title: Does a mandibular RDP and new maxillary CD improve masticatory efficiency and quality of life in patients with a mandibular Kennedy class I arch?
abstract: OBJECTIVE
  To evaluate the change in masticatory efficiency and quality of life of patients treated with mandibular Kennedy class I removable partial dentures (RPDs) and maxillary complete dentures at the Department of Dentistry of the Federal University of Rio Grande do Norte.
  
  
  METHODS
  A total of 33 Kennedy class I patients were rehabilitated with maxillary complete dentures, and mandibular RPDs were selected for this non-randomized prospective intervention study. The patients had a mean age of 59.1 years. Masticatory efficiency was evaluated by colorimetric assay using fuchsin capsules. The measurements were conducted at baseline and 2 and 6 months after prosthesis insertion. Quality of life was evaluated using the Oral Health Impact Profile (OHIP-14) at baseline and 6 months after denture insertion. The Kolmogorov-Smirnov normality test was applied. Masticatory efficiency was evaluated by repeated measures ANOVA. Oral health-related quality of life was compared using the paired t test.
  
  
  RESULTS
  There was no statistically significant difference in masticatory efficiency after denture insertion (p = 0.101). Significant differences were found (p = 0.010) for oral health-related quality of life. A significant improvement in psychological discomfort (p < 0.01) and psychological disability (p < 0.01) was observed. Mean difference value (95 % confidence interval) was 6.8 (3.8 to 9.7) points, reflecting a low impact of oral health on quality of life, considering the 0-56 range of variation of the OHIP-14 and a Cohen's d of 1.13.
  
  
  CONCLUSIONS
  According to the results of the present study, rehabilitation with Kennedy class I RPDs and complete dentures did not influence masticatory efficiency but improved oral health-related quality of life.
  
  
  CONCLUSIONS
  The association between the patient's quality of life and the masticatory efficiency is important for treatment predictability.
authors.affiliation: Department of Dental Materials and Prosthodontics, Oral Rehabilitation Program-Araraquara School of Dentistry UNESP-Univ. Estadual Paulista, Centro, 14801903, Araraquara, SP, Brazil. kassiaodonto@hotmail.com.|Department of Dental Materials and Prosthodontics, UNESP-Univ. Estadual Paulista, Centro, 14801903, Araraquara, SP, Brazil. kassiaodonto@hotmail.com.
authors.forename: Kássia
authors.initials: K
authors.lastname: De Carvalho Dias
authors.affiliation: Center of Health Science, Department of Dentistry, Federal University of Rio Grande do Norte, Avenida Salgado Filho, 1787, Lagoa Nova, 59056-000, Natal, RN, Brazil.
authors.forename: Adriana
authors.initials: A
authors.lastname: Da Fonte Porto Carreiro
authors.affiliation: Center of Health Science, Federal University of Rio Grande do Norte, Avenida Senador Salgado Filho, 1787, Lagoa Nova, 59056-000, Natal, RN, Brazil.
authors.forename: Camila Maria
authors.initials: CM
authors.lastname: Bastos Machado Resende
authors.affiliation: Center of Health Science, Federal University of Rio Grande do Norte, Avenida Senador Salgado Filho, 1787, Lagoa Nova, 59056-000, Natal, RN, Brazil.
authors.forename: Ana Clara
authors.initials: AC
authors.lastname: Soares Paiva Tôrres
authors.affiliation: Department of Pediatric Clinic and Preventive and Sanitary Dentistry, University of São Paulo, Dental School of Ribeirão Preto, Avenida do Café s/no, Monte Alegre, 14040-904, Ribeirão Preto, SP, Brazil.
authors.forename: Wilson
authors.initials: W
authors.lastname: Mestriner Júnior
mesh_terms: D003724:Dental Arch / Q000473:pathology*; D003824:Denture, Complete; D003832:Denture, Partial, Removable; D005260:Female; D006801:Humans; D008297:Male; D008334:Mandible / Q000473:pathology*; D008409:Mastication / Q000502:physiology*; D008437:Maxilla / Q000473:pathology; D008875:Middle Aged; D011446:Prospective Studies; D011788:Quality of Life
keywords: Dental prosthesis; Mandible; Mastication; Partially edentulous arch; Quality of life