All issues
Volume 48 (2010)
- Issue 6 Pages 653-
- Issue 5 Pages 559-
- Issue 4 Pages 481-
- Issue 3 Pages 367-
- Issue 2 Pages 211-
- Issue 1 Pages 1-
Volume 48, Issue 3
Displaying 1-11 of 11 articles from this issue
- |<
- <
- 1
- >
- >|
REVIEW
-
Taku FUJIWARA2010 Volume 48 Issue 3 Pages 367-373
Published: June 25, 2010
Released on J-STAGE: March 12, 2015
JOURNAL FREE ACCESSSafety management and infection control are important in the practice of pediatric dentistry. The safety management consists of crisis management (damage control) and risk management. Dental staff should acquire Cardio Pulmonary Resuscitation (CPR) skills. The BLS Healthcare Providers course designed by American Heart Association (AHA) is recommended. For advanced life support, the AHA PALS course is suitable for pediatric dentists.The word “Safety” is defined as “freedom from unacceptable risk”. Since “To err is human”, human error occurs without exception. We should perform risk management based on this concept.Infection control in pediatric dentistry should be based on the standard precaution procedure.Blood-borne pathogens such as hepatitis B, C, and HIV are important. In addition, vaccination against measles, mumps, varicella, and rubella is necessary for the protection of staff in pediatric dentistry.View full abstractDownload PDF (850K) -
Aya YAMADA, Tsutomu IWAMOTO, Takashi NAKAMURA, Satoshi FUKUMOTO2010 Volume 48 Issue 3 Pages 374-380
Published: June 25, 2010
Released on J-STAGE: March 12, 2015
JOURNAL FREE ACCESSTooth organs develop through the sequential reciprocal signaling interaction between ectodermalderived epithelial cells and cranial neural crest-derived mesenchymal cells. In recent advances in tissue engineering technology and developmental biology, a partial tooth regeneration has been demonstrated by using embryonic mouse dental epithelial and mesenchyme cells. However, no technology of tooth reconstruction has been identified to regulate tooth morphogenesis possessing positional characters of original tooth shape and size for its function. In this study, we focus on the roles of ameloblastin, one of the enamel matrix proteins, in dental epithelial cell differentiation into ameloblast and enamel formation. Ameloblastin regulates not only ameloblast proliferation and differentiation,but also enamel formation. In addition, ameloblastin controls the cell polarity of ameloblast, which go through multiple stages of differentiation to orchestrate enamel formation. The enamel epithelium does not exist in adult teeth, and currently there are not readily available sources of dental epithelial cells. This limitation, along with a lack of knowledge on mechanisms guiding the formation of enamel, impacts our capacity to develop strategies for the repair and regeneration of enamel.View full abstractDownload PDF (1218K)
ORIGINAL ARTICLE
-
Toshio ICHINOSE2010 Volume 48 Issue 3 Pages 381-387
Published: June 25, 2010
Released on J-STAGE: March 12, 2015
JOURNAL FREE ACCESSI investigated the clinical date of 122 traumatized anterior primary teeth of 92 children treated in Ichinose Pediatric Dental Office that developed pulp canal obliteration. After trauma, pulp canal obliteration was observed most frequently after 6 months～1 year by X-ray examinations. Under the observation there was no clinical anomaly in 97 teeth and there were clinical anomalies in 25 teeth. The most frequent anomaly was internal resorption that showed rapid progress without consciousness and the rapid and progressive internal resorption caused tooth fracture and pulp necrosis. Internal resorptions found early were treated very well by pulpectomy. Another anomaly was pulp necrosis without internal resorption and intervention of eruption of permanent teeth. There are some cases of early loss of primary teeth and disturbed eruption of permanent teeth, so we should observe anterior primary teeth with pulp canal obliteration up to the time when the permanent teeth erupt.View full abstractDownload PDF (1044K) -
Hideki KOBAYASHI, Junko MATSUYAMA, Tomoe MITOMI, Tomiko SANO, Katsushi ...2010 Volume 48 Issue 3 Pages 388-396
Published: June 25, 2010
Released on J-STAGE: March 12, 2015
JOURNAL FREE ACCESSThe Japanese government and communities have designed and tried many programs to develop and propagate dietary education ; of these, school-lunch programs are thought to be one of the most useful tools. The first aim of the present observational study was to clarify the different effects of Japanese staple foods such as noodles, boiled rice, and breads on masticatory parameters with regard to school-lunch intake. The next aim was to discuss the school-lunch menus, with reference to the above observational results and the replies submitted to a questionnaire by the general public.In the observational study, the subjects included six elementary school children aged 11 to 12years, who were recorded on videotape eating the six kinds of school-lunches. The school-lunches consisted of three kinds of staple foods with two different side menus. The masticatory parameters were calculated based on the recorded videotapes, and the differences among the school-lunches were statistically analyzed. The questionnaire survey roughly consisted of four categories on the schoollunch, and 170 adult cooperators submitted their replies.The observational study revealed that the staple foods included in the school-lunches had little effect on the masticatory parameters. According to the results of the questionnaire, more than 80% ofthe general public would like to have rice included in the menus three to five times per week, and approximately 65% expected the other menus two to four times per month.Since four of the present menus consisted of noodles and breads which presented a poor balance of nutrients, it was therefore indicated that the school-lunches should be primarily composed of boiled rice. More than half of the general public, however, sometimes hopes for menus other than the rice menus. From a masticatory perspective, there were few differences among the six menus. It may therefore be taken into consideration that menus with noodles or breads should be served a few times a month for school-lunches.View full abstractDownload PDF (971K) -
The committee on dental care of the Japanese Society of Pediatric Dent ...2010 Volume 48 Issue 3 Pages 397-408
Published: June 25, 2010
Released on J-STAGE: March 12, 2015
JOURNAL FREE ACCESSIn order to investigate the actual conditions of the first introduction of low aged patients to dental treatment, a questionnaire survey was conducted among 117 of pediatric dental specialists who belongto the Japanese Society of Pediatric Dentistry. 56 specialists (47.9%) answered the questionnaire and the following results were obtained through analysis of the data of 434 low aged patients.1)The main reasons of the selection of the dental clinic were ①because it was a pediatric dental specialist's clinic (33.2%), ②referal from another clinic (32.3%), ③introduction from friends or family members (31.3%). These results indicated the important role of the pediatric dental specialist.2)Parents accepted the crying of the child patient to some extent (50.7%) and hoped that the child patients would be treated even though they may cry (44.7%). 4.6% of the parents did not want their child to be treated when they cry.3)69.8% of the parents hoped to stay in the treatment room from the beginning to the end of the treatment.4)Reaction of the child patients was categorized “restrained because the patient moves (34.6%)”,“well behaved (31.6%)”, “cooperative even though the patient may cry or move (19.1%)” and “treated without restrain even though the patient cries and moves (14.7%)”.5)The pediatric dental specialists reacted mostly (71.9%) by “practicing the treatment following the planned treatment schedule with necessary reaction to the patients”.6)The numbers of the staff necessary for the treatment decreased in proportion to the age of the patient with an average of 2.7.7)The average treatment time was the longest for the four years old patients (42.8 min) and the average for all age groups was 38.6 min. The treatment time for the patients who were restrained because of crying and moving was longer than the patients who behaved well.8)The parents highly evaluated the treatment and the explanation by the pediatric specialists, which indicated the satisfaction of the parents whose child had treatment by the pediatric specialists.View full abstractDownload PDF (1799K) -
Satoko OTANI, Goh YOSHIMURA, Aya TSUBOI, Noriko KADOMOTO, Meiko TACHIK ...2010 Volume 48 Issue 3 Pages 409-413
Published: June 25, 2010
Released on J-STAGE: March 12, 2015
JOURNAL FREE ACCESSMany manuscripts have described the relationship between oral diseases and systemic diseases and the importance of the medical coalition. The purpose of the present study was to figure out the actual status of the young patients with systemic diseases in our clinic, and consider the role of pediatric dentistry in pediatric healthcare.The subjects were 373 young patients referred from medical departments to our clinic from April1996 to March 2009.The following results were obtained.1.The number of patients referred from medical departments in 2008 were about three times more than in 1996. Half of them were preschool-aged child.2.More than 50% of patients suffered malignant tumors especially leukemia, and 16% of patients suffered benign blood diseases.3.Oral examination was the dominant chief complaint in all patients. The patients asking for an oral examination were increased during the examination period.4.After stating our periodical round in the pediatric ward, the attention for oral care among medical staff has been increasing.View full abstractDownload PDF (918K) -
Mitsuho SAKATA, Jin ASARI, Kazuyuki ARAKI, Tomohiro OKANO, Mitsuko INO ...2010 Volume 48 Issue 3 Pages 414-427
Published: June 25, 2010
Released on J-STAGE: March 12, 2015
JOURNAL FREE ACCESSVolumetric Tomography (VT) is a new three-dimensional dental imaging technique, and the dose to the patient is relatively low. The purpose of this study was to compare the difference in the performance of proximal caries diagnosis using VT and intraoral radiography in primary teeth.101 proximal surfaces of 58 extracted human primary molars were used. Eleven base images were obtained by the VT imaging method to reconstruct VT slices. Intraoral radiographs were acquired using Kodak Insight film. Eight observers scored the presence or absence of proximal caries in the teeth using two imaging modalities. The true presence of caries and its depth were determined using the sectional images obtained in the ground truth using micro CT. Areas under the receiver operating characteristic (ROC) curves (Az) for each combination of observer and image modality were calculated and assessed using the paired t-test. Among the caries depth and modalities, observers' assessments were compared with the ground truth using the chi-square test.The mean ROC curve (Az) values were 0.828±0.026 for VT slices and 0.853±0.041 for intraoral radiographs for the detection of proximal caries in primary molars. The paired t-test showed no statistically significant differences between modalities. The chi-square test showed a statistically significant difference (p＜0.05) for VT slices in upper second primary molars with caries in internal 1/2 of dentin. On the other hand, the chi-square test showed a statistically significant difference (p＜0.05) in lower first primary molars, and a statistically significant difference (p＜0.01) on all surfaces for intraoral radiographs with no caries.Within the limited range of this study, VT slices provide a comparable diagnostic performance in detecting caries and in estimating its depth. Many studies will be needed to enhance the diagnostic accuracy by improving the mechanical procedures. And VT may be a feasible method for diagnosing caries depth.View full abstractDownload PDF (1123K) -
Prevention of late complications by electron beam therapyHanae KANAZAWA2010 Volume 48 Issue 3 Pages 428-438
Published: June 25, 2010
Released on J-STAGE: March 12, 2015
JOURNAL FREE ACCESSProgress of cancer therapies has prolonged the life expectancy of children with malignant tumors,which has led to the need for measures on late complications. In the oral area, anomalies such as tooth agenesis, microdontia, foreshortening of roots, delayed or arrested tooth development, and dentofacial deformities are reported as late complications after radiotherapy. The severity of these anomalies is related to dose of radiation and patient age. Therefore it is urgently required to develop a devise, attenuator, to protect nontarget growing orofacial tissues and organs during radiotherapy for children. In this study, we studied the efficiency of electron beam attenuation of candidate materials. The ability for effective attenuation defined decrement more than 99.50%. We found that a 2.0 mm thick lead plate shuts more than 99.54% of the electron beam. Among all combinations of the lead plate with dental materials (acryl, polycarbonate, ethylene-vinyl) which covered both sides of the plate we observed that 99.62% attenuation is obtained with 3.0 mm thick acryl on both sides. Calculations showed that the estimated electron beam exposure of the nontarget tissues of a patient wearing the attenuator with this combination is at maximum 0.17 Gy . These results suggest that wearing the attenuator during radiotherapy can support dental tissues and organs of the patient to follow normal developmental process.View full abstractDownload PDF (1827K) -
Kimiko SATO2010 Volume 48 Issue 3 Pages 439-447
Published: June 25, 2010
Released on J-STAGE: March 12, 2015
JOURNAL FREE ACCESSWe investigated the feasibility of introducing a saliva -based caries risk test into the oral health education in schools for 12- and 13-year-olds in Hiroshima prefecture, Japan. We also assessed theeducational benefits of the test in terms of the prevention of dental caries and the increase in student motivation. Results of our investigation suggested that the staff should be educated to reduce testing time, and they should conduct only three tests, i.e. those for the salivary secretion rate, salivary mutans streptococci and salivary buffering capacity on implementing a saliva test in the school setting.Because in this case the person being tested bears the cost of testing, it was necessary to obtain student and parent understanding on the effectiveness of the test and the enhanced oral health guidance resulting from its use. A survey of results after testing revealed a gender distinction in three variables : ‘I intend to chew more when I eat', ‘I would like to perform the saliva test on a regular basis'and ‘I would like to inform m y family about the function of saliva when I get home'. The results suggested the need to promote oral heath education in girls by creating a firm connection with their domestic life and in boys by using school education to focus their attention towards comprehension and oral health.View full abstractDownload PDF (876K)
CASE REPORT
-
Kazu HIGA, Atsuko BABA, Masao OZAKI, Yoichi KUBA, Ryuji UCHIDA, Wataru ...2010 Volume 48 Issue 3 Pages 448-453
Published: June 25, 2010
Released on J-STAGE: March 12, 2015
JOURNAL FREE ACCESSPrevention and treatment of anormalies of dentition is important for normal occlusal guidance in children.A girl, aged 10 years and 10 months old who visited pediatric dental clinic of Fukuoka Dental College presented the odontoma located above the impacted maxillary right permanent second molar byroutine panoramic radiographic examination.After removal of the odontoma, a surgical correction of the roated permanent second molar germ was done. Long-term continued observation was undertaken for about 6 years until the eruption of maxillary right permanent second molar.View full abstractDownload PDF (1118K) -
Rie TAKADA, Nao MUROFUSHI, Tomoyo FURUKAWA, Katsumi NAKAGAWA, Miyuki N ...2010 Volume 48 Issue 3 Pages 454-459
Published: June 25, 2010
Released on J-STAGE: March 12, 2015
JOURNAL FREE ACCESSIn the field of pediatric dentistry, we have encountered many children with trauma of deciduous teeth in clinical practice.In particular, the prognosis of tooth dislocation depends on children's cooperation and the presence or absence of anchorage for the injured teeth. Furthermore, it is necessary to help children's parents understand the influence of an injured deciduous tooth on a succeeding permanent tooth, and continue periodic management over a long period until the completion of permanent-tooth growth.In this case, we report an 11-month-old infant with traumatic dislocation of the bilateral lower primary central incisors in whom labial-side gingival resection at the site of the lower primary lateral incisors, which were in the process of growing, and anchorage-based reduction were performed to preserve the bilateral lower primary central incisors. To date, the course has been favorable.View full abstractDownload PDF (1062K)
- |<
- <
- 1
- >
- >|