Predictive Factors of Masticatory Performance in Post-maxillectomy Obturator Wearers with Soft Palate Defect That is Either Absent or Limited to the Anterior Part
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概要
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Purpose: Little objective investigation has been published regarding factors influencing masticatory performance of post-maxillectomy patients with obturator prosthesis. This study aimed to assess the relationship between masticatory performance and sociological and post-surgical factors, and to develop a theoretical equation predicting masticatory performance using significant factors.Methods: In 37 post-maxillectomy patients with obturator prosthesis, their age, gender, resection of hard and soft palate, number of posterior maxillary teeth, occlusal support, and mouth-opening distance on masticatory performance were investigated, and masticatory performance was measured using a gummy jelly. The influence of these items was evaluated quantitatively using multiple regression analysis (Quantification Method type I). The strength of influence of each explanatory factor on the masticatory performance, identified by the category weight and theoretical value of masticatory performance of each subject, was calculated by totaling the category weights and the constant. Pearson correlation coefficient was used to analyze the correlation between actual values and theoretical values of masticatory performance.Results: The order of strength of influence on masticatory performance was identified by the category weights: extent of hard palate resection (1229.9) > occlusal support (1113.0) > mouth-opening distance (280.8) > age (209.0) > resection of soft palate (194.2) > number of posterior maxillary teeth (186.4). There was a high correlation (R2=0.863, P<0.01) between the theoretical values calculated by the predictive equation and the actual values.Conclusion: Masticatory performance of post-maxillectomy patients could be predicted with high accuracy in patients with soft palate defect limited to the anterior part.
- 日本補綴歯科学会の論文
- 2007-07-01
著者
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Yamamoto Masaaki
Division Of Diabetes Metabolism And Endocrinology Department Of Internal Medicine Kobe University Gr
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Nokubi Takashi
Center Of Advanced Science And Innovation Osaka University
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HORI Kazuhiro
Division of Oromaxillofacial Regeneration, Osaka University Graduate School of Dentistry
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Hori Kazuhiro
Division Of Oromaxillofacial Regeneration Osaka University Graduate School Of Dentistry
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Hori Kazuhiro
Department Of Removable Prosthodontics And Oral Rehabilitation Division Of Oromaxillofacial Regenera
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Yamamoto Masaaki
Division Of Oromaxillofacial Regeneration Osaka University Graduate School Of Dentistry
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Ono Takahiro
Division Of Oromaxillofacial Regeneration Osaka University Graduate School Of Dentistry
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Ono Takahiro
Department Of Removable Prosthodontics And Oral Rehabilitation Division Of Oromaxillofacial Regenera
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KOHDA Hideki
Kohda Dental Clinic
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IWATA Hisayuki
Division of Oromaxillofacial Regeneration, Osaka University Graduate School of Dentistry
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SHIROSHITA Naoko
Division of Oromaxillofacial Regeneration, Osaka University Graduate School of Dentistry
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Iwata Hisayuki
Division Of Oromaxillofacial Regeneration Osaka University Graduate School Of Dentistry
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Shiroshita Naoko
Department Of Removable Prosthodontics And Oral Rehabilitation Division Of Oromaxillofacial Regenera
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