All issues
Volume 49 (2011)
- Issue 5 Pages 439-
- Issue 4 Pages 305-
- Issue 3 Pages 203-
- Issue 2 Pages 155-
- Issue 1 Pages 1-
Volume 49, Issue 3
Displaying 1-9 of 9 articles from this issue
- |<
- <
- 1
- >
- >|
REVIEW
-
Mitsuko INOUE2011 Volume 49 Issue 3 Pages 203-207
Published: September 25, 2011
Released on J-STAGE: March 14, 2015
JOURNAL FREE ACCESSIn pediatric dentistry, it is important to control pain at the time of treatment to improve the cooperativity of children, and the use of local anesthetics is indispensable to give pain-free treatment.However, in the case of children, the injection for local anesthesia can easily be the object of fear, so how to give anesthetics with as little pain as possible can be the key to success of children's treatment.Several points for effective local anesthetic technique are : the use of topical anesthetics ; alleviation of visual fear ; technical devise at the time of insertion of the needle, method of drug injection(GSL method) ; and prevention of bite injury of soft tissue (especially lip).Also, with local anesthesia administered to children, problems are often present about safety of anesthesia and allergy. Results of a field survey shows that treatment using local anesthesia were administered to children of a wide range of age, and those who first experienced local anesthesia accounted for 16.2%. Occurrence rate of discomforts during and after treatment with local anesthetics were2.6%, respectively, but only several cases were suggestive of side effects of local anesthetics, all of them being not serious. Regarding the allergy to local anesthetics, the rate of positive reaction was relatively high with the children with whom our department had asked pediatric department to conduct allergy test. This suggests the importance of sufficient preliminary medical interviews and allergy tests as needed, and that coordination with medical department is desirable.View full abstractDownload PDF (858K) -
Masato SAITOH2011 Volume 49 Issue 3 Pages 208-214
Published: September 25, 2011
Released on J-STAGE: March 14, 2015
JOURNAL FREE ACCESSThe minimal intervention is crucial for the caries management in primary and immature teeth. This concept is based on understanding the biological approach to carious lesions, including modification of the oral flora, patient education, remineralisation of non-cavitated lesions, accurate diagnosis and minimal operative intervention of cavitated lesions.This reviewed paper gives an overview of the concepts of minimal intervention dentistry, describes techniques for a minimally invasive operative approach, in particular, the adhesive composite-resin restoration in primary and immature teeth.View full abstractDownload PDF (913K) -
The treatments with guidelines for the management of traumatic dental injuriesMikio KATO2011 Volume 49 Issue 3 Pages 215-230
Published: September 25, 2011
Released on J-STAGE: March 14, 2015
JOURNAL FREE ACCESSCurrently, there is no consensus among dentists regarding management of traumatic dental injuries.Therefore, it would be desirable to have a standard protocol for general practitioners which would help to manage dental trauma in children. Also, advances in any branch of dentistry cannot be expected unless cases in that particular field can be classified. From this perspective, we present the clinical examination form and classification chart used for trauma cases at the Department of Pediatric Dentistry, Osaka Dental University. Each classification is defined and treatment procedures for cases of each classification in accordance with the Guidelines for the management of traumatic dental injuries of the Japan Association of Dental Traumatology are described. It is uncertain whether the Guidelines for management of traumatic dental injuries really allow for treatment with sufficient basis in evidence. As there is limited evidence regarding treatment of dental trauma, we should concentrate on forming a consensus and create patient-oriented guidelines for presenting the clinical examination findings of trauma cases. We also hope that the Japanese Society of Pediatric Dentistry prepares Guidelines for the management of traumatic dental injuries at the earliest possible stage for its members.View full abstractDownload PDF (2557K) -
Kiyoshi ARAI2011 Volume 49 Issue 3 Pages 231-242
Published: September 25, 2011
Released on J-STAGE: March 14, 2015
JOURNAL FREE ACCESSThe purpose of this study was to investigate the effects of calcium carbonate (CaCO3) on the mineralization ability of human dental pulp (HDP) cells and rat molars.in-vivo HDP cellsHDP cells were treated with 1 mM, 100 mM, 10 mM and 1 mM of CaCO3 forupto12days.Nontreated cells served as a control. The cytotoxicity effect on HDP cells were not detected by treatment with each concentration CaCO3. The cell productivity on HDP cells were highest in culture s treated with 10 mM-CaCO3 group. We compared the alkaline phosphatase (ALP) staining and ALP activity of treatment with each concentration CaCO3 group and control. A larger number of 10 mM-CaCO3 group showed positive on ALP staining than other groups. The ALP activity was also highest in cultures treated with 10 mM-CaCO3 group. These results suggested that the mineralization ability of HDP cells were enhanced by treatment with 10 mM-CaCO3 group.in vitro rat molarsThe result of the CaCO3 treatment was then compared with Calvital. Micro computerized tomography (micro CT), hematoxylin and eosin stained (H & E) and immunoreactivity for nestin, dentin matrix protein-1 (DMP-1) and osteopontin (OPN) were also analyzed. The increment of dentine like calcified tissue in the pulp was observed micro CT and H&E stained. Immunoreactivity of nestin was earlier in the moderate inflammation in the CaCO3 groups than the calvital groups.In the CaCO3 groups, immunoreactivity of DMP-1 was identified beneath the amputated site after 7days, and which activity were increasing until 28 days, and OPN was observed in the dentine-like bridge at 28 days, which was also similar to the calvital groups. These findings suggested that primary processes of reparative dentinogenesis after pulpotomy with CaCO3 may involve natural pulpal wound-healing mechanisms that are similar to the restitution processes observed during pulpotomy with calvital. However, CaCO3 may prove to be less irritation and more calcified tissue formation than traditional Ca(OH)2 based materials when used as pulpotomy agent.View full abstractDownload PDF (1150K)
ORIGINAL ARTICLE
-
Jing YANG, Xianqi LI, Nan ZHANG, Tomohiro MIZUTANI, Akira NAKAYAMA, Ke ...2011 Volume 49 Issue 3 Pages 243-250
Published: September 25, 2011
Released on J-STAGE: March 14, 2015
JOURNAL FREE ACCESSThere are several risk factors for dental caries, and the living environment is especially important.People living in Shanxi province, China, have not only special food, culture and lifestyle habits, but a significant economic gap also exists between Shanxi and the coastal areas. Dental healthcare still has not improved enough for children. We infer that oral hygiene status will be different because of these area differences. To establish a preventive system for dental caries and to provide oral hygiene instruction for the Chinese children living in Shanxi province, a total of 890 kindergarten children (boys 513, girls 377) aged 3 to 5 were screened for this study. The caries prevalence rate and the caries experience were assessed by oral examination using World Health Organization criteria. The 4 stages of dental caries were determined by the Ministry of Health, Labour and Welfare criteria. Counting the number of teeth present, carious teeth and filled teeth, produced the following results.1.The caries prevalence rate was 69.5% in 3-year-olds, 76.0% in 4-year-olds and 80.3% in 5-yearolds. There was a trend to increase with age.2.Mean diseased, missing and filled teeth of 3-year-olds was 3.2, 3.8 in 4-year-olds and 4.7 in 5-year-olds. This trend also increased with age.3.Of children aged 3, 66.9% had untreated teeth, while for children aged 4 and 5 percentages were 68.6% and 71.1%, respectively. At each age group, many carious teeth had been left untreated.Compared with Japan, there were higher caries prevalence rates and a higher average number of carious teeth of each child in Shanxi, China. Furthermore, the results indicated that the percentage of filled teeth remains very low, and many carious teeth of the primary dentition had been left untreated.View full abstractDownload PDF (936K) -
Yukari OHARA, Goh YOSHIMURA, Toshiaki KONISHI, Chieko MITSUHATA, Katsu ...2011 Volume 49 Issue 3 Pages 251-258
Published: September 25, 2011
Released on J-STAGE: March 14, 2015
JOURNAL FREE ACCESSWith recently growing health consciousness, natural materials with pharmacological actions have been increasingly attracting attention. In the dental field, materials with desirable functions, such as the inhibition of caries, have been studied, and greater importance is attached to effects on cariogenic bacteria, mutans streptococci.In this study, we focused on grapes, which contain abundant physiologically active substances, such as triterpene and polyphenols, particularly strained wine lees (pomece). Physiologically active substances were extracted from pomece, and their inhibitory activities on Streptococcus mutans (S. mutans) glucosyltransferase and growth were measured. In addition, the compositions and structures of physiologically active substances contained in pomece were clarified to investigate the possibility of pomece serving as a caries inhibitor.Pomece extract exhibited GTase and cariogenic bacterial growth inhibitory effects. On component analysis employing thin-layer chromatography and HPLC-UV, a triterpene, oleanolic acid, was present at 10% in ethanol extract of pomece before purification and 90% in a fraction showing strong activity.It was clarified that pomece extract exhibited inhibitory activities on WIG synthesis and S. mutans growth due to it containing oleanolic acid. Although it is necessary to investigate the most effective method of utilizing the extract, these activities markedly varied depending on the oleanolic acid content, suggesting that pomece extract may be utilized as a caries inhibitor.View full abstractDownload PDF (837K)
CASE REPORT
-
Masami TAKEMURA, Ichiro NAKAJIMA, Yoshiko YOSHIDA, Hitomasa YOSHINO, T ...2011 Volume 49 Issue 3 Pages 259-264
Published: September 25, 2011
Released on J-STAGE: March 14, 2015
JOURNAL FREE ACCESSAn 8-year-old boy presented at the pediatric dental clinic at Nihon University School of Dentistry with the chief complaint of dental caries. The patient was cooperative throughout the course of treatment in the first three month, but later complained of stomachache and chest pains at the beginning of treatment, and became emotionally unstable. His cooperation became poor and his dental treatment could not be continued. In this same period he refused to attend school, and at 9 years of age was diagnosed as having ‘infant depression'. We discussed behavioral management for him with his psychiatrist and carried out his dental treatment under general anesthesia after informed consent. Subsequently, his condition improved with the psychiatric therapy and he was able to undergo normal dental treatment and could maintain good oral hygiene. We conclude that pediatric dentists should keep the possibility of ‘infant depression' in mind and that partnership with a psychiatrist is important for a good prognosis for children with depression.View full abstractDownload PDF (986K) -
Kyoko KIKUCHI, Haruko FUJITA, Akira YAMAGUCHI, Yuzo TAKAGI2011 Volume 49 Issue 3 Pages 265-271
Published: September 25, 2011
Released on J-STAGE: March 14, 2015
JOURNAL FREE ACCESSA case of palatal polyp was found in a 2-year, 6-month-old Japanese boy. Histopathologically, it was diagnosed as peripheral developing odontoma, which occurs rarely in the oral region.The findings were :Intraoral examinations showed a gingival-colored mass with a smooth surface, measuring 5×3×3 mm on the palatal mucosa adjacent to the upper central primary incisors. Radiographic examination revealed a small calcified structure in the upper right central primary incisor root region, just underneath the base of the palatal polyp. The mass and the small calcified structure were removed at the same time and the specimen was examined histopathologically.Within the polyp, cylindrical epithelium cells, reminiscent of ameroblasts, were present. They were surrounded by mesenchymal connective tissue beneath the mucous membrane. There was odontogenic epithelial proliferation and fibrous tissue hyperplasia, but inflammatory cells were not observed.The small calcified mass in the polyp had structures of enamel, dentin, cementium and pulp tissue,so it was suspected to be a supernumerary tooth. However, the odontogenic epithelium and calcospherites surrounding the calcified mass, consequently, led us to considered it to be a peripheral developing odontoma.After surgery, no sign of recurrence has been observed.View full abstractDownload PDF (957K) -
Tomoko ARIKAWA, Munetaka NAITOH, Masaki ITO, Aya IMAMURA, Takuma OKAMO ...2011 Volume 49 Issue 3 Pages 272-278
Published: September 25, 2011
Released on J-STAGE: March 14, 2015
JOURNAL FREE ACCESSA 7-year-old boy with delayed eruption of the right maxillary central and lateral incisors was examined using dental cone-beam computed tomography (CBCT). The axis of the lesion in crosssectional images was then perpendicularly adjusted using simulation software for dental implant treatment, and two-dimensional images were reconstructed at intervals of 30 degrees. The lesion appeared as a tooth-like body with a radiolucent space in the images. Positional relationships of the lesion to neighboring teeth and surrounding anatomical structures, such as the incisive canal, could be clearly observed in the images.These results suggests that images reconstructed using simulation software designed for dental implant treatment can supply useful information for diagnosis and treatment of conditions such as childhood odontoma in various dental clinics, in addition to dental implant treatment.View full abstractDownload PDF (1014K)
- |<
- <
- 1
- >
- >|