anxiety and facilitate smoother delivery of dental treatment. Contraindication of sedation:
Patients with potential upper airway obstruction (such as PSN with severe cerebral palsy) Patients with severe systemic illness that compromise their respiratory or cardiovascular function. Patients taking long-term antipsychotic or psychotropic medications (such as PSN with schizophrenia or bipolar disorder) Patients with muscular dystrophy Patients taking a contraindicated drug such as diazepam
Clinical scenario (Korea) Source:
Trends in sedation and GA among special population 2007–2019 = involving 116,623 special-needs patients Sedation (SED): 136,018 cases performed on 69,265 patients. General Anesthesia (GA): 56,308 cases performed on 47,257 patients. 6-fold increase in sedation use from 2007 (~3,100 cases) to 2018 (~18,528 cases). Shows growing dependence on both SED and GA in managing dental care for special populations. Most common disability receiving sedation Attention Deficit Hyperactivity Disorder (ADHD) Indicates behavioural disorders are major drivers for choosing sedation Gender distribution: 64.36% male, 35.64% female -> male-dominant Includes a wide age range (children → adults) Used for patients with: Behavioral difficulties Mild intellectual delay Dental anxiety/phobia Most common disabilities receiving GA Most common indication: Phobia / severe dental anxiety among disabilitiy Also includes patients with: Severe intellectual disability Uncontrolled movement disorders Medical conditions requiring full airway control Higher complexity cases typically referred to hospitals with GA facilities Used when extensive treatment is required or patient cannot tolerate sedation Implications for sedation in special population ADHD dominance in sedation cases suggests the need for: Behavioural management strategies Tailored communication Caregiver involvement Demand for proper sedation guidelines and workforce training emphasized by the authors. Supports the idea that dental clinics must be prepared for an increase in special-needs patients requiring sedation References


