title: Analysis of masticatory cycle efficiency in complete denture wearers.
abstract: OBJECTIVE
  This study assessed masticatory efficiency and duration of the masticatory cycle in 14 asymptomatic patients with severe bone resorption. All patients had worn complete dentures for over 10 years. Recall visits were scheduled at 5 months and 1 year after receiving new dentures.
  
  
  METHODS
  Fourteen patients were evaluated in this study. The Research Diagnostic Criteria questionnaire and tests of the efficiency and duration of the masticatory cycle were performed with artificial food before, 5 months after, and 1 year after new dentures were delivered. Masticatory efficiency was assessed using a sieve system; artificial food was ground for 35 masticatory cycles and monitored by the operator.
  
  
  RESULTS
  Masticatory efficiency at 5 months was significantly improved for the 0.42-mm mesh. An improvement in masticatory efficiency and a reduction in mastication time were observed with the new dentures after 1 year.
  
  
  CONCLUSIONS
  The results of this study indicated that 5 months did not allow enough time to demonstrate improved muscular capacity and ability after receiving new dentures. After 1 year, the duration of the masticatory cycle was reduced, and masticatory efficiency was significantly improved.
authors.affiliation: Department of Dental Materials and Prosthodontics, UNESP, São Paulo State University, Araçatuba, Brazil. goiato@foa.unesp.br
authors.forename: Marcelo Coelho
authors.initials: MC
authors.lastname: Goiato
authors.forename: Alício Rosalino
authors.initials: AR
authors.lastname: Garcia
authors.forename: Daniela Micheline
authors.initials: DM
authors.lastname: Dos Santos
authors.forename: Paulo Renato Junqueira
authors.initials: PR
authors.lastname: Zuim
mesh_terms: D000368:Aged; D016301:Alveolar Bone Loss / Q000503:physiopathology* / Q000534:rehabilitation; D003824:Denture, Complete; D005260:Female; D006801:Humans; D008297:Male; D008409:Mastication / Q000502:physiology*; D011795:Surveys and Questionnaires; D013997:Time Factors; D014716:Vertical Dimension