• 구강회복응용과학지
• /
• 제30권4호
• /
• pp.324-328
• /
• 2014

한국인에서는 하악 소구치의 변이가 매우 드물게 나타나며, 변이는 하악 소구치 근관치료시 성형과 세정으로 자극원의 제거를 어렵게 하여 근관치료의 실패를 야기할 수 있다. 본 증례에서는 C형의 드문 근관 형태를 가지는 하악 제1소구치를 CBCT를 촬영하여 복잡한 치아의 내부 형태를 확인한 후, 치과용 현미경을 사용해 확대된 시야와 개선된 조명하에서 성공적으로 근관치료 하였다.

• Restorative Dentistry and Endodontics
• /
• 제16권1호
• /
• pp.226-235
• /
• 1991

Therapeutic use of antibiotics in the pulpal disease should reduce the clinical symptoms and pathogenic microflora in the pulp. The purpose of this study was focused on local drug delivery into the root canal in endodontic therapy. Monolithic films from polycaprolactone and polyethylene glycol preparations with minocycline were prepared, and then the antimicrobial effect of these films on necrotic canal was tested. A total 17 necrotized pulp teeth were sampled before and 1 week after insertion of film into the pulp. Bacterial culture were performed with anaerobical condition and seeded in the 5 selective and non - selective media for 7 days in $37^{\circ}C$ of anaerobic chamber. Bacterial identification were performed with Gram staining, biochemical test, and API kit There was significantly decreased of anaerobic and aerobic microflora of 13 among 17 patients after therapy. Among the identified microflora, Streptococcus species, black - pigmented species and Fusobacterium species were significantly reduced 1 week after treatment with local delivery antibiotics. Furthermore, clinical symptoms included in pain and local swelling were continuousely reduced after therapy. These results suggest that local drug delivery with minocycline is effeicient to treat the endodontic involved teeth for releasing clinical symptoms and microbiological shifting.

• Journal of Dental Anesthesia and Pain Medicine
• /
• 제18권1호
• /
• pp.41-46
• /
• 2018

Background: The purpose of this prospective randomized single-blind clinical trial was to evaluate the effect of tilting the head on the anesthetic efficacy of inferior alveolar nerve block (IANB) in patients with symptomatic irreversible pulpitis. Methods: Ninety-two patients were divided into two groups: the first group received IANB and the head was tilted in the direction of the block for 15 min, whereas the second group received IANB and the head was tilted to the opposite side. Access cavity preparation was initiated after 15 min. Success was defined as no pain or faint/weak/mild pain during endodontic access preparation and instrumentation. The anesthetic success rates were analyzed by Pearson chi-square test at 5% significance levels. Results: The same side position and opposite side position yielded 41% and 30% anesthetic success rates, respectively; there was no significant difference between the two sides. Conclusions: Relative head position has no effect on the anesthetic success rate of IANB.

• 치과방사선
• /
• 제15권1호
• /
• pp.41-49
• /
• 1985

The purpose of this study was to evaluate the initial and postoperative radiographic features of the endodontic treated teeth. The author examined the radiographs which comprise 114 teeth with 155 canals of 64 persons. The following factors were considered; Age, sex, tooth location, number of root canals, postoperative periods, initial diagnosis, and radiographic findings, postoperative radiographic findings. The apical levels of the root fillings were 76.8% to apex, 19.0% underfilling, 3.9% overfilling. The following results were obtained. 1. Of the 93 teeth which revealed initial periapical rarefaction, 66 teeth (71.0%) had showed complete bone healing, 19 teeth (20.4%) decreased rarefaction, 6 teeth (6.5%) no change, 2 teeth (2.2%) increased rarefaction after 20.0 months mean healing time. 2. 21 teeth which had no initial periapical rarefaction showed no occurrence of new periapical rarefaction. 3. Of the 66 teeth completely healed, 53 teeth (80.3%) had showed reappearance of lamina dura, 64 teeth (97.0%) reappearance of periodontal ligament space after 23.4 months mean healing time.

• Restorative Dentistry and Endodontics
• /
• 제40권1호
• /
• pp.1-13
• /
• 2015

Advancements in bio-ceramic technology has revolutionised endodontic material science by enhancing the treatment outcome for patients. This class of dental materials conciliates excellent biocompatibility with high osseoconductivity that render them ideal for endodontic care. Few recently introduced bio-ceramic materials have shown considerable clinical success over their early generations in terms of good handling characteristics. Calcium enriched mixture (CEM) cement, Endosequence sealer, and root repair materials, Biodentine and BioAggregate are the new classes of bio-ceramic materials. The aim of this literature review is to present investigations regarding properties and applications of CEM cement in endodontics. A review of the existing literature was performed by using electronic and hand searching methods for CEM cement from January 2006 to December 2013. CEM cement has a different chemical composition from that of mineral trioxide aggregate (MTA) but has similar clinical applications. It combines the biocompatibility of MTA with more efficient characteristics, such as significantly shorter setting time, good handling characteristics, no staining of tooth and effective seal against bacterial leakage.

• Restorative Dentistry and Endodontics
• /
• 제38권3호
• /
• pp.105-112
• /
• 2013

While it is reasonably well known that certain dental procedures increase the temperature of the tooth's surface, of greater interest is their potential damaging effect on the pulp and tooth-supporting tissues. Previous studies have investigated the responses of the pulp, periodontal ligament, and alveolar bone to thermal irritation and the temperature at which thermal damage is initiated. There are also many in vitro studies that have measured the temperature increase of the pulp and tooth-supporting tissues during restorative and endodontic procedures. This review article provides an overview of studies measuring temperature increases in tooth structures during several restorative and endodontic procedures, and proposes clinical guidelines for reducing potential thermal hazards to the pulp and supporting tissues.

• Restorative Dentistry and Endodontics
• /
• 제44권1호
• /
• pp.2.1-2.6
• /
• 2019

Objectives: The purpose of this research was to identify the top 10 most-cited articles on the management of fractured or broken instruments and to perform a bibliometric analysis thereof. Materials and Methods: Published articles related to fractured instruments were screened from online databases, such as Web of Science, Scopus, PubMed, and ScienceDirect, and highly cited papers, with at least 50 citations since publication, were identified. The most-cited articles were selected and analysed with regard to publication title, authorship, the journal of publication, year, institution, country of origin, article type, and number of citations. Results: The top 10 most-cited articles were from various journals. Most were published in the Journal of Endodontics, followed by the International Endodontic Journal, and Dental Traumatology. The leading countries were Australia, Israel, Switzerland, the USA, and Germany, and the leading institution was the University of Melbourne. The majority of articles among the top 10 articles were clinical research studies (n = 8), followed by a basic research article and a non-systematic review article. Conclusions: This bibliometric analysis revealed interesting information about scientific progress in endodontics regarding fractured instruments. Overall, clinical research studies and basic research articles published in high-impact endodontic journals had the highest citation rates.

• 대한치과의사협회지
• /
• 제54권2호
• /
• pp.142-148
• /
• 2016

본 연구의 목적은 특이한 C형 치근과 근관을 가지고 있는 상악 제 1대구치의 근관치료 증례를 콘빔단층촬영을 사용하여 진단 및 치료하였음을 보고하는 것이다. 본 증례에서는 특이적인 해부학적 근관 형태가 콘빔단층촬영을 사용하여 확인되었으며 비외과적 근관치료가 시행되었다. 촬영한 영상에서 모든 치근이 C 형태로 융합되어 있으며 독립적인 4개의 근관을 포함하고 있음이 관찰되었다. C형 근관계의 복잡성을 고려할 때 콘빔단층촬영이 적절한 근관계의 확인과 의원성 손상을 예방하기 위해 유용한 보조적 방법인 것으로 보여진다.

• 대한치과의사협회지
• /
• 제49권6호
• /
• pp.316-320
• /
• 2011

Neuropathic orofacial pain (NOP) is initiated or caused by a priomary lesion or dysfunction in the peripheral nervous system or the central nervous system. NOP is divided into paroxysmal and continuous by duration of pain. NOP is important for dentists, because they can occur after dental procedures, such as extractions, endodontic treatment, and dental implant insertion. Dentists should have concern about NOP, because it is difficult to diagnose and treat.

• 대한치과의사협회지
• /
• 제52권6호
• /
• pp.363-369
• /
• 2014

The cutaneous sinus tract is an uncommon disease. It is difficult to diagnose exactly of odontogenic cutaneous sinus tract for dentists or dermatologists except experienced clinicians or previously known clinicians. Many patients may be treated with repeated surgical excisions, biopsies, and antibiotic medications, but most of them could be frustrated with the recurrence of disease. There are several methods for diagnosis of odontogenic cutaneous sinus tract - such as GP cone tracing, conventional computed tomography(CT), periapical x-ray imaging, and cone beam computed tomography(CBCT). This case report describes the diagnosis and treatment of odontogenic cutaneous sinus tract that referred from medical doctors.