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. 2020 Apr 28;78(7):1136–1146. doi: 10.1016/j.joms.2020.04.034

Table 1.

UW OMS Surgery Acuity Scale

Tier Definition Location Examples (per CODA OMS Residency Training Categories) Action COVID-19 Testing
1a Low acuity surgery/healthy patient (ASA 1-2); outpatient surgery; not life-threatening illness OMS OP; HOPD; ASC Dentoalveolar surgery, asymptomatic; routine outpatient anesthesia; implant therapy; facial trauma (eg, arch bar removal); orthognathic surgery; cosmetic surgery; benign pathology; reconstruction; TMJ Postpone surgery NA
1b Low acuity surgery/unhealthy patient (ASA 3-5) OMS OP; HOPD; ASC Dentoalveolar surgery, asymptomatic; routine outpatient anesthesia; implant therapy; facial trauma (eg, arch bar removal); orthognathic surgery; cosmetic surgery; benign pathology; reconstruction; TMJ Postpone surgery or proceed with appropriate PPE if medical history necessitates procedure Negative within 72 hours
2a Intermediate acuity/healthy patient (ASA 1-2); not life-threatening but potential for future morbidity and mortality within 90 days; requires hospital admission OMS OP; HOPD; ASC Odontogenic infection; dental extraction, symptomatic; facial trauma (eg, minimally displaced fracture, simple mandible fracture, closed condyle fracture, zygoma, and/or zygomatic arch); benign pathology; reconstruction Postpone surgery (medical management) or proceed with appropriate PPE and consider the following: trauma: closed reduction, self-drilling screws, limit drilling; delay complex reconstruction where possible (eg, free flaps) Negative within 72 hours or consider rapid test
2b Intermediate acuity/unhealthy patient (ASA 3-5) Hospital Odontogenic infection; dental extraction, symptomatic; facial trauma (eg, minimally displaced fracture, simple mandible fracture, closed condyle fracture, zygoma, and/or zygomatic arch); benign pathology; reconstruction Postpone surgery (medical management) or proceed with appropriate PPE and consider the following: trauma: closed reduction, self-drilling screws, limit drilling; delay complex reconstruction where possible (eg, free flaps) Negative within 72 hours or consider rapid test
3a High acuity surgery/healthy patient (ASA 1-2); life-threatening and/or high potential for future morbidity and mortality within 90 days; requires hospital admission Hospital Odontogenic infection; facial trauma (eg, comminuted open fractures, panfacial injury, ocular emergency, soft tissue injury); head and neck cancer Proceed with appropriate PPE; if nonoperative therapy is equivalent to surgery (eg, radiotherapy), nonoperative therapy is recommended Negative within 72 hours or consider rapid test
3b High acuity/unhealthy patient (ASA 3-5) Hospital Odontogenic infection; facial trauma (eg, comminuted open fracture, panfacial injury, ocular emergency, soft tissue injury); head and neck cancer Proceed with appropriate PPE; if nonoperative therapy is equivalent to surgery (eg, radiotherapy), nonoperative therapy is recommended Negative within 72 hours or consider rapid test

Data adapted from American College of Surgeons.21

Abbreviations: AGP, aerosol-generating procedure; ASA, American Society of Anesthesiologists; ASC, ambulatory surgery center; CODA, Commission on Dental Accreditation; COVID-19, coronavirus disease 2019; HOPD, hospital outpatient department; OMS, oral and maxillofacial surgery; OP, office-based clinic/practice; PAPR, powered air purifying respirator; PPE, personal protective equipment; SC2, SARS-CoV-2; TMJ, temporomandibular joint; UW, University of Washington.

Appropriate PPE—for COVID-19 (SC2) test negative: standard precautions (ie, mask, face shield or goggles; gown, surgical cap, gloves); for COVID-19 (SC2) test positive or unknown: 1) for AGP—airborne respirator/contact precautions (PAPR, N95, eye shield or goggles, gown, surgical cap, gloves), trained observer for donning and doffing, negative pressure room, if available; 2) for non-AGP—standard plus droplet and contact precautions (surgical mask, eye shield or goggles, gown, surgical cap, gloves), trained observer for donning and doffing.