• 대한치과보존학회:학술대회논문집
• /
• 대한치과보존학회 2002년도 추계학술대회
• /
• pp.721-721
• /
• 2002

For about half a century. dental implants made of titanium have developed as a method of restoration for the tooth loss. In these days. the titanium implants seem to be considered as the alternative for the conventional prosthodontics. But its hard to say that the titanium implants are superior to the treatments that preserve the natural tooth. As this is a general opinion among dentists. the implant will not be able to be the alternative for all the prosthetic treatments. Clinically, there are many causes for extracting tooth. The severe destruction of the tooth structure or periodontal diseases leads to inevitable tooth extraction. When the complete cure is doubtful because of narrow intraoral visibility and improper accessibility in approaching to the tooth and periodontal lesion, we. clinicians often inevitably extract tooth. Passive treatments like conventional restoration, curettage or surgical flap cant be the perfect treatments for the tooth that has subgingival root caries or severe periodontal diseases involved furcation. Many clinicians might have been forced to pull out the relatively healthy tooth by the difficulties of approaching to the lesions and poor prognosis. Though the intentional tooth replantation is performed sometimes. as it doesnt have enough scientific foundation. it has not been considered as a popular treatment method yet. I have been felt keenly the necessity of positive tooth preservation, so I have been attempting the treatment that has new concept. calling Natural Tooth Implantation (NTI) clinically. NTI differs from the tooth replantation in the goal for the treatment and biological healing process. Now. I confirm that NT! is a very positive and valid method of tooth preservation. Like you can get from the name. NTI is the dental implant procedure using natural teeth and similar to the healing process of the titanium implants in many aspects. I have been using biocompatible composite resin. DRM. with NTI and got affirmative clinical results from that. So I would like to introduce.roduce.

• 대한치과마취과학회지
• /
• 제12권3호
• /
• pp.183-191
• /
• 2012

In most persons with disabilities had poor oral hygiene because of less attention and ability to perform a dental care. So the increased prevalence and severity of dental disease were common oral state. Although most persons with disabilities need a adequate dental treatment, it is often very difficult to treat because of noncooperativity and involuntary muscle movements. Dental treatments under sedation and general anesthesia were make to provide a high-quality dental service because of decreased anxiety and fear associated dental treatment in persons with disabilities. The dental professionals must be able to select and apply the proper sedation methods in agreement with the characteristics of the disabilities, general conditions, sedation experience and capacity of dentist, type and time of dental treatment, equipments of dental clinic, consent of patient's protector. The proshodontic treatment procedures, such as abutment preparation, dental impression taking process, try-in process of prosthesis and adjustment of occlusion, are difficult even for patients without disabilities. Those procedures are more difficult to patients with disability because it's too hard to control breathing and muscle. In this report, we performed prosthetic dentistry procedures to three patients with disabilities under dental sedation and general anesthesia.

• 대한치과마취과학회지
• /
• 제10권2호
• /
• pp.209-213
• /
• 2010

Anxiety and fear is two main factors that keep patients from going to dental clinic. Especially, patients may feel implants operations are more traumatic. Intravenous conscious sedation for dental treatment can make patient comfortable and relaxable. Midazolam is more popular for sedation for dental treatment, but target-controlled infusion (TCI) of propofol and remifentanil is gaining wide popularity. A 54-year-old female patient who had severe dental phobia was referred to our dental hospital. She had past history of 2 times of hyperventilation and syncope during dental treatment. The patient showed a lot of dental anxiety and fear to dental treatments and stress reduction protocol was needed. We administered intravenous conscious sedation using target controlled infusion system with remifentanil and propofol. During sedation, we monitored the status of consciousness with bispectral index and vital signs. Dental treatment could be finished successfully without any problems.

• 대한소아치과학회지
• /
• 제51권3호
• /
• pp.229-244
• /
• 2024

This study aimed to evaluate various factors related to cooperation levels in pediatric dentistry and determine their correlation with children's cooperation during dental treatments. This study included one hundred children and their guardians who visited the dental hospital at the Chonnam National University. Children and their guardians completed surveys regarding dental fear, dental caries experience, dental treatment experience, temperament, and guardians' dental anxiety, as well as the background characteristics of the children. Based on these data, factors associated with children's cooperation during dental treatment were investigated. Dental fear, caries experience during the primary and mixed dentition stages, and temperament traits such as shyness and negative emotionality significantly impacted children's cooperation during dental visits, with higher levels of these factors corresponding to lower cooperation. The extent of dental experience also modestly influenced children's cooperation, with higher levels of cooperation observed in children with greater dental experience. Additionally, children's dental fear was strongly correlated with guardians' dental anxiety, increasing as guardians' anxiety levels increased. Twelve-year-old children exhibited significantly lower levels of dental fear compared to other age groups, and regardless of cooperation levels, injections (shots) were identified as the primary factor inducing dental fear among the children. To improve children's cooperation in pediatric dentistry, strategies should focus on alleviating their fears and adopting an individualized approach that consider their oral health status and temperamental traits.

• 대한장애인치과학회지
• /
• 제5권1호
• /
• pp.12-17
• /
• 2009

Background : To do dental treatments successfully for dentally disabled patients who are unable to cooperate to procedures needs deep sedation (DS) or general anesthesia (GA). But there are some difficulties in selecting DS because of some disadvantages such as airway problem etc. But, if we select appropriate cases, DS would be better than GA. Methods : We reviewed total 238 cases of patients who had received dental treatments under GA or DS at the clinic for the disabled in Seoul National University Dental Hospital from November 2007 to February 2009. To compare anesthesia condition between DS and GA, we reviewed preanesthesia evaluation sheet, anesthesia or sedation records and PACU sheets retrospectively. Results : The number of DS cases was 25 (11%) and that of GA was 218 (89%). To maintain DS, intravenous propofol was infused with syringe pump (100%), and sevoflurane (134 cases) or propofol (13 cases) were used for sedation induction. Mean total treatment time for DS was 36 min and 2 hour 25 min for GA. The recovery time at PACU was 44 min for DS and 80 min for GA. There were no severe complications in DS, but 18 cases showed nausea and vomiting in GA. Conclusion : Deep sedation for disabled dental patients should be selected for effective behavioral control in conjunction with general anesthesia, considering duration and pain-evoking potentials of dental treatment and type and severity of patients' disabilities altogether.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
• /
• 제44권5호
• /
• pp.242-247
• /
• 2018

Ameloblastoma treatment varies based on the clinical, histopathologic, and radiographic characteristics. Aggressive surgical treatments, such as marginal or segmental resection, have traditionally been implemented, but some conservative surgical methods are also being introduced, including decompression, enucleation, or curettage. The aim of the present study was to evaluate the possibility of applying these conservative surgical treatments to ameloblastoma and to analyze the prognosis of the procedures and their healing aspects. Among all patients who visited our clinic (Department of Oral and Maxillofacial Surgery, Kyung Hee University Dental Hospital at Gangdong) from 2009 to 2017, three who had undergone conservative surgery were recruited. One of these three patients underwent both excision of the lesion and an iliac bone graft during the same procedure. In the other two patients, due to the size of the lesion, decompression was performed to reduce the size of the lesion, and then conservative surgical treatments followed. As shown in the cases of this study, patients were only treated with conservative surgical methods, such as decompression or enucleation. During the follow-up period, there were no recurrences. In conclusion, the use of conservative surgical treatment in ameloblastoma can be a reliable, safe, and successful method.

• The Journal of Advanced Prosthodontics
• /
• 제1권2호
• /
• pp.91-96
• /
• 2009

STATEMENT OF PROBLEM. The aim of this study was to study the effects of various surface treatments to a titanium surface on the expression of Runx2 in vitro. MATERIAL AND METHODS. Human Osteosarcoma TE-85 cells were cultured on machined, sandblasted, or anodic oxidized cpTi discs. At various times of incubation, the cells were collected and then processed for the analysis of mRNA expression of Runx2 using reverse transcription-PCR. RESULTS. The expression pattern of Runx2 mRNA was differed according to the types of surface treatment. When the cells were cultured on the untreated control culture plates, the gene expression of Runx2 was not increased during the experiments. In the case of that the cells were cultured on the machined cpTI discs, the expression level was intermediate at the first day, but increased constitutively to day 5. In cells on sandblasted cpTi discs, the expression level was highest in the first day sample and the level was maintained to 5 days. In cells on anodized cpTi discs, the expression level increased rapidly to 3 days, but decreased slightly in the 5-th day sample. CONCLUSION. Different surface treatments may contribute to the regulation of osteoblast function by influencing the level of gene expression of key osteogenic factors.

• 대한소아치과학회지
• /
• 제50권4호
• /
• pp.452-468
• /
• 2023

This study aims to investigate changes in dental service use among pediatric patients during the COVID-19 pandemic. The analysis was performed by collecting information about the number of visits, age, gender, diagnoses, and treatments for patients at the Pediatric Dentistry Department of Seoul National University Dental Hospital from January 2017 to December 2022. Compared with the period from 2017 to 2019, the total number of visits decreased during the COVID-19 pandemic, with a substantial decline in 2020. Patients in all age groups, except those aged 10 - 14, experienced decreased visits, and there was no significant gender difference. Z29.8 (need for other specified prophylactic measures) declined in all age groups, especially among those aged 0 - 4, except for those 20 years and older. K02.1 (caries of dentine) was sought by the age groups in the following order: 10 - 14, 15 - 19, 5 - 9, and 0 - 4 years, with the most significant decrease in the 0 - 4 years age group compared to others. K07.4 (malocclusion, unspecified) decreased in younger groups aged 9 and below but increased in older groups aged 10 and above. During the period from 2020 to 2022, preventive, restorative, pulp, and trauma treatments decreased, but surgical and orthodontic treatments increased compared with the previous three years. The use of sedation decreased and general anesthesia increased during COVID-19 compared to pre-pandemic. This study describes the impact of the COVID-19 pandemic on pediatric dentistry, making it a valuable reference for future pandemics.

• 대한치과마취과학회지
• /
• 제13권4호
• /
• pp.203-207
• /
• 2013

Aplastic anemia (AA) is a serious hematologic disease characterized by hypocellular bone marrow and deficient production of erythrocytes, granulocytes and platelets. Serious complications such as uncontrolled bleeding and bacteremia can occur. A case of severe AA are presented with dental considerations. A 4-year-old boy had been referred from Seoul National University Hospital for dental examination before the hematopoietic stem cell transplantation (HSCT). Treatments were planned under general anesthesia, due to the poor compliance. Following medical consult, dental treatments were performed after platelet transfusion and antibiotic prophylaxis. Postoperatively, neither significant bleeding nor complictation was observed. On the time of the treatment planning. the anesthesiologist and dentist should perform a complete hematological assessment. It is imperative not only platelet counts but also other leukocyte counts are under safe boundaries. It is mandatory to follow strict aseptic precautios for all anesthetic and surgical maneuvers. In severe thrombocytopenic patients, platelet transfusion should be considered. Also, it is recommended to establish a good oral hygiene.

• 대한치과의사협회지
• /
• 제58권6호
• /
• pp.354-363
• /
• 2020

Patients often seek consultation with dentists for their temporomandibular disorders (TMD), especially for pain. Acute pains refer to pains that are of short duration. Common acute TMD are arthralgia and local myalgia. Diagnosis should be made based on careful history taking and clinical examination. Most acute TMD are well controlled by education, cognitive awareness training, and conservative treatment. The aggressive and irreversible treatments should not be applied. Acute TMD should be controlled in the early phase so as not to be proceed to chronic pain.