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Change in masticatory ability with the implant restoration of second molars

 Dae-Ho Nam  ;  Dong-Won Lee  ;  Chooryung J. Chung  ;  Kyung-Ho Kim  ;  Kwang-Ho Park  ;  Ik-Sang Moon 
 JOURNAL OF PROSTHETIC DENTISTRY, Vol.111(4) : 286-292, 2014 
Journal Title
Issue Date
Adaptation, Physiological/physiology ; Adult ; Aged ; Bite Force ; Cementation/methods ; Crowns/psychology ; Dental Implants, Single-Tooth*/psychology ; Dental Prosthesis, Implant-Supported/psychology ; Eating/physiology ; Female ; Follow-Up Studies ; Humans ; Jaw Relation Record/instrumentation ; Male ; Mastication/physiology* ; Middle Aged ; Molar* ; Patient Satisfaction ; Quality of Life ; Tooth Loss/rehabilitation ; Treatment Outcome
STATEMENT OF PROBLEM: Controversy exists as to whether missing second molars should be replaced to restore masticatory ability. PURPOSE: The purpose of this study was to analyze the alteration in masticatory ability associated with the implant restoration of the second molar; the subjective effect of implant treatment on the participant was also assessed. MATERIAL AND METHODS: Twenty-one individuals (13 men and 8 women) participated. Masticatory ability was recorded before the cementation of implant-supported single crowns, immediately after cementation, and 1 month after cementation. The occlusal load (Pa), the load-bearing contact area (mm(2)), and the maximum occlusal force (N) were calculated. A subjective evaluation of masticatory ability was conducted before treatment and 1 month after treatment through the use of a questionnaire to evaluate chewing difficulties and global satisfaction with treatment. The Wilcoxon signed rank test was used to analyze the difference in scores. RESULTS: The load-bearing contact area, maximum occlusal force, and participant satisfaction were found to increase significantly 1 month after the cementation of implant-supported single crowns. The restoration of the second molar with an implant increased both objective masticatory ability and subjective satisfaction 1 month after cementation of the implant-supported single crowns. CONCLUSIONS: Patients presenting with a missing second molar may benefit from replacement with implant-supported crowns. Longer study periods and larger sample populations are needed to obtain more definitive results.
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2. College of Dentistry (치과대학) > Dept. of Orthodontics (교정과학교실) > 1. Journal Papers
2. College of Dentistry (치과대학) > Dept. of Oral and Maxillofacial Surgery (구강악안면외과학교실) > 1. Journal Papers
2. College of Dentistry (치과대학) > Dept. of Periodontics (치주과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Kyung Ho(김경호) ORCID logo https://orcid.org/0000-0002-8154-2041
Moon, Ik Sang(문익상)
Park, Kwang Ho(박광호) ORCID logo https://orcid.org/0000-0003-1942-2986
Lee, Dong Won(이동원) ORCID logo https://orcid.org/0000-0003-1852-7989
Chung, Chooryung J.(정주령) ORCID logo https://orcid.org/0000-0001-9399-7193
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