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明東星 최신의학사 1972 最新醫學 Vol.15 No.5
Replacement of streptococci by staphylococci as the prime pathogens in many types of infection has been a well-established fact for almost 15 years. It is interesting to observe that this is true only of dental infections which have spread beyond the tooth apex. Reported studies of root canal cultures continue to demonstrate 50% to 65% streptococcal growth, with a much smaller incidence of staphylococcal growth MATERIALS & METHODS Cultures were obtained from 74 patients who had acute dentoalveolar infections. These infections were periapical or periodontal ir origin and all bad spread beyond the alveolus to cause obvious erythematous fluctuant swelling in the buccal, sublingual, or submandibular areas. Pus swabs were inoculated on blood agar for growth and further identification. In order to secure the 0-streptolysin of streptococcus and the alpha-hemolysin of staphylococcus, Antistreptolysin "0" Titer (AST) and .Antistaphylolysin Titer (ASTA) were performed on 52 sera, taken from the patients. The results are summarized as follows: 1. Positive growth of pathogenic organisms was observed in 37 of 74 specimens. The other was reported as having no growth. Thirtyfive specimens revealed growth of only one pathogen, and 2 revealed mixed growth of two types of organisms. 2. The most common organism isolated was staphylococcus aureus and epidermidis (73%) 3. Nine percent of the cultures in this study of clinically significant oral infections revealed pure growth of gram negative rods. 4. Fourty-Six percent of the dentoalveolar infections showed marked elevation of AST. 5. In most of the dentoalveolar infections no elevation of ASTA was found.
明東星 최신의학사 1968 最新醫學 Vol.11 No.11
The author obtained the following. results through the studies on 1,228 roentgenographs of lower bilateral third molar regions of Korean youth; 1. The rate of :presence, of lower third molars was 75.3 per cent. 2. The period that crowns of mandibular third molars become completed was 17.0 years. 3. The period that roots of mandibular third molars become full length, was .22..1 years. 4. The period that apical closure of mandibular third molars become completed was over 26 years.
顎下腺에 發生한 腫상處置를 爲한 顎下腺切除手術 5例報告
金圭植,南日祐,鄭潤杓,金秀男,明東星 최신의학사 1971 最新醫學 Vol.14 No.7
The authors have diagnosed and treated the five cases of tumors originated from the submaxillary glands. The two cases of mixed tumors in the 28 and 44 years old korean women, two cases of the adenocar?cinomas in the 48 and 55 years korean men, and one case of plasmacytoma in the 49 years old korean man had been observed. 1. The two cases of mixed tumors have been eliminated by means of the total resection of the involved submaxillary glands. 2. The two cases of adenocarcinomas have been conquered by means of hemimandiblectomies and total excision of the involved submaxillary glands. 3. The rest of plasmacytoma have been treated by means of total excision of the involved submaxillary gland.