title: Factors related to prosthetic restoration in patients with shortened dental arches: a multicentre study.
abstract: The aim of this study was to identify the factors related to prosthetic restoration in patients with shortened dental arches (SDA). SDA patients with 2-12 missing occlusal units were consecutively enrolled from seven university-based dental hospitals in Japan. Of the 145 subjects (mean age; 63·4 years), 41% chose no treatment and 59% sought to replace their edentulous spaces with removable partial dentures or implant-supported fixed partial dentures. Restoration decisions were related to tooth loss patterns. Only 3% of subjects missing just second molar(s) sought to receive prosthetic treatment, while the percentage increased to 58% in subjects who were missing first and second molars and 93% in subjects missing premolar(s). Logistic regression analyses found that young age, increased number of missing occlusal units, asymmetric arch and presence of chewing complaint were significant predictors for prosthetic restoration (P<0·05). Increased number of missing occlusal units and asymmetric arch were significant predictors for the presence of chewing complaint (P<0·05). These results suggest that perceived impairment of chewing ability owing to missing occlusal units is a critical factor for prosthetic restoration in SDA patients.
authors.affiliation: Section of Removable Partial Denture Prosthodontics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan. kunfu.rpro@tmd.ac.jp
authors.forename: K
authors.initials: K
authors.lastname: Fueki
authors.forename: Y
authors.initials: Y
authors.lastname: Igarashi
authors.forename: Y
authors.initials: Y
authors.lastname: Maeda
authors.forename: K
authors.initials: K
authors.lastname: Baba
authors.forename: K
authors.initials: K
authors.lastname: Koyano
authors.forename: Y
authors.initials: Y
authors.lastname: Akagawa
authors.forename: K
authors.initials: K
authors.lastname: Sasaki
authors.forename: T
authors.initials: T
authors.lastname: Kuboki
authors.forename: S
authors.initials: S
authors.lastname: Kasugai
authors.forename: N R
authors.initials: NR
authors.lastname: Garrett
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003724:Dental Arch / Q000002:abnormalities*; D003793:Dental Restoration, Permanent / Q000379:methods*; D003794:Dental Restoration, Temporary / Q000379:methods*; D005260:Female; D006801:Humans; D007564:Japan; D007576:Jaw, Edentulous, Partially / Q000534:rehabilitation / Q000628:therapy*; D008297:Male; D008409:Mastication; D008875:Middle Aged; D011446:Prospective Studies; D011788:Quality of Life