Prospective Clinical Study of Procera AllCeram Crowns : 2-3 year Preliminary Results
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概要
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Purpose: The Procera system was introduced in Japan in December 2000, however, there have been few clinical evaluations of the Procera AllCeram crowns. The purpose of this study was to prospectively evaluate the clinical performance of Procera AllCeram crowns.Methods: One hundred and one Procera AllCeram crowns were placed in patients oral cavities at the Tsurumi University Dental Hospital from July 2001 to October 2002. The performance of these crowns was evaluated using the California Dental Association (CDA) quality assessment system at baseline and at all followup examinations.Results: A total of 101, 97 and 67 crowns were examined at 1, 2 and 3 years after their fixation, respectively. During the three-year period, six crowns were removed because of fracture of the copings, fracture of the porcelain veneer, root fracture, or esthetic problems. Small incisal chips were detected in three crowns. All of the crowns examined were rated as satisfactory according to the CDA quality assessment criteria, except for the surface and anatomic form.Conclusion: During the 3-year follow-up period, six crowns were removed, yielding a cumulative survival rate of 93.2%. All (100%) of the Procera AllCeram crowns were rated as satisfactory in terms of the clinical performance according to the CDA criteria, and to be useful for both anterior and posterior teeth. However, the observation period was short, and evaluation over a longer period of time is necessary for a more precise evaluation of these crowns.
- 日本補綴歯科学会の論文
- 2006-04-01
著者
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Kokubo Yuji
Department Of Fixed Prosthodontics School Of Dental Medicine Tsurumi University
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Kokubo Yuji
Department Of Fixed Prosthodontics Tsurumi University School Of Dental Medicine
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TSUMITA Mitsuyoshi
Department of Fixed Prosthodontics, Tsurumi University School of Dental Medicine
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NAGAYAMA Yuki
Division of Oral and Maxillofacial Implantology, Tsurumi University School of Dental Medicine
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Sakurai Satoe
Division Of Oral And Maxillofacial Implantology School Of Dental Medicine Tsurumi University
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Nagayama Yuki
Division Of Oral And Maxillofacial Implantology Tsurumi University School Of Dental Medicine
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Fukushima Shunji
Department Of Fixed Prosthodontics School Of Dental Medicine Tsurumi University
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Fukushima Shunji
Department Of Fixed Prosthodontics Tsurumi University School Of Dental Medicine
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Ohkubo Chikahiro
Department Of Removable Prosthodontics School Of Dental Medicine Tsurumi University
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NAGAYAMA Yuki
Department of Fixed Prosthodontics, Tsurumi University School of Dental Medicine
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SAKURAI Satoe
Department of Fixed Prosthodontics, Tsurumi University School of Dental Medicine
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Fukushima Shunji
Dept. Of Fixed Prosthodontics Tsurumi Univ. School Of Dental Medicine
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Tsumita Mitsuyoshi
Department Of Fixed Prosthodontics School Of Dental Medicine Tsurumi University
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