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Successor
Volume 50 (2006)
- Issue 4 Pages 511-
- Issue 3 Pages 345-
- Issue 2 Pages 145-
- Issue 1 Pages 1-
Predecessor
Volume 50, Issue 4
Displaying 1-13 of 13 articles from this issue
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Part III. Useful tips for brush-up your manuscript and corresponding to reviewers' commentsRyuji Hosokawa2006 Volume 50 Issue 4 Pages 511-518
Published: October 10, 2006
Released on J-STAGE: August 10, 2010
JOURNAL FREE ACCESSPreparing manuscript in English is a very high hurdle for most Japanese scientists, however it is quite importantthat your discovered new findings should be published in English in order to be widely recognized tooverseas researchers. The Japan Prosthodontic Society has published the official English peer-reviewed journalnamed PRP (Prosthodontic Research & Practice) since 2002, and the PRP will be published quarterly from 2006. The editorial committee of the PRP tries to avoid rejection as much as possible, and to give constructiveadvice to authors to accept their manuscripts submitted to the PRP. In order to give members of the Society abetter understanding of the PRP journal, we held so called “Skills Improvement Seminar for Submitting Articlesto the PRP” at the 115 th scientific meeting in Sapporo and the local branch scientific meetings. This papersummarizes the first half of the seminar in Sapporo, 2006 and describes the useful tips for the PRP authors.View full abstractDownload PDF (3968K) -
Part IV. Problems and Measures Revealed by a Reviewer in Submission of Articles Written in EnglishMasahiko Kikuchi2006 Volume 50 Issue 4 Pages 519-526
Published: October 10, 2006
Released on J-STAGE: August 10, 2010
JOURNAL FREE ACCESSIt is an obligation of researchers to publish results and knowledge obtained from research activities. In general, publication of research reports all over the world is more desirable than that within a country in order tomake significant results widely known. In Japan, dental research is being conducted in an excellent environmentand its quality tends to be higher than in other industrialized countries but it is not easy for Japanesepeople, who may be weak at English, to submit articles to overseas scientific journals and to be accepted forpublication. For this reason, some researchers may reluctantly submit articles to Japanese journals. The editorialcommittee of the Prosthodontic Research & Practice (PRP), the official English journal of the Japan Prosthodontic Society, follows an editorial policy of increasing the publication of articles by reviewing thework of and assisting postgraduate students and young doctors who are not used to writing or submitting articlesin English. This paper summarizes the lecture presented at the 115th scientific meeting of this Society, inwhich problems and measures concerning the submission of articles written in English were revealed in orderto encourage members to submit articles to the PRP.View full abstractDownload PDF (2297K) -
Hideyuki Koike, Yumiko Kato, Shuichiro Yamashita, Ken Kumita2006 Volume 50 Issue 4 Pages 527-533
Published: October 10, 2006
Released on J-STAGE: August 10, 2010
JOURNAL FREE ACCESSPatient: The patient was a 27-year-old male with a chief complaint of pain in the upper-left incisors. Theseteeth were diagnosed as chronic apical periodontitis and the cemented post-cores of these teeth had to be removedfor the following infected root canal treatment. The volume of metal core of the upper left central incisorhad already been greatly reduced to an unfavorable size, and we failed to remove the cemented post-coreusing the Little Giant Post Puller. A supplementary device that fitted to the core was cast to aid the Little Giant Post Puller to work properly. By using this device, the jaws of the Post Puller gripped the core securelyso that the instrument did not slip as the post was being unseated. Finally, the post-core was successfully removedwithout any troubles such as root fracture or postoperative pain.
Discussion: In the case reported here, the volume of metal core had already been greatly reduced by theprevious doctor, and there was a risk of metal fracture of the core if additional trimming of the core had beenperformed to accommodate the size of the Post Puller. The success in removing the post-core by the aid ofthe supplementary device might have been due to the skill of the operator, who was experienced in using the Post Puller and also well versed in both the advantages and disadvantages of the instrument.
Conclusions: Great satisfaction of both the patient and the operator were obtained, since the fabricated supplementarydevice worked well under the operator's proper judgment for solving this difficult case.View full abstractDownload PDF (3036K) -
Naomitsu Hamada, Mutsumi Nagata, Atsuko Hamada2006 Volume 50 Issue 4 Pages 534-541
Published: October 10, 2006
Released on J-STAGE: August 10, 2010
JOURNAL FREE ACCESSPatient: The free-end saddle-bridge (FESB) reported by Izikowitz in the 1970s and 80s was a cement-retainedcantilever bridge in combination with distal-end partial dentures on the mucosa. However, apart fromtransitional usage, reports of this appliance are very rare. In this report, FESB was applied as a final restorationin a patient with severe periodontitis.The patient was a 40-year-old female with all teeth suffering from advanced periodontitis who found it hardto masticate. All maxillary teeth revealed advanced pathologic periodontal pockets and severe tooth mobility.Periodontal treatment begun after removal of all hopeless teeth. The patient also had hypersensitivity andvomiting reaction to conventional dentures, therefore, a cement-retained FESB was used as a periodontaltreatment appliance. After endodontic, periodontal and surgical treatment, the final FESB restoration wasnewly-fabricated.
Discussion: Improvements in the periodontal parameters were observed. Through use of the FESB, not onlysequential treatments were smoothly carried out, but also the patient's QOL during the treatment period wasimproved and maintained.
Conclusion: The positive results indicate that the FESB may be effective in other similar cases and shouldbe considered as one of the prosthetic options.View full abstractDownload PDF (2720K) -
Hideaki Kato, Katsutoshi Wakabayashi, Huminori Iwasa, Tadaharu Kawawa, ...2006 Volume 50 Issue 4 Pages 542-551
Published: October 10, 2006
Released on J-STAGE: August 10, 2010
JOURNAL FREE ACCESSPurpose: The development of new biomaterials and the application of growth factors are expected for osseoustissue regeneration. Therefore, we developed a high-molecular complex material as a carrier for variousgrowth factors, and evaluated its effects on bone marrow-derived undifferentiated mesenchymal cells. Methods: We developed DAC 50-TYPE I collagen as a completely new gel by clone reaction of Type I-Acollagen with deacetylated chitin 50 (DAC 50), and performed three-dimensional culture of bone marrow-derivedundifferentiated mesenchymal cells in this complex material. In terms of cell proliferation and differentiation, cell proliferation tests and morphological observation by staining with hematoxylin and eosin (H-Estaining) were performed, alkaline phosphatase (ALP) activity was observed by ALP staining, and the expressionsof bone sialoprotein (BSP), ALP, osteopontin, osteocalcin, and glyceraldehyde-3-phosphatedehydrogenase (GAPDH) genes were evaluated by reverse transcription-polymerase chain reaction (RT-PCR). Results: Cell proliferation tests showed cell proliferation but no marked proliferation. H-E staining revealedthree-dimensional cell expansion. ALP staining was positive. RT-PCR confirmed the expression of all targetgenes except the osteocalcin gene.Conclusion: This new material did not damage bone marrow-derived mesenchymal cells and allowed theirthree-dimensional proliferation. This material may be useful as a new biomaterial for osseous tissue regeneration.View full abstractDownload PDF (3511K) -
Takanori Matsuzaki2006 Volume 50 Issue 4 Pages 552-560
Published: October 10, 2006
Released on J-STAGE: August 10, 2010
JOURNAL FREE ACCESSPurpose: Denture base material was immersed in various types of electrolyzed acidic functional water in orderto use electrolyzed acidic functional water for washing and disinfecting dentures. Temporal changes of thesurface roughness, glossiness, and color change were examined.Methods: Two kinds of denture base resins were immersed in four kinds of electrolyzed acidic functionalwater and tap water as control. The surface roughness, glossiness, and color change were measured eighttimes (before immersion, after immersion for 6 hours, 12 hours, 24 hours, 48 hours, 7 days, 14 days, 30 days).Two-way layout analysis between each material was done at 30 days (P <0.05). The immersion liquid was exchangedwith fresh solution every 24 hours.Results: Surface roughness and glossiness did not have a significant difference. Although color change didnot have a significant difference until 7 days, at 14 days after immersion a significant difference was found betweenthe control and 2 kinds of electrolyzed acidic functional water. Moreover, 30 days after immersion, asignificant difference was found between the control and 3 kinds of electrolyzed acidic functional water, andbetween 3 kinds of electrolyzed acidic functional water.Conclusions: As a result of immersing denture base resins in electrolyzed acidic functional water for 30 days, a significant difference was found in the color change. However, a significant difference was not found comparedwith tap water in the surface roughness and glossiness. It is suggested that the washing disinfectingmethod using electrolyzed acidic functional water is suitable for washing and disinfecting dentures.View full abstractDownload PDF (1867K) -
Hanako Satoh2006 Volume 50 Issue 4 Pages 561-564
Published: October 10, 2006
Released on J-STAGE: August 10, 2010
JOURNAL FREE ACCESSPatient: A 38-year-old male patient presented to our clinic with swelling in labial gingiva of the maxillary right central incisor. At the gingival margin of the affected tooth, soft dentin on the labial surface was observed. Prior to restoration, preoperative limited orthodontics extrusion followed by intentional replantation was performed, which provided healthy dentin on the gingival margin, then restoration was provided.
Discussion: After the crown restoration, no change has been observed in tooth mobility (Ma-M1). In addition, despite the gingival migration to the incisal direction, the patient did not complain of any discomfort or functional problem. At the 6-month recalls, the affected tooth has been followed up carefully by evaluating periodontal condition as well as occlusion. To date, no radiographic abnormalities including bone resorption have been observed.
Conclusion: Intentional replantation successfully provided an adequate biologic width prior to crown restoration.View full abstractDownload PDF (1714K) -
Keita Sumiyoshi2006 Volume 50 Issue 4 Pages 565-568
Published: October 10, 2006
Released on J-STAGE: August 10, 2010
JOURNAL FREE ACCESSPatient: A 49-year-old female patient was referred to our clinic and presented with complaints of esthetic difficulty and chewing difficulty. Her lower bilateral molars had been replaced by an implant-supported bridge respectively, and the upper partially edentulous jaw had been replaced by an implant-supported overdenture. Magnetic attachments were used as attachments of the overdenture.
Discussion: As neither implant of the upper jaw was connected, a concentration of stress related to the specific implant had developed during eccentric and functional movements. However, at annual observations, no absorption of the alveolar bone had previously been detected radiographically.
Conclusion: Magnetic attachments were used for the implant supported overdenture in this patient for the past three years and no troubles or difficulties have been reported by the patient. It is concluded that the placement of a magnetic attachment is a useful attachment for implant-supported overdentures.View full abstractDownload PDF (2340K) -
Tetsuya Isomura2006 Volume 50 Issue 4 Pages 569-572
Published: October 10, 2006
Released on J-STAGE: August 10, 2010
JOURNAL FREE ACCESSPatient: A 58-year-old female patient presented with masticatory and dentogenic dysfunction. The treatment provided was occlusal reconstruction with a unilateral free end saddle removable maxillary partial denture with a single distal cantilever bridge and a natural tooth implant supported by a rigidly fixed prosthesis for the mandible.
Discussion: After 13 years of use, the final restorations, an upper denture with attachments and the lower implant and tooth supported prosthesis, are in satisfactory condition. Although it is contra-indication to connect natural teeth and implants because of different responses to loading, in this case the rigid fixing of a number of teeth with implants led to occlusal contacts and forces to be spread, and thus to a reduction of the natural tooth mobility to a level compatible for the implants.
Conclusion: As a result of the factors discussed, the patient's occlusion has been maintained using the occlusal reconstruction and has been stable for a long time.View full abstractDownload PDF (1897K) -
Norio Hori2006 Volume 50 Issue 4 Pages 573-576
Published: October 10, 2006
Released on J-STAGE: August 10, 2010
JOURNAL FREE ACCESSPatient: A 58-year-old man came to our department with the chief complaint of tumors of the upper first molar on the left side. Symptoms of the left mandible joint were seen at the same time. As a result of various examinations, it was considered that occlusal disharmony and heavy periodontal disease were the causes. Reconstruction of the occlusion was used as the objective criterion, with excellent results. In the four years after completion of the final prosthetics, excellent conditions were maintained.
Discussion: The vertical dimension, occlusal plane and guidance inclination of the occlusal surface are critical factors in the reconstruction of occlusion. It is thought that these settings for organic congruents protect the teeth, periodontal tissue and temporomandibular joint.
Conclusion: It is suggested that organic harmony in the reconstruction of occlusion is an important factor for an excellent prognosis. Moreover, it is effective for re-evaluation.View full abstractDownload PDF (2140K) -
Takeya Uchida2006 Volume 50 Issue 4 Pages 577-580
Published: October 10, 2006
Released on J-STAGE: August 10, 2010
JOURNAL FREE ACCESSPatient: The patient was a 45-year-old female with the chief complaint of unpleasantness of maxillary right incisors (21) and masticatory disturbance due to missing lower molars (67), which resulted in an irregular occlusal plane. First, periodontal treatments including orthodontic extrusion of the maxillary right incisors were performed, then the occlusal plane was corrected in the maxillary left molar region. Lastly, occlusal reconstruction was functionally and esthetically performed. The occlusal condition at 10.5 years later indicated good results, maintaining almost the same gingival level as before.
Discussion: Orthodontic extrusion is useful for not only esthetic but also periodontal reasons.
Conclusion: Long-term periodontal success was obtained through orthodontic extrusion and periodontal surgery as preprosthodontic treatment.View full abstractDownload PDF (2260K) -
Toyokazu Chiba2006 Volume 50 Issue 4 Pages 581-584
Published: October 10, 2006
Released on J-STAGE: August 10, 2010
JOURNAL FREE ACCESSPatient: The patient was a 26-year-old female with the complaint of esthetic dissatisfaction. The orthodontic diagnosis was bimaxillary protrusion, and prosthodontic treatment was performed after improving the teeth axis by orthodontic teeth movement.
Discussion: It was considered that improving the anterior teeth axis by preprosthetic treatment facilitated the prosthodontic treatment.
Confirmation of the inclination of the mandibular guidance using the provisional restoration was effective for prosthodontic treatment harmonized with the mandibular movement.
Conclusion: Favorable clinical results, both esthetically and functionally, were obtained after the lapse of 3 years.View full abstractDownload PDF (2082K) -
Makoto Okamoto2006 Volume 50 Issue 4 Pages 585-588
Published: October 10, 2006
Released on J-STAGE: August 10, 2010
JOURNAL FREE ACCESSPatient: A 66-year-old male complained of unstable maxillary complete denture and soreness during masticatory movement. He had a maxillary ridge exhibiting severe resorption and the mandibular bilateral second molar was missing. Upon examination of the relationship of the maxillomandibular occlusal supporting area, the diagnosis was antero-posterior discrepancy between the maxillary occlusal supporting area and mandibular teeth. Therefore, mandibular partial denture prosthesis was needed for the missing bilateral second molar. The patient was satisfied with the prosthesis during masticatory movement and other functional movements.
Discussion: It was important in this case that the diagnosis for the mandibular partial denture prosthesis could be given based on an examination of the relationship of the maxillomandibular occlusal supporting area.
Conclusion: This new method of examining the relationship of the maxillomandibular occlusal supporting area could be useful for diagnosis and adoption of occlusal schema.View full abstractDownload PDF (2175K)
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