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Volume 50 (2012)
- Issue 5 Pages 367-
- Issue 4 Pages 275-
- Issue 3 Pages 161-
- Issue 2 Pages 161-
- Issue 1 Pages 1-
Volume 50, Issue 4
Displaying 1-8 of 8 articles from this issue
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ORIGINAL ARTICLE
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Miki KADENA, Tomomi SUGIYAMA, Aiko MENJYOU, Jin ASARI, Tarou KAMIYA, Y ...2012 Volume 50 Issue 4 Pages 275-282
Published: September 25, 2012
Released on J-STAGE: March 19, 2015
JOURNAL FREE ACCESSIn recent years, the number of pediatric patients with allergies is increasing, however, no predictive method or corresponding measurements of allergic reactions that occur in relation to dental treatments have been established. Our department performs allergy testing for pediatric patients with a severe allergy or multiple allergens by use of a questionnaire in cooperation with the Pediatric Department of Showa University of Medicine. Here, we report the current status of allergy testing for local anesthetics, which is routinely performed for pediatric patients with allergies at our university.1.The most common history was allergy to foods, which was noted by 34 patients. Many of those had an allergic reaction to eggs, milk, and peanuts. That was followed by bronchial asthma and atopic dermatitis.2.The most common reason to take the test was “having multiple allergens,” noted by 35 patients.3.Inallergytestingfor4commonlyusedlocalanesthetics, all patients reported an independent allergic reaction to at least 1 anesthetic agent, while only 1 had a reaction to all 4 anesthetics.It is difficult to precisely determine allergies to local anesthetics by a preparative medical interview. However, such an interview is important for effective treatment, and can provide benefits not only for dental therapy, but also subsequent medical care.View full abstractDownload PDF (757K) -
Mie SUZUKI, Takahisa TOYAMA, Toshiaki ONO, Osamu FUKUTA2012 Volume 50 Issue 4 Pages 283-287
Published: September 25, 2012
Released on J-STAGE: March 19, 2015
JOURNAL FREE ACCESSA number studies have been presented regarding various criteria related to resection in cases of frenectomy, such as age and lingual frenulum length. However, no concrete conclusions have been established. The authors conducted a field survey of 2,227 pediatric patients with various dental problems from 2008 to 2010, of whom 36 came to our hospital complaining of and were subsequently diagnosed with lingual frenulum anomaly. We noted the following findings. Patient age ranged from 0−10 years old, with 5 years the most common age at initial diagnosis. The ratio of males to females was nearly the same. The initial conditions were usually noticed by doctors or dentists, as opposed to at a regular annual examination or by parents. The most common symptom associated with lingual frenulum anomaly was impaired articulation. The most common age at time of resection was 5 years old. We performed a frenectomy for patients from 4 to 10 years old, while those under 4 years were advised to wait, with an Er : YAG laser resection method used with local anesthesia in most cases. The rate of patients who came to the hospital with a letter of reference was 66.7% and those were more likely to undergo resection treatment.View full abstractDownload PDF (753K) -
Youki OU, Takashi NAKANO, Shoichi SAKAKIBARA, Kazuo KATO, Osamu FUKUTA2012 Volume 50 Issue 4 Pages 288-296
Published: September 25, 2012
Released on J-STAGE: March 19, 2015
JOURNAL FREE ACCESSThe aim of this study was to investigate differences in chemical reactions during de- and remineralization of eroded enamel of deciduous and permanent teeth, as well as the effects of 950 ppmF sodium fluoride application. We extracted 20 deciduous molars and 20 permanent premolars from human subjects, and examined the rate of changes in tooth mineral content using a pH cycling method. The time period for each cycle was set at 22 hours. Enamel blocks were immersed in re-mineralizing solution for 2 hours at pH 7.0, then in de-mineralizing solution for 5 minutes at pH 3.0, followed by re-mineralizing solution for 6 hours 30 minutes at pH 7.0. This process was repeated 3 times for the non-fluoride-treated group. For the fluoride-treated group, immersion in a sodium fluoride solution (950 ppmF) for 3 minutes was added before the second re-mineralization step. To evaluate de- and remineralization, the rate of change (vol %) in mineral content calculated from the P concentration in each solution was used. Following are our results.1.A comparison of the rate of change in mineral content between deciduous and permanent teeth showed no significant difference in the non-fluoride-treated group. In contrast, a greater level of chemical reaction was seen in deciduous teeth during re-mineralization in the fluoride-treated group.2.The total rates of change in mineral content for both deciduous and permanent teeth showed a significant difference between the non-fluoride- and fluoride-treated groups. However, no significant differences between deciduous and permanent teeth were seen within each group.Although we used a pH 3.0 de-mineralizing solution with the supposition that tooth erosion would result, our findings revealed that application of a 950 ppmF fluoride solution before re-mineralization had no significant inhibition of de-mineralization related to tooth erosion in both deciduous and permanent teeth, suggesting that it is possible to stimulate re-mineralization, and maintain the balance of de- and re-mineralization.View full abstractDownload PDF (960K)
CASE REPORT
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Case ReportKeiji MASUDA, Shiho NAKAMURA, Yumiko MATSUISHI, Soichiro NISHIGAKI, Ha ...2012 Volume 50 Issue 4 Pages 297-303
Published: September 25, 2012
Released on J-STAGE: March 19, 2015
JOURNAL FREE ACCESSWe treated a 2-year-11-month-old Japanese boy with a gingival lesion including supernumerary tooth germ-like tissues. The initial physical examination found a 10×5×5 mm red sessile nodule in the lingual mucosa of the left first deciduous molar region of the mandible. The lesion showed no erosion, ulcer, or inflammatory signs, and X-ray imaging revealed no destructive findings in the deciduous teeth, tooth germs of the permanent successors, or bone. Based on these features, we suspected epulis and surgically excised the nodule.A microscopic examination of the excised specimen showed well-circumscribed dental germ-like structures in the submucosal layer, which were composed of undifferentiated mesenchyme of the dental papilla surrounded by columnar cells resembling pre-ameloblasts. No enamel or dentin formation was detected. These findings were most suggestive of supernumerary tooth germs. A peripheral developing odontoma was also considered a possibility, though a definitive diagnosis could not be made due to lack of enamel or dentin formation.The postoperative course was satisfactory and there was no recurrence of the lesion at a 4-year follow-up examination.View full abstractDownload PDF (1052K) -
Report of Two CasesSeizo TANASE, Kosuke TANASE2012 Volume 50 Issue 4 Pages 304-312
Published: September 25, 2012
Released on J-STAGE: March 19, 2015
JOURNAL FREE ACCESSWe report 2 cases in which orthodontic force did not induce tooth movement of submerged maxillary central incisors. A diagnosis of ankylosis was made in both and we utilized a subluxation procedure for the submerged incisors, which were pulled immediately after the procedure. In one of the cases, subluxation was performed in a single procedure, while that was done twice with a 1-month interval in the other. In both cases, slight tooth movement appeared after subluxation and the incisors underwent re-ankylosis soon thereafter. In the case with 2 separate procedures for subluxation, periapical inflammation was noted and treatment was performed for an infected root canal. After pulling, a small part of the tooth crown was covered with composite resin. At 2 years 9 months after subluxation, external root resorption was extremely advanced and the tooth was extracted. In the other case that underwent subluxation in a single procedure, slight external resorption in the cervical area of the root was seen in an examination peformed 2 years 8 months later.It is important to obtained informed consent which performing subluxation of an ankylosed incisor does not necessarily lead to a good result. The present cases did not have anamnesis from trauma to the permanent incisors, though that related to trauma to and/or extraction of prospective primary incisors can occur. It is also considered that trauma to and/or extraction of a prospective primary incisor can cause damage to permanent tooth germ and root peripheral tissues, which may be factors related to ankylosis of a proceeding permanent incisor.View full abstractDownload PDF (1232K) -
Case ReportMasamichi IDE, Nobuo KOGUSHI, Yoshinobu ASADA2012 Volume 50 Issue 4 Pages 313-319
Published: September 25, 2012
Released on J-STAGE: March 19, 2015
JOURNAL FREE ACCESSHypophosphatemic rickets (HR) is a rare hereditary disease in which spontaneous formation of a gingival abscess (GA) is a dental problem. This report describes longitudinal dental management of a child with HR from primary to permanent dentition.A 2-year-1-month-old boy with HR visited our pediatric dentistry clinic complaining of pain and swelling in the gingiva in the area of the maxillary left primary central incisor. Although caries was detected in that tooth, the extent was not considered severe enough to cause apical periodontitis existing in the same tooth. Since resorption and destruction of periodontal tissue were minimal, root canal treatment was performed. Eventually, GA formation occurred in a total of 17 primary teeth, of which 2 were indicated for extraction and the remaining 15 for root canal treatment. Formation of GA recurred in 4 of those teeth after root canal filling, thus that was repeated. All primary teeth that underwent root canal treatment maintained their function until the eruption stage of the successive permanent teeth, which then received prophylactic treatment. Normal permanent dentition was thus attained without occurrence of caries and GA.Our findings indicate that root canal treatment may be an effective treatment method for children with HR whose primary teeth are complicated with GA. Furthermore, instead of extraction, root canal treatment should be considered as the first choice of treatment for cases with minimal root resorption and periodontal tissue damage.View full abstractDownload PDF (855K) -
Case ReportKazu HIGA, Atsuko BABA, Hideki OGASAWARA, Kaori ISHII, Masao OZAKI2012 Volume 50 Issue 4 Pages 320-325
Published: September 25, 2012
Released on J-STAGE: March 19, 2015
JOURNAL FREE ACCESSA 9-year-6-month-old boy with an impacted lower first molar visited the Medical and Dental Hospital of Fukuoka Dental College. Radiographic findings showed that impacted first molar was positioned on the inferior edge of the mandible and under the second molar. Moreover, crowding of the upper and lower front teeth was noted, resulting in arch length discrepancy. We performed surgical exposure and a traction technique as therapy, and the impacted first molar became well positioned. In addition, expansion treatment was given, which induced correct dental articulation. We concluded that such treatments in the early stage are important for similar impacted molar cases.View full abstractDownload PDF (942K) -
Case ReportKayo YAMAKAWA, Takashi NAKANO, Akihito OTSUKA, Takeshi TOKURA, Masako ...2012 Volume 50 Issue 4 Pages 326-332
Published: September 25, 2012
Released on J-STAGE: March 19, 2015
JOURNAL FREE ACCESSWe treated a pediatric patient with oral symptoms suspected to be caused by neurosis. The patient was a 5-year-9-month-old girl who visited Aich-Gakuin Dental Hospital with the chief complaints of dental pain and occlusion discomfort.At the age of 4 years, she was diagnosed with childhood neurosis by a psychiatrist, and then visited a local dental clinic due to severe pain during mastication and at bedtime that had recently developed. The local dentist noted a unilateral cross bite in the left lateral primary dentition and no evidence of a condition that might be causing the pain.The patient was referred to our department for a detailed examination and treatment, as there was no improvement of the pain at a follow-up visit.We recognized the importance of providing an enviroment of acceptance and support for the patient and her parents during treatment. After establishing a good relationship with them, a behavioral approach and denture guidance were performed, with satisfactory results obtained.It is crucial to consider anxiety as a background of speech and behavior issues for management of pediatric patients with severe mental anxiety. Thus, diagnosis and behavior management should not be conducted only by dental personnel, as coordination with a psychiatrist is also important.View full abstractDownload PDF (1028K)
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