http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
安炯珪 大韓顎顔面 放射線學會 1981 Imaging Science in Dentistry Vol.11 No.1
The study was performed to investigae the thickness of lamina dura of the human teeth in periodontal desease, which obtained from the intraoral roentgenograms of the 122 cases taken by bisecting technic. All films were divided into the different ages, the different sexes, and the different location of the different teeth. The obtained results were as follows: 1.Compared with the normal teeth, the thickness of lamina dura in periodontal disease is increased in all of different ages, sexes and teeth. A Average thickness of the whole cases. Male Mx. teeth Mn. teeth 21-30 yrs.grp. 0.432mm 0.428mm 31-40 yrs.grp. 0.392mm 0.395mm 41-60 yrs.grp. 0.411mm 0.422mm Female Mx. teeth Mn. teeth 21-30 yrs.grp. 0.459mm 0.452mm 31-40 yrs.grp. 0.405mm 0.433mm 41-60 yrs.grp. 0.385mm 0.401mm 2.Generally, the alveolar crest portion is the thickest among the root sufaces, and midroot,apex followed, and the average thinckness of the posterior teeth is thicker than that of anterior teeth. 3.The mean value of the whole maxillary teeth is almost same as that of mandibular teeth. 4.On the whole cases, the differences of male and female is about 0.01mm, which is not a significant differences.
崔善媛,安炯珪 大韓顎顔面 放射線學會 1984 Imaging Science in Dentistry Vol.14 No.1
The auther studied clinically and radiologically 48 cases which had been diagnosed as TMJ ankylosis in SNUDH (1974∼1984). The purpose of this study is to analyse clinical features of TMJ ankylosis and to evaluate the effect of TMJ ankylosis on the growth of the mandible. The obtained results were as follows; 1. Total 48 cases of TMJ ankylosis patients consist of 23 males and 25 females. 65 percent of all cases of TMJ ankylosis occurred in patients between 1 and 10 years of age. The average age at the onset of ankylosis was 11.7 and average duration at the time of examination was 11.7 years. 2. Unilateral akylosis (81.3%) was more frequent than bilateral ankylosis (18.7%). 3. Traum a (57.9%) and infection (21.2%) were main etiology. 4. Inability to open the mouth (78.3%) and facial asymmetry (17.4%) were main chief complaints. 5. Mandibular morphology through radiographic features. (a) In TMJ ankylosis patients the ramus length of the ankylosed side was shorter than that of the non-ankylosed side. Comparing with the centrol group, ramus length of the each side was shorter than normal value. (b) The partial body length of the ankylosed side was longer than that of the non-ankylosed side. Comparing with the control group, partial body length of the each side was longer than normal value. Partial body length was related with antegonial notch depth. (c) Ratio of upper and lower ramus length at the level of mandibular foramen was smaller in ankylosed side than in non-ankylosed side. (d) Antegonial notch depth and ramus posterior contour depth were deeper in ankylosed side than in non-ankylosed side and those of bothsides were deeper than normal value. (e) Gonial angle in ankylosed side was larger than in non-ankylosed side and that in both sides was smaller than normal value.