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Abstract

Objective: The purpose of this study was to analyze the Cone-beam computed tomograghy(CBCT) scan of endodontically treated maxillary first molars and investigate how second mesiobuccal (MB2) canal is treated, how the prognosis of mesiobuccal (MB) root is different compared to other roots and the prognosis factor on apical periodontitis. Methods: Subjects were endodontically treated maxillary first molars whose were collected from CBCT scans taken from January 2018 until December 2019. A total of 525 maxillary first molars were analyzed by an endodontist to determine the presence of the MB2 canal, the quality of the root canal filling, and the presence of apical periodontitis. The chi square test and Fisher’s exact test was used to examine the relationship between each variable. Results: MB2 canals were found in 46.3%, of which 76.5% were not treated. The more main canal of mesiobuccal root (MB1 canal) was well filled, the more significantly MB2 canal was well filled (p<0.001). The apical periodontitis of MB root was not related to the filling quality of MB1 canal (p=0.370) and was related to the filling quality of MB2 canal (p=0.004). The apical periodontitis of MB root was related to the quality of canal filling of MB2 canal and the apical periodontitis of DB and P root. Conclusions: It was found that the majority of MB2 canals were not treated. The apical periodontitis of MB root was analyzed to be related to the quality of canal filling of MB2 canal. The apical lesion of the MB root was not correlated with the treatment of the MB1 canal, but it was significantly related to the quality of filling of MB2 canal.

초록

SARS-CoV-2 감염으로 인한 COVID-19의 발생은 전 세계로 퍼져 보건의료 체계에 있어 대유행을 일으켰다. 이 질병은 호흡기 혹은 에어로졸을 통하여 전염되는 것으로 알려져 있다. 치과 치료의 특성상 체액, 혈액 및 타액을 포함한 에어로졸의 생성은 피할 수 없다. 본 연구는 여러 문헌 조사를 통하여 COVID-19의 치과 병원 내 잠재적 감염 위험을 조사하고, 병원 내 감염을 최소화하기 위한 방안을 모색하였다. 서울대학교치과병원은 질병관리본부의 가이드라인 및 이용가능한 문헌조사를 바탕으로 임상 상황에 대응하기 위한 대책을 마련했다. 감염 관리를 포함하여 환자 예약 및 일정 관리를 통한 병원 내 시공간적 분리에 대한 고려도 함께 이루어졌다. 치과 병원에서의 여러 대책들은 전염성 호흡기 질환에 직면한 여러 치과병원들이 참조할 수 있도록 하였다.

Abstract

The outbreak of COVID-19, caused by SARS-CoV-2 infection, has spread worldwide and resulted in a pandemic for health systems. The disease is transmitted via respiration as droplets or aerosol. Due to the nature of dental treatment, aerosols, including body fluid, blood, and saliva, are frequently produced in dental hospitals. The present study investigated the potential risk of nosocomial infection of COVID-19 in dental hospitals to provide recommendations in clinical situations. The Seoul National University Dental Hospital in Korea established a countermeasure to cope with the clinical situation based on The Guidelines of Korean Centers for Disease Control & Prevention (KCDC) for dental practitioners and the available literature. Notably, numerous considerations for patient reservation and schedule management are required for space separation in the hospital, including infection control. Experiences in dental hospitals in Korea would be referable for other dental hospitals facing this infectious respiratory disease.

초록

이 연구는 코로나19로 인한 치과의료기관의 피해와 관련 요인을 파악하여 치과계 보상방안을 마련하는데 객관적인 기초자료를 제공하고자 수행하였다. 대한치과의사협회 회원을 대상으로 1월부터 4월까지 코로나19로 인한 치과병·의원 경영 피해를 조사하여 그 결과를 분석하였다. 최종 3,189명의 응답을 분석한 결과, 전체 환자 감소율은 3월이 34.9%로 가장 높았고, 수입 감소율은 4월이 34.0%로 가장 높았다. 치과병·의원의 코로나19로 인한 환자 및 수입 감소율에 영향을 미치는 요인은 누적 확진자 수가 많고, 치과병·의원 수가 많은 지역일수록 코로나19로 인한 경영 피해가 더 컸고, 연차가 많고, 직원 수가 적은 치과일수록 코로나로 인한 경영 피해가 더 컸다. 정부는 의료기관의 특성에 맞는 기준을 정립하여 코로나19의 장기화로 인한 의료계의 붕괴를 방지하고, 향후 보건의료체계를 유지할 수 있도록 치과계에 맞는 지원을 제공해야 할 것이다.

Abstract

This study was conducted to identify the subjective damage caused by COVID-19 and its related factors. The study subjects were members of the Korean Dental Association (KDA). We investigated the damage to dental clinics and hospitals caused by COVID-19 between January and April 2020. After analyzing the final 3,189 responses, the rate of decrease in patients was the highest at 34.9% in March, and the rate of decrease in income was the highest at 34.0% in April. As a result of the multilevel analysis, the damage caused by COVID-19 was greater in regions with more confirmed patients, more careers, and fewer dental staff. The government should establish a compensation plan for hospitals and clinics to prevent the collapse of the medical system due to the prolonged COVID-19. In addition, support for dentistry should be provided to maintain the oral health care system in the future.

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Abstract

The aim of this article is to provide major announcements within the last decade or so about possible medical emergencies in dentistry. This would be helpful to improve the knowledge on first aid suitable for dental environment. Syncope was the most common medical emergencies in dentistry. Medical emergency situations can be divided into urgency and true emergency. Urgency situations can be solved well if proper treatment is taken. However, even in an urgency, if the correct treatment is not performed, it may soon turn into an emergency. With the joint efforts of the Korean Dental Anesthesiology Society and the Korean Cardiopulmonary Resuscitation Association, dental advanced life support (DALS) has been prepared since 2015. Through 17 training experiences until January 2020, scenarios and textbooks were developed. Dentists and dental care teams need to be prepared to strengthen their competence as professionals and to increase their team-level response capabilities.

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Abstract

As a dentist, we should be prepared for emergencies that can occur at any time in dental practice. In addition, we must be able to provide first aid to patients with the latest knowledge when an emergency actually occurs. It has been revised every five years since the American Heart Association published advanced cardiovascular life support (ACLS) guidelines. The current final guideline is the 2015 version. It is expected that the 2020 version will be released around the winter of 2020. Therefore, at this point, the latest version (2015 ver.) will be important. Many changes were made from 1995 to 2015. I would like to summarize the parts of the revised parts that remain important.