THE JOURNAL OF THE ACADEMY OF CLINICAL DENTISTRY
Online ISSN : 1884-8230
Print ISSN : 1346-8111
ISSN-L : 1346-8111
Volume 27, Issue 1-2
Displaying 1-16 of 16 articles from this issue
  • Yoshihiro Kotsubo
    2007 Volume 27 Issue 1-2 Pages 16-23
    Published: April 23, 2007
    Released on J-STAGE: September 09, 2010
    JOURNAL FREE ACCESS
    Recently, magnetic attachments have been accepted as a dental practice with predictable retention elements and with positive prognosis. These magnetic attachments are now available in a variety of designs that have a broad range of uses for general practitioners. Japan has rapidly changed to an elderly society, and the percent of over 65-year-old elderly will reach 32% in 2050. The people with poor alveolar arch increase and it makes denture managements more difficult. Magnetic attachments helps to retain denture easily, therefore it has become popular in prosthetic treatment. Benefit of magnetic attachment is the chronological consistency of retention force. Implants have been effective retainers, which increase the stability of dentures and mastication efficiency.They have also improved the quality of life of patients. There are a number of retainers. However, the bar attachments and magnetic attachments provide relatively high stability compared to others.
    I would like to present a summary and the use of these systems in a few cases in our study and examine each system.
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  • —Part 2 Application to Pain of TMD—
    Nobuo Ishihata, Yoshiaki Nomura, Hiroshi Mizutani
    2007 Volume 27 Issue 1-2 Pages 24-31
    Published: April 23, 2007
    Released on J-STAGE: September 09, 2010
    JOURNAL FREE ACCESS
    According to our Kamiguse theory, TMD is caused by restriction of temporomandibular movement, and this theory was introduced in detail in our previous paper. In this paper, we will present some TMD clinical cases where this Kamiguse theory is very effective to control the temporomandibular joint pain . We conclude that good prognoses to treat TMD patients are obtained standing on this view point of Kamiguse.
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  • Utako Sugano, Hiroyasu Sugano
    2007 Volume 27 Issue 1-2 Pages 32-39
    Published: April 23, 2007
    Released on J-STAGE: September 09, 2010
    JOURNAL FREE ACCESS
    We meet a tremendous number of cases that require occlusal reconstruction in daily clinical procedure. No matter what kinds of dental prosthesis are used, no matter how many teeth are missing, “a stable mandibular position” is the most essential for occlusal reconstruction. In the literature on occlusion this, somewhat obvious, point and its significance are clearly agreed upon. However, assessing the mandibular position in daily clinical procedure still tends to be thought of as “something special”.
    The mandibular position should be considered from the muscle position, not from the occlusal position, nor the condylar position, because a relaxed position with no abnormal strain is the most appropriate position to use as “the stable mandibular position” for a person.
    When the mandibular position is assessed, or when final prostheses are made and settled after proper adjustment of provisional restorations, or using an occlusal splint if a case needs it, the most important point is how to obtain a maxillomandibular relation which can be used to exactly reproduce a patient's current mandibular position. To register under force, even if it's just very weak force such as upper and lower teeth touching together very lightly, can easily spoil a stable mandibular position.
    Although Lucia's Anterior Gig Method, Leaf Gauge Method and Gothic Arch Tracing Method are thought to be able to register a maxillomandibular relation without any force, actually they do make force and do affect the mandibular position. A large scale implement, such as a mandibular movement recorder, also absolutely affects the mandibular position, and is highly likely to spoil a stable mandibular position. To assess the mandibular position and to assess a mandibular movement is not the same thing, plus the purpose is different.
    Considering all the aforementioned points, three different clinical cases; Crown-Bridge, Crown-Bridge with Temporomandibular Disorder and Complete Denture, which require occlusal reconstruction, are included to show how a mandibular position should be considered. Altered Chin Point Method was used to register the maxillomandibular relation, and Denar's Centric Relator and Vericheck Instrument were used for assessing the mandibular position with Split Cast Technique.
    Assessing the mandibular position regularly as a part of normal, daily clinical procedure will lead to a healthy state of occlusion that will continue for a long time.
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  • —Consideration for Minimizing Risk Factors—
    Shuichiro Kokuga
    2007 Volume 27 Issue 1-2 Pages 40-49
    Published: April 23, 2007
    Released on J-STAGE: September 09, 2010
    JOURNAL FREE ACCESS
    To obtain maximum satisfactory results by minimal intervention, ‘Comprehensive dentistry’, proposed by Drs. Masahide and Teruko Tsutsui, contains two major concepts. One is control both infection and function. The other is appropriate treatments and maintenance based on precise assessments and diagnosis. Both micro-to macro-scopic insight and combined treatment of topdown and bottom- up are required to put above concepts into practice. Especially, accuracy of the procedure and process in each step and/or propriety of the objective reassessment influence the results seriously in the case which needs occlusal reconstraction.
    In this article, I present the essential points in treatments of the occlusal reconstraction through my struggled experience.
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  • Hiroshi Fujimoto
    2007 Volume 27 Issue 1-2 Pages 50-59
    Published: April 23, 2007
    Released on J-STAGE: September 09, 2010
    JOURNAL FREE ACCESS
    We should define what we shall preserve and pursue when we confront a patient's mouth whose bite has collapsed. Our aims are to promote re-activating a patient's original healing capacity, the reproduction of beautiful natural teeth, and the construction of an easily maintained environment. We need to diagnose on investigation of cause, set a treatment goal according to the diagnosis, and make a treatment plan.
    When actually treating, as much as possible we preserve the periodontal tissue, including remaining teeth and alveolar bone. Then treat the diseased bite with the use of various options such as implants, orthodontics, regenerative treatment, prosthesis, etc. It is thought that it is necessary to give the therapeutic occlusion to recover the health of the mouth, and prepare an environment that both the dentist and patient can easily maintain.
    Collecting, analyzing necessary and sufficient material, diagnosing based on investigation of cause, and selecting appropriate treatment options become keys to the treatment's success. In other words, the success or failure of a treatment for case is decided by the quality of the diagnosis. To give an accurate diagnosis of individual cases is the dentist's first requirement.
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  • Toshikatsu Kinoshita
    2007 Volume 27 Issue 1-2 Pages 60-69
    Published: April 23, 2007
    Released on J-STAGE: September 09, 2010
    JOURNAL FREE ACCESS
    With recent progress in the development of medical devices, functional movements of the mandible chewing can be examined easily, even in daily clinical conditions. When the author studied gnathology several years ago, patients were treated using articulators, though that method could not be utilized in all cases. One of the major reasons is because of varying masticatory processes in patients and the rigid function of the articulator. In actual mastication, chewing is not performed by border movement and chewing movements follow a track that is different from that of border movement. Thus, chewing movements are greatly affected by occlusal table morphology.
    In the present study, problems of occlusal analysis were investigated by reviewing cases that had undergone treatment mainly with an articulator when images of mandibular movement during actual chewing movements were not available. In addition, occlusal treatment procedures used in a comprehensive dental clinical practice are presented.
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  • Kung-Liang Chao, Wen-Shiang Hsu, Chien-Hsing Chu, Yuan-Yuan Chang
    2007 Volume 27 Issue 1-2 Pages 70-77
    Published: April 23, 2007
    Released on J-STAGE: September 09, 2010
    JOURNAL FREE ACCESS
    Download PDF (14153K)
  • Takeo Sadanaga
    2007 Volume 27 Issue 1-2 Pages 78-83
    Published: April 23, 2007
    Released on J-STAGE: September 09, 2010
    JOURNAL FREE ACCESS
    5patients (8 implants) with edentulous or unilateral or bilateral free-end saddles in the mandible were treated with the use of fixed prostheses despite having severe alveolar atrophy that exposed the neurovascular bundle at the crest of the residual alveolus. The 1 implant area of I patient has remained postoperative paresthesia. The other implants, sensory function returned to normal with in 3 months.
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  • Shigeru Fujino, Hidetoshi Takashima, Kazutaka Sugiyama
    2007 Volume 27 Issue 1-2 Pages 84-91
    Published: April 23, 2007
    Released on J-STAGE: September 09, 2010
    JOURNAL FREE ACCESS
    Clinical application of the titanium endosseous implant treated by electric discharge machining (IAT Fit®, ISIFUKU Co.) has started in 1995. In this study, 297 implants were placed in 96 patients (38 males and 58 females) aged 24 to 77 years at 3 facilities . There were 56 implants placed in the posterior maxilla and 241 implants in the posterior mandible. Of the 297 implants placed, 13 implants failed within the connection of completed prostheses after placement because of the early failure of osseointegration, and 8 failed during the period of observation.
    The survival rates of the implant were assessed using a life table method. The factors investigated were the implant location, mandible/maxilla, and the implant length, 8mm/10mm or more. The total survival rate was 95.6% up to 5-10 years. On the location and length of the implants, no statistical difference existed between these results.
    The clinical results indicated that the titanium endosseous implant treated by electric discharge machining was effective in long-term treatment of patients regardless of the location and length of the implant.
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  • Junichi Masuya
    2007 Volume 27 Issue 1-2 Pages 92-101
    Published: April 23, 2007
    Released on J-STAGE: September 09, 2010
    JOURNAL FREE ACCESS
    Recently, the occlusal reconstruction using the dental implant has become a predictable alternative and is scientifically well acknowledged. However, even when we encounter to patients with para-function and intensive occlusal force, the implant treatment is only a part of the process. It is essential to understand that the Provisional Restoration after the implantation is the key in achieving a balanced occlusion. This means that out of the elements which consists from esthetics, function, biology and structure, it is especially important to examine the elements, function (chewability) and structure (infrangibility) . This is made possible by a cautious clinical follow up to make minor adjustments and in some cases, this may result in a change of treatment planning.
    There exists numerous clinical parameters such as bridge or implant; single or jointed crown; the material selection; the decision of guiding teeth; or the configuration of the suprastructure. Keeping all these parameters in mind, the application of the knowledge obtained from the diagnostic wax-up to the Provisional Restoration, enable us to make the best choice which leads to a final restoration with an esthetic biology.
    In this case presentation, the importance of the Provisional Restoration will be discussed mainly focusing on treatment planning and treatment goal setup.
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  • —Report of a 2.5years-Follow-up Patient—
    Masafumi Wakita
    2007 Volume 27 Issue 1-2 Pages 102-107
    Published: April 23, 2007
    Released on J-STAGE: September 09, 2010
    JOURNAL FREE ACCESS
    An advantage Immediate Implant placement in the Anterior Maxilla extraction socket is below Reduction of treatment. I extracted a tooth No8 and tried to an placement Implant Immediately. I had a good result, therefore I report this case.
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  • Eigo Mitsubatashi
    2007 Volume 27 Issue 1-2 Pages 108-117
    Published: April 23, 2007
    Released on J-STAGE: September 09, 2010
    JOURNAL FREE ACCESS
    Unlike corrective and prosthetic treatment of occlusions, orthodontic treatment generally involves reconstruction of the entire temporomandibular joint. Such treatment is characterized by change and adaptation of the mandible and neurocranium associated with occlusal changes. Particularly in young individuals, the adaptation may be used for treatment; however, inappropriate occlusal change is likely to induce dysfunction. In this context, mandibular position is important. The outcome of orthodontic treatment appears to depend on whether or not the mandibular position is carefully examined. First, location of the mandible (therapeutic reference position) is important, because the direction and distance of tooth movement depends on the mandibular position at which occlusion is established. It is difficult to assess the mandibular position, and thus dysfunction is examined by cephalometric analysis and functional analysis, and with the use of a SAM articulator, mandibular position indicator (MPI), CADIAX, etc. At our clinic. In addition, many malocclusions can be corrected when skeletal malocclusion is evaluated in relation to the vertical dimension with consideration of the relationship to the cranial base. Some articles report that more than 30% of adults had disk displacement. It appears to be important to establish functional occlusion not only for aesthetic aspects, but also as a goal of individual orthodontic treatment.
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  • Kazumi Arai, Asako Anzyo
    2007 Volume 27 Issue 1-2 Pages 118-125
    Published: April 23, 2007
    Released on J-STAGE: September 09, 2010
    JOURNAL FREE ACCESS
    Periodontal Disease what said for most japanease adults to fall ill is called Lifestyle-related disease with internal medicine-disease what is represented by cavity and metabolic-syndrome. Periodontal Disease cannot but get into certain prosthetic dentisitry disposal, because if once it goes on, the difference of a grated it that it goes on certainly and is connected to destruction.
    Dental Hygienist have to continue supporting by neastling up to the patient as man, it not only gets to know Periodontal tissue and whole mouth, for many of the patients have a healthy and comfortable life led.
    And I am praying from the heart that many of the patients notices consciousness of protecting berth and begins to walk himself with autonomy.
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  • Part 4: Antiaging dental care and orthodontics
    Haruhisa Nakano, Fumiye Ohmori, Masato Kubota, Koutaro Maki
    2007 Volume 27 Issue 1-2 Pages 126-137
    Published: April 23, 2007
    Released on J-STAGE: September 09, 2010
    JOURNAL FREE ACCESS
    Recently, aging of the population accompanied by a reduction in the number of children is progressing rapidly due to prolongation of the mean lifespan and decreases in natality. This means that the burden placed on the public medical insurance system is approaching its limits. However, this burden can be reduced if many elderly people remain healthy. Thus, the aim of medical services must be changed from conventional ‘treatment of diseases’ to ‘prolongation of a healthy state in healthy people’. This is the essence of antiaging medicine. Similarly, in the fields of dentistry and orthodontics, which deal with health of the oral cavity, ‘prevention before the occurrence of disorders due to malocclusion’ is important in positive antiaging dental care.
    We performed early treatment in one patient with Labial inclination of the anterior teeth accompanied by traumatic occlusion of the mandibular anterior teeth, and in another patient with eruption disorder of the anterior teeth including an impacted tooth.
    1) As a result of the early treatment of maxillary protrusion accompanied by impression of the mandibular anterior teeth in the gingiva on the palatal side of the maxillary anterior teeth, not only could maxillary protrusion be successfully treated, but Labial inclination of the anterior teeth, median diastema, and regression of the gingiva on the palatal side of the maxillary anterior teeth due to collapse of the molar region could also be prevented.
    2) As a result of the early treatment of horizontal impaction of the maxillary right central incisor, crowding or root resorption of neighboring teeth due to the impacted tooth could be prevented.
    These results suggest that ‘prevention before the occurrence of disorders due to malocclusion’ is important in positive antiaging dental care.
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  • [in Japanese], [in Japanese]
    2007 Volume 27 Issue 1-2 Pages 138-143
    Published: April 23, 2007
    Released on J-STAGE: September 09, 2010
    JOURNAL FREE ACCESS
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  • [in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
    2007 Volume 27 Issue 1-2 Pages 144-147
    Published: April 23, 2007
    Released on J-STAGE: September 09, 2010
    JOURNAL FREE ACCESS
    Download PDF (9247K)
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