https://oak.chosun.ac.kr/handle/2020.oak/18957 Thu, 09 Apr 2026 19:06:06 GMT 2026-04-09T19:06:06Z https://oak.chosun.ac.kr/handle/2020.oak/19072 Title: A retrospective analysis of emergency room visits of oral and maxillofacial surgery patients in a tertiary care hospital Author(s): Si-yeon Park; Jae-min Song; Jun-ho Lee; Jae-yeol Lee; Dae-seok Hwang; Yong-deok Kim; Sang-hun Shin; Uk-kyu Kim Abstract: To investigate the present trends in the causes of patients visiting the emergency room of tertiary care hospital and were treated at the Department of Oral and Maxillofacial Surgery in order to prepare emergency room treatment guidelines. Increasing numbers of patients with damage to the oral and maxillofacial area visit the emergency room for treatment. This retrospective study analyzed 5,104 patients who had visited the emergency room of Pusan National University Yangsan Hospital and treated at the Department of Oral and Maxillofacial Surgery, between August 2012 and July 2017. The patients were divided into groups according to their injury types, such as trauma, infection, bleeding, temporomandibular joint disorders, and others. The number and frequency of patients in each type of injury group were analyzed as percentages (%) using SPSS 23.0 software. The male to female ratio of the patients visiting the emergency room was 1.98:1, with most patients aged below 10 years old. The majority of patients were in the trauma, infection, and bleeding groups. Fractures, especially mandibular fractures, were frequently present in the trauma group. In the oral and maxillofacial area, the results of the frequency, age, and type of injury treated in the emergency room from this study were not significantly different from those of other studies in the past. However, the reasons for the visit are still diverse and complex. Mon, 31 Dec 2018 15:00:00 GMT https://oak.chosun.ac.kr/handle/2020.oak/19072 2018-12-31T15:00:00Z https://oak.chosun.ac.kr/handle/2020.oak/19075 Title: The prevention of accidental aspiration or swallowing small instruments during implant treatment Author(s): Yong-seo Kim; Jee-young Kim; Yu-ri Heo; Mee-kyoung Son Abstract: The aim for this study was to investigate the risks of patients swallowing small instruments, such as Hexa drivers and healing abutments, during implant placement procedures. Various efforts have been put in place to prevent such accidents and to suggest several effective prevention methods for swallowing-accidents by introducing the prevention efforts that had been put or are waiting to be put. On November 12, 2018, we conducted an online questionnaire survey on 500 dentists, who are currently performing implant surgeries, with the assistance of www.dentphoto.com. In the result, approximately 19.2% of the respondents experienced the risk of their patients swallowing small instruments during implant placement procedures. A total of 79% of the respondents had an actual experience of such accidents. Nevertheless, many of the respondents answered that they were not taking even the easiest precautions for such accidents due to cumbersomeness and annoyingness. The risk of patients swallowing small instruments during implant placement procedures can be most effectively prevented by dentists and staff being aware of the risks of such accidents, and paying close attention to every step of the procedures. Many of the preventive measures that have been introduced so far, are found to be very effective for the prevention of such accidents. The newly-introduced efforts are also expected to be so. Mon, 31 Dec 2018 15:00:00 GMT https://oak.chosun.ac.kr/handle/2020.oak/19075 2018-12-31T15:00:00Z https://oak.chosun.ac.kr/handle/2020.oak/19071 Title: Characteristics of a deep crack occurred on intact molars without restoration Author(s): Soo-jeong Hwang; Min-seock Seo Abstract: The objective of this study was to investigate the characteristics of a deep crack in intact teeth with no restoration. The molars which were treated endodontically in the Department of Conservative Dentistry at Wonkwang University Daejeon Dental Hospital were screened and evaluated from January 2017 to June 2018. Clinical records of endodontically treated molars were reviewed and the molars diagnosed as cracked tooth were selected. From clinical records, only the cases where the crack line was confirmed to extend to the wall of access cavity were included in the study. Teeth with dental caries, restorations, or fractures at the time of diagnosis were excluded. General and pretreatment data of 85 cracked teeth were collected from the clinical records. The relatively deep cracks from intact molars occurred two times more in the maxillary molars than in the mandibular molars, and five times more in males than in females. Crack lines observed from access cavity wall were significantly different in maxillary and mandibular molars. The contralateral symmetrical molars of the cracked tooth had ‘crack or fracture’ or was ‘extracted’ at a higher rate than the occluding teeth. Deep cracks in intact molar had different characteristics from general cracks. In case someone has a cracked tooth, it may be important to check the condition of the contralateral tooth and consider the intervention. Mon, 31 Dec 2018 15:00:00 GMT https://oak.chosun.ac.kr/handle/2020.oak/19071 2018-12-31T15:00:00Z https://oak.chosun.ac.kr/handle/2020.oak/19073 Title: Masticatory muscle tenderness in burning mouth syndrome: A case control study Author(s): Hyang Yoon; Ji-won Ryu Abstract: The aim of this study is to evaluate the masticatory muscle tenderness in burning mouth syndrome (BMS) patients. A total of 102 patients (48 with BMS and 54 with non-BMS) that attended the Department of Oral Medicine (Chosun University Dental Hospital, Gwangju, Korea) from January 2018 to December 2018 were included in the study. The pain duration, pain perception using a visual analogue scale and presence of masticatory muscle tenderness was compared between the BMS and non-BMS group. About 85.4% of the BMS patients reported pain or tenderness when the masticatory muscle was palpated. There was a statistically significant association between the BMS symptom and masticatory muscle tenderness. This study suggests that the masticatory muscle tenderness could be related to the BMS. Further study is needed to explore the relationship between the BMS and temporomandibular disorder. Mon, 31 Dec 2018 15:00:00 GMT https://oak.chosun.ac.kr/handle/2020.oak/19073 2018-12-31T15:00:00Z